两个连续的KeyDown事件之间的长时间延迟 [英] Longish delay between two consecutive KeyDown events

问题描述

我有点在写一个小游戏引擎-纯粹是为了从内部了解它们的工作原理.我目前不希望将OpenGL或DirectX弄乱，所以我坚持使用GDI +和所有WinForms控件绘制控件.

I'm kind of writing a little game engine -- purely to understand how these work from the inside. I currently don't want to mess with OpenGL or DirectX, so I stick to drawing on a control with GDI+ and all that WinForms stuff.

显然，我需要处理输入.更具体地说，键盘事件.但是，这带来了一个问题:

Obviously, I need to handle input. More specifically, keyboard events. This, however, poses a problem:

protected override void OnKeyDown(KeyEventArgs e)
{
    Trace.WriteLine(string.Format("KD {0:hh:MM:ss.fff} {1}", 
        DateTime.Now, e.KeyCode));
}

此代码(即使在控制面板"的键盘"小程序中设置了最短的重复延迟)也可以满足以下要求:

This code (even with the shortest repeat delay set in the Keyboard applet in the Control Panel) yeilds the following:

KD 10:02:18.318 Right
KD 10:02:18.570 Right
KD 10:02:18.598 Right
KD 10:02:18.639 Right
KD 10:02:18.667 Right
KD 10:02:18.701 Right

如您所见，这是0.25秒.前两个事件之间的延迟.显然，这会导致屏幕上的对象运动缓慢:它先向右微移，然后暂停一会儿，然后继续.

As you can see, there's a 0.25 sec. delay between first two events. This results in sluggish movements of objects on screen, obviously: it first moves slightly to the right, then pauses for a noticeable moment, and then continues on.

我该如何解决该问题?可以在纯WinForms中完成此操作，还是我应该使用DirectInput(或如今的犹太洁食方式?)路由?

How do I resolve that issue? Can this be done in pure WinForms or should I go DirectInput (or whatever is the kosher way nowadays?) route?

推荐答案

使用Windows消息并不是进行输入交互的最佳方法.
我对WinForms一无所知，但我假设在关键事件上使用消息.

Using Windows messages isn't the best way to go for input interaction.
I know nothing about WinForms, but I assume on key events use messages.

很多年前，我已经使用DirectInput(v7)，而且速度非常快.
也许 GetKeyboardState 或 GetAsyncKeyState 是不错的选择.

I've used DirectInput (v7) many years ago, and it was really fast.
Perhaps GetKeyboardState or GetAsyncKeyState in a game loop are good alternatives.

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