c# - 清除wpf中的内存

Question

我正在做一个项目，我正在从 kinect 捕获帧并对它们进行一些实时处理，我需要显示位图，所以我将它们转换为 bmapsource 并传递给 image.source:

Bitmap bmap = new Bitmap(640, 480, System.Drawing.Imaging.PixelFormat
                                                     .Format24bppRgb);

BitmapSource bmapSource= System.Windows.Interop.Imaging.
  CreateBitmapSourceFromHBitmap(bmap.GetHbitmap(),IntPtr.Zero, Int32Rect.Empty, 
                                BitmapSizeOptions.FromEmptyOptions());
image.source = bmapSource;

但是当我在 2 分钟后处理 15FPS 时，我得到了这部分的错误“内存不足”。无论如何要在每个过程后清除内存？或者有没有其他方法可以在 wpf 中显示 bmap？

提前致谢:)

Answer 1

试试这个:

            [System.Runtime.InteropServices.DllImport("gdi32.dll")]
            public static extern bool DeleteObject(IntPtr hObject);
            IntPtr bmp;
{
                if (bmp != null)
                {
                    DeleteObject(bmp);
                }
                Bitmap bmap = new Bitmap(640, 480, System.Drawing.Imaging.PixelFormat
                                                         .Format24bppRgb);
                bmp = bmap.GetHbitmap();
                BitmapSource bmapSource = System.Windows.Interop.Imaging.
                  CreateBitmapSourceFromHBitmap(bmp, IntPtr.Zero, Int32Rect.Empty,
                                                BitmapSizeOptions.FromEmptyOptions());
                bmap.Dispose();
                bmap = null;

                image.Source = bmapSource;
}