Home » U++ Library support » U++ Callbacks and Timers » manually creating callback
| manually creating callback [message #41865] |
Sat, 01 February 2014 03:30  |
piotr5
Messages: 107
Registered: November 2005
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Experienced Member |
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I get Invalid memory access! with the following code (with and without MT flag):
#include <Core/Core.h>
CoWork cw;
struct delme : public CallbackAction{
virtual void Execute() {}
};
CONSOLE_APP_MAIN
{
delme d;
cw.Do(Callback(&d));
cw.Finish();
}
how does this differ from the callbacks created by the actual generator functions? for example if I instead write
cw.Do(callback(&d,&delme::Execute)) [Updated on: Sat, 01 February 2014 05:12] Report message to a moderator |
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| Re: manually creating callback [message #42013 is a reply to message #41865] |
Mon, 10 February 2014 20:24  |
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mirek
Messages: 14193
Registered: November 2005
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Ultimate Member |
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It has to be allocated on heap
#include <Core/Core.h>
using namespace Upp;
CoWork cw;
struct delme : public CallbackAction{
virtual void Execute() {}
};
CONSOLE_APP_MAIN
{
cw.Do(Callback(new delme));
cw.Finish();
}
(not very U++-ish, but then you are not supposed to do this 
[Updated on: Mon, 10 February 2014 20:24] Report message to a moderator |
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