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[NEW.....] VFP 9.0 FIX - SYS(9027) RETURNS THE PATH OF A SPECIAL FOLDER
January 2024
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CCB
1. THE SYS(9027) FUNCTION:
SYS(9027) - Returns the path of a special folder
Returns the path of a special folder.
SYS(9027 [, nValue])
Parameters
nValue
The nValue parameter is a CSIDL constant.
The range for nValue is 0 to 255. The default value is 0.
Omitting nValue returns an empty string.
Return Value
Character
Remarks
The CSIDL constants are defined in shlobj.h:
#define CSIDL_DESKTOP 0x0000 // <desktop>
#define CSIDL_INTERNET 0x0001 // Internet Explorer (icon on desktop)
#define CSIDL_PROGRAMS 0x0002 // Start Menu\Programs
#define CSIDL_CONTROLS 0x0003 // My Computer\Control Panel
#define CSIDL_PRINTERS 0x0004 // My Computer\Printers
#define CSIDL_PERSONAL 0x0005 // My Documents
#define CSIDL_FAVORITES 0x0006 // <user name>\Favorites
#define CSIDL_STARTUP 0x0007 // Start Menu\Programs\Startup
#define CSIDL_RECENT 0x0008 // <user name>\Recent
#define CSIDL_SENDTO 0x0009 // <user name>\SendTo
#define CSIDL_BITBUCKET 0x000a // <desktop>\Recycle Bin
#define CSIDL_STARTMENU 0x000b // <user name>\Start Menu
#define CSIDL_MYDOCUMENTS CSIDL_PERSONAL // Personal was just a silly name for My Documents
#define CSIDL_MYMUSIC 0x000d // "My Music" folder
#define CSIDL_MYVIDEO 0x000e // "My Videos" folder
#define CSIDL_DESKTOPDIRECTORY 0x0010 // <user name>\Desktop
#define CSIDL_DRIVES 0x0011 // My Computer
#define CSIDL_NETWORK 0x0012 // Network Neighborhood (My Network Places)
#define CSIDL_NETHOOD 0x0013 // <user name>\nethood
#define CSIDL_FONTS 0x0014 // windows\fonts
#define CSIDL_TEMPLATES 0x0015
#define CSIDL_COMMON_STARTMENU 0x0016 // All Users\Start Menu
#define CSIDL_COMMON_PROGRAMS 0X0017 // All Users\Start Menu\Programs
#define CSIDL_COMMON_STARTUP 0x0018 // All Users\Startup
#define CSIDL_COMMON_DESKTOPDIRECTORY 0x0019 // All Users\Desktop
#define CSIDL_APPDATA 0x001a // <user name>\Application Data
#define CSIDL_PRINTHOOD 0x001b // <user name>\PrintHood
#define CSIDL_LOCAL_APPDATA 0x001c // <user name>\Local Settings\Applicaiton Data (non roaming)
#define CSIDL_ALTSTARTUP 0x001d // non localized startup
#define CSIDL_COMMON_ALTSTARTUP 0x001e // non localized common startup
#define CSIDL_COMMON_FAVORITES 0x001f
#define CSIDL_INTERNET_CACHE 0x0020
#define CSIDL_COOKIES 0x0021
#define CSIDL_HISTORY 0x0022
#define CSIDL_COMMON_APPDATA 0x0023 // All Users\Application Data
#define CSIDL_WINDOWS 0x0024 // GetWindowsDirectory()
#define CSIDL_SYSTEM 0x0025 // GetSystemDirectory()
#define CSIDL_PROGRAM_FILES 0x0026 // C:\Program Files
#define CSIDL_MYPICTURES 0x0027 // C:\Program Files\My Pictures
#define CSIDL_PROFILE 0x0028 // USERPROFILE
#define CSIDL_SYSTEMX86 0x0029 // x86 system directory on RISC
#define CSIDL_PROGRAM_FILESX86 0x002a // x86 C:\Program Files on RISC
#define CSIDL_PROGRAM_FILES_COMMON 0x002b // C:\Program Files\Common
#define CSIDL_PROGRAM_FILES_COMMONX86 0x002c // x86 Program Files\Common on RISC
#define CSIDL_COMMON_TEMPLATES 0x002d // All Users\Templates
#define CSIDL_COMMON_DOCUMENTS 0x002e // All Users\Documents
#define CSIDL_COMMON_ADMINTOOLS 0x002f // All Users\Start Menu\Programs\Administrative Tools
#define CSIDL_ADMINTOOLS 0x0030 // <user name>\Start Menu\Programs\Administrative Tools
#define CSIDL_CONNECTIONS 0x0031 // Network and Dial-up Connections
#define CSIDL_COMMON_MUSIC 0x0035 // All Users\My Music
#define CSIDL_COMMON_PICTURES 0x0036 // All Users\My Pictures
#define CSIDL_COMMON_VIDEO 0x0037 // All Users\My Video
#define CSIDL_RESOURCES 0x0038 // Resource Direcotry
#define CSIDL_RESOURCES_LOCALIZED 0x0039 // Localized Resource Direcotry
#define CSIDL_COMMON_OEM_LINKS 0x003a // Links to All Users OEM specific apps
#define CSIDL_CDBURN_AREA 0x003b // USERPROFILE\Local Settings\Application Data\Microsoft\CD Burning
#define CSIDL_COMPUTERSNEARME 0x003d // Computers Near Me (computered from Workgroup membership)
2. CAUSE:
There are some BUGs in the following code.
