一个简单hello world程序

#include <windows.h>LRESULT CALLBACK WndProc (HWND,UINT,WPARAM,LPARAM);int WINAPI WinMain (HINSTANCE hInstance,HINSTANCE hPrevInstance, PSTR szCmdLine,int iCmdShow){ HWND hwnd; MSG msg; WNDCLASS wndclass; char *szname ="mypro"; wndclass.style = CS_HREDRAW|CS_VREDRAW; wndclass.lpfnWndProc = WndProc; wndclass.cbClsExtra = 0; wndclass.cbWndExtra = 0; 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 = szname; if(!RegisterClass (&wndclass)) return 0; hwnd = CreateWindow (szname, TEXT("the hello programe"), WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 345, 286, NULL, NULL, hInstance, NULL); ShowWindow (hwnd,iCmdShow); UpdateWindow(hwnd); while (GetMessage (&msg,NULL,0,0)) { TranslateMessage (&msg); DispatchMessage (&msg); } return msg.wParam;} LRESULT CALLBACK WndProc (HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam){ HDC hdc; PAINTSTRUCT ps; RECT rect; switch(message) { case WM_PAINT: hdc=BeginPaint (hwnd,&ps); GetClientRect(hwnd,&rect); DrawText (hdc,TEXT("hello world"),-1,&rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER); EndPaint (hwnd,&ps); return 0; case WM_DESTROY: PostQuitMessage(0); return 0; } return DefWindowProc(hwnd,message,wParam,lParam);}