// Constructor.
public DrawingWindowBuffer(IToolkitWindow windowToBuffer)
{
toolkit = windowToBuffer.Toolkit;
widget = windowToBuffer as InputOutputWidget;
buffer = null;
graphics = null;
}
// Delete the buffer object.
private void DeleteBuffer()
{
// Make sure that we dispose of the X graphics object
// before we dispose of the buffer.
if(graphics != null)
{
graphics.graphics.Dispose();
}
if(buffer != null)
{
buffer.Dispose();
buffer = null;
}
}
// Create the buffer object for the widget.
private void CreateBuffer(int width, int height)
{
DeleteBuffer();
buffer = new DoubleBuffer(widget);
}