KeyDown事件，重点preSS事件和KeyUp事件在Visual Studio中的区别 [英] Difference between the KeyDown Event, KeyPress Event and KeyUp Event in Visual Studio

问题描述

谁能告诉我在的KeyDown 事件之间的差别，在键preSS 事件和的KeyUp 事件？我查MSDN网站，它并没有太多的解释。

Can anyone tell me the difference between the KeyDown event, the KeyPress event and the KeyUp event? I checked the msdn site and it does not explain it much.

谁能告诉我简单的逻辑意义当每个事件发生？我觉得当一个关键是pssed $ P $出现上述所有事件。那么它们之间有什么确切的差别。

Can anyone tell me in simple logical sense when each of the event occurs? I feel that all the above event occurs when a key is pressed. So what is the exact difference between them.

推荐答案

• 的KeyDown：当人presses一个键（在键盘首先检测上的一个键一个手指，出现这种情况的时候，关键是pressed下）发​​生

• KeyDown: happens when the person presses a key (when the keyboard first detects a finger on a key, this happens when the key is pressed down).

  重点preSS：当一个关键是pressed，然后释放发生

  KeyPress: happens when a key is pressed and then released.

  的KeyUp：关键是释放时发生

  KeyUp: happens when the key is released

  您是对的，当一个关键是pssed $ P $，然后释放，在我上述顺序所有这些事件发生。

  You are right that all of these events occur when a key is pressed and then released, in the order I described above.

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