How to Enable/Disable Qt Close Button

You can use the following piece of code in your Qt Window to disable Close (“X”) button in the title bar.

	| Qt::WindowMinimizeButtonHint
	| Qt::WindowMaximizeButtonHint);

Alternatively, you can use this code to enable it:

	| Qt::WindowMinimizeButtonHint
	| Qt::WindowMaximizeButtonHint
	| Qt::WindowCloseButtonHint);

As you can see, WindowCloseButtonHint flag is responsible for enabling/disabling Close button in title bar.

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