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VFP C++ COMPILER USER MANUAL
January 2024
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(C)SHENZHEN BAIYUJIA SOFTWARE TECHNOLOGY CO., LTD.
/----------------------------------\
| Chapter 1 DEVELOPMENT BACKGROUND |
\----------------------------------/
Visual FoxPro 9.0 is the latest and the last version of Microsoft's dBASE-
compatible software development platform.
dBASE was created by Ashton-Tate Corporation, who released dBASE II in 1980.
Fox Software Corporation, the most successful competitor, released FoxBASE in 1984.
Finally Microsoft bought Fox Software in 1992 (for about $173 million).
When Visual FoxPro 9.0 was released in 2004, after 40 years passed by with
Ups and Downs, Microsoft's data-centric development platform is still used by many
developers and companies. This seems to be a miracle!
However, VFP always has been a "pseudo" compiler which outputs "p-code" that,
generally, cannot be protected against de-compilation. In fact, there are a lot of
VFP decompilers available, such as ReFox, UnFoxAll and VFPDecoder, to name only a few.
VFP always was - and still is: "only a pseudo-compiler"! This has always been the
weakest point of VFP viewed from the user/developer's perspective. Although there
are some VFP encryption software systems available, none of them is able to protect
VFP's P-code completely against ALL available decompilers!
What do you think? Is there REALLY NO WAY to make VFP a full-blown native-code
compiler like MASM, C/C++ and Delphi? Today, an old saying comes true again: Nothing
Is impossible! There it is, your native-executable compiler for Visual FoxPro!
/-------------------------------\
| Chapter 2 PROGRAM ENVIRONMENT |
\-------------------------------/
1. The hardware environment:
IBM-compatible PC machine (PentiumIII 800MHz or above CPU, 256MB or more
memory).
2. The software environment:
Microsoft Windows 2000, Windows XP, Windows Vista, Windows 7, Windows 8,
Windows 8.1, Windows 10 (x86/x64).
Microsoft Visual FoxPro 6.0, Visual FoxPro 7.0, Visual FoxPro 8.0,
Visual FoxPro 9.0, Visual FoxPro Advanced, Visual FoxPro Advanced (x64).
Microsoft Visual C++ 6.0 (Visual Studio 98), Visual C++ 7.0 (Visual Studio .NET),
Visual C++ 7.1 (Visual Studio .NET 2003), Visual C++ 8.0 (Visual Studio 2005),
Visual C++ 9.0 (Visual Studio 2008), Visual C++ 10.0 (Visual Studio 2010),
Visual C++ 11.0 (Visual Studio 2012), Visual C++ 12.0 (Visual Studio 2013),
Visual C++ 14.0 (Visual Studio 2015), Visual C++ 14.1 (Visual Studio 2017),
Visual C++ 14.2 (Visual Studio 2019), Visual C++ 14.3 (Visual Studio 2022).
/---------------------------\
| Chapter 3 INSTALL PROGRAM |
\---------------------------/
1. Install VFP C++ Compiler:
VFP C++ Compiler is a GREEN-SOFTWARE, we can copy to the hard disk and run.
Run the setup program VCSETUP.EXE can Install VFP C++ Compiler to the folder
C:\Program Files\Baiyujia VFP C++ Compiler.
2. Run VFP C++ Compiler:
Double-click the shortcut VFP C++ Compiler on the desktop, or run C:\Program Files\
Baiyujia VFP C++ Compiler\VC.EXE, we can entry the VFP C++ Compiler main form.
Now we can double-click VCTEST\VCTEST.VCF, and click "Start Compile",
after compile completed, then generated VCTEST.EXE and VCTEST.DLL. And then
double-click VCTEST.EXE to start the test program, if the test program is
normal that VFP C++ Compiler has been installed successfully.
/-----------------------------\
| Chapter 4 DECLARE VARIABLES |
\-----------------------------/
1. Variables category
VFP C++ Compiler divided variables into general variables, category variables
and macro variables.
General variables: Except category variables and macro variables, such as:
x1, x2 and so on.
Category variables: If declare abc*, the variables beginning of abc are
category variables.
Macro variables: If declare xyz&, the variables beginning of xyz are macro
variables.
2. Declare variables
1, declare general variables
In VFP, there are a few methods to declare variables, such as:
Method 1: x1=123
Method 2: STORE 123 TO x1
Method 3: PUBLIC x1, PRIVATE x1, LOCAL x1, ... TO x1, ... TO ARRAY x1 and
so on.
VFP C++ Compiler only process the case of method 1. In other words, if we use
the x1=123, VFP C++ Compiler will compile x1 to internal name; if the variable x1 in
another file, but the file has not been included in the final executable file,
then we can use STORE 123 TO x1, so x1 will not be compiled to internal name.
2, declare category variables
In VFP, there are:
DISPLAY MEMORY LIKE abc*
SAVE TO FileName ALL LIKE abc*
RELEASE ALL LIKE abc*
VFP C++ Compiler can accurately identify these statements, and as a category
variable abc* to compile.
We can also use the following format to declare category variable:
* LIKE abc*
If declare category variable abc*, then abc will be compiled to __vc_xxx,
abc123 will be compiled to __vc_xxxa, abcdef will be compiled to __vc_xxxb and
so on.
If declare category variable abc*, we must declare all variables beginning
of abc. In other words, the following statements may be happen an error when run:
* LIKE abc*
abc123=123
STORE "abcdef" TO abcdef
Or we can set:
/VCNAMECATEGORY=OFF does not Compile Category Variable Names
to resolved the problem.
3, declare macro variables
We can use the following format to declare macro variable:
* LIKE xyz&
If declare macro variable xyz&, then xyz will be compiled to __vc_xxx,
xyz123 will be compiled to __vc_xxx123, xyzdef will be compiled to__vc_xxxdef
and so on.
If declare macro variable xyz&, we must declare all variables beginning of
xyz. In other words, the following statements may be happen an error when run:
* LIKE xyz&
xyz123=123
STORE "xyzdef" TO xyzdef
Or we can set:
/VCNAMEMACRO=OFF does not Compile Macro Variable Names
to resolved the problem.
3. Declare procedures
Same as declare variables, we must explicitly declare the procedure name
need to compile.
If only:
PROCEDURE pabc
VFP C++ Compiler will not compile pabc to internal name.
If we have:
PROCEDURE pabc
* pabc=
VFP C++ Compiler will compile pabc to internal name.
Recommend use the following standard format to declare procedures and
variables:
PROCEDURE pabc
PARAMETERS m.x1, m.x2
* pabc=
* m.x1=
* m.x2=
PRIVATE m.x3
m.x3=0
4. Reserved words
Reserved words include reserved words of VFP and common Win32API function
names, DECLARE function names are also reserved words.
VFP C++ Compiler will automatically compile reserved words to internal name,
users do not have to do a special process.
Proposed do not use reserved words as variable names, process names, field
names, etc., that may make conflicts.
/-----------------------------------\
| Chapter 5 COMMAND LINE PARAMETERS |
\-----------------------------------/
Run VC.EXE /? will display the details of command line parameters:
VFP C++ Compiler for Windows XP
(C)SHENZHEN BAIYUJIA SOFTWARE TECHNOLOGY CO., LTD.
