public enum HitTestThemeBackgroundCode : ushort

Public Enum HitTestThemeBackgroundCode As UShort

public extern static Int32 HitTestThemeBackground(IntPtr hTheme, IntPtr hdc, int iPartId, int iStateId, UInt32 dwOptions, ref RECT pRect, IntPtr hrgn, POINT ptTest, out HitTestThemeBackgroundCode code);

    hrgn As IntPtr, ptTest As POINT, ByRef code As HitTestThemeBackgroundCode) As Int32