hello world

#include <windows.h>

 

LRESULT CALLBACK WndProc(

  HWND hwnd,              // handle to window

  UINT Msg,               // message

  WPARAM wParam,          // first message parameter

  LPARAM lParam           // second message parameter

);

 

int WINAPI WinMain(

  HINSTANCE hInstance,      // handle to current instance

  HINSTANCE hPrevInstance,  // handle to previous instance

  LPSTR lpCmdLine,          // command line

  int iCmdShow              // show state

)

{

       static TCHAR szAppName[]=TEXT("HelloWin");

       HWND hwnd;

       MSG msg;

       WNDCLASS wndclass;

       wndclass.style=CS_HREDRAW |CS_VREDRAW;

       wndclass.lpfnWndProc=WndProc;

       wndclass.cbClsExtra=0;

       wndclass.cbWndExtra=0;

       wndclass.hInstance=hInstance;

       wndclass.hIcon=0;//loadlcon(NULL,I);

       wndclass.hCursor=NULL;//LoadCurse(NULL,IDC_ARROW);

       wndclass.hbrBackground=(HBRUSH)COLOR_ACTIVEBORDER;//(HBRUSH)Getstock(WHITE_BRUSH);

       wndclass.lpszMenuName=NULL;

       wndclass.lpszClassName=szAppName;

 

       if(!RegisterClass(&wndclass))

       {

              MessageBox(NULL,TEXT("This program requires Windows NT!"),

                     szAppName,MB_ICONERROR);

              return 0;

       }

 

       hwnd=CreateWindow(

         szAppName,  // registered class name

         TEXT("The Hello Program"), // window name

         WS_OVERLAPPEDWINDOW,        // window style

         CW_USEDEFAULT,                // horizontal position of window

         CW_USEDEFAULT,                // vertical position of window

         CW_USEDEFAULT,           // window width

         CW_USEDEFAULT,          // window height

         NULL,      // handle to parent or owner window

         NULL,          // menu handle or child identifier

         hInstance,  // handle to application instance

         NULL       // window-creation data

       );

 

       ShowWindow(hwnd,iCmdShow);

       UpdateWindow(hwnd);

       while(GetMessage(&msg,NULL,0,0))

       {

              TranslateMessage(&msg);

              DispatchMessage(&msg);

       }

       return msg.lParam;

}

 

LRESULT CALLBACK WndProc(

  HWND hwnd,              // handle to window

  UINT msg,               // message

  WPARAM wParam,          // first message parameter

  LPARAM lParam           // second message parameter

)

{

       HDC hdc;

       PAINTSTRUCT ps;

       RECT rect;

       switch(msg)

       {

 

              case WM_CREATE:

                     //     PlaySound(TEXT("hello,war"),NULL,SND_FILENAME|SND_ASYNC);

                            return 0;

              case WM_PAINT:

                     hdc=BeginPaint(hwnd,&ps);

                     GetClientRect(hwnd,&rect);

                     DrawText(

                       hdc,          // handle to DC

                       TEXT("Hello,Windows xp!"), // text to draw

                       -1,       // text length

                       &rect,    // formatting dimensions

                       DT_SINGLELINE|DT_CENTER|DT_VCENTER     // text-drawing options

                            );

                     EndPaint(hwnd,&ps);

                     return 0;

              case WM_DESTROY:

                     PostQuitMessage(0);

                     return 0;

       }

       return DefWindowProc(hwnd,msg,wParam,lParam);

}

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