Re: CDK keybinding

[Thomas Dickey]

On Tue, 17 Mar 2009, TheLonelyStar wrote:

> Hi,
>
> I am currently learning CDK from the examples (as suggested in this forums).
> I have a "main window" wich is mainly a selection widget.
> Now I want that when the "n" key is pressed, a dialog for a new item for the
> selection pops up.
> So I have to to rebind the "n" key for the selection window. I see to
> options:
>
> 1. Bind the "n" key in a way, that the activateCDKSelection exits and tells
> me in its return value, that the n key was the reaseon.
> Problem: How do I bind a key that exits the activate function and how do I
> set the return value?

bindings in CDK make it do a callback (to a given function).
The callback functions get the object pointer, and the key.

CDK maintains an exit type - but it's not the key value.
It's vERROR, vNORMAL, etc., which correspond by default to ERR, newline, 
etc.  The default is vEARLY_EXIT, which keeps the widget looping.

> 2. Bind the "n" key to open the dialog and insert the new item.
> Problem: How can I insert an item into a selection without recreating it
> (and while activateCDKSelection is runnig).

see setCDKSelectionItems and setCDKSelectionChoice

> What would you do?

(I'd read the library code as a supplement to reading the manpages)

--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net