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Merge pull request #21856 from LaurentBerger:I21853

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Try to solve I21853 mouse wheel problem with GTK3
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OpenCV Pushbot 2022-04-29 18:18:02 +00:00 committed by GitHub
commit 039f3d01a0
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modules/highgui/src/window_gtk.cpp
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@ -1831,7 +1831,7 @@ static gboolean icvOnMouse( GtkWidget *widget, GdkEvent *event, gpointer user_da
#if defined(GTK_VERSION3_4)
// NOTE: in current implementation doesn't possible to put into callback function delta_x and delta_y separately
double delta = (event->scroll.delta_x + event->scroll.delta_y);
cv_event = (event->scroll.delta_y!=0) ? CV_EVENT_MOUSEHWHEEL : CV_EVENT_MOUSEWHEEL;
cv_event = (event->scroll.delta_x==0) ? CV_EVENT_MOUSEWHEEL : CV_EVENT_MOUSEHWHEEL;
#else
cv_event = CV_EVENT_MOUSEWHEEL;
#endif //GTK_VERSION3_4