.\" Generated by the Allegro makedoc utility
.TH key_shifts 3alleg4 "version 4.4.2" "Allegro" "Allegro manual"
.SH NAME
key_shifts \- Bitmask containing the current state of modifier keys. Allegro game programming library.\&
.SH SYNOPSIS
.B #include <allegro.h>

.sp
.B extern volatile int key_shifts;
.SH 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:

.nf
   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
.fi

Example:

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

.SH SEE ALSO
.BR install_keyboard (3alleg4),
.BR poll_keyboard (3alleg4),
.BR key (3alleg4),
.BR excamera (3alleg4),
.BR exkeys (3alleg4)