C＃：Windows窗体：让按键在面板/图片框？ [英] C#: Windows Forms: Getting keystrokes in a panel/picturebox?

问题描述

我在做一个游戏使用Windows窗体一个关卡编辑器。的形式有几个下拉菜单，文本框等，用户可以在其中输入信息

I'm making a level editor for a game using windows forms. The form has several drop down menus, text boxes, etc, where the user can type information.

我想为游戏世界本身的工作就像 CTRL + V 或 Ctrl + A 可用命令，而不是文本操作。游戏的世界是psented再$ P $一个图片框包含在面板。

I want to make commands like CTRL + V or CTRL + A available for working within the game world itself, not text manipulation. The game world is represented by a PictureBox contained in a Panel.

此事件处理函数不是永远射击：

This event handler isn't ever firing:

private System.Windows.Forms.Panel canvas;
// ...
this.canvas = new System.Windows.Forms.Panel();
// ...
this.canvas.PreviewKeyDown += new System.Windows.Forms.PreviewKeyDownEventHandler(this.canvas_PreviewKeyDown);

什么是$ P $这样做的pferred方式？可以在面板即使接收键盘输入？在游戏世界中的配售对象的时候，我想允许用户与文本输入操作时使用的复制/粘贴/全选命令，但不是。

What is the preferred way of doing this? Can a panel even receive keyboard input? I would like to allow the user to use copy/paste/select-all commands when working with the text input, but not when placing objects in the game world.

推荐答案

您可能会想这样做的关键捕获在表单级别。这是强烈建议从谁帮写底层的.NET code的人阅读：

You'll probably want to do the key capture at the form level. This is highly recommended reading from the person who helped write the underlying .NET code:

http://blogs.msdn.com/jfoscoding/存档/ 2005/01/24 / 359334.aspx

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