C / C++ / MFC

 WSADATA             wsaData;
 SOCKET              sock;
 SOCKADDR_IN         dst_addr;
 char                sampleMsg[132];
 int                 optval = 1;
 int                 optlen = sizeof(int);

 dst_addr.sin_family = AF_INET;
 dst_addr.sin_port = htons(myPort);
 dst_addr.sin_addr.s_addr = inet_addr("255.255.255.255");

 strcpy(sampleMsg, "This is a test sample msg from the box. ");

 rc = WSAStartup (MAKEWORD (1, 1), &wsaData);
 if(rc != 0)
 {
     // handle error
 }

 // Create a UDP socket
 sock = socket(AF_INET,SOCK_DGRAM, 0);
 if(sock == INVALID_SOCKET)
 {
  // handle error
 }
// Set up the socket to do broadcast messages
 rc = setsockopt(sock, SOL_SOCKET, SO_BROADCAST, (char *)&optval, optlen);
 if(rc == SOCKET_ERROR)
 {
  // handle error
 }

  while(!kbhit())
  {
      printf("Sending data: %s  Any key to quit.\n", sampleMsg);
      rc = sendto(sock, sampleMsg, strlen(sampleMsg) + 1, 0, (struct sockaddr*) &dst_addr, sizeof(dst_addr));
      if(rc == SOCKET_ERROR)
      {
          // handle error
      }
      Sleep(1000);
  }

1. Create a bitmap compatible with the screen device context.
2. Create a memory device context compatible with the screen.
3. Select the bitmap created in step 1 into the DC created in step 2. Be sure to save the return value, so you can restore the original bitmap.
4. Draw the PNG into the memory device context using StretchDIBits, or whatever's appropriate.
5. Restore the original bitmap into the memory device context. This 'detaches' the bitmap created in step 1 from the memory device context.

<br />
HDC hDC = GetDC();<br />
HDC memDC = CreateCompatibleDC ( hDC );<br />
HBITMAP memBM = CreateCompatibleBitmap (hDC,dib->biWidth,dib->biHeight);<br />
HBITMAP memBM2 = CreateCompatibleBitmap (hDC,dib->biWidth,dib->biHeight);<br />
memBM2 = (HBITMAP)SelectObject ( memDC, memBM );<br />
<br />
StretchDIBits(memDC,0,0,dib->biWidth,dib->biHeight,0,0,dib->biWidth,dib->biHeight,lpbits,(LPBITMAPINFO)&dib,DIB_RGB_COLORS,SRCCOPY);<br />
	<br />
memBM = (HBITMAP)SelectObject(memDC,memBM2);<br />
ReleaseDC(memDC);<br />
<br />
CStatic temp = GetDlgItem (IDC_LOGO);<br />
temp.SetBitmap((HBITMAP)memBM);<br />

HDC hDC = GetDC();
HDC memDC = CreateCompatibleDC ( hDC );
HBITMAP memBM = CreateCompatibleBitmap (hDC,dib->biWidth,dib->biHeight);
HBITMAP memBM2;
memBM2 = (HBITMAP)SelectObject ( memDC, memBM );

StretchDIBits(memDC,0,0,dib->biWidth,dib->biHeight,0,0,dib->biWidth,dib->biHeight,lpbits,
    (LPBITMAPINFO)&dib,DIB_RGB_COLORS,SRCCOPY);

SelectObject(memDC,memBM2);
ReleaseDC(memDC);

CStatic *temp = (CStatic*)GetDlgItem (IDC_LOGO);
temp->SetBitmap((HBITMAP)memBM);

BITMAPINFO bi = { dib, 0 };
HBITMAP hbm = CreateDIBitmap(hDC, &dib, CBM_INIT, lpbits, &bi, DIB_RGB_COLORS);