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Re: Modal vs non-modal window [message #12016 is a reply to message #12015]

Mon, 08 October 2007 10:52

mirek is currently offline

mirek
Messages: 14255
Registered: November 2005

Ultimate Member

NeonN wrote on Mon, 08 October 2007 03:14

Thx, i get it now... i wasn't thinking about that (making the dialow window class member). But I'm not very exited opening the window this way because it's IMHO wasting free memmory... the dialog window is allocated all the time when main window is running...

Maybe it's not so important for me because the app i am porting will be using at most 5-10 small dialogs... but anyway, i don't like it at all Sad

Sad

....

Yep, that is, in theory, a valid concern.

Anyway, how big is subdialog? Single widget occupies 100-200 bytes, so it is usually less than 5KB. People tend to waste much more in other parts of code without even knowing Wink

Wink

Another important issue is that you will get access to the dialog, all its settings and values, for free. With new, you would in most cases needed to store a pointer to subdialog anyway.

OTOH, if the memory really is concern, you can use something like

class ClassName {
...
   One< WithLayout<TopWindow> > laySomething;
...
};

void ClassName::InitDlg()
{
...
   laySomething.Create();
...
}

In this case, data will be allocated on demand, while still keeping the advantage of deterministic cleanup.

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[Message index]

		Modal vs non-modal window By: NeonN on Wed, 03 October 2007 20:13
		Re: Modal vs non-modal window By: mrjt on Thu, 04 October 2007 13:08
		Re: Modal vs non-modal window By: NeonN on Thu, 04 October 2007 18:59
		Re: Modal vs non-modal window By: NeonN on Thu, 04 October 2007 20:08
		Re: Modal vs non-modal window By: mrjt on Fri, 05 October 2007 12:09
		Re: Modal vs non-modal window By: NeonN on Fri, 05 October 2007 13:47
		Re: Modal vs non-modal window By: mrjt on Fri, 05 October 2007 14:47
		Re: Modal vs non-modal window By: mirek on Sat, 06 October 2007 18:07
		Re: Modal vs non-modal window By: NeonN on Sun, 07 October 2007 18:33
		Re: Modal vs non-modal window By: mirek on Sun, 07 October 2007 19:37
		Re: Modal vs non-modal window By: NeonN on Sun, 07 October 2007 20:32
		Re: Modal vs non-modal window By: mirek on Sun, 07 October 2007 23:46
		Re: Modal vs non-modal window By: NeonN on Mon, 08 October 2007 09:14
		Re: Modal vs non-modal window By: mirek on Mon, 08 October 2007 10:52
		Re: Modal vs non-modal window By: NeonN on Mon, 08 October 2007 14:58
		Re: Modal vs non-modal window By: mirek on Sat, 06 October 2007 17:59
		Re: Modal vs non-modal window By: exolon on Fri, 05 October 2007 11:55

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