a87
Subj : Re: want to execute code as soon as application is run
To   : borland.public.cpp.borlandcpp
From : Simon Hearn
Date : Wed Jul 20 2005 05:29 am


In case you're interested I've solved the problem and I thought I'd post it here (I hate it when you search for a problem on a forum, find that someone else has had the same thing but not bothered to put thier solution down, really annoying!)

All I did was to replace the "this.Destroy()" comand I was using to close the window with "PostQuitMessage(WM_QUIT)". Which I'm guessing (I don't have much experience with messages etc) adds a the quit message to the window, so when it's finished doing whatever it is it's doing, it executes the WM_QUIT command and closes with no fuss.

Thanks to Jogy for the tip.

Simon



"Simon Hearn" <simonhearn@gmail.com> wrote:
>
>Thanks for this, I'll give it a go and get back to you soon.
>
>Simon
>
>
>
>"Ed Mulroy" <dont_email_me@bitbuc.ket> wrote:
>>As I remember it, the SetupWindow function runs when the WM_CREATE message 
>>is received, during the CreateWindow call.  That is before the window is 
>>completely constructed so before it is displayed.
>>
>>Programs that need to do something immediately following the end of the 
>>window creation often do it by performing a PostMessage to the same window 
>>as the last item in WM_CREATE.  That makes it the last item in the 
>>SetupWindow function.
>>
>>The message used depends upon the application.  Many don't use a timer so 
>>just post a WM_TIMER message and let the code respond to it.  Others call 
>>RegisterWindowMessage and use that value for the message.  Still others use 
>>something like WM_USER+100 for the message.
>>
>>.  Ed
>>
>>
>>> Simon Hearn wrote in message
>>> news:42dd3fc2$1@newsgroups.borland.com...
>>>
>>> I'm trying to execute a piece of code that displays a dialog
>>> box with two buttons, on of which is cancel - exits the
>>> program. I need this code to execute as soon as the application
>>> in run and the window is displayed.
>>>
>>> At the moment the code is in the SetupWindow() function,
>>> which works ok. But it's actually run before the window is fully
>>> created. So when I hit cancel, the application quits, but I get
>>> an error (an exception from the TXWindow function) saying
>>> the window was not created properly (because I destroyed it
>>> before it was fully created).
>>>
>>> So, I either need to stop this error message appearing thus
>>> achieving a quiet exit. Or I need to place the code after the
>>> window is fully created.
>>>
>>> I don't know how to do either of these so can anyone help
>>> me out?
>>
>>
>

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