C语言创建windows窗口实例
耐得住寂寞，禁得起诱惑，这就是程序人生
步骤：
1.在WinMain中定义各种变量
2.注册窗口类RegisterClass
3.创建窗口CreateWindow
4.显示窗口和更新窗口
ShowWindow(hwnd,iCmdShow);
UpdateWindow(hwnd);
5.消息循环
while(GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
完整代码：
#include<windows.h>
LRESULTCALLBACKMyProc(HWNDhwnd,UINTmessage,WPARAMwParam,LPARAMlParam);
intWINAPIWinMain(HINSTANCEhInstance,HINSTANCEhPrevInstance,LPSTRlpCmdLine,intnShowCmd)
{
MSG msg;
HWND hwnd;
staticTCHARszAppName[]="hl";
WNDCLASSwndclass;
wndclass.style =CS_HREDRAW|CS_VREDRAW;
wndclass.cbClsExtra =0;
wndclass.cbWndExtra =0;
wndclass.lpfnWndProc =MyProc;
wndclass.hInstance =hInstance;
wndclass.hIcon =LoadIcon(NULL,IDI_APPLICATION);
wndclass.hCursor =LoadCursor(NULL,IDC_ARROW);
wndclass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
wndclass.lpszMenuName=NULL;
wndclass.lpszClassName=szAppName;
if(!RegisterClass(&wndclass))
{
MessageBox(NULL,TEXT("error"),TEXT("title"),MB_ICONERROR);
return0;
}
hwnd=CreateWindow(szAppName,
TEXT("Hello"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
hInstance,
NULL
);
ShowWindow(hwnd,nShowCmd);
UpdateWindow(hwnd);
while(GetMessage(&msg,hwnd,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
returnmsg.wParam;
}
LRESULTCALLBACKMyProc(HWNDhwnd,UINTmessage,WPARAMwParam,LPARAMlParam)
{
switch(message)
{
caseWM_DESTROY:
PostQuitMessage(0);
return0;
}
returnDefWindowProc(hwnd,message,wParam,lParam);
}