Function OH_Input_SetMouseEventDisplayY 

pub unsafe extern "C" fn OH_Input_SetMouseEventDisplayY(
    mouseEvent: *mut Input_MouseEvent,
    displayY: i32,
)

@brief Sets the Y coordinate of the mouse event in the relative coordinate system with the upper-left corner of the specified screen as the origin.

@param mouseEvent Mouse event object. You can call {@link OH_Input_CreateMouseEvent()} to create a mouse event object.
If the mouse event object is no longer needed, destroy it by calling {@link OH_Input_DestroyMouseEvent()}. @param displayY Y coordinate of the mouse event in the relative coordinate system with the upper left corner of the specified screen as the origin, in pixels (px). @syscap SystemCapability.MultimodalInput.Input.Core @since 12