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Solved: How to use WhenCancel callback for DropList [message #39040]

Sat, 09 February 2013 11:14

hmasr
Messages: 8
Registered: January 2013

Promising Member

How to use the WhenCancel callback for the DropList.GetList(). Or any other way to detect that the user canceled the selection (by pressing cancel or clicking outside the dropped list)
I tried the following in the DropList subclass:

This->GetList().WhenCancel=THISBACK(OnCancelSelect);

But it is giving error.
Appreciate any help with example if possible
Thanks in advance

[Updated on: Sun, 10 February 2013 08:34]

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Re: How to use WhenCancel callback for DropList [message #39044 is a reply to message #39040]

Sat, 09 February 2013 12:40

mirek
Messages: 14291
Registered: November 2005

Ultimate Member

void CancelPrompt()
{
	Exclamation("Canceled");
}

GUI_APP_MAIN
{
	DropList list;
	list.ListObject().WhenCancel = callback(CancelPrompt);
	TopWindow win;
	win.Add(list.HSizePos().TopPos(0, Ctrl::STDSIZE));
	list.Add("Something");
	win.Run();
}

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Solved: How to use WhenCancel callback for DropList [message #39048 is a reply to message #39044]

Sun, 10 February 2013 08:32

hmasr
Messages: 8
Registered: January 2013

Promising Member

So it is the ListObject not the GetList Rolling Eyes

Many thanks and appreciate the prompt response.

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