private ImageCodecInfo GetEncoder(System.Drawing.Imaging.ImageFormat format)
{
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();
foreach (ImageCodecInfo codec in codecs)
{
if (codec.FormatID == format.Guid)
{
return(codec);
}
}
return(null);
}
/// <summary>
/// Process the capture based on the requested format.
/// </summary>
/// <param name="width">image width</param>
/// <param name="height">image height</param>
/// <param name="pitch">data pitch (bytes per row)</param>
/// <param name="format">target format</param>
/// <param name="pBits">IntPtr to the image data</param>
/// <param name="request">The original requets</param>
protected void ProcessCapture(int width, int height, int pitch, PixelFormat format, IntPtr pBits, ScreenshotRequest request)
{
if (request == null)
{
return;
}
if (format == PixelFormat.Undefined)
{
DebugMessage("Unsupported render target format");
return;
}
// Copy the image data from the buffer
int size = height * pitch;
var data = new byte[size];
Marshal.Copy(pBits, data, 0, size);
// Prepare the response
Screenshot response = null;
if (request.Format == ImageFormat.PixelData)
{
// Return the raw data
response = new Screenshot(request.RequestId, data)
{
Format = request.Format,
PixelFormat = format,
Height = height,
Width = width,
Stride = pitch
};
}
else
{
// Return an image
using (var bm = data.ToBitmap(width, height, pitch, format))
{
System.Drawing.Imaging.ImageFormat imgFormat = System.Drawing.Imaging.ImageFormat.Bmp;
switch (request.Format)
{
case ImageFormat.Jpeg:
imgFormat = System.Drawing.Imaging.ImageFormat.Jpeg;
break;
case ImageFormat.Png:
imgFormat = System.Drawing.Imaging.ImageFormat.Png;
break;
}
response = new Screenshot(request.RequestId, bm.ToByteArray(imgFormat))
{
Format = request.Format,
Height = bm.Height,
Width = bm.Width
};
}
}
// Send the response
SendResponse(response);
}