Usage: VC VFP project file
VFP run file
C/C++ compiler file
Compile options
/HELP Help
/VCLEVEL=n Compile and Encrypt Level
/VCPRG=ON|OFF Compile Program Files
/VCSCX=ON|OFF Compile Form Files
/VCSTRUC=ON|OFF Compile Structured Programming Commands
/VCOPT=ON|OFF Optimize Code
/VCOPT2=ON|OFF Optimize Code Level II
/VCENCRYPT=ON|OFF Encrypt Executable File
/VCPACKEXE=ON|OFF Compress Executable File
/VFPLIB=ON|OFF Include VFP Support Library
/VCLIB=ON|OFF Include Visual C++ Library
/VCPACKDLL=ON|OFF Compress Dynamic Link Library File
/VCPACK=ON|OFF Pack Executable File
/VCSTEP=ON|OFF Single Step Compile Mode
/DEBUG=ON|OFF Debug Mode
/APPDEBUG=ON|OFF Application Debug Mode
/APPERROR=ON|OFF Application Error Log File
/SILENT=ON|OFF Silent Mode
/SILENTDISPLAY=ON|OFF Silent Display Mode
1. VFP project file
Usually, It can be specify a VFP project file with file extension is PJX,
we can also specify as follows:
1, VFP program file with file extension is PRG, if the project is only
one PRG file.
2, VFP list file with file extension is LST, the file stored a list of
the files, such as VCTEST.LST:
CONFIG.FPW
VCTEST.PRG
VCTEST.SCX
VCTEST.FRX
The first PRG file is the main file, and support the *? wildcards.
3, VFP C++ Compiler start file with file extension is VCF, the file stored
command line parameters, such as VCTEST.VCF:
VCTEST.PJX ; VFP project file
VFP9\VFP9.EXE ; VFP run file
FOXRUN7\MAKE.BAT ; C/C++ compiler file
/VCLEVEL=1 ; Compile and Encrypt Level
/VCOUTPUTEXE=... Output Executable File
/VCOUTPUTDLL=... Output Dynamic Link Library File
Usually, the output executable file name is the same as the project file name,
the file extension is EXE or DLL, we can also specify the output executable file name.
Usually, the output dynamic link library file name is the same as the output
executable file name, the file extension is DLL or EXE.
To the COM server program, VFP C++ Compiler only supports the VFP project file
with file extension is PJX.
VFP C++ Compiler can compile a COM server program as:
1, Win32 executable / COM server program, the file extension is EXE, the
dynamic link library extension is DLL;
2, Single-threaded COM server program, the file extension is DLL, the
dynamic link library extension is EXE;
3, Multi-threaded COM server program, the file extension is DLL, the
dynamic link library extension is EXE.
VFP C++ Compiler only compile the COM server program, it does not process the
COM server program registration.
2. VFP run file
We can specify VFP run file such as VFP6.EXE, VFP7.EXE, VFP8.EXE, VFP9.EXE,
VFPA.EXE. VFP C++ Compiler currently supports Visual FoxPro 6.0/7.0/8.0/9.0/Advanced/
Advanced (x64) version.
The program compiled with Visual FoxPro 6.0 required VC runtime MSVCRT.DLL,
VFP runtime VFP6R*.DLL (recommended version: 6.0.8961.0) to run.
The program compiled with Visual FoxPro 7.0 required VC runtime MSVCR70.DLL,
VFP runtime VFP7R*.DLL (recommended version: 7.0.0.9465) to run.
The program compiled with Visual FoxPro 8.0 required VC runtime MSVCR70.DLL,
VFP runtime VFP8R*.DLL (recommended version: 8.0.0.3117), GDI+ graphics library
GDIPLUS.DLL to run.
The program compiled with Visual FoxPro 9.0 required VC runtime MSVCR71.DLL,
VFP runtime VFP9R*.DLL (recommended version: 9.0.0.5721 or later), GDI+ graphics
library GDIPLUS.DLL to run.
The program compiled with Visual FoxPro Advanced required VC runtime MSVCR71.DLL,
VFP runtime VFPAR.DLL (recommended version: 10.0.0.0 or later), GDI+ graphics
library GDIPLUS.DLL to run.
The program compiled with Visual FoxPro Advanced (x64) required VC runtime
MSVCR100.DLL, VFP runtime VFPAR.DLL (recommended version: 10.0.0.0 or later), GDI+
graphics library GDIPLUS.DLL to run.
3. C/C++ compiler file
The C/C++ compiler file have installed to the FOXRUN folder, now only specify
the compile mode:
MAKE.BAT: minimizing size of optimizing compile, the default compile mode;
MAKE_O1.BAT: minimizing size of optimizing compile;
MAKE_O2.BAT: maximize speed of optimizing compile;
MAKE_OD.BAT: non-optimizing compile, it is recommended to use debugging.
The program compiled with Visual C++ 6.0 required VC runtime MSVCRT.DLL
to run.
The program compiled with Visual C++ 7.0 required VC runtime MSVCR70.DLL
to run.
The program compiled with Visual C++ 8.0 need to install Microsoft .NET
Framework 2.0 or Microsoft Visual C++ 2005 Redistributable Package or copy
MICROSOFT.VC80.CRT.MANIFEST and MSVCR80.DLL to the program folder to run.
The program compiled with Visual C++ 9.0 need to install Microsoft .NET
Framework 3.5 or Microsoft Visual C++ 2008 Redistributable Package or copy
MICROSOFT.VC90.CRT.MANIFEST and MSVCR90.DLL to the program folder to run.
The program compiled with Visual C++ 10.0 required VC runtime MSVCR100.DLL
to run, only run on Windows XP SP2 or later.
The program compiled with Visual C++ 11.0 required VC runtime MSVCR110.DLL
to run, only run on Windows Vista or later.
The program compiled with Visual C++ 11.0 Update 1 or later required VC runtime
MSVCR110.DLL to run, only run on Windows XP SP2 or later.
The program compiled with Visual C++ 12.0 required VC runtime MSVCR120.DLL
to run, only run on Windows XP SP2 or later.
The program compiled with Visual C++ 14.0 need to install Microsoft Visual C++
2015 Redistributable Package to run, only run on Windows XP SP2 or later.
The program compiled with Visual C++ 14.1 need to install Microsoft Visual C++
2017 Redistributable Package to run, only run on Windows XP SP2 or later.
The program compiled with Visual C++ 14.2 need to install Microsoft Visual C++
2019 Redistributable Package to run, only run on Windows XP SP2 or later.
Data Alignment: 1 byte, 2 bytes, 4 bytes, 8 bytes, 16 bytes.
Recommend select 4 or 8 bytes aligned for 32-bit system.
Recommend select 8 or 16 bytes aligned for 64-bit system.
More C/C++ compile options please refer to the C/C++ compiler help documentation.
4. Compile options
The first three command line parameters must be input with the following order:
The first parameter must be: VFP project file
The second parameter must be: VFP run file
The third parameter must be: C/C++ compiler file
The fourth and other command line parameters for the compile options, we can
enter in any order.
