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key_shifts(3)			Allegro manual			 key_shifts(3)

NAME
       key_shifts  -  Bitmask  containing  the current state of modifier keys.
       Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       extern volatile int key_shifts;

DESCRIPTION
       Bitmask containing the current state  of	 shift/ctrl/alt,  the  special
       Windows	keys, and the accent escape characters. Wherever possible this
       value will be  updated  asynchronously,	but  if	 keyboard_needs_poll()
       returns	TRUE, you must manually call poll_keyboard() to update it with
       the current input state. This can contain any of the flags:

	  KB_SHIFT_FLAG
	  KB_CTRL_FLAG
	  KB_ALT_FLAG
	  KB_LWIN_FLAG
	  KB_RWIN_FLAG
	  KB_MENU_FLAG
	  KB_COMMAND_FLAG
	  KB_SCROLOCK_FLAG
	  KB_NUMLOCK_FLAG
	  KB_CAPSLOCK_FLAG
	  KB_INALTSEQ_FLAG
	  KB_ACCENT1_FLAG
	  KB_ACCENT2_FLAG
	  KB_ACCENT3_FLAG
	  KB_ACCENT4_FLAG

       Example:

	  if (key[KEY_W]) {
	     if (key_shifts & KB_SHIFT_FLAG) {
		/* User is pressing shift + W. */
	     } else {
		/* Hmmm... lower case W then. */
	     }
	  }

SEE ALSO
       install_keyboard(3), poll_keyboard(3), key(3), excamera(3), exkeys(3)

Allegro				 version 4.4.2			 key_shifts(3)

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