使用索引從dll中獲取文本

Question

如何從使用索引的mssvp.dll和themeui.dll等windows dll獲取字符串？ 在註冊表或主題文件中，有一些字符串（如主題中的DisplayName）指向一個dll和一個索引號，而不是真實的文本。例如我有： DisplayName = @％SystemRoot％\ System32 \ themeui.dll，-2106在Windows主題文件中。那麼，如何使用C＃和.Net 4.0從那些DLL中檢索真正的字符串呢？

Answer 1

您需要使用的P/Invoke：

/// <summary>Returns a string resource from a DLL.</summary> 
    /// <param name="DLLHandle">The handle of the DLL (from LoadLibrary()).</param> 
    /// <param name="ResID">The resource ID.</param> 
    /// <returns>The name from the DLL.</returns> 
    static string GetStringResource(IntPtr handle, uint resourceId) { 
     StringBuilder buffer = new StringBuilder(8192);  //Buffer for output from LoadString() 

     int length = NativeMethods.LoadString(handle, resourceId, buffer, buffer.Capacity); 

     return buffer.ToString(0, length);  //Return the part of the buffer that was used. 
    } 


    static class NativeMethods { 
     [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true, BestFitMapping = false, ThrowOnUnmappableChar = true)] 
     internal static extern IntPtr LoadLibrary(string lpLibFileName); 

     [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true, BestFitMapping = false, ThrowOnUnmappableChar = true)] 
     internal static extern int LoadString(IntPtr hInstance, uint wID, StringBuilder lpBuffer, int nBufferMax); 

     [DllImport("kernel32.dll")] 
     public static extern int FreeLibrary(IntPtr hLibModule); 
    }