PC技术辅导:窗口子类化（2）

　　代码举例：
　　.386
　　.model flat,stdcall
　　option casemap:none
　　include \masm32\include\windows.inc
　　include \masm32\include\user32.inc
　　include \masm32\include\kernel32.inc
　　include \masm32\include\comctl32.inc
　　includelib \masm32\lib\comctl32.lib
　　includelib \masm32\lib\user32.lib
　　includelib \masm32\lib\kernel32.lib
　　WinMain PROTO :DWORD,:DWORD,:DWORD,:DWORD
　　EditWndProc PROTO :DWORD,:DWORD,:DWORD,:DWORD
　　.data
　　ClassName db "SubclassWinClass",0
　　AppName db "Subclassing Demo",0
　　EditClass db "EDIT",0
　　Message db "You pressed Enter in the text box!",0
　　.data?
　　hInstance HINSTANCE ?
　　hwndEdit dd ?
　　OldWndProc dd ?
　　.code
　　start:
　　invoke GetModuleHandle, NULL
　　mov hInstance,eax
　　invoke WinMain, hInstance,NULL,NULL, SW_SHOWDEFAULT
　　invoke ExitProcess,eax
　　WinMain proc hInst:HINSTANCE,hPrevInst:HINSTANCE,CmdLine:LPSTR,CmdShow:DWORD
　　LOCAL wc:WNDCLASSEX
　　LOCAL msg:MSG
　　LOCAL hwnd:HWND
　　mov wc.cbSize,SIZEOF WNDCLASSEX
　　mov wc.style, CS_HREDRAW or CS_VREDRAW
　　mov wc.lpfnWndProc, OFFSET WndProc
　　mov wc.cbClsExtra,NULL
　　mov wc.cbWndExtra,NULL
　　push hInst
　　pop wc.hInstance
　　mov wc.hbrBackground,COLOR_APPWORKSPACE
　　mov wc.lpszMenuName,NULL
　　mov wc.lpszClassName,OFFSET ClassName
　　invoke LoadIcon,NULL,IDI_APPLICATION
　　mov wc.hIcon,eax
　　mov wc.hIconSm,eax
　　invoke LoadCursor,NULL,IDC_ARROW
　　mov wc.hCursor,eax
　　invoke RegisterClassEx, addr wc
　　invoke CreateWindowEx,WS_EX_CLIENTEDGE,ADDR ClassName,ADDR AppName,\ 　WS_OVERLAPPED+WS_CAPTION+WS_SYSMENU+WS_MINIMIZEBOX+WS_MAXIMIZEBOX+WS_VISIBLE,CW_USEDEFAULT,\
　　CW_USEDEFAULT,350,200,NULL,NULL,\
　　hInst,NULL
　　mov hwnd,eax
　　.while TRUE
　　invoke GetMessage, ADDR msg,NULL,0,0
　　.BREAK .IF (!eax)
　　invoke TranslateMessage, ADDR msg
　　invoke DispatchMessage, ADDR msg
　　.endw
　　mov eax,msg.wParam
　　ret
　　WinMain endp