Creation of Simple windows

SDK Program for Creating simple windows with different window styles


SOURCE CODE:
#include<>
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,PSTR
szCmdLine,int iCmdShow)
{
static TCHAR szAppName[]=TEXT("hellowin");
HWND hwnd;
MSG msg;
WNDCLASS wndclass;
wndclass.style=CS_HREDRAWCS_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 =szAppName;

if(!RegisterClass(&wndclass))
{
MessageBox(NULL,TEXT("This Program Requires WindowsNT"),szAppName,MB_ICONERROR);
return 0;
}

hwnd=CreateWindow(szAppName,TEXT("The Hello Program"),WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,CW_USEDEFAULT, CW_USEDEFAULT,CW_USEDEFAULT,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_CREATE:
//PlaySound(TEXT("hellowin.wav"),NULL,SND_FILENAMESND_ASYNC);
return 0;

case WM_PAINT:
hdc=BeginPaint(hwnd,&ps);
GetClientRect(hwnd,&rect);
DrawText(hdc,TEXT("Hello, Windows 98!"),-1, &rect,DT_SINGLELINEDT_CENTERDT_VCENTER);
EndPaint(hwnd,&ps);
return 0;

case WM_DESTROY:
PostQuitMessage(0);
return 0;
}

return DefWindowProc(hwnd,message,wparam,lparam);
}