device->isWindowActive() and device->isWindowFocused()

tewe76 · Post by **tewe76** » Sun Feb 22, 2009 2:05 pm

What is the difference between device->isWindowActive() and device->isWindowFocused()? Aren't they the same thing? Probably not

Thanks

hybrid · Post by **hybrid** » Sun Feb 22, 2009 6:03 pm

No, one is the subset of the other, but on some windowing systems it might be the same.

tewe76 · Post by **tewe76** » Sun Feb 22, 2009 6:49 pm

Ok, they are quite similar, then. Could you think of a real case in which a window is active but has no focus (or viceversa)? Something to do with Alt+Tab, maybe? Or this is just not possible on Windows, only on Linux or Mac?

vitek · Post by **vitek** » Mon Feb 23, 2009 12:13 am

On Windows the implementation uses GetFocus() and GetActiveWindow(). It seems to me that they are quite different if the window in question is not a top level window.

Travis

tewe76 · Post by **tewe76** » Mon Feb 23, 2009 10:08 am

A "NON top level window" is a window inside another window? Maybe it has something to do with things like tutorial "14.Win32Window"?

Sylence · Post by **Sylence** » Mon Feb 23, 2009 10:13 am

A top-level-window is a window like the task manager that always stays on top of other windows even if they have the focus.

tewe76 · Post by **tewe76** » Mon Feb 23, 2009 11:40 am

Ah, i thought that was an "always-on-top", not a "top-level-window". Anyway, i'm afraid this discussion is going nowhere

DtD · Post by **DtD** » Tue Feb 24, 2009 3:11 am

In Windows, everything is a "Window" a button is a window, a text box is a window, a window is a window, etc.

GetFocus checks if the Irrlicht View"Window" is in focus, this is not the same as the window that the Irrlich Window is in having focus.

Focus = Mouse and keyboard events go to that object. (EG: Having your cursor in the subject text box as opposed to the message body text box.)
Active = The parent Window is active that that element is in.

Unless you are embedding your Irrlicht Window in another Win32 window instead of letting Irrlicht create one for you, the diffrence is virtually nothing.

~DtD

tewe76 · Post by **tewe76** » Tue Feb 24, 2009 10:54 am

Thank you very much, DtD, a very good explanation