[vtkusers] Give keyboard focus to a QVTKWidget without "touching" it

[Shakes]

Hi Jesus,

In order to accept keyboard presses, the window needs to be active. The 
only way I see how u can make it active other than clicking is strong 
focus, as u can tab to the window. I guess I don't understand exactly 
why u need to focus on the window automatically. Do you mean u have 
multiple windows and the default window focused not the right one? More 
detail on the window setup would help.

Cheers
Shakes

Jesús Spí­nola wrote:
>
>
> On Jan 16, 2008 11:58 PM, Shakes <Shekhar.Chandra at sci.monash.edu.au 
> <mailto:Shekhar.Chandra at sci.monash.edu.au>> wrote:
>
>     Hi Jesus,
>
>     Qt has something called Strong Focus (click and keyboard focus)
>     option.
>     All u need to do is to set the FocusPolicy to StrongFocus, also
>     there is
>     a help page for keyboard focusing in Qt Documentation. 
>
>
> I've already tried doing that. I've set FocusPolicy to StrongFocus but 
> with no success. I don't know what could be wrong
>
>     Also if you have
>     multiple windows in workspace, then set active window in
>     QWorkspace. If
>     u have multiple windows in general, then setFocus should work if
>     called
>     from the correct spot.
>
>     Hope that helps.
>
>     Cheers
>     Shakes
>
>     Jesús Spí­nola wrote:
>     > Hi,
>     >
>     > I have an application with a main "2D View" based upon a QVTKWidget
>     > and I would like to handle keyboard events to control the
>     interaction.
>     > My problem is that I must click over this QVTKWidget to be aware of
>     > the keyboard events, because until you click, you don't have
>     keyboard
>     > focus.
>     > To avoid this "first-click-to-get-keyboard-focus", I tried to call
>     > QVTKWidget->setFocus() (inherited from QWidget), which seems to
>     be the
>     > trivial solution, but It does nothing and I have to click the
>     > QVTKWidget still to get the focus. I also tried invoking some vtk
>     > events, like *ButtonPressEvent, but with no succeess.
>     >
>     > Maybe I'm missing something or I'm trying to do something
>     impossible,
>     > I don't know, but it would be nice if someone can give me some
>     hint to
>     > find out what I'm doing wrong.
>     >
>     > So, how can I get the focus automatically?
>     >
>     > Thanks in advance!
>     >
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>
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