setProgram doesn't work in VST SDK 2.4?

[SeerXillion]

I find the 'adelay' in VST DSK 2.4 cannot support setProgram!

I try to test whether the method 'setProgram' is executed when I select a program in the program list.

At the end of the method "void ADelay::setProgram (long program)", I insert the following line:

MessageBox(NULL,"!!!","",0);

Because I think if the method is executed, I would see the message box popupped.

After I update the dll, I see the message popupped during the Nuendo is launching.

Then I insert adelay into an insert slot of an audio track, I see the message too.

But when I select a program from the program list of adelay, I could not see the message any more. (I think it should be poppuped in this condition!!)

Why?
And How can I make it work?

I do the same things in VST DSK 2.3' delay, and I see the message when selecting programs.

[Nomad26]

Hi, change

void ADelay::setProgram(long program)

to

ADelay::setProgram(VstInt32 program)

then it should work..

[SeerXillion]

Oh!

The derived member method is not the same type as its parent class!

[SeerXillion]

Thanks!!

[virtualinsanity]

And what if it doesn't even work in vst 2.3?
The host(Cubase SE3) simply doesn't call it when changing programs, but calls setParameter for all the parameters instead. I thought I understood the principle, but obviously I did not...
Shouldn't setProgram(long program) be called everytime you change your program? Or is "preset" something different?
Thank you, I'm sorry my questions will never end.
Sören