Question

There are two procedures, A1 and A2, which both call function B in their code:

function B: boolean; begin   // do other stuff end;  procedure A1; begin   // do stuff   if b then     ...   // do stuff end;  procedure A2; begin   // do stuff   if b then     A1; // <- how to call A1 'delayed'?   // do stuff end; 

If the condition in A2 is true, procedure A1 must be called, but that would happen while A2 is still running, which I don’t want.

What should happen is: If the condition in A2 is true, then A2 should be finished and after leaving A2 the procedure A1 should be called.

An ugly solution would be to set a timer that calls A1 after a delay that makes sure A2 is finished.

But there must be better ways, right?

EDIT: A1 and A2 in my case are events, so they are not called by code and I cannot just call A1 from a calling procedure after A2 is finished.

Answer 1

Given your constraints it sounds like you want to call PostMessage as the last thing in A2 before returning. The PostMessage parameters should be set up so trigger the A1 event. The only thing to worry about it a race condition, but I’m not sure that’ll be an issue with the windows message queue.