Learn to Show/Hide the Mouse Cursor from the Blueprints.
Instructions
You can show and hide the mouse cursor in Unreal Engine by doing a very simple blueprint code.
In the player controller simply use “Show Mouse cursor” Node to show the mouse cursor.
It’s a Boolean which will show the cursor if it is true and hide the mouse cursor if it is false.
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You can also use this in any other blueprint actor by getting player controller reference.
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Getting Player Controller reference.
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Also make sure you enable these settings in the Project Settings->Input to avoid any problems.
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These settings will prevent mouse capture when your application starts.
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