时间$ c>元素 GdkEvent 以毫秒为单位。与 g_get_monotonic_time（）（以μs为单位）除以 1000 应该工作（确保检查符号和在比较之前转换为 guint32 ）

The time element of GdkEvent is in miliseconds. Comparing with g_get_monotonic_time() (which is in µs) divided by 1000 should work (make sure to check the sign and cast to guint32 before comparing)