HWND_BROADCAST only works with SendMessage.
Try this code instead:
var
f: Integer;
begin
for f := 0 to Screen.FormCount do
Screen.Forms[f].Perform (WM_APPDATACHANGE, 0, 0);
Dennis.
----- Original Message -----
From: "Neven MacEwan" <[EMAIL PROTECTED]>
To: "Multiple recipients of list delphi" <[EMAIL PROTECTED]>
Sent: Tuesday, March 18, 2003 10:28 PM
Subject: [DUG]: PostMessage
> Hi all
>
> In my app I have a whole lot of forms which are embedded in a page control
> of the 'Main Form'
> If one one these forms wants to notify all other forms in the app of a
> change, what is the best way to do it?
>
> Iv'e tried
>
> PostMessage(HWND_BROADCAST, WM_APPDATACHANGE, 0, 0);
>
> but none of the other forms seem to get this message, is this because I
> really only have 1 form in my app?
>
> TIA
>
>
> Regards Neven
> N.K. MacEwan B.E. E&E
> Ph 649 621 0001
> Fax 649 621 0400
> [EMAIL PROTECTED]
>
> --------------------------------------------------------------------------
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