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07.12.2008 at 11:40AM PDT, ID: 23559877
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8.6

Call proc2 from proc1, and return to mainloop instead of proc2

Asked by bryan7 in Delphi Programming

Is there any way (without using a Timer or threaded procedures) to call a procedure from within another, while changing the callback to the main app loop?

I'm using timers for this, to avoid callbacks to procs that no longer exist or calling the same proc twice while still inside it. It works but I wonder if there's a better way.Start Free Trial 
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// example
 
procedure Form1.proc1;
begin
 if a = 1 then
 begin
  Form2.proc2;
--> // form2.proc2 destroys form1, then tries to return here, but since this doesn't exist anymore there is an exception/av  
  Exit;
 end;
 
// some more code
end;
 
procedure Form2.proc2;
begin
 // some code here that destroys Form1;
end;
[+][-]07.12.2008 at 03:56PM PDT, ID: 21990619

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[+][-]07.12.2008 at 05:05PM PDT, ID: 21990802

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[+][-]07.12.2008 at 10:23PM PDT, ID: 21991385

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About this solution

Zone: Delphi Programming
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Solution Provided By: Geert_Gruwez
Participating Experts: 2
Solution Grade: A
 
 
[+][-]07.12.2008 at 10:45PM PDT, ID: 21991420

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[+][-]07.12.2008 at 11:13PM PDT, ID: 21991471

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[+][-]07.12.2008 at 11:46PM PDT, ID: 21991517

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[+][-]07.13.2008 at 06:19AM PDT, ID: 21992414

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