C / C++ / MFC

1. If you must post code then please use the code button above, to put <pre> tags around it.
2. If you are receiving an error then show the exact text or status code, and show the point in your program where it occurs.

case WM_SOCKET:
		{
			int i=256;
			BYTE* data = new BYTE[256*256*256];
  int packetsize, num;
  int newWidth, newHeight;
  int recvimgsize=0;

   bool bAwaitingImage = false;
			switch(WSAGETSELECTEVENT(lParam))
			{
				case FD_READ:
				{
	
					  num=recv(Socket, (char*)data, 3, 0);
				
				if(num>0)
      {

		 
        packetsize = data[1]*256+ data[2];

        num=recv(Socket, (char*)(data+3), packetsize-3, 0);
     
				}
				 if(num>0)
				 {
				 switch(data[0])
				 {
				  case 2: //received information about window size (image size)

					 
            newWidth = data[3]*256+data[4];
            newHeight = data[5]*256+data[6];
					   		 
				 
			if(newHeight!=cBitmap.bmHeight || newWidth!=cBitmap.bmWidth)
            {
				cBitmap.bmWidth = newWidth;
				cBitmap.bmHeight = newHeight;

              RECT r;

			   GetWindowRect(hWnd, &r);
			   SetWindowPos(hWnd, NULL, r.left, r.top, cBitmap.bmWidth, cBitmap.bmHeight, 0);


			   HDC ThisDC = GetDC(hWnd);

              DeleteDC(RemoteDC);
              RemoteDC = CreateCompatibleDC(ThisDC);

              DeleteObject(hbitmap);
			  hbitmap = CreateCompatibleBitmap(ThisDC,cBitmap.bmWidth ,cBitmap.bmHeight);

              SelectObject(RemoteDC, hbitmap);

              ReleaseDC(hWnd, ThisDC);

				 }
				 break;
				 

				  case 3:
          {
            BITMAPINFO bi;
           
            int biSize = sizeof(BITMAPINFO);
            memcpy(&bi, data+3, biSize);
			SetDIBits(RemoteDC, hbitmap, 0,cBitmap.bmHeight, data+biSize+3, &bi, DIB_RGB_COLORS);

            InvalidateRect(hWnd, NULL, false);

            break;
          }

toms from newdelhi wrote:

it is completely sent but from server side program hangs

toms from newdelhi wrote:

The buffer is showing problem.

ForNow wrote:

doesn't a modal need a user respose yes/no when you do a dlg.domodal that thread stops until the user responds