1, /VCLEVEL=n Compile and Encrypt Level
The default compile and encrypt level is 1, maximum is 99.
Usually select compile and encrypt level 1 can encrypt, select high-level
compile and encrypt level then generated executable file encryption strength
Increased, but slightly reduced speed.
As the nested level of VFP DO command is 128 (VFP 9.0 can be set to the
maximum 65000), if we select compile and encrypt level 1, so the nested level
of VFP DO command is 128/3 = 42 level, if we select compile and encrypt level 5,
so the nested level of VFP DO command is 128/3/5 = 8 level, in some large program
may happen "Allowed DO nesting level exceeded" error.
2, /VCPRG=ON|OFF Compile Program Files
The default is ON, which allows Compile Program Files.
Program Files include:
Program file, the file extension is PRG;
Format file, the file extension is FMT;
Screen file, the file extension is SPR;
Menu file, the file extension is MPR;
Query file, the file extension is QPR.
3, /VCSCX=ON|OFF Compile Form Files
The default is ON, which allows Compile Form Files.
Form Files include:
Form file, the file extension is SCX;
Class library file, the file extension is VCX;
Report file, the file extension is FRX;
Label file, the file extension is LBX.
4, /VCSTRUC=ON|OFF Compile Structured Programming Commands
The default is ON, which allows Compile Structured Programming Commands.
Structured Programming Commands include:
DO CASE ... ENDCASE
DO WHILE ... ENDDO
FOR EACH ... ENDFOR
FOR ... ENDFOR
IF ... ENDIF
SCAN ... ENDSCAN
TRY ... ENDTRY
5, /VCOPT=ON|OFF Optimize Code
The default is ON, VFP C++ Compiler compiled and generated optimized code for
the executable file, and run speed improved significantly.
If set to OFF, VFP C++ Compiler does not compiled and generated optimized code
for the executable file.
Usually, the optimization of code (line number) ratio between 60% and 80%.
6, /VCOPT2=ON|OFF Optimize Code Level II
The default is ON, VFP C++ Compiler compiled and generated optimized code level
II for the executable file, and run faster.
If set to OFF, VFP C++ Compiler does not compiled and generated optimized code
level II for the executable file.
7, /VCENCRYPT=ON|OFF Encrypt Executable File
The default is ON, VFP C++ Compiler compiled and encrypted the executable file.
If set to OFF, VFP C++ Compiler only compiled and generated the executable file,
does not encrypt the executable file.
8, /VCPACKEXE=ON|OFF Compress Executable File
The default is OFF, VFP C++ Compiler only compiled and generated the executable file,
does not compress the executable file.
If set to ON, VFP C++ Compiler compiled and compressed the executable file.
Usually, VFP C++ Compiler compiled and generated the encrypted executable file
compression rate between 10% and 30%, the unencrypted executable file compression
rate between 5% and 15%.
9, /VFPLIB=ON|OFF Include VFP Support Library
/VFPLIBLANGUAGE=... VFP Support Library Language (only support Visual FoxPro Advanced)
/VFPLIBVERSION=... VFP Support Library Version (only support Visual FoxPro Advanced)
The default is OFF, VFP C++ Compiler compiled and generated executable file does
not contain the VFP runtime file.
If set to ON, VFP C++ Compiler compiled and generated executable file contain
VFP runtime file and VC runtime file.
For Visual FoxPro Advanced, we can select VFP Support Library Language:
CHS - Simplified Chinese
CHT - Traditional Chinese
CSY - Czech
DEU - German
ENU - English
ESN - Spanish
FRA - French
KOR - Korean
RUS - Russian
For Visual FoxPro Advanced, we can select VFP Support Library Version:
AUTO - The VFP Support Library Version is the same as the VFP Run File Version
10.0 - The VFP Support Library Version is 10.0 Version
10.1 - The VFP Support Library Version is 10.1 Version
10, /VCLIB=ON|OFF Include Visual C++ Library
The default is OFF, VFP C++ Compiler compiled and generated executable file does
not contain the VC runtime file.
If set to ON, VFP C++ Compiler compiled and generated executable file contain
the VC runtime file.
11, /VCPACKDLL=ON|OFF Compress Dynamic Link Library File
The default is OFF, VFP C++ Compiler only compiled and generated the dynamic link
library file, does not compress the dynamic link library file.
If set to ON, VFP C++ Compiler compiled and compressed the dynamic link
library file.
Usually, VFP C++ Compiler compiled and generated dynamic link library file
compression rate between 30% and 50%.
12, /VCPACK=ON|OFF Pack Executable File
The default is OFF, VFP C++ Compiler does not pack executable file.
If set to ON, VFP C++ Compiler packed executable file.
We can use MoleBox or Thinstall pack software to pack dynamic link library
file and other files (for example, VFP support library files) into the generated
executable file.
13, /VCSTEP=ON|OFF Single Step Compile Mode
/VCSTEP_ONERROR=ON|OFF Single Step Compile On Error Code
/VCSTEP_ONESCAPE=ON|OFF Single Step Compile On Escape Code
The default is OFF, VFP C++ Compiler compiled many VFP statements to one C function.
If set to ON, VFP C++ Compiler compiled only one VFP statement to one C function.
14, /DEBUG=ON|OFF Debug Mode
The default is OFF, that is, turn off debug mode.
If the program is compiled to run have problem, we can set the debug
mode to ON, so that VFP C++ Compiler will generate a log file and retain the
temporary files, easy to analyze the reasons for problem.
15, /APPDEBUG=ON|OFF Application Debug Mode
The default is OFF, that is, turn off application debug mode.
If the program is compiled to run have problem, we can set the application
debug mode to ON, so that VFP C++ Compiler will generate a log file when the program
running, easy to analyze the reasons for problem.
16, /APPERROR=ON|OFF Application Error Log File
The default is OFF, that is, turn off application error log file.
If the program is compiled to run have problem, we can set the application
error log file to ON, so that VFP C++ Compiler will generate a error log file when the
program running, easy to analyze the reasons for problem.
17, /SILENT=ON|OFF Silent Mode
The default is OFF, VFP C++ Compiler will display the main form.
If set to ON, VFP C++ Compiler will not display the main form, easy to call
in a batch.
18, /SILENTDISPLAY=ON|OFF Silent Display Mode
The default is OFF, VFP C++ Compiler will display the main form.
If set to ON, VFP C++ Compiler will display the main form and then compile automatically,
easy to call in a batch.
19, /VCINCREMENTAL=ON|OFF Incremental Compile Mode
The default is OFF, VFP C++ Compiler will compile all files in the VFP project file.
If set to ON, VFP C++ Compiler only compile the modified files in the VFP project file.
20, /VCSAVEINCREMENTAL=ON|OFF Save Incremental Compile Files
The default is OFF, VFP C++ Compiler will not retain the temporary files.
If set to ON, VFP C++ Compiler will retain the temporary files for incremental compile.
21, /VCMULTITASK=ON|OFF Multi-Task Compile Mode
The default is OFF, that is, turn off multi-task compile mode.
If set to ON, VFP C++ Compiler will run multi-task to compile the files in the VFP
project file.