3. RESOLUTION:
We can write some code to fix the BUG.
Fun529fca :: ; proc near
push ebp ;0x00529fca : 55
mov ebp , esp ;0x00529fcb : 8bec
pushd 0FFFFFFFFh ;0x00529fcd : 6aff
pushd offset Data922268 ;0x00529fcf : 6868229200
pushd offset Label9160f9 ;0x00529fd4 : 68f9609100
mov eax , dword ptr fs:[00h] ;0x00529fd9 : 64a100000000
push eax ;0x00529fdf : 50
mov dword ptr fs:[00h] , esp ;0x00529fe0 : 64892500000000
push ecx ;0x00529fe7 : 51
push ecx ;0x00529fe8 : 51
mov eax , 02FBCh ;0x00529fe9 : b8bc2f0000
call Fun42c118 ;0x00529fee : e82521f0ff
mov eax , dword ptr [ Data937090 ] ;0x00529ff3 : a190709300
mov dword ptr [ ebp - 28 ] , eax ;0x00529ff8 : 8945e4
push ebx ;0x00529ffb : 53
push esi ;0x00529ffc : 56
push edi ;0x00529ffd : 57
mov dword ptr [ ebp - 24 ] , esp ;0x00529ffe : 8965e8
xor edi , edi ;0x0052a001 : 33ff
mov dword ptr [ ebp + 0FFFFD114h ] , edi ;0x0052a003 : 89bd14d1ffff
push edi ;0x0052a009 : 57
pushd 02710h ;0x0052a00a : 6810270000
push edi ;0x0052a00f : 57
mov ebx , dword ptr [ ebp + 8 ] ;0x0052a010 : 8b5d08
mov eax , ebx ;0x0052a013 : 8bc3
call Fun529bc5 ;0x0052a015 : e8abfbffff
mov dword ptr [ ebp + 0FFFFD0E4h ] , eax ;0x0052a01a : 8985e4d0ffff
mov dword ptr [ ebp + 0FFFFD10Ch ] , edi ;0x0052a020 : 89bd0cd1ffff
lea ecx , dword ptr [ ebp + 0FFFFFDE0h ] ;0x0052a026 : 8d8de0fdffff
mov dword ptr [ ebp + 0FFFFD100h ] , ecx ;0x0052a02c : 898d00d1ffff
mov byte ptr [ ebp + 0FFFFFDE0h ] , 00h ;0x0052a032 : c685e0fdffff00
movsx eax , ax ;0x0052a039 : 0fbfc0
;
; ----------------------------------------------------------------------
; VFP 9.0 FIX - SYS(9027) RETURNS THE PATH OF A SPECIAL FOLDER
; December 2019
; ----------------------------------------------------------------------
; CCB
;
; SYS(9027) - Returns the path of a special folder.
;
; 2019/12/27, by ccb
;
cmp eax,9027
je vfpa_sys9027_start
pushd 064h ;0x0052a03c : 6a64
pop esi ;0x0052a03e : 5e
cmp eax , esi ;0x0052a03f : 3bc6
jle Label52a0d0 ;0x0052a041 : 0f8e89001000
mov ecx , 07EAh ;0x0052a047 : b9ea070000
cmp eax , ecx ;0x0052a04c : 3bc1
jg Label52a164 ;0x0052a04e : 0f8f10010000
je Label609b33 ;0x0052a054 : 0f84d9fa0d00
mov ecx , 04F6h ;0x0052a05a : b9f6040000
cmp eax , ecx ;0x0052a05f : 3bc1
jle Label52b6e0 ;0x0052a061 : 0f8e79160000
mov ecx , 07DBh ;0x0052a067 : b9db070000
cmp eax , ecx ;0x0052a06c : 3bc1
jg Label51f355 ;0x0052a06e : 0f8fe152ffff
je Label609700 ;0x0052a074 : 0f8486f60d00
add ecx , 0FFFFFFF9h ;0x0052a07a : 83c1f9
cmp eax , ecx ;0x0052a07d : 3bc1
jg Label4a4938 ;0x0052a07f : 0f8fb3a8f7ff
je Label4f6b07 ;0x0052a085 : 0f847ccafcff
sub eax , 04F7h ;0x0052a08b : 2df7040000
je Label60951e ;0x0052a090 : 0f8488f40d00
dec eax ;0x0052a096 : 48
je Label60950f ;0x0052a097 : 0f8472f40d00
sub eax , 0E4h ;0x0052a09d : 2de4000000
je Label609492 ;0x0052a0a2 : 0f84eaf30d00
sub eax , 01F4h ;0x0052a0a8 : 2df4010000
jne Label462026 ;0x0052a0ad : 0f85737ff3ff
lea eax , dword ptr [ ebp + 0FFFFFDE0h ] ;0x0052a0b3 : 8d85e0fdffff
push eax ;0x0052a0b9 : 50
push dword ptr [ ebp + 12 ] ;0x0052a0ba : ff750c
mov edx , ebx ;0x0052a0bd : 8bd3
call Fun4dc923 ;0x0052a0bf : e85f28fbff
4. APPLIES TO:
VFP 10 (VFP Advanced)
5. REFERENCE WEBSITES:
1, baiyujia.com:
http://www.baiyujia.com
6. OTHER:
For reference only, there is no guarantees.
Any questions or suggestions, please send me an email at ccb2000@163.com.
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