public static Bitmap GetBitmapForIcon(Icon icon)
{
using (IconInfo iconInfo = new IconInfo(icon))
{
if (!iconInfo.Info.fIcon)
return null; // this is a cursor!
if (iconInfo.BitmapStruct.bmBitsPixel!=32)
return Bitmap.FromHicon(icon.Handle); // no alpha blending, so use regular .Net
Bitmap iconBitmap = Bitmap.FromHbitmap(iconInfo.Info.hbmColor);
// get broken bitmap (broken - pixelformat doesn't specify alpha channel, even though the alpha data is there),
// copy to a new bitmap with a healthy (includes the alpha channel) pixelformat
Bitmap transparentBitmap;
using (LockedBitMap lockedBitmap = new LockedBitMap(iconBitmap))
{
transparentBitmap = new Bitmap(lockedBitmap.Data.Width, lockedBitmap.Data.Height, lockedBitmap.Data.Stride, PixelFormat.Format32bppArgb, lockedBitmap.Data.Scan0);
}
return transparentBitmap;
}
}
public static Bitmap GetBitmapForIcon(Icon icon)
{
using (IconInfo iconInfo = new IconInfo(icon))
{
if (!iconInfo.Info.fIcon)
{
return(null); // this is a cursor!
}
if (iconInfo.BitmapStruct.bmBitsPixel != 32)
{
return(Bitmap.FromHicon(icon.Handle)); // no alpha blending, so use regular .Net
}
Bitmap iconBitmap = Bitmap.FromHbitmap(iconInfo.Info.hbmColor);
// get broken bitmap (broken - pixelformat doesn't specify alpha channel, even though the alpha data is there),
// copy to a new bitmap with a healthy (includes the alpha channel) pixelformat
Bitmap transparentBitmap;
using (LockedBitMap lockedBitmap = new LockedBitMap(iconBitmap))
{
transparentBitmap = new Bitmap(lockedBitmap.Data.Width, lockedBitmap.Data.Height, lockedBitmap.Data.Stride, PixelFormat.Format32bppArgb, lockedBitmap.Data.Scan0);
}
return(transparentBitmap);
}
}
