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[BUG/PRB.] VFP 9.0 FIX - THE COMMAND WINDOW IS SMALL AT STARTUP
January 2024
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CCB
1. BUG:
In vfp9 (and vfp6, vfp7, vfp8), if there is no the resource file (foxuser.dbf),
the Command window is small (5 rows, 50 cols) at startup, now the Command window is bigger (20 rows, 80 cols).
2. CAUSE:
There are some BUGs in the following code.
3. RESOLUTION:
We can write some code to fix the BUG.
Fun5446c1 :: ; proc near
push ebx ;0x005446c1 : 53
push esi ;0x005446c2 : 56
push edi ;0x005446c3 : 57
mov esi , eax ;0x005446c4 : 8bf0
call Fun42f5d1 ;0x005446c6 : e806afeeff
mov eax , dword ptr [eax] ;0x005446cb : 8b00
movzx edi ,word ptr [ eax + 0160h ] ;0x005446cd : 0fb7b860010000
mov ebx , dword ptr [esi] ;0x005446d4 : 8b1e
;
; --------------------------------------------------------------
; VFP 9.0 FIX - THE COMMAND WINDOW IS SMALL AT STARTUP
; July 2019
; --------------------------------------------------------------
; CCB
;
; If there is no the resource file (foxuser.dbf),
; the Command window is small (5 rows, 50 cols) at startup, now the Command window is bigger (20 rows, 80 cols).
;
; 2019/7/21, by ccb
;
cmp dword ptr vfpa_commandwindow_issmall_haverun,01h
je Label5446d6
mov eax , dword ptr [ Data93e6d0 ]
test eax , eax
je Label5446d6
mov eax , dword ptr [eax]
mov eax , dword ptr [eax]
cmp dword ptr [ebx] , eax
jne Label5446d6
mov dword ptr vfpa_commandwindow_issmall_haverun,01h
imul edi , edi , 050h
jmp Label5446d9
Label5446d6 ::
imul edi , edi , 032h ;0x005446d6 : 6bff32
Label5446d9 ::
sub edi , dword ptr [ ebx + 0B0h ] ;0x005446d9 : 2bbbb0000000
mov eax , esi ;0x005446df : 8bc6
add edi , dword ptr [ ebx + 0A0h ] ;0x005446e1 : 03bba0000000
call Fun42f5d1 ;0x005446e7 : e8e5aeeeff
mov eax , dword ptr [eax] ;0x005446ec : 8b00
movzx eax ,word ptr [ eax + 0162h ] ;0x005446ee : 0fb78062010000
lea edx , dword ptr [ eax + 4 * eax ] ;0x005446f5 : 8d1480
;
; --------------------------------------------------------------
; VFP 9.0 FIX - THE COMMAND WINDOW IS SMALL AT STARTUP
; July 2019
; --------------------------------------------------------------
; CCB
;
; If there is no the resource file (foxuser.dbf),
; the Command window is small (5 rows, 50 cols) at startup, now the Command window is bigger (20 rows, 80 cols).
;
; 2019/7/21, by ccb
;
cmp dword ptr vfpa_commandwindow_issmall2_haverun,01h
je Label5446d6
mov ecx , eax
mov eax , dword ptr [ Data93e6d0 ]
test eax , eax
je Label5446f8
mov eax , dword ptr [eax]
mov eax , dword ptr [eax]
cmp dword ptr [ebx] , eax
jne Label5446f8
mov dword ptr vfpa_commandwindow_issmall2_haverun,01h
mov edx , dword ptr vfpa_sys9043_data
add edx , 03h
imul edx , ecx
Label5446f8 ::
sub edx , dword ptr [ ebx + 0B4h ] ;0x005446f8 : 2b93b4000000
mov eax , edi ;0x005446fe : 8bc7
add edx , dword ptr [ ebx + 0A4h ] ;0x00544700 : 0393a4000000
mov ecx , esi ;0x00544706 : 8bce
call Fun43799f ;0x00544708 : e89232efff
mov eax , esi ;0x0054470d : 8bc6
call Fun42f5d1 ;0x0054470f : e8bdaeeeff
mov ebx , eax ;0x00544714 : 8bd8
mov eax , esi ;0x00544716 : 8bc6
call Fun42f5d1 ;0x00544718 : e8b4aeeeff
mov ecx , dword ptr [ebx] ;0x0054471d : 8b0b
movzx edx ,word ptr [ ecx + 0160h ] ;0x0054471f : 0fb79160010000
mov ecx , dword ptr [ Data9377a4 ] ;0x00544726 : 8b0da4779300
mov eax , dword ptr [eax] ;0x0054472c : 8b00
sub ecx , edx ;0x0054472e : 2bca
movzx edx ,word ptr [ eax + 0162h ] ;0x00544730 : 0fb79062010000
sub ecx , edi ;0x00544737 : 2bcf
call Fun439d7e ;0x00544739 : e84056efff
pop edi ;0x0054473e : 5f
pop esi ;0x0054473f : 5e
pop ebx ;0x00544740 : 5b
ret ;0x00544741 : c3
4. APPLIES TO:
VFP 6.0.8167.0
VFP 6.0.8961.0 (SP5)
VFP 7.0.0.9262
VFP 7.0.0.9465 (SP1)
VFP 8.0.0.2521
VFP 8.0.0.3117 (SP1)
VFP 9.0.0.2412
VFP 9.0.0.3504 (SP1)
VFP 9.0.0.4611 (SP2)
VFP 9.0.0.5015 (SP2)
VFP 9.0.0.5411 (SP2)
VFP 9.0.0.5721 (SP2)
VFP 9.0.0.5815 (SP2)
VFP 9.0.0.6303 (SP2)
VFP 9.0.0.6602 (SP2)
VFP 9.0.0.7423 (SP2)
The bug has been fixed in VFP Advanced.
5. REFERENCE WEBSITES:
1, baiyujia.com:
http://www.baiyujia.com
http://www.baiyujia.com/vfpdocuments/f_vfp9fix139.asp
http://www.baiyujia.com/vfpdocuments/f_vfp9fix140.asp
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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