Hello All,
I was able to get the mouse coordinates when clicking over a
drawing area thanks to the very useful hint of Mr. Glynn Clements.
>Register a callback function on the XmNinputCallback list. The
>function will be passed a pointer to a XmDrawingAreaCallbackStruct:
>
> typedef struct
> {
> int reason;
> XEvent * event;
> Window window;
> } XmDrawingAreaCallbackStruct;
>
>You can get the mouse coordinates from the `event' field.
However, still another problem :-(
How to call a function for example
XtAddCallback (widget, XmNactivateCallback, modifyGraphTask, shell);
when I don't have "widget"? Is there a straight forward way to call it
without the use of XtAddCallback which requires the use of a widget for
which the callback is invoked?
PS:
modifyGraphTask is of type:
void modifyGraphTask ( Widget widget,
Widget shell,
XtPointer call_data);
Thank you for any help.
Regards,
-Ibrahim
