非托管内存泄漏 [英] Unmanaged Memory leak

问题描述

我有我使用它使用的BitmapSource的WPF应用程序，但我需要做一些操作
但我需要做System.Drawing.Bitmaps的一些操作。

I have am using a WPF application which uses BitmapSource but I need to do some manipulation but I need to do some manipulation of System.Drawing.Bitmaps.

内存使用的应用增加，而它运行。

The memory use of the application increases while it runs.

我已经收窄内存泄漏这个code：

I have narrowed down the memory leak to this code:

private BitmapSource BitmaptoBitmapsource(System.Drawing.Bitmap bitmap)
{
            BitmapSource bms;
            IntPtr hBitmap = bitmap.GetHbitmap();
            BitmapSizeOptions sizeOptions = BitmapSizeOptions.FromEmptyOptions();
            bms = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(hBitmap, IntPtr.Zero, Int32Rect.Empty, sizeOptions);
            bms.Freeze();
            return bms;
}

我认为这是托管内存没有被妥善处理，但我似乎无法找到反正做手工的。在此先感谢您的帮助！

I assume it is the unmanaged memory not being disposed of properly, but I cannot seem to find anyway of doing it manually. Thanks in advance for any help!

亚历

推荐答案

您需要调用 DeleteObject的（...）在 HBITMAP 。参见：<一href=\"http://msdn.microsoft.com/en-us/library/1dz311e4.aspx\">http://msdn.microsoft.com/en-us/library/1dz311e4.aspx

private BitmapSource BitmaptoBitmapsource(System.Drawing.Bitmap bitmap)
{
    BitmapSource bms;
    IntPtr hBitmap = bitmap.GetHbitmap();
    BitmapSizeOptions sizeOptions = BitmapSizeOptions.FromEmptyOptions();
    bms = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(hBitmap, 
        IntPtr.Zero, Int32Rect.Empty, sizeOptions);
    bms.Freeze();

    // NEW:
    DeleteObject(hBitmap);

    return bms;
}

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