22, /VCMULTITASKNUMBER=n Multi-Task Number for Compiling Files
The default multi-task number is 1, maximum is 99.
Usually we can set it to the maximum number of threads for the CPU supported,
for example, for a 2 cores 4 threads CPU, we can set it to 4.
Recommend to set it for multi-core or multi-thread CPU.
23, /VCMULTITASK_COMPILEFORM=ON|OFF Multi-Task Compile the Large Form File
The default is OFF, that is, turn off multi-task compile the large form file.
If set to ON, VFP C++ Compiler will run multi-task to compile the large form file.
24, /VCMULTITASKNUMBER_COMPILEFORM=n Multi-Task Number for Compiling the Large Form File
The default multi-task number is 1, maximum is 99.
Usually we can set it to the maximum number of threads for the CPU supported,
for example, for a 2 cores 4 threads CPU, we can set it to 4.
Recommend to set it for multi-core or multi-thread CPU.
25, /VCMULTITASK_COMPILEDLL=ON|OFF Multi-Task Compile the DLL Source Files
The default is OFF, that is, turn off multi-task compile the DLL source files.
If set to ON, VFP C++ Compiler will run multi-task to compile the DLL source files.
26, /VCMULTITASKNUMBER_COMPILEDLL=n Multi-Task Number for Compiling the DLL Source Files
The default multi-task number is 1, maximum is 99.
Usually we can set it to the maximum number of threads for the CPU supported,
for example, for a 2 cores 4 threads CPU, we can set it to 4.
Recommend to set it for multi-core or multi-thread CPU.
27, /VCDPIAWARENESSMODE=n DPI Awareness Mode (only support Visual FoxPro Advanced)
For Visual FoxPro Advanced, we can select the DPI awareness mode of the compiled
executable files:
-1 - No DPI Awareness Mode
0 - DPI Unaware Mode
1 - DPI System Aware Mode
2 - DPI Per Monitor Aware Mode
3 - DPI Per Monitor V2 Aware Mode
28, /VCREQUESTEXECUTIONLEVEL=n Request Execution Level (only support Visual FoxPro Advanced)
For Visual FoxPro Advanced, we can select the Request Execution Level of the compiled
executable files:
-1 - No Requesting Execution Level
0 - No Additional Permissions
1 - The Highest Permissions Available
2 - Full Administrator Permissions
29, /VCRUNTIMELIBRARYFILETYPE=n File Type of the VC Runtime Library (only support Visual FoxPro
Advanced)
For Visual FoxPro Advanced, we can select the file type of the VC runtime library
of the compiled executable files:
-2 - The VC runtime library file is MSVCR70.DLL
-1 - The VC runtime library file is MSVCR71.DLL
0 - The VC runtime library file is MSVCR100.DLL
1 - The VC runtime library file is MSVCR10064.DLL
2 - The VC runtime library file is MSVCRA64.DLL
We can use the "Save Compile Options" function to write the command line
parameters to a VCF file, such as VCTEST.VCF:
VCTEST.PJX ; VFP project file
VFP9\VFP9.EXE ; VFP run file
FOXRUN7\MAKE.BAT ; C/C++ compiler file
/VCLEVEL=1 ; Compile and Encrypt Level
Then double-click the file we can call VFP C++ Compiler to compile the program.
5. More compile options
1, /VCKEYWORD=ON|OFF Compile Keywords
The default is OFF, VFP C++ Compiler does not compile keywords.
If set to ON, VFP C++ Compiler compiled keywords.
2, /VCNAME=ON|OFF Compile Variable Names
The default is OFF, VFP C++ Compiler does not compile variable names.
If set to ON, VFP C++ Compiler compiled variable names.
3, /VCNAMECATEGORY=ON|OFF Compile Category Variable Names
The default is ON, VFP C++ Compiler compiled category variable names.
If set to OFF, VFP C++ Compiler does not compile category variable names.
4, /VCNAMEMACRO=ON|OFF Compile Macro Variable Names
The default is ON, VFP C++ Compiler compiled macro variable names.
If set to OFF, VFP C++ Compiler does not compile macro variable names.
5, /VCNAMETYPE=n Variable Names Encode Type
The encode charset for compile variable names, include:
0: English Alphabets A-Z
1: English Alphabet O(0x4F) and Digit 0(0x30)
2: Chinese Characters 0xFAA1-0xFAFA
3: Chinese Characters 0xA6AF and 0xAFB0
4: MD5 Code - 16 Characters
5: MD5 Code - 32 Characters
6, /VCNAMEONLYVCV=ON|OFF Only Compile Variable Names in the User Variable
Names File
The default is OFF, VFP C++ Compiler will compile all variable names.
If set to ON, VFP C++ Compiler only compile variable names specified in the
user variable names file (<PROJECT-NAME>.VCV).
7, /VCNAMEEXCLUDEVCD2=ON|OFF Does Not Compile Variable Names in String Delimiters
/VCNAMEEXCLUDEVCD3=ON|OFF Does Not Compile Field Names or Property Names
/VCNAMEEXCLUDEVCW=ON|OFF Does Not Compile Variable Names Specified in
the User Reserved Words File
The default is OFF, VFP C++ Compiler will compile all variable names.
If set to ON, VFP C++ Compiler does not compile variable names in string
delimiters, field names or property names, variable names specified in the user
reserved words file (<PROJECT-NAME>.VCW).
8, /VCNAMEMULTIPROJ=ON|OFF Compile Variable Names for Multiple Projects
The default is OFF, VFP C++ Compiler compile variable names for each project.
If set to ON, VFP C++ Compiler compiled variable names for multiple projects.
9, /VCNAMESCANPROJDIR=ON|OFF Scan Files in Project Folder and its Subfolders
The default is ON, VFP C++ Compiler scanned files in project folder and its
subfolders. If the variable name same with the file name in the project folder
and its subfolders, it will not be compiled to internal name.
If set to OFF, VFP C++ Compiler does not scan files in project folder and its
subfolders.
10, /VCNAMESCANDIR=ON|OFF Scan Folders
/VCNAMESCANDIRLIST=... Scan Folders List
The default is OFF, VFP C++ Compiler does not scan other folders.
If set to ON, VFP C++ Compiler also scan the folders in the scan folders list.
11, /VCNAMEONLYTEXTMERGEDELI=ON|OFF For Text Merge Statements, Only Compile
Variable Names in the Text Merge Delimiters
The default is OFF, for text merge statements (include \, \\, TEXT ... ENDTEXT
statements), VFP C++ Compiler compiled all variable names in the statements.
If set to ON, for text merge statements (include \, \\, TEXT ... ENDTEXT
statements), VFP C++ Compiler only compiled variable names in the text merge delimiters.
12, /VCSCXINIT=ON|OFF Convert Form's Properties into Procedure Init
/VCFASTSCXINIT=ON|OFF Fast Convert Form's Properties into Procedure Init
/VCSCXINITMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not convert form's properties.
If set to ON, VFP C++ Compiler converted form's properties into procedure init.
If set Fast Convert to ON, VFP C++ Compiler only convert the VFP base class object's
properties into procedure init,
It is valid for the counter in the modulus list only.
