----------------------------------------------------------------------------------------------------------
[ENHANCED] VFP 9.0 FIX - THE MAXIMUM NUMBER OF DISPLAY ROWS WITHIN THE COMMAND WINDOW AT STARTUP
January 2024
----------------------------------------------------------------------------------------------------------
CCB
1. BUG:
In vfp9 (and vfp6, vfp7, vfp8), the maximum number of display rows within the command window at startup is 2, now it can be set to 1 to 255.
In VFP Advanced 32-bit, we must set the maximum number of display rows within the command window at startup in the Windows registry:
HKEY_CURRENT_USER\Software\Microsoft\VisualFoxPro\10.n\Options\CommandWindowDisplayRows.
In VFP Advanced 64-bit, we must set the maximum number of display rows within the command window at startup in the Windows registry:
HKEY_CURRENT_USER\Software\Microsoft\VisualFoxPro64\10.n\Options\CommandWindowDisplayRows.
2. CAUSE:
There are some BUGs in the following code.
3. RESOLUTION:
We can write some code to fix the BUG.
Fun87e9f0 :: ; proc near
push ebp ;0x0087e9f0 : 55
mov ebp , esp ;0x0087e9f1 : 8bec
sub esp , 0218h ;0x0087e9f3 : 81ec18020000
mov eax , dword ptr [ Data937090 ] ;0x0087e9f9 : a190709300
mov dword ptr [ ebp - 8 ] , eax ;0x0087ea04 : 8945f8
mov dword ptr [ ebp + 0FFFFFDE8h ] , 01h ;0x0087ea07 : c785e8fdffff01000000
push ebx ;0x0087e9fe : 53
push esi ;0x0087e9ff : 56
push edi ;0x0087ea00 : 57
;
; -----------------------------------------------------------------------------------------------
; VFP 9.0 FIX - THE MAXIMUM NUMBER OF DISPLAY ROWS WITHIN THE COMMAND WINDOW AT STARTUP
; December 2020
; -----------------------------------------------------------------------------------------------
; CCB
;
; The maximum number of display rows within the command window at startup.
;
; 2020/12/10, by ccb
;
push dword ptr [ ebp + 8 ]
push offset vfpa_sys9043_valuename
call Fun84f3ac
test eax , eax
jne Label87ea08
push dword ptr [ ebp + 12 ]
call atoi
pop ecx
cmp eax,01h
jb Label87f318
cmp eax,0FFh
ja Label87f318
mov dword ptr vfpa_sys9043_data,eax
jmp Label87f318
Label87ea08 ::
push dword ptr [ ebp + 8 ] ;0x0087ea01 : ff7508
call Fun87e9aa ;0x0087ea11 : e894ffffff
push dword ptr [ ebp + 12 ] ;0x0087ea16 : ff750c
mov edi , eax ;0x0087ea19 : 8bf8
call atoi ;0x0087ea1b : ff15c0799100
xor esi , esi ;0x0087ea21 : 33f6
cmp eax , esi ;0x0087ea23 : 3bc6
pop ecx ;0x0087ea25 : 59
mov ecx , 08738h ;0x0087ea26 : b938870000
setne bl ;0x0087ea2b : 0f95c3
cmp edi , ecx ;0x0087ea2e : 3bf9
mov dword ptr [ ebp + 8 ] , eax ;0x0087ea30 : 894508
jg Label87ef9d ;0x0087ea33 : 0f8f64050000
je Label87ef3f ;0x0087ea39 : 0f8400050000
add ecx , 0FFFFFFE5h ;0x0087ea3f : 83c1e5
cmp edi , ecx ;0x0087ea42 : 3bf9
jg Label87ecbe ;0x0087ea44 : 0f8f74020000
je Label87ec93 ;0x0087ea4a : 0f8443020000
mov ecx , 08710h ;0x0087ea50 : b910870000
cmp edi , ecx ;0x0087ea55 : 3bf9
jg Label87eb8a ;0x0087ea57 : 0f8f2d010000
je Label87eb86 ;0x0087ea5d : 0f8423010000
add ecx , 0FFFFFFF9h ;0x0087ea63 : 83c1f9
cmp edi , ecx ;0x0087ea66 : 3bf9
jg Label87eae7 ;0x0087ea68 : 7f7d
je Label87eadd ;0x0087ea6a : 7471
sub edi , esi ;0x0087ea6c : 2bfe
je Label87ead2 ;0x0087ea6e : 7462
sub edi , 08700h ;0x0087ea70 : 81ef00870000
je Label87eac7 ;0x0087ea76 : 744f
dec edi ;0x0087ea78 : 4f
je Label87eaac ;0x0087ea79 : 7431
dec edi ;0x0087ea7b : 4f
je Label87ea9f ;0x0087ea7c : 7421
dec edi ;0x0087ea7e : 4f
je Label87ea95 ;0x0087ea7f : 7414
sub edi , 05h ;0x0087ea81 : 83ef05
jne Label87f318 ;0x0087ea84 : 0f858e080000
mov byte ptr [ Data94741e ] , bl ;0x0087ea8a : 881d1e749400
jmp Label87f318 ;0x0087ea90 : e983080000
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_vfp9fix83.asp
6. OTHER:
For reference only, there is no guarantees.
Any questions or suggestions, please send me an email at ccb2000@163.com.
|