ActiveX issue in PowerPoint

We have written an ActiveX control using C# to use it in Microsoft PowerPoint. The control has following Title: 'Test Viewer'. When I place the control in PowerPoint in edit mode, I see the title in control. But when I print the slide, it show me a big "X" in the print output. Print preview looks proper. I tried using 'PrintDocument' and 'PrintPageEventHandler' in the code but that doesn't seem to hit when printing the slide in PowerPoint edit mode. Can someone throw pointers how to achieve this? Is 开发者_如何学JAVAthe data in control need to be communicated in some format?