13, /VCSCXINITFOXRUNOFF=ON|OFF Does Not Compile Form's Procedure Init
/VCSCXINITFOXRUNOFFMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler compiled form's procedure init.
If set to ON, VFP C++ Compiler insert =[FOXURN OFF] into the form's procedure init,
and does not compile form's procedure init.
It is valid for the counter in the modulus list only.
14, /VCFRXINIT=ON|OFF Convert Report's Expressions into Procedure Init
/VCFASTFRXINIT=ON|OFF Fast Convert Report's Expressions into Procedure Init
/VCFRXINITMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not convert report's expressions.
If set to ON, VFP C++ Compiler converted report's expressions into procedure init.
If set Fast Convert to ON, VFP C++ Compiler only convert the TextBox control's
expressions into procedure init, it does not convert the Label control's expressions
into procedure init,
It is valid for the counter in the modulus list only.
15, /VCFRXINITFOXRUNOFF=ON|OFF Does Not Compile Report's Procedure Init
/VCFRXINITFOXRUNOFFMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler compiled report's procedure init.
If set to ON, VFP C++ Compiler insert =[FOXURN OFF] into the report's procedure init,
and does not compile report's procedure init.
It is valid for the counter in the modulus list only.
16, /VCSCX_RESERVEDPROPERTIES_GRID_HEIGHT=ON|OFF Reserved Properties for Grid.Height
/VCSCX_RESERVEDPROPERTIES_TEXTBOX_CONTROLSOURCE=ON|OFF Reserved Properties for
TextBox.ControlSource
/VCSCX_RESERVEDPROPERTIES_OTHERS=ON|OFF Reserved Other Properties
/VCSCX_RESERVEDPROPERTIES_OTHERSLIST= Reserved Other Properties List
The default is OFF, VFP C++ Compiler does not reserved properties.
If set to ON, VFP C++ Compiler reserved properties.
To reserved someone property, that is does not convert the property into procedure
init.
17, /VCSCX_CLEANDATA_COMMENT_WHEN_BLANK=ON|OFF Clean Data for Object's Comment When
Blank (Comment = "")
/VCSCX_CLEANDATA_OLECONTROL_COMMENT=ON|OFF Clean Data for OLEControl.Comment
/VCSCX_CLEANDATA_CLASS_INFO=ON|OFF Clean Data for Class Info
The default is OFF, VFP C++ Compiler does not clean data.
If set to ON, VFP C++ Compiler clean data.
18, /VCFRX_CLEANDATA_SHOW_POSITION=ON|OFF Clean Data for Show Position
/VCFRX_CLEANDATA_PRINTER_DRIVER_INFO=ON|OFF Clean Data for Printer Driver Info
/VCFRX_CLEANDATA_COMMENT_WHEN_BLANK=ON|OFF Clean Data for Object's Comment When
Blank (Comment==" ")
/VCFRX_DELETEDATA_COMMENT=ON|OFF Delete Data for Comment Object (Objtype=0)
/VCFRX_DELETEDATA_WHEN_PRINTWHENISFALSE=ON|OFF Delete Data When Print When is
Flase (Supexpr==".F.")
/VCFRX_AUTORELEASEVARIABLES=ON|OFF Automatic Release Variables Defined in
Report's Procedure Init
The default is OFF, VFP C++ Compiler does not clean or delete data.
If set to ON, VFP C++ Compiler clean or delete data.
19, /VCTOLARGEPROC=ON|OFF Compile to Large Procedure Files Format (only used for VFP 9.0)
The default is OFF, VFP C++ Compiler does not compile to large procedure files format.
If set to ON, VFP C++ Compiler compile to large procedure files format and automatically
fix the large program files BUG.
About the large procedure files format, please refer to:
baiyujia website: www.baiyujia.com/vfpdocuments/f_vhfox.asp
20, /VCNOTDISPLAY_LARGEPROC=ON|OFF Does Not Display Large Program Files in the
Project (only used for VFP 9.0)
The default is OFF, VFP C++ Compiler displays large program files in the project.
If set to ON, VFP C++ Compiler does not display large program files in the project
(if the large program files BUG has been fixed).
About the large program files BUG, please refer to:
baiyujia website: www.baiyujia.com/vfpdocuments/f_vfp9fix2.asp
21, /VCNOTDISPLAY_RELATIONALEXPR=ON|OFF Does Not Display Invalid RelationalExpr Expressions
The default is OFF, VFP C++ Compiler displays invalid relationalexpr expressions.
If set to ON, VFP C++ Compiler does not display invalid relationalexpr expressions
(if the invalid relationalexpr expressions BUG has been fixed).
About the invalid relationalexpr expressions BUG, please refer to:
baiyujia website: www.baiyujia.com/vfpdocuments/f_vfp9fix4.asp
22, /VCNOTDISPLAY_COMPILEERROR=ON|OFF Does Not Display Compilation Error Messages
The default is OFF, VFP C++ Compiler displays compilation error messages.
If set to ON, VFP C++ Compiler does not display compilation error messages.
23, /VCFILESEARCHPATH=... File Search Path
Specified the search path for class library files and header files.
24, /VCPLUGIN_MYPROTECT=ON|OFF Run MyProtect Plugin
/VCPLUGIN_MYPROTECTFILE=... MyProtect Plugin File
The default is OFF, VFP C++ Compiler does not run MyProtect plugin.
If set to ON, VFP C++ Compiler run the specified MyProtect plugin before generate the
executable file.
25, /VCEXPANDEXPEVALUATE=ON|OFF Expand Expression With EVALUATE() Function
/VCEXPANDEXPEVALUATELEVEL=n Expand Times
/VCEXPANDEXPEVALUATEMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not expand expression with EVALUATE() function.
If set to ON, VFP C++ Compiler expanded expression with EVALUATE() function.
To expand expression with EVALUATE() function, for example,
x1="ABC"
will be expanded to:
x1=(EVALUATE('"ABC"'))
The default expand times is 1, maximum is 99.
It is valid for the counter in the modulus list only.
26, /VCEXPANDEXPCHR=ON|OFF Expand Expression With CHR() Function
/VCEXPANDEXPCHRMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not expand expression with CHR() function.
If set to ON, VFP C++ Compiler expanded expression with CHR() function.
To expand expression with CHR() function, for example,
x1="ABC"
will be expanded to:
x1=(CHR(65)+CHR(66)+CHR(67))
It is valid for the counter in the modulus list only.
27, /VCEXPANDEXPCHR_L=m Maximum Character Number Expanded on the Left
/VCEXPANDEXPCHR_R=n Maximum Character Number Expanded on the Right
Use of 0-m characters on the left and 0-n characters on the right to expand expression.
28, /VCEXPANDEXP=ON|OFF Expand Expression With IIF() Function
/VCEXPANDEXPMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not expand expression with IIF() function.
If set to ON, VFP C++ Compiler expanded expression with IIF() function.
To expand expression with IIF() function, for example,
x1=x2
will be expanded to:
x1=IIF(.T.,x2,123)
or
x1=IIF(.F.,123,x2)
It is valid for the counter in the modulus list only.
