Event handlers MouseUp and Mouse down from pdf view control

Technical Support Apryse SDK
1

I am trying to fire some code when the mouse is press down and release while viewing a PDF file (aka while the mouse is over the custom control (PDFViewCtrl) but every time I do that I get a Null ReferenceException.

Are there any examples that demonstrate how to set this up properly?

2

Is this question for PDFViewCtrl (WinForms), or PDFViewWPF (WPF)? You mention PDFViewCtrl, but previously you were asking about PDFViewWPF.

We also need a clearer description of what you are trying to do. Also, what is Null?

Any code or screen shots would help.