Change ClassName in c#

[RYU]

Hi, If I built a windows application in VS2008, the class name I got is something like WindowsForms10.Window.8.app.0.378734a Is it possible to change this class name? I tried to do

protected override System.Windows.Forms.CreateParams CreateParams
{
    [SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
    get
    {
        System.Windows.Forms.CreateParams cp = base.CreateParams;
        cp.ClassName = "MyTestApp.MainForm";
        return cp;
    }
}

But every time I run my application, I got this error

Attempting managed execution inside OS Loader lock. Do not attempt to run managed code inside a DllMain or image initialization function since doing so can cause the application to hang.

Any idea? Cheers :)

[leppie]

RYU^^ wrote:

Any idea?

Why on earth would you want to do such a thing?

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[RYU]

leppie wrote:

Why on earth would you want to do such a thing?

Do you mean changing the class name from WindowsForms10.Window.8.app.0.378734a to MyTestApp.MainForm? Well, I need to do that so that I can use FindWindow(). The reason I need to use FindWindow() is because that is the only function I can find in NSIS (NULLSoft) to find out whether specific application is running or not. Cheers :)

[DrWatsonCoding]

You must use RegisterClassEx first.