internal static void AlphaBlendImage(IntPtr hdcDst, Image image, Rectangle bounds, int alpha, bool srcAlpha)
{
int width = image.Width;
int weight = image.Height;
using (Graphics imageG = Graphics.FromImage(image))
{
IntPtr hdcSrc = imageG.GetHdc();
GdiExt.BlendFunction blendFunction = new GdiExt.BlendFunction();
blendFunction.BlendOp = (byte)GdiExt.BlendOperation.AC_SRC_OVER;
blendFunction.BlendFlags = (byte)GdiExt.BlendFlags.Zero;
blendFunction.SourceConstantAlpha = (byte)alpha;
blendFunction.AlphaFormat = srcAlpha ? (byte)1 : (byte)0;
AlphaBlend(hdcDst, bounds.X, bounds.Y, bounds.Width, bounds.Height, hdcSrc, 0, 0, width, weight, blendFunction);
imageG.ReleaseHdc(hdcSrc);
}
}
internal static void AlphaBlendImage(IntPtr hdcDst, Image image, Rectangle bounds, int alpha, bool srcAlpha)
{
int width = image.Width;
int weight = image.Height;
using (Graphics imageG = Graphics.FromImage(image))
{
IntPtr hdcSrc = imageG.GetHdc();
GdiExt.BlendFunction blendFunction = new GdiExt.BlendFunction();
blendFunction.BlendOp = (byte)GdiExt.BlendOperation.AC_SRC_OVER;
blendFunction.BlendFlags = (byte)GdiExt.BlendFlags.Zero;
blendFunction.SourceConstantAlpha = (byte)alpha;
blendFunction.AlphaFormat = srcAlpha ? (byte)1 : (byte)0;
AlphaBlend(hdcDst, bounds.X, bounds.Y, bounds.Width, bounds.Height, hdcSrc, 0, 0, width, weight, blendFunction);
imageG.ReleaseHdc(hdcSrc);
}
}
