If @Unicode Then
$pSendMessage = DllCall("kernel32.dll", "ptr", "GetProcAddress", "ptr", $gh_DllCallBack_hUser32, "str", "SendMessageW")
If @error Then Return SetError(3, 0, 0)
Else
$pSendMessage = DllCall("kernel32.dll", "ptr", "GetProcAddress", "ptr", $gh_DllCallBack_hUser32, "str", "SendMessageA")
If @error Then Return SetError(3, 0, 0)
EndIf