我正在尝试将Bitmap (SystemIcons.Question)
转换为BitmapImage
,以便我可以在WPF图像控件中使用它。
我有以下方法将其转换为BitmapSource
,但它返回InteropBitmapImage
,现在的问题是如何将其转换为BitmapImage
。直接演员似乎不起作用。
有人知道怎么做吗?
CODE:
public BitmapSource ConvertToBitmapSource()
{
int width = SystemIcons.Question.Width;
int height = SystemIcons.Question.Height;
object a = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(SystemIcons.Question.ToBitmap().GetHbitmap(), IntPtr.Zero, System.Windows.Int32Rect.Empty, BitmapSizeOptions.FromWidthAndHeight(width, height));
return (BitmapSource)a;
}
返回BitmapImage的属性:(绑定到我的图像控件)
public BitmapImage QuestionIcon
{
get
{
return (BitmapImage)ConvertToBitmapSource();
}
}
答案 0 :(得分:8)
InteropBitmapImage
继承自ImageSource
,因此您可以直接在Image
控件中使用它。您不需要它是BitmapImage
。
答案 1 :(得分:1)
你应该可以使用:
public BitmapImage QuestionIcon
{
get
{
using (MemoryStream ms = new MemoryStream())
{
System.Drawing.Bitmap dImg = SystemIcons.ToBitmap();
dImg.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
System.Windows.Media.Imaging.BitmapImage bImg = new System.Windows.Media.Imaging.BitmapImage();
bImg.BeginInit();
bImg.StreamSource = new MemoryStream(ms.ToArray());
bImg.EndInit();
return bImg;
}
}
}
答案 2 :(得分:0)
public System.Windows.Media.Imaging.BitmapImage QuestionIcon
{
get
{
using (MemoryStream ms = new MemoryStream())
{
System.Drawing.Bitmap dImg = SystemIcons.ToBitmap();
dImg.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
ms.Position = 0;
var bImg = new System.Windows.Media.Imaging.BitmapImage();
bImg.BeginInit();
bImg.StreamSource = ms;
bImg.EndInit();
return bImg;
}
}
}