# How to draw multiple vtkImageTracerWidget using left mouse button through interaction?

**URL:** https://discourse.vtk.org/t/how-to-draw-multiple-vtkimagetracerwidget-using-left-mouse-button-through-interaction/15334
**Category:** Support
**Created:** [March 4, 2025, 6:24am UTC](https://discourse.vtk.org/t/how-to-draw-multiple-vtkimagetracerwidget-using-left-mouse-button-through-interaction/15334 "2025-03-04T06:24:12Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![SeanHan](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/s/6f9a4e/32.png) [@SeanHan](https://discourse.vtk.org/u/SeanHan)
#### Post date: [March 4, 2025, 6:24am UTC](https://discourse.vtk.org/t/how-to-draw-multiple-vtkimagetracerwidget-using-left-mouse-button-through-interaction/15334/1 "2025-03-04T06:24:12Z")

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A single vtkImageTracerWidget is easy to draw, after that left down button event on the view port will be blocked by the 1st vtkImageTracerWidget drawn on the view. Who can tell me how to modify vtkImageTracerWidget or how to draw another vtkImageTracerWidget?