/// <summary>
/// Bitblt extension for the graphics object
/// </summary>
/// <param name="target"></param>
/// <param name="source"></param>
public static void BitBlt(this Graphics target, Bitmap sourceBitmap, Rectangle source, Point destination, CopyPixelOperation rop)
{
using (SafeDeviceContextHandle targetDC = target.GetSafeDeviceContext()) {
using (SafeCompatibleDCHandle safeCompatibleDCHandle = CreateCompatibleDC(targetDC)) {
using (SafeHBitmapHandle hBitmapHandle = new SafeHBitmapHandle(sourceBitmap.GetHbitmap())) {
using (safeCompatibleDCHandle.SelectObject(hBitmapHandle)) {
BitBlt(targetDC, destination.X, destination.Y, source.Width, source.Height, safeCompatibleDCHandle, source.Left, source.Top, rop);
}
}
}
}
}
/// <summary>
/// StretchBlt extension for the graphics object
/// Doesn't work?
/// </summary>
/// <param name="target"></param>
/// <param name="source"></param>
public static void StretchBlt(this Graphics target, Bitmap sourceBitmap, Rectangle source, Rectangle destination)
{
using (SafeDeviceContextHandle targetDC = target.getSafeDeviceContext()) {
using (SafeCompatibleDCHandle safeCompatibleDCHandle = CreateCompatibleDC(targetDC)) {
using (SafeHBitmapHandle hBitmapHandle = new SafeHBitmapHandle(sourceBitmap.GetHbitmap())) {
using (SafeSelectObjectHandle selectObject = safeCompatibleDCHandle.SelectObject(hBitmapHandle)) {
StretchBlt(targetDC, destination.X, destination.Y, destination.Width, destination.Height, safeCompatibleDCHandle, source.Left, source.Top, source.Width, source.Height, CopyPixelOperation.SourceCopy);
}
}
}
}
}
/// <summary>
/// Get a SafeHandle for the GetHdc, so one can use using to automatically cleanup the devicecontext
/// </summary>
/// <param name="graphics"></param>
/// <returns>SafeDeviceContextHandle</returns>
public static SafeDeviceContextHandle GetSafeDeviceContext(this Graphics graphics)
{
return(SafeDeviceContextHandle.fromGraphics(graphics));
}