Help wanted on SIMPLE task

[Seth Manley]

>
>Hi!
>
>I am very new to wx programming and I need help on a simple task.
>
>How do I make a simple selection dragbox (using e.g. OnMouseEvent )  in a 
>graphics window without destroying what's in it?
>I have the "Cross-Platform GUI Programming whith wxWidgets" book, and  I 
>think I have seen the source listing for the method there, but I  just 
>can't seem to find int.
>I have gone thru it several times and failed.
>
>I do not want to paint anything in the graphics window, I just want  to 
>make a flickering frame over the content to select an area to get  input to 
>a zooming in function.
>
>Extremely standard, apparently too simple to be demonstrated in  wxWidgets 
>samples, since I cannot find it there.
>
>Bengt
>

As far as I know, there are no built-in functions to do it.  You'll need to 
implement handlers for the mouse events: EVT_LEFT_DOWN(func) 
EVT_LEFT_UP(func) and also EVT_MOTION(func) at least (SEE wxMouseEvent).  In 
the evt_motion handler, you'll need to erase/repaint the drag-box.

-Seth
http://www.xmlworkbench.com

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