Hello All,

I am trying to send a Windows Message from my VB program to an existing program and I am having problems getting this to work:

In the "APP" program, there is a menu option that when pressed displays a message box. What I would like to do is simulate the slection of that menu option from an external program.

Using that Spy++ program that comes with Visual Studio I think that I trapped the message to being:

(P) WM_COMMAND wNotifyCode:0 (sent from a menu) wID:20007 [wParam:00004E27 lParam:00000000]

Now, in my VB Code I did the following:

hParent = FindWindow(CLng(0), "APP")
bBool = PostMessage(hParent, WM_COMMAND, &H4E27, &H0)

It returns with a value of TRUE but nothing happens, even when I monitor the messages with Spy++ nothing shows up.

If I use the SendMessage API:

SendMessage(hParent, WM_COMMAND, &H4E27, &H0)

Nothing happens, but I get the following in Spy++ everytime I Send The Message
(S) WM_NULL wParam:0012F4EE lParam:0012F4EC
(P) WM_NULL lResult:00000000

Does anyone know how to do this kind of thing?

Thanks!!