Question about UNIX ioscan command Post: 302146469

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LEARN ABOUT MOJAVE

key_shifts

key_shifts(3alleg4)						  Allegro manual					       key_shifts(3alleg4)

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(3alleg4), poll_keyboard(3alleg4), key(3alleg4), excamera(3alleg4), exkeys(3alleg4)

Allegro 							   version 4.4.2					       key_shifts(3alleg4)

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