Tkinter 中的多个键事件绑定 - “Control + E"“命令(苹果)+ E"等等 [英] Multiple Key Event Bindings in Tkinter - "Control + E" "Command (apple) + E" etc

问题描述

Mac OS X 10.6.6 - Tkinter

Mac OS X 10.6.6 - Tkinter

我想绑定多键事件，虽然我找到了一篇 effbot 文章和 Tk 手册页，但我无法使其正常工作.我是新来的.

I want to bind multiple-key events, and while I have found an effbot article and the Tk man pages, I've been unable to make this work correctly. I'm new here.

我取得了喜忧参半的成功.我已经能够获得 Shift + 字母键，但不能获得 Control 或 Command(Apple 键).我真正想做的是 Command + letter 和 Control + letter 键，所以理论上它可以在 Windows 和 OS X 中工作.

I've had mixed success. I've been able to get Shift + letter key, but not Control or Command (Apple key). What I really want to do is Command + letter and Control + letter key so it would theoretically work in Windows and OS X.

我希望它在窗口级别工作，所以我使用的是 root.也许有更好的方法.以下是我尝试过的:

I want it to work at window-level, so I'm using root. Perhaps there is a better way. Below is what I've tried:

root.bind('<Shift-E>', self.pressedCmdE)   # Works
root.bind('e', self.pressedCmdE)           # Works
root.bind('<Command-E>', self.pressedCmdE) # Does Not Work
#root.bind('<Mod1-E>', self.pressedCmdE)   #   # Do Mod1, M1, and
#root.bind('<M1-E>', self.pressedCmdE)     #   # Command mean the same thing?

<小时>

奇怪的是，当我按下 alt/option +(E、N 或其他)时，它会产生错误.它是否与 PythonLauncher 交互?

---

Strangely, when I press alt/option + (E, N, or others) it creates an error. Is it interacting with PythonLauncher?

2011-06-16 16:19:22.618 Python[1546:d07] An uncaught exception was raised
2011-06-16 16:19:22.621 Python[1546:d07] *** -[NSCFString characterAtIndex:]: Range or index out of bounds
2011-06-16 16:19:22.622 Python[1546:d07] *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[NSCFString characterAtIndex:]: Range or index out of bounds'
*** Call stack at first throw:
(
    0   CoreFoundation                      0x00007fff85b397b4 __exceptionPreprocess + 180
    1   libobjc.A.dylib                     0x00007fff848b90f3 objc_exception_throw + 45
    2   CoreFoundation                      0x00007fff85b395d7 +[NSException raise:format:arguments:] + 103
    3   CoreFoundation                      0x00007fff85b39564 +[NSException raise:format:] + 148
    4   Foundation                          0x00007fff866eb5e1 -[NSCFString characterAtIndex:] + 97
    5   Tk                                  0x0000000100759bcf Tk_SetCaretPos + 663
    6   Tk                                  0x000000010075fd94 Tk_MacOSXSetupTkNotifier + 699
    7   Tcl                                 0x000000010061d2ae Tcl_DoOneEvent + 297
    8   _tkinter.so                         0x00000001001d9be9 init_tkinter + 1132
    9   Python                              0x0000000100089187 PyEval_EvalFrameEx + 15317
    10  Python                              0x000000010008acce PyEval_EvalCodeEx + 1803
    11  Python                              0x000000010008935e PyEval_EvalFrameEx + 15788
    12  Python                              0x000000010008acce PyEval_EvalCodeEx + 1803
    13  Python                              0x000000010008ad61 PyEval_EvalCode + 54
    14  Python                              0x00000001000a265a Py_CompileString + 78
    15  Python                              0x00000001000a2723 PyRun_FileExFlags + 150
    16  Python                              0x00000001000a423d PyRun_SimpleFileExFlags + 704
    17  Python                              0x00000001000b0286 Py_Main + 2718
    18  Python                              0x0000000100000e6c start + 52
)
terminate called after throwing an instance of 'NSException'
Abort trap

推荐答案

这似乎是 Tk 中的一个错误.我在 mac 上使用 tcl/tk 以及使用 python/tkinter 时遇到相同的错误.您可以将 <Command-e> 绑定到小部件(我尝试使用文本小部件)，但将其绑定到根窗口或 "all" 似乎会导致你得到的错误.

This appears to be a bug in Tk. I get the same error with tcl/tk on the mac as well as with python/tkinter. You can bind <Command-e> to a widget (I tried with a text widget) but binding it to the root window or to "all" seems to cause the error you get.

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