diff options
Diffstat (limited to 'documentation/src')
| -rw-r--r-- | documentation/src/common.dox | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/documentation/src/common.dox b/documentation/src/common.dox index 5677bb5e5..ba7c0e583 100644 --- a/documentation/src/common.dox +++ b/documentation/src/common.dox @@ -552,11 +552,10 @@ int xyz_data; button->callback(xyz_callback, &xyz_data); \endcode -\note You cannot delete a widget inside a callback, as the -widget may still be accessed by FLTK after your callback -is completed. Instead, use the Fl::delete_widget() -method to mark your widget for deletion when it is safe -to do so. +It's also possible to use a non-capturing lambda function directly, for example: +``` +button->callback( [](Fl_Widget*, void*) { puts("Hello"); } , nullptr ); +``` Many programmers new to FLTK or C++ try to use a non-static class method instead of a static class method |