Question

如何将关键代码（例如kVK_ANSI_1）转换为我可以传递给setKeyEquivalent的字符串（因此对于kVK_ANSI_1，我会得到@"1"）？为什么有两种方法来指定键呢？只有一个代表就更有意义了。

Answer 1

我最终使用here找到了以下功能。

/* Returns string representation of key, if it is printable.
 * Ownership follows the Create Rule; that is, it is the caller's
 * responsibility to release the returned object. */
CFStringRef createStringForKey(CGKeyCode keyCode)
{
    TISInputSourceRef currentKeyboard = TISCopyCurrentKeyboardInputSource();
    CFDataRef layoutData =
        TISGetInputSourceProperty(currentKeyboard,
                                  kTISPropertyUnicodeKeyLayoutData);
    const UCKeyboardLayout *keyboardLayout =
        (const UCKeyboardLayout *)CFDataGetBytePtr(layoutData);

    UInt32 keysDown = 0;
    UniChar chars[4];
    UniCharCount realLength;

    UCKeyTranslate(keyboardLayout,
                   keyCode,
                   kUCKeyActionDisplay,
                   0,
                   LMGetKbdType(),
                   kUCKeyTranslateNoDeadKeysBit,
                   &keysDown,
                   sizeof(chars) / sizeof(chars[0]),
                   &realLength,
                   chars);
    CFRelease(currentKeyboard);    

    return CFStringCreateWithCharacters(kCFAllocatorDefault, chars, 1);
}

Answer 2

UCKeyTranslate可能就是你https://developer.apple.com/library/mac/#documentation/Carbon/Reference/Unicode_Utilities_Ref/Reference/reference.html

之后的样子

将密钥代码转换为密钥等效字符串

2 个答案: