protected override void OnPaint(PaintEventArgs e)
{
using (GDIOffscreenBitmap hBitmapOffscreen = new GDIOffscreenBitmap(e.Graphics, ClientSize.Width, ClientSize.Height))
{
using (Brush backBrush = new SolidBrush(BackColor))
{
hBitmapOffscreen.Graphics.FillRectangle(backBrush, ClientRectangle);
}
MyTextRenderer.DrawText(hBitmapOffscreen.Graphics, text, Font, new Point(), ForeColor);
using (GDIRegion gdiRgnClip = new GDIRegion(e.Graphics.Clip.GetHrgn(e.Graphics)))
{
using (GraphicsHDC hDC = new GraphicsHDC(e.Graphics))
{
// Graphics/GDI+ doesn't pass clip region through so we have to reset it explicitly
GDI.SelectClipRgn(hDC, gdiRgnClip);
bool f = GDI.BitBlt(
hDC,
0,
0,
hBitmapOffscreen.Width,
hBitmapOffscreen.Height,
hBitmapOffscreen.HDC,
0,
0,
GDI.SRCCOPY);
}
}
}
base.OnPaint(e);
}
public virtual void SetWindowRegion(GDIRegion aRegion)
{
RegionCombineType retValue = (RegionCombineType)User32.SetWindowRgn(Handle, aRegion.DangerousGetHandle(), true);
}
