static extern int SetBkMode(IntPtr hdc, int iBkMode);

Public Function SetBkMode(hdc As IntPtr, <MarshalAs(UnmanagedType.I4)>iBkMode As gdiBkMode) As Integer

Public Declare Function SetBkMode Lib "gdi32.dll" _

[DllImport ("coredll.dll", EntryPoint="SetBkMode", SetLastError=true)]

private static extern int SetBkModeCE(IntPtr hdc, BkMode iBkMode);

Declare Function SetBkMode Lib "coredll.dll" (TODO) As TODO

        EMR_SETBKMODE          = 18,