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Application->Terminate() ???

Posted on 2000-04-08
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Last Modified: 2010-04-10
Hello i am using Borland Builder 4 and have a problem with 'Application->Terminate()'

I have written some code (i have shown an excerp below). I am trying to terminate the application when a count is equal to 15. At the moment it doesn't work, i have debugged the code, and i have SEEN it perform the Application->Terminate() function, when i have stepped through it, but the program just continues on.

How can this be ? - What am i doing wrong.

Please help

thanx


if (RoadSign[i] == HotSpotNum)
{
sndPlaySound(String("Correct"+String(  Response)+String(".wav")).c_str(),SND_SYNC);

HotSpotList->HotSpot[HotSpotNum->MakeCold();

if (i == 8)
{
HotSpotList = new THotSpotList(this,String("2ndroad.bmp"),3);

Canvas->Draw(0,0,HotSpotList->bmpBackground);
}
else if (i == 15) //Terminate
{
Application->Terminate();
}

//Next sign to guess
sndPlaySound(String(HotSpotList->HotSpot[RoadSign[++i]]->GetText()+
String(".wav")).c_str(),SND_SYNC);
}
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Question by:AntBon
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5 Comments
 
LVL 22

Expert Comment

by:nietod
ID: 2695908
I would guess that teh Terminate() function simply calls PostQuitMessage().  this will post a WM_QUIT to your message queue.  This will cause the application to termiante its message loop and then proceeed tot eh end of  WinMain() in order to terminate the application.  But the termination happens later, when this message is read from the queue.  You need to return to the message loop in order for this to occur.   There are ways to termiante the application immediately, like by callign TerminateProcess(), but that is usually not a good idea.  If possible, you should terminate by ending the message loop and ending main.
0
 

Author Comment

by:AntBon
ID: 2696039
Can you possible show me what you mean. I think i understand, after the Terminate() function, i used to have a
Application->ProcessMessages(), but this made no difference.

How can i return to the message loop then, so i can terminate from there.

thanks
0
 
LVL 22

Expert Comment

by:nietod
ID: 2696088
The code that is calling

Application->Terminate()

is probably called from the message loop or from something that is called from the message loop.  (Right?  this code is probably (ultimately) called from a message, like a mouse press or a command, right) So you just need to return (and return and return if needed)  to the message loop.

Note I am assuming that this is what Termiante() does, it is a reasonable assumption, but still an assumption.
0
 

Author Comment

by:AntBon
ID: 2696143
Thanks you were correct, i simply added a return statement after the terminate() statement, and it works fine.

I am not used to Windows programming, i am doing a course - and have an assignment to hand it.

So i may be asking more questions later on ...Hope you dont mind

anyway thanks again

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LVL 22

Accepted Solution

by:
nietod earned 75 total points
ID: 2696236
Thanks,

Is this a windows programming course?  If not you probably don't need to be doing any of this.  Most non-windows based courses don't want you to teal with any windows speicifc GUI designs, like this.   Usually you would write a standard text-based (console) program.
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