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[BUG/PRB.] VFP 9.0 FIX - CONVERT INVALID CHARACTERS TO UPPERCASE FOR THE TEXTBOX CONTROL
January 2024
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CCB
1. BUG:
In VFP 9.0 and earlier versions, if we set TextBox.Format = "!" (converts alphabetic characters to uppercase),
when we press an invalid character (for example, a Function key),
it will be converted to the Latin capital letter Y with diaeresis (CHR(0x9F)).
There is the bug for the TextBox control, the ComboBox control and the @ ... GET command.
There is no the bug for the EditBox control.
The bug was reported by Francisco Prieto.
2. CAUSE:
There are some BUGs in the following code.
3. RESOLUTION:
We can write some code to fix the BUG.
Label5dbef8 ::
mov al , byte ptr [ ebx + 8 ] ;0x005dbef8 : 8a4308
cmp al , 043h ;0x005dbefb : 3c43
mov esi , 0103h ;0x005dbefd : be03010000
jne Label5dbf31 ;0x005dbf02 : 752d
mov eax , dword ptr [ ebx + 0B4h ] ;0x005dbf04 : 8b83b4000000
test al , 040h ;0x005dbf0a : a840
je Label5dbf1b ;0x005dbf0c : 740d
;
; ---------------------------------------------------------------------------------------
; VFP 9.0 FIX - CONVERT INVALID CHARACTERS TO UPPERCASE FOR THE TEXTBOX CONTROL
; February 2021
; ---------------------------------------------------------------------------------------
; CCB
;
; Convert invalid characters to uppercase for the TextBox control.
;
; 2021/2/15, by ccb
;
cmp dword ptr vfpa_sys9052_data,00h
jne Label5dbf0e
cmp ecx , 07FFFh
jne Label5dbf0e
jmp Label5dbf1b
Label5dbf0e ::
movzx ecx , cl ;0x005dbf0e : 0fb6c9
movzx ecx ,byte ptr [ ecx + offset Data9375a0 ] ;0x005dbf11 : 0fb689a0759300
mov dword ptr [ ebp - 84 ] , ecx ;0x005dbf18 : 894dac
Label5dbf1b ::
test al , 020h ;0x005dbf1b : a820
je Label5dbf31 ;0x005dbf1d : 7412
movzx eax , cl ;0x005dbf1f : 0fb6c1
test word ptr [ 2 * eax + offset Data937360 ] , si ;0x005dbf22 : 6685344560739300
jne Label5dbf31 ;0x005dbf2a : 7505
mov ecx , edi ;0x005dbf2c : 8bcf
mov dword ptr [ ebp - 84 ] , ecx ;0x005dbf2e : 894dac
Label5dbf31 ::
xor eax , eax ;0x005dbf31 : 33c0
cmp byte ptr [ ebp + 01F7h ] , 07h ;0x005dbf33 : 80bdf701000007
sete al ;0x005dbf3a : 0f94c0
mov dword ptr [ ebp - 100 ] , eax ;0x005dbf3d : 89459c
movzx eax ,byte ptr [ ebp + 01F7h ] ;0x005dbf40 : 0fb685f7010000
cmp eax , 048h ;0x005dbf47 : 83f848
jg Label5dc181 ;0x005dbf4a : 0f8f31020000
je Label5dc174 ;0x005dbf50 : 0f841e020000
cmp eax , 05h ;0x005dbf56 : 83f805
je Label5dc22e ;0x005dbf59 : 0f84cf020000
cmp eax , 021h ;0x005dbf5f : 83f821
je Label5dc164 ;0x005dbf62 : 0f84fc010000
cmp eax , 022h ;0x005dbf68 : 83f822
jle Label5dc23a ;0x005dbf6b : 0f8ec9020000
cmp eax , 024h ;0x005dbf71 : 83f824
jle Label5dbfbc ;0x005dbf74 : 7e46
cmp eax , 02Ah ;0x005dbf76 : 83f82a
je Label5dbfbc ;0x005dbf79 : 7441
cmp eax , 039h ;0x005dbf7b : 83f839
je Label5dbf99 ;0x005dbf7e : 7419
cmp eax , 041h ;0x005dbf80 : 83f841
jne Label5dc23a ;0x005dbf83 : 0f85b1020000
movzx eax , cl ;0x005dbf89 : 0fb6c1
test word ptr [ 2 * eax + offset Data937360 ] , si ;0x005dbf8c : 6685344560739300
jmp Label5dc238 ;0x005dbf94 : e99f020000
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_vfp9fix155.asp
http://www.baiyujia.com/vfpdocuments/f_vfp9fix92.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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