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[ENHANCED] VFP 9.0 FIX - THE PRINT PREVIEW TOOLBAR
January 2024
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CCB
1. BUG:
In vfp9 (and vfp6, vfp7, vfp8), it will ALWAYS show the Print Preview toolbar.
2. CAUSE:
There are some BUGs in the following code.
3. RESOLUTION:
We can write some code to fix the BUG.
Fun62673d :: ; proc near
push ecx ;0x0062673d : 51
push edi ;0x0062673e : 57
mov edi , 0FFFFBC00h ;0x0062673f : bf00bcffff
push edi ;0x00626744 : 57
call Fun49ec74 ;0x00626745 : e82a85e7ff
test eax , eax ;0x0062674a : 85c0
jne Label626799 ;0x0062674c : 754b
mov ecx , 0915h ;0x0062674e : b915090000
call Fun42c583 ;0x00626753 : e82b5ee0ff
;
; -------------------------------------------------
; VFP 9.0 FIX - THE PRINT PREVIEW TOOLBAR
; October 2018
; -------------------------------------------------
; CCB
;
; In vfp9, it will ALWAYS show the Print Preview toolbar.
; In VFP Advanced, it can show or hide the Print Preview toolbar.
;
; 2018/10/9, by ccb
;
mov dword ptr vfpa_showprintpreview_iscreatewindow,01h
mov dword ptr vfpa_showprintpreview_hwnd,00h
push eax ;0x00626758 : 50
mov edx , 024Dh ;0x00626759 : ba4d020000
mov ecx , edi ;0x0062675e : 8bcf
call Fun40f96f ;0x00626760 : e80a92deff \r\n
;
; -------------------------------------------------
; VFP 9.0 FIX - THE PRINT PREVIEW TOOLBAR
; October 2018
; -------------------------------------------------
; CCB
;
; In vfp9, it will ALWAYS show the Print Preview toolbar.
; In VFP Advanced, it can show or hide the Print Preview toolbar.
;
; 2018/10/9, by ccb
;
mov dword ptr vfpa_showprintpreview_iscreatewindow,00h
pushd 01h ;0x00626765 : 6a01
mov eax , 01000h ;0x00626767 : b800100000
call Fun41114e ;0x0062676c : e8dda9deff
cmp dword ptr [ esp + 12 ] , 00h ;0x00626771 : 837c240c00
jne Label62678d ;0x00626776 : 7515
pushd 0800h ;0x00626778 : 6800080000
call Fun43b78b ;0x0062677d : e80950e1ff
test eax , eax ;0x00626782 : 85c0
je Label62678d ;0x00626784 : 7407
call Fun8f8dba ;0x00626786 : e82f262d00
jmp Label626799 ;0x0062678b : eb0c
Label62678d ::
;
; -------------------------------------------------
; VFP 9.0 FIX - THE PRINT PREVIEW TOOLBAR
; October 2018
; -------------------------------------------------
; CCB
;
; In vfp9, it will ALWAYS show the Print Preview toolbar.
; In VFP Advanced, it can show or hide the Print Preview toolbar.
;
; 2018/10/9, by ccb
;
mov dword ptr vfpa_showprintpreview_isshowwindow,01h
xor edx , edx ;0x0062678d : 33d2
pushd 00h ;0x0062678f : 6a00
inc edx ;0x00626791 : 42
mov ecx , edi ;0x00626792 : 8bcf
call Fun8f890c ;0x00626794 : e873212d00
;
; -------------------------------------------------
; VFP 9.0 FIX - THE PRINT PREVIEW TOOLBAR
; October 2018
; -------------------------------------------------
; CCB
;
; In vfp9, it will ALWAYS show the Print Preview toolbar.
; In VFP Advanced, it can show or hide the Print Preview toolbar.
;
; 2018/10/9, by ccb
;
mov dword ptr vfpa_showprintpreview_isshowwindow,00h
mov dword ptr vfpa_showprintpreview_hwnd,00h
Label626799 ::
pop edi ;0x00626799 : 5f
pop ecx ;0x0062679a : 59
ret 04h ;0x0062679b : c20400
Now In VFP Advanced, it can show or hide the Print Preview toolbar.
In vfp9 and VFP Advanced, if we set ReportBehavior 90,
we can also use the ReportPreview.ToolbarIsVisible property to show or hide the Print Preview toolbar.
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_vfp9fix50.asp
2, foxite.com:
https://www.foxite.com/archives/hiding-print-preview-toolbar-0000050256.htm
https://www.foxite.com/archives/code-in-displaying-print-preview-toolbr-0000028805.htm
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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