29, /VCEXPANDEXP_IIF_T=m Maximum Number of IIF(.T.
/VCEXPANDEXP_IIF_F=n Maximum Number of IIF(.F.
Use of 0-m IIF(.T. and 0-n IIF(.F. to expand expression.
30, /VCEXPANDEXPSTRUC_IIF_T=m Maximum Number of IIF(.T. in Structured Programming Commands
/VCEXPANDEXPSTRUC_IIF_F=n Maximum Number of IIF(.F. in Structured Programming Commands
Use of 0-m IIF(.T. and 0-n IIF(.F. to expand expression in structured programming commands.
31, /VCEXPANDEXPSCXINIT_IIF_T=m Maximum Number of IIF(.T. in Form's Procedure Init
/VCEXPANDEXPSCXINIT_IIF_F=n Maximum Number of IIF(.F. in Form's Procedure Init
Use of 0-m IIF(.T. and 0-n IIF(.F. to expand expression in form's procedure init.
32, /VCEXPANDEXPFRXINIT_IIF_T=m Maximum Number of IIF(.T. in Report's Procedure Init
/VCEXPANDEXPFRXINIT_IIF_F=n Maximum Number of IIF(.F. in Report's Procedure Init
Use of 0-m IIF(.T. and 0-n IIF(.F. to expand expression in report's procedure init.
33, /VCDECOMPCOND=ON|OFF Decompose Complex Conditional Statement
The default is OFF, VFP C++ Compiler does not decompose complex conditional statement.
If set to ON, VFP C++ Compiler decompose complex conditional statement.
To decompose complex conditional statement, for example,
IF x1 OR x2
?"Y"
ELSE
?"N"
ENDIF
will be decomposed to:
IF x1
?"Y"
ELSE
IF x2
?"Y"
ELSE
?"N"
ENDIF
ENDIF
Usually, the program's complexities will increase as exponential when
decompose complex conditional statement.
--------------------------------------------------------------------------------------------------------------------
| Structured Programming Commands | Maximum of Nested Level for VFP | Maximum of Nested Level for VFP C++ Compiler |
--------------------------------------------------------------------------------------------------------------------
| IF ... ENDIF | 63 | 143 |
--------------------------------------------------------------------------------------------------------------------
| DO CASE ... ENDCASE | 31 | 143 |
--------------------------------------------------------------------------------------------------------------------
| DO WHILE ... ENDDO | 63 | 91 |
--------------------------------------------------------------------------------------------------------------------
| FOR ... ENDFOR | 63 | 91 |
--------------------------------------------------------------------------------------------------------------------
| SCAN ... ENDSCAN | 63 | 91 |
--------------------------------------------------------------------------------------------------------------------
| TRY ... ENDTRY | 63 | 91 |
--------------------------------------------------------------------------------------------------------------------
As the maximum of nested level for VFP structured programming commands is 63,
some large program may happen "Structure nesting is too deep" error when decompose
complex conditional statement.
34, /VCFASTDECOMPIF=ON|OFF Fast Decompose IF Statement
/VCFASTDECOMPIFCONDNUMBER=n Condition Number
/VCFASTDECOMPIFRECURSELEVEL=n Recurse Level
/VCFASTDECOMPIFCODELINENUMBER=n Code Line Number
/VCFASTDECOMPIFCODELENGTH=n Code Length
/VCFASTDECOMPIFMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not fast decompose IF statement.
If set to ON, VFP C++ Compiler fast decompose IF statement.
To fast decompose IF statement, for example,
IF x1 OR x2 OR x3 OR x4 OR x5
Use another decompose methods, decompose faster and the generated code smaller.
The default condition number is 9, maximum is 99.
The default recurse level is 9, maximum is 99.
The default code line number is 999, maximum is 9999.
The default code length is 99999, maximum is 999999.
To fast decompose IF statement when the condition number is great than the
specified condition number OR the recurse level is great than the specified recurse
level OR the code line number is great than the specified code line number OR the
code length is great than the specified code length AND the counter in the modulus
list only.
If the condition is too complex, VFP C++ Compiler fast decomposed IF statement
automatically.
35, /VCFASTDECOMPDOCASE=ON|OFF Fast Decompose DO CASE Statement
/VCFASTDECOMPDOCASECASENUMBER=n CASE Number
/VCFASTDECOMPDOCASECONDNUMBER=n Condition Number
/VCFASTDECOMPDOCASERECURSELEVEL=n Recurse Level
/VCFASTDECOMPDOCASECODELINENUMBER=n Code Line Number
/VCFASTDECOMPDOCASECODELENGTH=n Code Length
/VCFASTDECOMPDOCASEMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not fast decompose DO CASE statement.
If set to ON, VFP C++ Compiler fast decompose DO CASE statement.
To fast decompose DO CASE statement, for example,
CASE x1 AND x2 AND x3 AND x4 AND x5
Use another decompose methods, decompose faster and the generated code smaller.
The default CASE number is 9, maximum is 99.
The default condition number is 9, maximum is 99.
The default recurse level is 9, maximum is 99.
The default code line number is 999, maximum is 9999.
The default code length is 99999, maximum is 999999.
To fast decompose DO CASE statement when the CASE number is great than the
specified CASE number OR the condition number is great than the specified condition
number OR the recurse level is great than the specified recurse level OR the code
line number is great than the specified code line number OR the code length is great
than the specified code length AND the counter in the modulus list only.
If the condition is too complex, VFP C++ Compiler fast decomposed DO CASE statement
automatically.
36, /VCEXPANDINLINE=ON|OFF Expand Inline Function
/VCEXPANDINLINELEVEL=n Expand Times
/VCEXPANDINLINEMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not expand inline function.
If set to ON, VFP C++ Compiler expand inline function.
The default expand times is 1, maximum is 99.
It is valid for the counter in the modulus list only.
37, /VCANTIDISASM=ON|OFF Anti-Disassembly (does not support 64-bit program)
/VCANTIDISASMMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not generate anti-disassembly code.
If set to ON, VFP C++ Compiler will generate anti-disassembly code.
It is valid for the counter in the modulus list only.
38, /VCANTIDISASM=ON|OFF Anti-Decompile (only support Visual FoxPro Advanced)
The default is OFF, VFP C++ Compiler does not generate anti-decompile code.
If set to ON, VFP C++ Compiler will generate anti-decompile code.
39, /VCMOVE=ON|OFF Move Statement
/VCMOVELEVEL=n Move Times
/VCMOVEMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not move statement.
If set to ON, VFP C++ Compiler move statement.
To move statement, for example,
statement
will be moved to:
=[GOTO FOXRUN_GOTO_LABEL_XXX_START]
=[FOXRUN_GOTO_LABEL_XXX_END:]
...
=[FOXRUN_GOTO_LABEL_XXX_START:]
statement
=[GOTO FOXRUN_GOTO_LABEL_XXX_END]
The default move times is 1, maximum is 99.
It is valid for the counter in the modulus list only.
40, /VCMOVEGOTO=ON|OFF Move GOTO Statement
/VCMOVEGOTOMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not move GOTO statement.
