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Help => General => Topic started by: KKZiomek on December 28, 2016, 07:29:00 am

Title: Single key press outside a sfml window?
Post by: KKZiomek on December 28, 2016, 07:29:00 am

I recently wondered if there is a function in SFML that can detect if a key was pressed once but outside an event of a window. I would want do detevt this outside a sfml window. sf::isKeyPressed only detects if a key is held, but not pressed.

Title: Re: Single key press outside a sfml window?
Post by: Mr_Blame on December 28, 2016, 07:44:18 am

What do you mean under "detecting outside the window"?

Title: Single key press outside a sfml window?
Post by: eXpl0it3r on December 28, 2016, 08:48:41 am

There isn't. Events are window based and sf::Keyboard does real-time checks.

Title: Re: Single key press outside a sfml window?
Post by: KKZiomek on December 28, 2016, 04:43:06 pm

Can anyone think of any way to turn those "id held" statements into single keypresses?

I did:

//Pseudocode
while isKeyPressed(Key)
{
        if not isKeyPressed(Key) break;
}

But this is not good, as other keys are not detected and program is delayed.

Can anyone think of better way?

Title: Re: Single key press outside a sfml window?
Post by: Laurent on December 28, 2016, 07:29:23 pm

You need to store the previous state of the key. Then compare it to the current state: if they are different, then the key is either pressed or released.