Function libinput_tablet_tool_unref

pub unsafe extern "C" fn libinput_tablet_tool_unref(
    tool: *mut libinput_tablet_tool,
) -> *mut libinput_tablet_tool

@ingroup event_tablet

Decrement the reference count of the tool by one. When the reference count of the tool reaches 0, the memory allocated for the tool will be freed.

@param tool The tool to decrement the ref count of @return NULL if the tool was destroyed otherwise the passed tool

@see libinput_tablet_tool_ref

@since 1.2