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Editorial Team
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Asked: 2026-05-18T23:24:29+00:00

I have created a VB.NET Class Library that exposes some COM Interop sub routines.

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I have created a VB.NET Class Library that exposes some COM Interop sub routines. These in turn show various forms that are contained within the Class Library. When the forms are shown from VB6 they do not inherit the visual styles of the operating system and act like VB6 controls.

I gather that this probably by design but is there some way to force/control visual styles manually in the .NET assembly? I would imagine that if I use a manifest in my VB6 app then everything will use the correct style but I would like to be able to control this myself if possible because we are using 3rd party controls in VB6 that do not require a manifest.

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  1. Editorial Team

    I think the manifest is the way to do it, but first, you could always try this:

    Add a reference to Windows.Forms and call these two methods in your assembly entry point:

        System.Windows.Forms.Application.EnableVisualStyles()
    System.Windows.Forms.Application.DoEvents()

    Note: We call DoEvents() because there was framework bug which caused errors and badly drawn styles. I believe this has been fixed since, but just in case.

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