HitTestThemeBackground

C# Signature:

[DllImport("uxtheme", ExactSpelling=true)]
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);

VB .NET Signature:

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