As mentioned by others there’s no cross platform way to do this, but on Windows you can do it like this: The Code below checks if the key ‘A’ is down. In case of shift or similar you will need to pass one of these: https://msdn.microsoft.com/de-de/library/windows/desktop/dd375731(v=vs.85).aspx The low-order bit indicates if key is toggled. Oh and … Read more
Call list() on the dictionary instead: In Python 3, the dict.keys() method returns a dictionary view object, which acts as a set. Iterating over the dictionary directly also yields keys, so turning a dictionary into a list results in a list of all the keys:
It’s worth reading here about Oracle Tutorial – Enabling Keyboard Operation where it is explained in details along with sample. Read more about on Oracle Tutorial – How to Use Key Bindings Some example directly from the above tutorial: Read more here Oracle Tutorial – How to Use Buttons, Check Boxes, and Radio Buttons Sample … Read more
To iterate over all the key-value pairs in a table you can use pairs: outputs: Edit: Note that Lua doesn’t guarantee any iteration order for the associative part of the table. If you want to access the items in a specific order, retrieve the keys from arr and sort it. Then access arr through the … Read more
You need to use the LAST_INSERT_ID() function: http://dev.mysql.com/doc/refman/5.0/en/information-functions.html#function_last-insert-id Eg: This will get you back the PRIMARY KEY value of the last row that you inserted: The ID that was generated is maintained in the server on a per-connection basis. This means that the value returned by the function to a given client is the first … Read more
A lambda is an anonymous function: It is often used in functions such as sorted() that take a callable as a parameter (often the key keyword parameter). You could provide an existing function instead of a lambda there too, as long as it is a callable object. Take the sorted() function as an example. It’ll return the given iterable in sorted order: but that sorts uppercased … Read more
In java you don’t check if a key is pressed, instead you listen to KeyEvents. The right way to achieve your goal is to register a KeyEventDispatcher, and implement it to maintain the state of the desired key: Then you can always use: You can, of course, use same method to implement isPressing(“<some key>”) with … Read more
It’s as simple as this: Note that if the dictionary doesn’t have a key that equals “XML_File”, that code will throw an exception. If you want to check first, you can use TryGetValue like this:
No, setting the key’s value to nil is the accepted way of removing an item in the hashmap portion of a table. What you’re doing is standard. However, I’d recommend not overriding table.remove() – for the array portion of a table, the default table.remove() functionality includes renumbering the indices, which your override would not do. If you do want … Read more
A dictionary has, by definition, an arbitrary number of keys. There is no “the key”. You have the keys() method, which gives you a python list of all the keys, and you have the iteritems() method, which returns key-value pairs, so Python 3 version: So you have a handle on the keys, but they only really mean sense if coupled to … Read more