;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; Sender.asm; 从一个程序向另一个窗口程序发送消息 之 发送程序;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .386 .model flat,stdcall option casemap:none;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; Include 文件定义;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>include windows.incinclude user32.incincludelib user32.libinclude kernel32.incincludelib kernel32.lib;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; 数据段;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .datahWnd dd ?szBuffer db 256 dup (?) .constszCaption db 'SendMessage',0szStart db 'Press OK to start SendMessage, param: %08x!',0szReturn db 'SendMessage returned!',0szDestClass db 'MyClass',0 ;目标窗口的窗口类szText db 'Text send to other windows',0szNotFound db 'Receive Message Window not found!',0;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; 代码段;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .codestart: invoke FindWindow,addr szDestClass,NULL .if eax mov hWnd,eax ;找到目标窗口则发送消息 invoke wsprintf,addr szBuffer,addr szStart,addr szText invoke MessageBox,NULL,offset szBuffer,offset szCaption,MB_OK invoke SendMessage,hWnd,WM_SETTEXT,0,addr szText invoke MessageBox,NULL,offset szReturn,offset szCaption,MB_OK .else invoke MessageBox,NULL,offset szNotFound,offset szCaption,MB_OK .endif invoke ExitProcess,NULL;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> end start;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
消息发送者代码：
; Receiver.asm; 从一个程序向另一个窗口程序发送消息 之 消息接收程序;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .386 .model flat,stdcall option casemap:none;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; Include 文件定义;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>include windows.incinclude gdi32.incincludelib gdi32.libinclude user32.incincludelib user32.libinclude kernel32.incincludelib kernel32.lib;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; 数据段;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .data?hInstance dd ?hWinMain dd ?szBuffer db 512 dup (?) .constszClassName db 'MyClass',0szCaptionMain db 'Receive Message',0szReceive db 'Receive WM_SETTEXT message',0dh,0ah db 'param: %08x',0dh,0ah db 'text: "%s"',0dh,0ah,0;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; 代码段;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .code;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; 窗口过程;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>_ProcWinMain proc uses ebx edi esi,hWnd,uMsg,wParam,lParam mov eax,uMsg;**************************************************************** .if eax == WM_CLOSE invoke DestroyWindow,hWinMain invoke PostQuitMessage,NULL;****************************************************************; 收到 WM_SETTEXT 消息则将消息字符串和字符串地址显示出来;**************************************************************** .elseif eax == WM_SETTEXT invoke wsprintf,addr szBuffer,addr szReceive,\ lParam,lParam invoke MessageBox,hWnd,offset szBuffer,addr szCaptionMain,MB_OK;**************************************************************** .else invoke DefWindowProc,hWnd,uMsg,wParam,lParam ret .endif;**************************************************************** xor eax,eax ret_ProcWinMain endp;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>_WinMain proc local @stWndClass:WNDCLASSEX local @stMsg:MSG invoke GetModuleHandle,NULL mov hInstance,eax invoke RtlZeroMemory,addr @stWndClass,sizeof @stWndClass;****************************************************************; 注册窗口类;**************************************************************** invoke LoadCursor,0,IDC_ARROW mov @stWndClass.hCursor,eax push hInstance pop @stWndClass.hInstance mov @stWndClass.cbSize,sizeof WNDCLASSEX mov @stWndClass.style,CS_HREDRAW or CS_VREDRAW mov @stWndClass.lpfnWndProc,offset _ProcWinMain mov @stWndClass.hbrBackground,COLOR_WINDOW + 1 mov @stWndClass.lpszClassName,offset szClassName invoke RegisterClassEx,addr @stWndClass;****************************************************************; 建立并显示窗口;**************************************************************** invoke CreateWindowEx,WS_EX_CLIENTEDGE ,offset szClassName,offset szCaptionMain,\ WS_OVERLAPPEDWINDOW,\ 50,50,200,150,\ NULL,NULL,hInstance,NULL mov hWinMain,eax invoke ShowWindow,hWinMain,SW_SHOWNORMAL invoke UpdateWindow,hWinMain;****************************************************************; 消息循环;**************************************************************** .while TRUE invoke GetMessage,addr @stMsg,NULL,0,0 .break .if eax == 0 invoke TranslateMessage,addr @stMsg invoke DispatchMessage,addr @stMsg .endw ret_WinMain endp;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>start: call _WinMain invoke ExitProcess,NULL;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> end start
MakeFile文件：
LINK_FLAG = /subsystem:windowsML_FLAG = /c /coffall: Sender.exe Receiver.exeSender.exe: Sender.obj Link $(LINK_FLAG) Sender.objReceiver.exe: Receiver.obj Link $(LINK_FLAG) Receiver.obj.asm.obj: ml $(ML_FLAG) $<clean: del *.obj
