private int GetMoveRects(int bufferSizeBytes, out OutputDuplicateMoveRectangle[] moveRects)
{
int moveRectsBufferSizeRequired = 0;
moveRects = new OutputDuplicateMoveRectangle[0];
if (bufferSizeBytes <= 0)
{
return(moveRectsBufferSizeRequired);
}
var moveItemSize = Marshal.SizeOf(typeof(OutputDuplicateMoveRectangle));
var maxMoveRectItemCount = bufferSizeBytes / moveItemSize;
if (maxMoveRectItemCount > 0)
{
var moveRectBuf = new OutputDuplicateMoveRectangle[maxMoveRectItemCount];
try
{
deskDupl.GetFrameMoveRects(bufferSizeBytes, moveRectBuf, out moveRectsBufferSizeRequired);
}
catch (SharpDXException ex)
{
if (ex.ResultCode == SharpDX.DXGI.ResultCode.MoreData)
{
logger.Error(ex);
// TODO:
//maxMoveRectItemCount = moveRectsBufferSizeRequired / moveItemSize;
//moveRectBuf = new OutputDuplicateMoveRectangle[maxMoveRectItemCount];
// continue...
}
throw;
}
var moveCount = moveRectsBufferSizeRequired / moveItemSize;
if (moveCount > 0)
{
if (maxMoveRectItemCount > moveCount)
{
moveRects = moveRectBuf.Take(moveCount).ToArray();
}
else
{
moveRects = moveRectBuf;
}
}
}
return(moveRectsBufferSizeRequired);
}
