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OD按F7不起作用！
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发表于: 2007-4-19 16:22
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在看罗云斌大哥的32汇编。看到第9章的时候有个Subclass的小程序。想自己动手写个将十六进制转换成十进制数和无符号十进制数的程序。可是输入十六进制数根本就没有转换!用od跟踪可是按到对话框打开的时候就不能再运行。是在不懂为什么~~~
源码如下：
顺便问下罗云斌大哥的程序为什么总在窗口过程最后加上这段代码了？
eax究竟犯什么错了非要改变它？
源码如下：
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .386 .model flat, stdcall option casemap: none ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> include windows.inc include user32.inc includelib user32.lib include kernel32.inc includelib kernel32.lib ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ; Equ ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> IDD_DLG1 equ 1000 ICO_MAIN equ 1000 IDC_HEX equ 1001 IDC_SIGENDDEX equ 1002 IDC_UNSIGNEDDEX equ 1003 ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .data? hInstance dd ? hWinMain dd ? dwOption dd ? lpOldProcEdit dd ? .const ;szFmtDecToHex db '%08X',0 szHexToUndec db '%u',0 szHexToDec db '%d',0 szAllowedChar db '0123456789ABCDEFabcdef',08h ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .code ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ; IDC_HEX新窗口过程 ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> _ProcEdit proc uses ebx edi esi hWnd,uMsg,wParam,lParam mov eax,uMsg ;******************************************************************** .if uMsg == WM_CHAR mov eax,wParam; the character mov ecx,sizeof szAllowedChar mov edi,offset szAllowedChar repnz scasb;al/ax - [es:di] .if ZERO? .if al > '9' and eax,not 20h .endif invoke CallWindowProc,lpOldProcEdit,hWnd,uMsg,eax,lParam ret .endif .else invoke CallWindowProc,lpOldProcEdit,hWnd,uMsg,wParam,lParam ret .endif xor eax,eax ret _ProcEdit endp ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ; Hex to dec十六进制转十进制 ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> _HexToDec proc LOCAL @szBuffer[512]:byte invoke GetDlgItemText,hWinMain,IDC_HEX,addr @szBuffer,sizeof @szBuffer lea esi,@szBuffer cld xor eax,eax mov ebx,16 .while TRUE movzx ecx,byte ptr [esi];or mov cl,byte ptr [esi] inc esi .break .if !ecx .if cl > '9' sub cl,'A' - 0ah .else sub cl,'0' .endif mul ebx add eax,ecx .endw invoke wsprintf,addr @szBuffer,addr szHexToUndec,eax invoke SetDlgItemText,hWinMain,IDC_UNSIGNEDDEX,addr @szBuffer invoke wsprintf,addr @szBuffer,addr szHexToDec,eax invoke SetDlgItemText,hWinMain,IDC_SIGENDDEX,addr @szBuffer ret _HexToDec endp ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> _ProcDlgMain proc uses ebx edi esi hWnd,wMsg,wParam,lParam mov eax,wMsg ;******************************************************************** .if eax == WM_CLOSE invoke EndDialog,hWinMain,NULL ;******************************************************************** .elseif eax == WM_INITDIALOG mov eax,hWnd mov hWinMain,eax invoke LoadIcon,hInstance,ICO_MAIN invoke SendMessage,hWnd,WM_SETICON,ICON_BIG,eax invoke SendDlgItemMessage,hWinMain,IDC_HEX,EM_LIMITTEXT,8,0 invoke SendDlgItemMessage,hWinMain,IDC_UNSIGNEDDEX,EM_LIMITTEXT,10,0 invoke SendDlgItemMessage,hWinMain,IDC_SIGENDDEX,EM_LIMITTEXT,10,0 invoke GetDlgItem,hWinMain,IDC_HEX invoke SetWindowLong,eax,GWL_WNDPROC,addr _ProcEdit mov lpOldProcEdit,eax ;******************************************************************** .elseif eax == WM_COMMAND mov eax,wParam .if ! dwOption mov dwOption,TRUE .if eax == IDC_HEX invoke _HexToDec .endif mov dwOption,FALSE .endif ;******************************************************************** .else mov eax,FALSE ret .endif mov eax,TRUE ret _ProcDlgMain endp ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> start: invoke GetModuleHandle,NULL mov hInstance,eax invoke DialogBoxParam,hInstance,IDD_DLG1,NULL,offset _ProcDlgMain,NULL invoke ExitProcess,NULL ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> end start
顺便问下罗云斌大哥的程序为什么总在窗口过程最后加上这段代码了？
.else mov eax,FALSE ret .endif mov eax,TRUE
eax究竟犯什么错了非要改变它？
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