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Diffstat (limited to 'documentation/src/subclassing.dox')
| -rw-r--r-- | documentation/src/subclassing.dox | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/documentation/src/subclassing.dox b/documentation/src/subclassing.dox index 57c004165..4d452ccc1 100644 --- a/documentation/src/subclassing.dox +++ b/documentation/src/subclassing.dox @@ -302,6 +302,16 @@ You must return non-zero if your \p handle() method uses the event. If you return zero, the parent widget will try sending the event to another widget. +For debugging purposes, event numbers can be printed as their actual event names +using the fl_eventnames[] array, e.g.: +\code + #include <FL/names.h> // defines fl_eventnames[] + [..] + int MyClass::handle(int e) { + printf("Event was %s (%d)\n", fl_eventnames[e], e); // e.g. "Event was FL_PUSH (1)" + [..] +\endcode + \section subclassing_drawing Drawing the Widget The \p draw() virtual method is called when FLTK wants |