Unveiling a Boolean value to JavaScript through an ActiveX control in ATL

Currently, I am in the process of creating an ActiveX control using ATL and am facing a challenge when trying to expose a property that takes a Boolean value. Below is my implementation:

STDMETHOD(get_Visible)(VARIANT_BOOL *pVal);
STDMETHOD(put_Visible)(VARIANT_BOOL newVal);

Within my JavaScript function, I attempt to call this using the following code:

MyAxCtl.Visible = true;
//MyAxCtl.Visible = "true";
//MyAxCtl.Visible = "TRUE";
//MyAxCtl.Visible = "VARIANT_TRUE";
//MyAxCtl.Visible = -1;
//MyAxCtl.Visible = "-1";

Unfortunately, none of these methods seem to work for me. Therefore, I am seeking advice on how to effectively expose a Boolean value from an ATL ActiveX control to JavaScript.

Additionally, if anyone can direct me towards documentation regarding communication between ATL types and JavaScript types, it would be greatly appreciated. I am specifically interested in finding a comprehensive list of ATL types that can be successfully exposed to JavaScript.

Thank you in advance, Shupining

javascriptc++activexatl

Answer №1

Your code contains the correct STDMETHOD's and the proper JavaScript call for a Boolean is to set it to true.

There doesn't appear to be a case issue with the code you provided, but make sure to use "Visible" instead of "visisble".

When you are debugging, are you seeing the ActiveX call being executed?

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