keyboard_check

With this function you can check to see if a key is held down or not.

The function will take a keycode value as returned by the function ord (only capital letters from A-Z or numbers from 0-9), or any of the vk_* constants listed on the main Keyboard Input page.

Unlike the keyboard_check_pressed or keyboard_check_released functions which are only triggered once when the key is pressed or released, this function is triggered every step that the key is held down for.

Syntax:

keyboard_check(key);

Returns:

Boolean

Example:

if keyboard_check(vk_left)
{
    x -= 5;
}

The above code will check to see if the arrow key is being pressed and move the instance 5 pixels left every step that it returns true.