pinvoke.net: Edit: shlwapi.SHLoadIndirectString

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Summary: Extracts the string from the specified resource when given an indirect string (a string beginning with the @ symbol). All other strings copy to the output buffer unaltered.

!!!!C# Signature:
        [DllImport("shlwapi.dll", BestFitMapping = false, CharSet = CharSet.Unicode, ExactSpelling = true, SetLastError = false, ThrowOnUnmappableChar = true)]
        public static extern int SHLoadIndirectString(string pszSource, StringBuilder pszOutBuf, int cchOutBuf, IntPtr ppvReserved);

!!!!VB.NET Signature:
        Public Declare Auto Function SHLoadIndirectString Lib "shlwapi.dll" (ByVal pszSource As String, ByVal pszOutBuf As String, ByVal cchOutBuf As UInteger, ByVal ppvReserved As IntPtr) As UInteger

!!!!User-Defined Types:
None.

!!!!Alternative Managed API:
Do you know one?  Please contribute it!

!!!!Notes:
None.

!!!!Tips & Tricks:
Call Environment.ExpandEnvironmentVariables(path) first if you have a string that contains environment variables.

!!!!Sample Code:
string resourcePath = @"@%SYSTEMROOT%\System32\shell32.dll,-4123";
resourcePath = Environment.ExpandEnvironmentVariables(resourcePath);
StringBuilder outBuff = new StringBuilder();
int result = SHLoadIndirectString(resourcePath, outBuff, -1, IntPtr.Zero);
//SHLoadIndirectString returns S_OK (0) if successful
if(result == 0)
	Console.WriteLine(outBuff.ToString());

!!!!Sample Code2:
string sWin8ManifestString = @"@{C:\Program Files\WindowsApps\Microsoft.Video_6.2.8158.0_x86__8wekyb3d8bbwe\resources.pri?ms-resource://Microsoft.Video/resources/manifestVideoDisplayName}";
StringBuilder outBuff = new StringBuilder(1024);
int result = SHLoadIndirectString(sWin8ManifestString, outBuff, outBuff.Capacity, IntPtr.Zero);

Documentation: SHLoadIndirectString@msdn on MSDN