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Allow widget callback to be NULL (STR #2835).

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git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@11811 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Albrecht Schlosser
2016-07-15 19:23:16 +00:00
parent f40cb28308
commit 6e503e90a0
2 changed files with 2 additions and 0 deletions
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CHANGES
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@@ -99,6 +99,7 @@ CHANGES IN FLTK 1.3.4 RELEASED: ??? ?? 2016
Bug fixes Bug fixes
- Allow widget callback to be NULL, i.e. no callback (STR #2835).
- Fixed Fl_Help_View buffer overflow (STR #3275). - Fixed Fl_Help_View buffer overflow (STR #3275).
- Fl_Browser now correctly adjusts its scrollbars when the default - Fl_Browser now correctly adjusts its scrollbars when the default
text size is changed with textsize(int) (STR #3057). text size is changed with textsize(int) (STR #3057).
src/Fl_Widget.cxx
+1
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@@ -343,6 +343,7 @@ Fl_Widget::copy_label(const char *a) {
*/ */
void void
Fl_Widget::do_callback(Fl_Widget* o,void* arg) { Fl_Widget::do_callback(Fl_Widget* o,void* arg) {
if (!callback_) return;
Fl_Widget_Tracker wp(this); Fl_Widget_Tracker wp(this);
callback_(o,arg); callback_(o,arg);
if (wp.deleted()) return; if (wp.deleted()) return;