SendMessage is causing script to hang

Question

I am having an issue where the SendMessage() function is causing a script to hang and thus never exiting though it is running the SendMessage like it should (Its task comple

Answer 1

Please add

Add-Type -Assembly UIAutomationClient

and use

public static extern IntPtr PostMessage(int hWnd, UInt32 hMsg, Int32 wParam, Int32 lParam);

or

public static extern IntPtr SendMessage(int hWnd, UInt32 hMsg, Int32 wParam, Int32 lParam);

And the script will no longer crash