If set to ON, VFP C++ Compiler move GOTO statement.
It is valid for the counter in the modulus list only.
41, /VCFASTMOVE=ON|OFF Fast Move Statement
/VCFASTMOVELEVEL=n Fast Move Times
/VCFASTMOVEMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not fast move statement.
If set to ON, VFP C++ Compiler fast move statement.
The default fast move times is 1, maximum is 99.
It is valid for the counter in the modulus list only.
42, /VCNOTMOVE=ON|OFF Does Not Move Statement
/VCNOTMOVEMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not move statement.
If set to ON, VFP C++ Compiler move statement.
It is valid for the counter in the modulus list only.
43, /VCREENCRYPT=ON|OFF Reencrypt Code When Run
/VCREENCRYPTMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, that is not encrypt code after the code have run.
If set to ON, the code more secure, but run slower.
It is valid for the counter in the modulus list only.
44, /VCFASTENCRYPT=ON|OFF Fast Encrypt Code
/VCFASTENCRYPTMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not fast encrypt code.
If set to ON, VFP C++ Compiler encrypted some bytes of the code, encrypt and decrypt
faster, and run faster.
It is valid for the counter in the modulus list only.
45, /VCNOTENCRYPT=ON|OFF Does Not Encrypt Code
/VCNOTENCRYPTMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler encrypted code.
If set to ON, VFP C++ Compiler generated code smaller and compile faster, does not
decrypt code and run faster.
It is valid for the counter in the modulus list only.
46, /VCENCRYPTPCODE=ON|OFF Encrypt P-Code
/VCENCRYPTPCODEMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not encrypt P-Code.
If set to ON, VFP C++ Compiler encrypted P-Code.
It is valid for the counter in the modulus list only.
47, /VCFASTENCRYPTPCODE=ON|OFF Fast Encrypt P-Code
/VCFASTENCRYPTPCODEMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler does not fast encrypt P-Code.
If set to ON, VFP C++ Compiler Fast Encrypted P-Code, encrypt and decrypt faster,
and run faster.
It is valid for the counter in the modulus list only.
48, /VCNOTENCRYPTPCODE=ON|OFF Does Not Encrypt P-Code
/VCNOTENCRYPTPCODEMODLIST=0,1,2,3,4,5,6,7 Modulus List
The default is OFF, VFP C++ Compiler encrypted P-Code.
If set to ON, VFP C++ Compiler does not encrypt and decrypt P-Code and run faster.
It is valid for the counter in the modulus list only.
49, /VCINSERTINITCODE=ON|OFF Insert Init Code
The default is OFF, VFP C++ Compiler will not insert init code.
If set to ON, VFP C++ Compiler will insert init code specified in the
user init code file (.VCI).
50, /VCADDPROC=ON|OFF Load Additional Procedure Files
/VCADDPROCLIST=... Additional Procedure Files List
The default is OFF, VFP C++ Compiler does not load additional procedure files.
If set to ON, VFP C++ Compiler also load the procedure files in the additional
procedure files list.
51, /VCADDFLL=ON|OFF Load Additional VFP API Library Files
/VCADDFLLLIST=... Additional VFP API Library Files List
The default is OFF, VFP C++ Compiler does not load additional VFP API library files.
If set to ON, VFP C++ Compiler also load the library files in the additional VFP API
library files list.
52, /VCNOTCOMPILEFILELIST=... Does Not Compile Files List
Specified the does not compile files list.
53, /VCNEWNAMEMODE=n Create the Name Table Index Mode (only support Visual FoxPro Advanced)
For Visual FoxPro Advanced, we can select the Create the Name Table Index Mode:
0 - Old Mode to Create the Name Table Index
1 - New Mode to Create the Name Table Index
2 - Auto Mode to Create the Name Table Index
To compile and generate the best compatibility code, please refer to the
following settings:
/VCKEYWORD=OFF ; does not Compile Keywords
/VCNAME=OFF ; does not Compile Variable Names
/VCSCXINIT=OFF ; does not Convert Form's Properties into Procedure Init
/VCFRXINIT=OFF ; does not Convert Report's Expressions into Procedure Init
/VCEXPANDEXPEVALUATE=OFF ; does not Expand Expression With EVALUATE() Function
/VCEXPANDEXPCHR=OFF ; does not Expand Expression With CHR() Function
/VCEXPANDEXP=OFF ; does not Expand Expression With IIF() Function
/VCDECOMPCOND=OFF ; does not Decompose Complex Conditional Statement
/VCEXPANDINLINE=OFF ; does not Expand Inline Function
/VCANTIDISASM=OFF ; does not Anti-Disassembly
/VCMOVE=OFF ; does not Move Statement
To compile and generate the smallest file size code, please refer to the following
settings:
/VCENCRYPT=OFF ; does not Encrypt Executable File
/VCPACKEXE=ON ; Compress Executable File
/VFPLIB=OFF ; does not Include VFP Support Library
/VCLIB=OFF ; does not Include Visual C++ Library
/VCPACKDLL=ON ; Compress Dynamic Link Library File
To compile and generate the run fastest code, please refer to the following
settings:
/VCKEYWORD=OFF ; does not Compile Keywords
/VCSCXINIT=OFF ; does not Convert Form's Properties into Procedure Init
/VCFRXINIT=OFF ; does not Convert Report's Expressions into Procedure Init
/VCEXPANDEXPEVALUATE=OFF ; does not Expand Expression With EVALUATE() Function
/VCEXPANDEXPCHR=OFF ; does not Expand Expression With CHR() Function
/VCEXPANDEXP=OFF ; does not Expand Expression With IIF() Function
To compile and generate the highest encryption strength code, please refer to
the following settings:
/VCLEVEL=3 ; Compile and Encrypt Level
/VCENCRYPT=ON ; Encrypt Executable File
/VCPACKEXE=ON ; Compress Executable File
/VCPACKDLL=ON ; Compress Dynamic Link Library File
/VCKEYWORD=ON ; Compile Keywords
/VCNAME=ON ; Compile Variable Names
/VCSCXINIT=ON ; Convert Form's Properties into Procedure Init
/VCFRXINIT=ON ; Convert Report's Expressions into Procedure Init
/VCEXPANDEXPEVALUATE=ON ; Expand Expression With EVALUATE() Function
/VCEXPANDEXPEVALUATELEVEL=3 ; Expand Times
/VCEXPANDEXPCHR=ON ; Expand Expression With CHR() Function
/VCEXPANDEXPCHR_L=20 ; Maximum Character Number Expanded on the Left
/VCEXPANDEXPCHR_R=30 ; Maximum Character Number Expanded on the Right
/VCEXPANDEXP=ON ; Expand Expression With IIF() Function
/VCEXPANDEXP_IIF_T=20 ; Maximum Number of IIF(.T.
/VCEXPANDEXP_IIF_F=30 ; Maximum Number of IIF(.F.
