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onClientGUIMouseDown

Client-side
Server-side
Shared

This event is fired when the user clicks certain mouse button on a GUI element.

Parameters

string button, int absoluteX, int absoluteY
  • button: the name of the mouse button that the GUI element was clicked with, can be left, right, or middle.
  • absoluteX: the X position of the mouse cursor, in pixels, measured from the left side of the screen.
  • absoluteY: the Y position of the mouse cursor, in pixels, measured from the top of the screen.

Source

element: The source of this event is the GUI element that was clicked.

Code Examples

client

This example show how to add very basicclick'n'dragfeature for GUI elements (only for those which parent element is gui-root)

addEventHandler( "onClientGUIMouseDown", root,
    function ( btn, x, y )
        if btn == "left" then
            clickedElement = source; -- store the clicked element in a global variable
            local elementPos = { guiGetPosition( source, false ) };
            offsetPos = { x - elementPos[ 1 ], y - elementPos[ 2 ] }; -- get the offset position
        end
    end
);


addEventHandler( "onClientGUIMouseUp", root,
    function ( btn, x, y )
        if btn == "left" then
            clickedElement = nil;
        end
    end
);


addEventHandler( "onClientCursorMove", root,
    function ( _, _, x, y )
        if clickedElement then
            guiSetPosition( clickedElement, x - offsetPos[ 1 ], y - offsetPos[ 2 ], false );
        end
    end
);

See Also

Input Events
Input Functions
Reference