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freelibrary (kernel32)
 
.
Summary

C# Signature:

[DllImport("kernel32.dll", SetLastError=true)]
[return: MarshalAs(UnmanagedType.Bool)] /* unnecessary, isn't it? */
static extern bool FreeLibrary(IntPtr hModule);

VB.NET Signature:

<DllImport("kernel32.dll", SetLastError:=True, EntryPoint:="FreeLibrary")> _
Public Shared Function FreeLibrary(ByVal hModule As IntPtr) As Boolean
End Function

VB Signature:

Private Declare Function FreeLibrary Lib "kernel32" (ByVal hLibModule As Long) As Long

User-Defined Types:

None.

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

    private void ReadFile() {
      mFiles.Clear();
      hExe = LoadLibrary(mFileName);
      if (hExe.ToInt32() == 0) {
    throw new Win32Exception(Marshal.GetLastWin32Error());
      }
      GCHandle gch = GCHandle.Alloc(mFiles); //convert object to handle
      if (EnumResourceNames(hExe, "FILE", cb, (IntPtr)gch) == false) {
    gch.Free();
    throw new ApplicationException("Error reading files in the installer");
      }
      gch.Free();
      if (FreeLibrary(hExe) == false) {
    throw new Win32Exception(Marshal.GetLastWin32Error());
      }
    }

Alternative Managed API:

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Documentation
FreeLibrary on MSDN

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