CODEWITHSUNDEEP
c#charkeyspecial-characters
user779444
user779444

Reputation: 1395

Convert A Char To Keys

I have a special char (/ @) That I want to convert to Keys.

I am currently using this : 

Keys k = (Keys)'/';

And while debugging, I get that k equals to :

LButton | RButton | MButton | Back | Space type - System.Windows.Forms.Keys

k's keycode was suppose to be 111.

NOTE: The code does work for uppercase letters such as :

Keys k = (Keys)'Z';

In that case, k's key code is 90, which is ok.

I'm trying to find a way to convert special chars to Keys. (or to their proper key code)

Trying to send keys globally using : 

public static void SendKey(byte keycode)
    {
        const int KEYEVENTF_EXTENDEDKEY = 0x1;
        const int KEYEVENTF_KEYUP = 0x2;
        keybd_event(keycode, 0x45, KEYEVENTF_EXTENDEDKEY, (UIntPtr)0);
        keybd_event(keycode, 0x45, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, (UIntPtr)0);
    }

SendKey((byte)Keys.{SomethingHere});

Upvotes: 9

Views: 22151

Answers (6)

Carlos Alberto Flores Onofre
Carlos Alberto Flores Onofre

Reputation: 73

In my opinion this the ideal solution in terms of readability.

Keys key = (Keys) Enum.Parse(typeof(Keys), c.ToString(), ignoreCase: true);

Upvotes: 0

ABS
ABS

Reputation: 2803

My way only works with letters and some other keys.

string s = char.ToString(e.KeyChar);

This gives you string of Keys equivalent. Something like output of Keys.ToString(). So all we need that converting s to its Keys equivalent!

(Keys) Enum.Parse(typeof(Keys), char.ToString(e.KeyChar).ToUpper());

good luck...

Upvotes: 1

Vano Maisuradze
Vano Maisuradze

Reputation: 5899

It's old question, but I used this:

Keys k = (Keys)char.ToUpper(c);

If char value is a (with code 97) then converting into A (with code 65) maps to Keys.A and so on...

Hope this will help someone.

Upvotes: 18

plinth
plinth

Reputation: 49189

You can't cast from char to Keys. Keys is a flags enumeration that represents which physical keys are pressed on the keyboard. What you are trying might not be a straightforward problem to solve. Who's to say what keyboard the user used and what mapping generates what particular character on the user's keyboard and their locale?

Can you be more specific about your goal? Are you trying to teach a user how to type a special character or something else?

Based on your update, you should be using the SendKeys class.

Upvotes: 3

DeveloperX
DeveloperX

Reputation: 4683

It should work!

Keys o = (Keys)Enum.Parse(typeof(Keys), ((int)e.KeyChar).ToString());

Upvotes: 2

InBetween
InBetween

Reputation: 32750

As far as I know there is no way to map the Keys enumeration to char. One specifies key codes and modifiers, useful for System.Windows.Forms.Control while the other represents a 16 bit Unicode character (U+0000 to U+ffff).

To alltogether different concepts.

Upvotes: 0

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