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authorMatthias Melcher <github@matthiasm.com>2024-01-29 11:43:34 +0100
committerGitHub <noreply@github.com>2024-01-29 11:43:34 +0100
commitd9612e3cc713247f8f1e8af10a39fa2c763b588d (patch)
tree98cd03c25b6938a0459ea8f541adffc30f94b15c /src/Fl_Text_Display.cxx
parentfa8799bcef0da392fd344ed019154bd84ccd3e5b (diff)
RFC: Different approach to Editor tutorial (see #189) (#883)
Update test/editor code and tutorial (#189, #883) Different, sequential approach to Editor tutorial Co-authored-by: Albrecht Schlosser <albrechts.fltk@online.de>
Diffstat (limited to 'src/Fl_Text_Display.cxx')
-rw-r--r--src/Fl_Text_Display.cxx3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/Fl_Text_Display.cxx b/src/Fl_Text_Display.cxx
index ff4649ee9..c91c98a79 100644
--- a/src/Fl_Text_Display.cxx
+++ b/src/Fl_Text_Display.cxx
@@ -448,7 +448,8 @@ void Fl_Text_Display::highlight_data(Fl_Text_Buffer *styleBuffer,
mHighlightCBArg = cbArg;
mColumnScale = 0;
- mStyleBuffer->canUndo(0);
+ if (mStyleBuffer)
+ mStyleBuffer->canUndo(0);
damage(FL_DAMAGE_EXPOSE);
}