case WM_PAINT:
{
HBITMAP	hbm;
BITMAP	bminfo;
hbm = LoadBitmap(GetModuleHandle(NULL), MAKEINTRESOURCE(IDB_BITMAP1));
GetObject(hbm, sizeof(bminfo), &bminfo);

PAINTSTRUCT	ps;
HDC dc = BeginPaint(hwnd, &ps);

HDC	memdc = CreateCompatibleDC(dc);

SelectObject(memdc, hbm);
BitBlt(dc,0,0,bminfo.bmWidth,bminfo.bmHeight,memdc,0,0,SRCCOPY);

DeleteDC(memdc);

EndPaint(hwnd, &ps);
break;
}