private void TipCapture()
{
IntPtr handle = Handle;
if (handle == IntPtr.Zero)
{
return;
}
RECT rect = new RECT();
NativeMethodsToop.GetWindowRect(handle, ref rect);
Size size = new Size(
rect.Right - rect.Left,
rect.Bottom - rect.Top);
_backDc = new ImageDc(size.Width, size.Height);
IntPtr pD = NativeMethodsToop.GetDesktopWindow();
IntPtr pH = NativeMethodsToop.GetDC(pD);
NativeMethodsToop.BitBlt(
_backDc.Hdc,
0, 0, size.Width, size.Height,
pH, rect.Left, rect.Top, 0xCC0020);
NativeMethodsToop.ReleaseDC(pD, pH);
}
protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
if (disposing)
{
if (_backDc != null)
{
_backDc.Dispose();
_backDc = null;
}
if (!_titleFont.IsSystemFont)
{
_titleFont.Dispose();
}
_titleFont = null;
_image = null;
_colorTable = null;
}
}
