Getting hWnd from Automation Refnum

[kimdino]

Hi folks,
My Labview application has an OCX as part of its front panel. The OCX display format is toggled by double-clicking on it. I want to be able to make this toggle from the LV app so I thought to use a 'Call Library Function Node' to PostMessage a double-click to the OCX control. A bit clumsy, I know, but it seems the only way to communicate to the OCX.

My question is can I get the OCX's hWnd from its automation refnum? btw I am using Labview 7.0.

Thanks, K.D.Giles

[zou]

OCX is an ActiveX object.  In LabVIEW, you use an ActiveX container to hold ActiveX object.

The ActiveX container is a child window of the front panel window; the ActiveX object window is a child window of ActiveX container, ie. a grandchild window of the front panel window.

You can use FindWindowEx to find the top, the child, and the grand child window.

I don't if you can get the hWnd from automation refnum, unless there is a propety from the OCX.

George Zou

http://gtoolbox.yeah.net