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The OnClientActivate event of the RadWindow is fired when the control becomes the active window. This happens when it opens, when the user clicks or taps on it, and when its client-side API is used to activate it via the setActive() method. You can get the currently active RadWindow through the RadWindowManager's client-side API and its getActiveWindow() method.

The event handler receives the following arguments:

  1. The RadWindow object that fired the event.

  2. An event arguments object that does not expose any methods and properties.

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