// Generalized bit block transfer
// Can transfer from any device context to this one.
public override void BitBlt(int x, int y, PixelBuffer pixBuff)
{
// Create a buffer
// It has to be big enough for the bitmap data, as well as the x,y, and command
int dataSize = pixBuff.Pixels.Stride * pixBuff.Pixels.Height;
BufferChunk chunk = new BufferChunk(dataSize + 128);
// now put the basic command and simple components in
chunk += GDI32.EMR_BITBLT;
Pack(chunk, x, y);
Pack(chunk, pixBuff.Pixels.Width, pixBuff.Pixels.Height);
chunk += dataSize;
// Finally, copy in the data
chunk.CopyFrom(pixBuff.Pixels.Data, dataSize);
PackCommand(chunk);
}
// Generalized bit block transfer
public override void PixBlt(PixelArray pixBuff, int x, int y)
{
// Create a buffer
// It has to be big enough for the bitmap data, as well as the x,y, and command
int dataSize = pixBuff.BytesPerRow * pixBuff.Height;
BufferChunk chunk = new BufferChunk(dataSize + 128);
// now put the basic command and simple components in
chunk += GDI32.EMR_BITBLT;
ChunkUtils.Pack(chunk, x, y);
ChunkUtils.Pack(chunk, pixBuff.Width, pixBuff.Height);
chunk += dataSize;
// Finally, copy in the data
chunk.CopyFrom(pixBuff.PixelData, dataSize);
SendCommand(chunk);
}
internal void AppendPayload(IntPtr ptr, int length)
{
buffer.CopyFrom(ptr, length);
}
