public struct DEBUG_EVENT

public static extern bool WaitForDebugEvent(ref DEBUG_EVENT lpDebugEvent, uint dwMilliseconds );

DEBUG_EVENT

Wrapping WaitForDebugEvent is very hard, because you need to wrap DEBUG_EVENT, which is a large tagged variant structure. It's especially hard to make the wrappers work on both 32-bit and 64-bit because DEBUG_EVENT has different definitions on each platform.