Control and Keyboard Input

This is a discussion on Control and Keyboard Input within the C++ Programming forums, part of the General Programming Boards category; Hello, C++ novice back again, and I now have a new question which I can't seem to find a clear ...

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    Control and Keyboard Input

    Hello, C++ novice back again, and I now have a new question which I can't seem to find a clear answer to on the Internet.

    First of all, I'm trying to write a functional text editor, and I'm wondering how to get my program to recognize a key combination (<ctrl>+O for opening files, for example) and using that information to preform whatever function. However, the problem is, I don't know how C++ handles key combinations.

    Could somebody help me by informing me of a function that can preform key combinations? Thank you for taking your time.

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    The answer depends on your platform. What OS/compiler are you using?

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    I'm currently developing for Windows, and I'm using Dev C++ as my compiler.

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    How are you storing each line whilst you're editing the file?
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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    Quote Originally Posted by Salem View Post
    How are you storing each line whilst you're editing the file?
    I'm mostly in the conceptual stage of development (I haven't written any actual source code yet), so I haven't worked that out. What I was wondering was whether or not there was a way to get the computer to recognize keyboard combinations.

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    If you are using command line, then you probably will need a "read keyboard without waiting for enter", which there is a sample of in the FAQ section. It would then return CTRL-O as the value 15 (O being the 15th letter in the alphabet, and can be expressed as 'O'-64 or 'O'-('A'-1)).

    There are OTHER ways you can determine which key was pressed and what modifier keys (CTRL, SHIFT, ALT, etc) are currently active.

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    Will this be a console application or a windows application?

    If it's console, look at http://www.adrianxw.dk/SoftwareSite/index.html.

    If it's windows, then you have a lot more to learn than just keyboard handling. You should start with windows programming tutorials and/or books or consider learning a library like wxWidgets.

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