public extern static Int32 GetThemeString(IntPtr hTheme, int iPartId, int iStateId, int iPropId, out StringBuilder themeString, int themeStringLength);

Declare Function GetThemeString Lib "uxtheme.dll" (TODO) As TODO

Public Shared Function GetThemeString(hTheme As IntPtr, iPartId As Integer, iStateId As Integer, iPropId As Integer, ByRef themeString As StringBuilder, themeStringLength As Integer) As Int32