| PostMessage(IWin32Window, WindowMessages, IntPtr, IntPtr) | Places (posts) a message in the message queue associated with the thread that created the specified window, and returns without waiting for the thread to process the message. |
| PostMessage(IWin32Window, Int32, IntPtr, IntPtr) | Places (posts) a message in the message queue associated with the thread that created the specified window, and returns without waiting for the thread to process the message. |