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[BUG/PRB.] VFP 9.0 FIX - INPUT SOME CONTROL CHARACTERS IN EDITOR WHEN THE VISUAL FOXPRO DEBUGGER IS RUNNING
January 2025
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CCB
1. BUG:
In vfp9 (and vfp6, vfp7, vfp8), when the Visual FoxPro Debugger is not running in a separate frame,
we can input the following control characters in Editor, the Command window and the EditBox control:
CTRL+H
CTRL+K
CTRL+T
CTRL+Y
In vfp9 (and vfp6, vfp7, vfp8), when the Visual FoxPro Debugger is running in a separate frame,
we can input the following control characters in Editor, the Command window and the EditBox control:
CTRL+C
CTRL+H
CTRL+K
CTRL+R
CTRL+S
CTRL+T
CTRL+U
CTRL+X
CTRL+Y
CTRL+Z
there are some differences.
The bug only occurs when the Visual FoxPro Debugger is running in a separate frame (Tools --> Options --> Debug --> Environment: Debug Frame),
it does not occur when the Visual FoxPro Debugger is running in the main Visual FoxPro frame (Tools --> Options --> Debug --> Environment: FoxPro Frame).
In Visual FoxPro Advanced, when the Visual FoxPro Debugger is not running in a separate frame,
we can input the following control characters in Editor, the Command window and the EditBox control:
CTRL+H
CTRL+K
CTRL+T
CTRL+Y
In Visual FoxPro Advanced, when the Visual FoxPro Debugger is running in a separate frame,
we can input the following control characters in Editor, the Command window and the EditBox control:
CTRL+H
CTRL+K
CTRL+T
CTRL+Y
we can't input the following control characters in Editor, the Command window and the EditBox control:
CTRL+C
CTRL+R
CTRL+S
CTRL+U
CTRL+X
CTRL+Z
it is the same as the Visual FoxPro Debugger is not running in a separate frame.
2. CAUSE:
There are some BUGs in the following code.
3. RESOLUTION:
We can write some code to fix the BUG.
Label5a31d0 ::
mov eax , dword ptr [edi] ;0x005a31d0 : 8b07
mov edx , dword ptr [ ebp + 12 ] ;0x005a31d2 : 8b550c
push esi ;0x005a31d5 : 56
push dword ptr [ ebp + 16 ] ;0x005a31d6 : ff7510
mov ecx , ebx ;0x005a31d9 : 8bcb
push dword ptr [ eax + 8 ] ;0x005a31db : ff7008
call Fun4a00cc ;0x005a31de : e8e9ceefff
test eax , eax ;0x005a31e3 : 85c0
jg Label49ff2f ;0x005a31e5 : 0f8f44cdefff
cmp ebx , 0144h ;0x005a31eb : 81fb44010000
jne Label49ff7f ;0x005a31f1 : 0f8588cdefff
mov eax , dword ptr [ ebp + 24 ] ;0x005a31f7 : 8b4518
mov ebx , dword ptr [eax] ;0x005a31fa : 8b18
mov ecx , 02000h ;0x005a31fc : b900200000
mov eax , ebx ;0x005a3201 : 8bc3
call Fun42e572 ;0x005a3203 : e86ab3e8ff
test eax , eax ;0x005a3208 : 85c0
jne Label5a3226 ;0x005a320a : 751a
mov eax , dword ptr [ebx] ;0x005a320c : 8b03
mov ecx , dword ptr [ eax + 0150h ] ;0x005a320e : 8b8850010000
test ecx , ecx ;0x005a3214 : 85c9
je Label5a322d ;0x005a3216 : 7415
pushd 00h ;0x005a3218 : 6a00
pushd 06Eh ;0x005a321a : 6a6e
pop edx ;0x005a321c : 5a
call Fun436ddb ;0x005a321d : e8b93be9ff
test eax , eax ;0x005a3222 : 85c0
je Label5a322d ;0x005a3224 : 7407
Label5a3226 ::
mov eax , dword ptr [ ebp + 16 ] ;0x005a3226 : 8b4510
mov dword ptr [eax] , edi ;0x005a3229 : 8938
jmp Label5a3247 ;0x005a322b : eb1a
Label5a322d ::
