X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=pv%2Fview%2Fviewwidget.hpp;fp=pv%2Fview%2Fviewwidget.hpp;h=65434f65e1720913ab2589f3cfd932fe1c873b46;hb=1f1edc092680e9182be07a760ad03d00b8c5ca06;hp=1d50832b030c7856a9d71ec47a7c48db42fbc579;hpb=803cdac41caf71af9298e3f612468aa522a107d5;p=pulseview.git

diff --git a/pv/view/viewwidget.hpp b/pv/view/viewwidget.hpp
index 1d50832..65434f6 100644
--- a/pv/view/viewwidget.hpp
+++ b/pv/view/viewwidget.hpp
@@ -52,6 +52,11 @@ protected:
 	 */
 	bool accept_drag() const;
 
+	/**
+	 * Returns true if the mouse button is down.
+	 */
+	bool mouse_down() const;
+
 	/**
 	 * Drag the dragging items by the delta offset.
 	 * @param delta the drag offset in pixels.