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Get a Registry string value as a CString, MFC. Examples to get version of browsers.

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RegGetValue apparently isn't available in XP SP2. I tried and got an error. MSDN implied it wasn't available.

Example usage to get versions of browsers:

GetRegString( HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Internet Explorer", "Version" );

GetRegString( HKEY_LOCAL_MACHINE, "Software\\Mozilla\\Mozilla Firefox", "CurrentVersion" );

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  1. // Get Registry string value.
  2. // Example usage:
  3. //   GetRegString( HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Internet Explorer", "Version" );
  4. //   GetRegString( HKEY_LOCAL_MACHINE, "Software\\Mozilla\\Mozilla Firefox", "CurrentVersion" );
  5. CString GetRegString( HKEY hKeyArg, LPCSTR keyNameArg, LPCSTR valNameArg )
  6. {
  7.    CString s;
  8.    CRegKey k;
  9.    k.Open( HKEY_LOCAL_MACHINE, keyNameArg );
  10.    ULONG len = 255;
  11.    k.QueryStringValue( valNameArg, s.GetBufferSetLength( len ),  &len );
  12.    s.ReleaseBuffer();
  13.    return s;
  14. }

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