mov ebx , dword ptr [ ebp + 8 ] ;0x005a322d : 8b5d08
jmp Label49ff7f ;0x005a3230 : e94acdefff
Label5a3235 ::
mov eax , dword ptr [ Data937794 ] ;0x005a3235 : a194779300
mov dword ptr [ ebp - 4 ] , eax ;0x005a323a : 8945fc
jmp Label49ff99 ;0x005a323d : e957cdefff
Label5a3242 ::
mov ecx , dword ptr [ ebp + 16 ] ;0x005a3242 : 8b4d10
mov dword ptr [ecx] , eax ;0x005a3245 : 8901
Label5a3247 ::
or dword ptr [esi] , 0FFFFFFFFh ;0x005a3247 : 830eff
pushd 03h ;0x005a324a : 6a03
pop eax ;0x005a324c : 58
jmp Label49ff2f ;0x005a324d : e9ddccefff
Label5a3252 ::
;
; ----------------------------------------------------------------------------------------------------------
; VFP 9.0 FIX - INPUT SOME CONTROL CHARACTERS IN EDITOR WHEN THE VISUAL FOXPRO DEBUGGER IS RUNNING
; December 2024
; ----------------------------------------------------------------------------------------------------------
; CCB
;
; In vfp9 (and vfp6, vfp7, vfp8), when the Visual FoxPro Debugger is not running in a separate frame, we can input a few control characters in Editor,
; when the Visual FoxPro Debugger is running in a separate frame, we can input more control characters in Editor, there are some differences.
; In Visual FoxPro Advanced, when the Visual FoxPro Debugger is not running in a separate frame, we can input a few control characters in Editor,
; when the Visual FoxPro Debugger is running in a separate frame, we can't input more control characters in Editor,
; it is the same as the Visual FoxPro Debugger is not running in a separate frame.
;
; 2024/12/23, by ccb
;
cmp dword ptr vfpa_sys9180_data,00h
jne Label5a3253
cmp dword ptr [ Data937794 ],00h
je Label5a3253
cmp dword ptr [ Data93c2cc ],00h
je Label5a3253
mov ecx , dword ptr [ Data937794 ]
mov ecx , dword ptr [ecx]
cmp eax , dword ptr [ ecx + 72 ]
jae Label4a1e0f
mov ecx , dword ptr [ Data93c2cc ]
mov ecx , dword ptr [ecx]
cmp eax , dword ptr [ ecx + 72 ]
jae Label4a1e0f
jmp Label5a3253
Label5a3253 ::
or eax , 0FFFFFFFFh ;0x005a3252 : 83c8ff
jmp Label49ff2f ;0x005a3255 : e9d5ccefff
Label5a325a ::
mov ecx , dword ptr [ ebp + 24 ] ;0x005a325a : 8b4d18
mov dword ptr [ecx] , ebx ;0x005a325d : 8919
jmp Label49ff2f ;0x005a325f : e9cbccefff
Label5a3264 ::
and dword ptr [ ebp + 24 ] , 00h ;0x005a3264 : 83651800
jmp Label4a1ea0 ;0x005a3268 : e933ecefff
Label5a326d ::
xor eax , eax ;0x005a326d : 33c0
inc eax ;0x005a326f : 40
jmp Label49ff2f ;0x005a3270 : e9baccefff
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_vfp9fix371.asp
http://www.baiyujia.com/vfpdocuments/f_vfp9fix92.asp
http://www.baiyujia.com/vfpdocuments/f_vfp9fix155.asp
http://www.baiyujia.com/vfpdocuments/f_vfp9fix156.asp
http://www.baiyujia.com/vfpdocuments/f_vfp9fix307.asp
http://www.baiyujia.com/vfpdocuments/f_vfp9fix308.asp
http://www.baiyujia.com/vfpdocuments/f_vfp9fix316.asp
http://www.baiyujia.com/vfpdocuments/f_vfp9fix317.asp
http://www.baiyujia.com/vfpdocuments/f_vfp9fix318.asp
http://www.baiyujia.com/vfpdocuments/f_vfp9fix352.asp
http://www.baiyujia.com/vfpdocuments/f_vfp9fix353.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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