Help with PostMessage

Hi all,

I am trying to send commands to game server screen. The game is Blackhawk Down, with the Team Sabre expansion pack.

Right now I am just trying basic things like once the game is running, Send "t" to open the chat window. So far I cannot not get any code to work.

THis will work posting a message to a dos window, but it will not to BHDTS.

VB Code:

Dim nlgameclass As Long
nlgameclass = FindWindow("nlgameclass", vbNullString)
Call PostMessage(nlgameclass, WM_CHAR, Asc("t"), 0&)

I am using the API Spy from Pat of JK's

Any help is greatly appreciated.