Tkinter中的多个键事件绑定 - "Control + E""Command(apple)+ E"等

Question

Mac OS X 10.6.6 - Tkinter

我想绑定多键事件,虽然我找到了一篇文章和Tk手册页,但我一直无法正常工作.我是新来的.

我的成功喜忧参半.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 +字母键,因此它理论上可以在Windows和OS X中使用.

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

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?

---

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

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

Answer 1

对于Tkinter,"Control-R"表示Ctrl- Shift- R而"Control-r"表示Ctrl- R.因此,请确保您没有混合使用大写和小写.

Answer 2

这似乎是Tk中的一个错误.我在mac以及python/tkinter上使用tcl/tk得到了同样的错误.你可以绑定<Command-e>到一个小部件(我试过一个文本小部件),但绑定到根窗口或"all"似乎导致你得到的错误.