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Merge pull request #21331 from alalek:issue_21289

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Alexander Alekhin 2021-12-23 20:09:52 +00:00
commit f11ab4c569
1 changed files with 4 additions and 0 deletions
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4
modules/highgui/src/window_gtk.cpp
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@ -1824,6 +1824,10 @@ static gboolean icvOnMouse( GtkWidget *widget, GdkEvent *event, gpointer user_da
}
else if( event->type == GDK_SCROLL )
{
GdkEventScroll* event_scroll = (GdkEventScroll*)event;
pt32f.x = cvFloor(event_scroll->x);
pt32f.y = cvFloor(event_scroll->y);
#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);