public static extern nint PostMessage(nint hWnd, uint wMsg, nint wParam, nint lParam)

Public Shared Function PostMessage(hWnd As IntPtr, wMsg As UInteger, wParam As IntPtr, lParam As IntPtr) As IntPtr

public static extern int PostMessage(nint hWnd, int wMsg, nint wParam, nint lParam)

Public Shared Function PostMessage(hWnd As IntPtr, wMsg As Integer, wParam As IntPtr, lParam As IntPtr) As Integer

public static int PostMessage(nint hWnd, int msg, int wParam, Point pt)

Public Shared Function PostMessage(hWnd As IntPtr, msg As Integer, wParam As Integer, pt As Point) As Integer