   WH_SYSMSGFILTER = 6
   WH_CALLWNDPROCRET = 12
   [_WH_MAX] = 14
End Enum
Public Enum EHTHookErrorConstants
   eehHookBase = vbObjectError + 1048
End Enum

Public Type POINTAPI
   X As Long
   Y As Long
End Type
Public Type Msg '{     /* msg */
   hWnd As Long     '\\ The window whose Winproc will receive the message
   Message As Long  '\\ The message number
   wParam As Long
   lParam As Long
   time As Long     '\\ The time the message was posted
   pt As POINTAPI   '\\ The cursor position in screen co