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altReturns true if the alt key was down when the mouse event was fired.
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buttonThe button number that was pressed (if applicable) when the mouse event was fired.
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buttonsThe buttons being depressed (if any) when the mouse event was fired.
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clientXThe X coordinate of the mouse pointer in local (DOM content) coordinates.
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clientYThe Y coordinate of the mouse pointer in local (DOM content) coordinates.
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ctrlReturns true if the control key was down when the mouse event was fired.
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detailReturns a long with details about the event, depending on the event type.
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heightThe height (magnitude on the Y axis), in CSS pixels, of the contact geometry of the pointer.
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isIndicates if the pointer represents the primary pointer of this pointer type.
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metaReturns true if the meta key was down when the mouse event was fired.
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offsetXThe X coordinate of the mouse pointer between that event and the padding edge of the target node
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offsetYThe Y coordinate of the mouse pointer between that event and the padding edge of the target node
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pageXThe X coordinate of the mouse pointer relative to the whole document.
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pageYThe Y coordinate of the mouse pointer relative to the whole document.
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pointerA unique identifier for the pointer causing the event.
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pointerIndicates the device type that caused the event (mouse, pen, touch, etc.)
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pressureThe normalized pressure of the pointer input in the range 0 to 1, where 0 and 1 represent the minimum and maximum pressure the hardware is capable of detecting, respectively.
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relatedThe secondary target for the event, if there is one.
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screenXThe X coordinate of the mouse pointer in global (screen) coordinates.
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screenYThe Y coordinate of the mouse pointer in global (screen) coordinates.
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shiftReturns true if the shift key was down when the mouse event was fired.
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tangentialThe normalized tangential pressure of the pointer input (also known as barrel pressure or cylinder stress) in the range -1 to 1, where 0 is the neutral position of the control.
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tiltXThe plane angle (in degrees, in the range of -90 to 90) between the Y–Z plane and the plane containing both the pointer (e.g. pen stylus) axis and the Y axis.
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tiltYThe plane angle (in degrees, in the range of -90 to 90) between the X–Z plane and the plane containing both the pointer (e.g. pen stylus) axis and the X axis.
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twistThe clockwise rotation of the pointer (e.g. pen stylus) around its major axis in degrees, with a value in the range 0 to 359.
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widthThe width (magnitude on the X axis), in CSS pixels, of the contact geometry of the pointer
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xAlias for NativeMouseEvent.clientX
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yAlias for NativeMouseEvent.clientY
https://developer.mozilla.org/en-US/docs/Web/API/PointerEvent