/VCDECOMPCOND=ON ; Decompose Complex Conditional Statement
/VCEXPANDINLINE=ON ; Expand Inline Function
/VCEXPANDINLINELEVEL=3 ; Expand Times
/VCANTIDISASM=ON ; Anti-Disassembly
/VCMOVE=ON ; Move Statement
/VCMOVELEVEL=3 ; Move Times
/VCMOVEGOTO=ON ; Move GOTO Statement
/VCREENCRYPT=ON ; Reencrypt Code When Run
/VCENCRYPTPCODE=ON ; Encrypt P-Code
/-------------------------\
| Chapter 6 EXTENDED CODE |
\-------------------------/
1. CODE PRAGMAS
Usually, C/C++ code can insert some optimize pragmas to control the
compiler options, such as #pragma optimize.
Similarly, we can also insert the following pragmas to control the
VFP C++ Compiler option:
=[FOXRUN ON]
=[FOXRUN OFF]
VFP C++ Compiler scan =[FOXRUN OFF], then the code is not compiled until
scan =[FOXRUN ON].
We can also insert the following pragmas to control the single step
compile option:
=[FOXSTEP ON]
=[FOXSTEP OFF]
VFP C++ Compiler scan =[FOXSTEP OFF], then the code is not single step
compiled until scan =[FOXSTEP ON].
2. LABEL AND GOTO STATEMENT
Now, we can use LABEL and GOTO statement, such as:
=[LABEL1:]
=[GOTO LABEL1]
Note for use GOTO statement:
GOTO statement can only jump in the function body, it can not jump to
another function body.
3. INLINE FUNCTION
We can use the following format to declare inline function:
* inline [PROCEDURE | FUNCTION] pabc
Note for use inline function:
If we use #DEFINE preprocessor statement to define a constant in the
inline function, we need use #UNDEF preprocessor statement to undefine the
constant in the inline function, otherwise they will happen "Constant is
already created with #DEFINE" error.
Usually, only expand inline function in the following commands:
?
@
\ | \\
=
IF
CASE
DO WHILE
RETURN
STORE
WAIT
4. INLINE C STATEMENT
Now, we can use inline c statement, such as:
=[__C MessageBoxA(0,mytext,mytitle,0);]
5. INLINE ASSEMBLY STATEMENT (does not support 64-bit program)
Now, we can use inline assembly statement, such as:
=[__ASM CALL MessageBoxA]
6. INCLUDE C FILE
Now, we can include c file, such as:
=[INCLUDE VCTEST.C]
7. INCLUDE ASSEMBLY FILE (does not support 64-bit program)
Now, we can include assembly file, such as:
=[INCLUDEASM VCTEST.ASM]
8. LOCAL COMPILE OPTION
We can use the following format to set the local compile option:
=[VCOPTION compile option]
We can use the following format to restore the global compile option:
=[VCOPTION $(DEFAULT)]
/------------------------\
| Chapter 7 SPECIAL CODE |
\------------------------/
1. Code changes:
SET LIBRARY TO FileName
Will be automatically changed to:
SET LIBRARY TO FileName ADDITIVE
SET DATASESSION TO nDataSessionNumber
Will be automatically changed to:
SET DATASESSION TO nDataSessionNumber
SET TALK OFF
2. The following command to compile, there may be have problem:
RETRY
RETURN TO
Please refer to the sample programs VCTEST_RETRY\VCTEST.PRG,
VCTEST_RETURN_TO\VCTEST.PRG.
3. The error handling procedure:
ON ERROR DO perrorun WITH ERROR(), MESS(), MESS(1), SYS(16), LINENO()
Please refer to the sample programs VCTEST_ON_ERROR\PERRORUN.PRG.
4. Field name conflict:
Please refer to the sample programs VCTEST_FIELD\VCTEST.PRG.
5. Recursive calls:
Please refer to the sample programs VCTEST_GETNEXTID\F_GETNEXTID.PRG.
6. API library merger:
Please refer to the sample programs VCTEST_ADD\FOXRUN.H, VCTEST_ADD\VCTEST.PRG.
7. Version information:
Please refer to the sample file version information VCTEST\VERSIONINFO.TXT.
8. The following command must be explicitly run, can not run as macro replacement:
RETURN
RETRY
SUSPEND
RESUME
CANCEL
QUIT
READ EVENTS
CLEAR EVENTS
DOEVENTS
ERROR
ON ERROR
ON SHUTDOWN
SET LIBRARY
RELEASE LIBRARY
SET PROCEDURE
RELEASE PROCEDURE
CLEAR ALL
CLEAR PROGRAM
CLEAR MEMORY
RELEASE ALL
CLOSE ALL
CLOSE PROCEDURE
PRIVATE ALL
To run as macro replacement, such as:
x1="RETURN"
&x1
9. The following command must be explicitly run, can not run as macro replacement,
and runtime have been neglected:
APPEND PROCEDURES
ASSERT
BUILD APP
BUILD EXE
BUILD PROJECT
CREATE FORM
CREATE MENU
CREATE QUERY
CREATE SCREEN
CREATE VIEW
DEBUGOUT
MODIFY CONNECTION
MODIFY DATABASE
MODIFY FORM
MODIFY MENU
MODIFY PROCEDURE
MODIFY PROJECT
MODIFY QUERY
MODIFY SCREEN
MODIFY VIEW
SET DEBUG
SET DEVELOPMENT
SET DOHISTORY
SET ECHO
SET LIBRARY TO
SET STEP
/----------------------------\
| Chapter 8 COMPILER COMPARE |
\----------------------------/
---------------------------------------------------------------------------------------------------------------
| Compare Item | Masm, C/C++, Delphi Compiler | VFP C++ Compiler |
---------------------------------------------------------------------------------------------------------------
| Variable names, function names | Compile to address | Compile to NTI number |
---------------------------------------------------------------------------------------------------------------
| Structured programming commands | Compile to JA/JB/JMP | Compile to JA/JB/JMP |
---------------------------------------------------------------------------------------------------------------
| Executable file(s) | Compiled and generated EXE file | Compiled and generated EXE and DLL file |
---------------------------------------------------------------------------------------------------------------
| Executable file(s) compression | Can compress the EXE file | Can compress the EXE and DLL file |
---------------------------------------------------------------------------------------------------------------
| VC runtime files | MSVCR*.DLL | MSVCR*.DLL, VFPCORE.DLL |
---------------------------------------------------------------------------------------------------------------
| API function library files | KERNEL32.DLL, USER32.DLL, etc. | VFP?R.DLL, VFP?R???.DLL |
---------------------------------------------------------------------------------------------------------------
/------------------\
| Chapter 9 OTHERS |
\------------------/
VFP C++ Compiler compiled and generated the executable file to be decompile
impossible. When VFP C++ Compiler became a popular software, the VFP decompile
software such as ReFox, UnFoxAll, VFPDecoder, FoxTools will gradually
Disappear. Of course, the compile and decompile, encryption and decryption
is always the relationship between the spear and shield, such as Soft-ICE,
OllyDbg, W32Dasm are still the powerful tool for Cracker.
VFP C++ Compiler compiled and generated the executable file is a GREEN-SOFTWARE,
it can publish without include VFP runtime files.
Welcome to our website to download the latest version of VFP C++ Compiler:
http://www.baiyujia.com.
For about VFP C++ Compiler questions or suggestions, please send me an email at ccb2000@163.com.
|