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| author | Tim Janik <timj@gimp.org> | 1998-02-11 00:40:20 +0000 |
|---|---|---|
| committer | Tim Janik <timj@src.gnome.org> | 1998-02-11 00:40:20 +0000 |
| commit | ed848ac41e726b2ca27ccdf474f66def61a7f9e5 (patch) | |
| tree | f764a207c04e6db43c723b94319a50ce6c07db23 /docs/refcounting.txt | |
| parent | 2090cc650c7d1c391f1d78d85469b5589982f790 (diff) | |
| download | gtk+-ed848ac41e726b2ca27ccdf474f66def61a7f9e5.tar.gz | |
backed out the section "Gnits to care about". new file, kinda developers
Wed Feb 11 00:18:31 1998 Tim Janik <timj@gimp.org>
* docs/refcounting.txt: backed out the section "Gnits to care about".
* docs/developers.txt: new file, kinda developers FAQ.
Diffstat (limited to 'docs/refcounting.txt')
| -rw-r--r-- | docs/refcounting.txt | 26 |
1 files changed, 6 insertions, 20 deletions
diff --git a/docs/refcounting.txt b/docs/refcounting.txt index aa8823e225..82817d5c41 100644 --- a/docs/refcounting.txt +++ b/docs/refcounting.txt @@ -35,6 +35,10 @@ ref_count is updated accordingly. You can call gdk_window_destroy more than once on a particular GdkWindow, it will only be destroyed when it hasn't been yet. The ref_count is *always* decremented, tho. Be careful. + +Remark: When writing NO_WINDOW widgets, care should be taken about + proper referencing/unreferencing of the parent's GdkWindow + that is used by the widget. GdkPixmap --------- @@ -301,28 +305,10 @@ void gtk_menu_item_remove_submenu (GtkMenuItem *menu_item); void gtk_option_menu_remove_menu (GtkOptionMenu *option_menu); -Gnits to care about -------------------- - -On another note, though somewhat unrelated, the notification nature -of the signal mechanism might cause events to be emitted that have their -GdkWindow pointer set to NULL. This is due to the fact that certain -events need to be emitted after the real GdkWindow of a widget is not -any longer pertinent. It's up to the application to check for the window -field of the event structure to be != NULL, if it is going to perform -any operations through Gdk calls on it. -Events that a likely to trigger a missing check for the window pointer -currently are (and correspond to the trailing signals): - -GDK_SELECTION_CLEAR GtkWidget::selection_clear_event -GDK_FOCUS_CHANGE GtkWidget::focus_in_event - GtkWidget::focus_out_event - - Initial proposal: - Marius Vollmer <mvo@zagadka.ping.de> -Small fixups, "Taking care of proper referencing" and reference -counting solution for GtkMenus: +Some modifications/additions, "Taking care of proper referencing" and +reference counting solution for GtkMenus: - Tim Janik <timj@gimp.org> |