public void CleanScreen()
{
using (SystemGraphics g = SystemGraphics.FromHdc(GetDC(IntPtr.Zero)))
{
SHChangeNotify(0x8000000, 0x1000, IntPtr.Zero, IntPtr.Zero);
g.DrawLine(new System.Drawing.Pen(System.Drawing.Brushes.Transparent, canvasHeight), 0, 0, canvasWidth, 0);
g.Dispose();
}
}
public void Draw(String message)
{
using (SystemGraphics g = SystemGraphics.FromHdc(GetDC(IntPtr.Zero)))
{
offScreenDC.FillRectangle(backBrush, 0, 0, canvasWidth, canvasHeight);
offScreenDC.DrawString(message, timerFont, timerBrush, 0, 0);
g.DrawImage(offScreenBmp, 0, 0);
g.Dispose();
}
}
public BufferedGraphics Allocate(IntPtr targetDC, Rectangle targetRectangle)
{
return(Allocate(Graphics.FromHdc(targetDC), targetRectangle));
}