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key_shifts

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

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(3alleg), poll_keyboard(3alleg), key(3alleg), excamera(3alleg), exkeys(3alleg) KEY_SHIFTS(3)
 
 
 

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