Re: Need help again for the clipboard.

From: (wrong string) é Dorta <"René>
Date: Thu, 07 Nov 2002 22:50:48 -0400

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To prevent the use of the Copy operation (Ctrl+C) if nothing is
selected, one must simply link the guard field of your Copy Command
(either in your interactor guard field or in your menu item guard field)
to HostCmds.CopyGuard. Such guard procedure is a general purpose guard
that disables any control linked to it if no selection exist. You don't
need to build another procedure for that purpose.

Guard procedures have a fix signature, you can't change it. They are
global procedures, they are not class methods.

Regards, René Dorta
Universidad de Carabobo. Valencia. Venezuela.
-------------------------------------------------------------

> HECTOR had written:

Hello, BlackBoxers.

Do you remember I wrote a few days ago asking for the implementation of
a clipboard?
... But now I have another question about the ClipBoard. What I want to
do now is
something like a Guard, to prevent that anybody could call to the "Paste

operation (Ctrl+V)" if the clipboard is empty, or also to prevent the
use of
the "Copy operation (Ctrl+C)" if nothing is selected. Looking trough the

BlackBox menus ans modules, I have found "HostCmds" module, that is the
module
used for the cut and copy operations in the Edit menu. I have seen in
the
interface of that HostCmds module many guards, like CopyGuard,
CutGuard... I
suposse that for making my own guards I should have to use these methods

(perhaps re-defining them?). Is that correct?.
...



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Received on Fri Nov 08 2002 - 03:50:48 UTC