DEVICES: Difference between revisions

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''Example:'' Checking for the system's input devices.
''Example:'' Checking for the system's input devices.
{{CodeStart}}
{{CodeStart}}
devices = {{Cl|_DEVICES}} 'MUST be read in order for other 2 device functions to work!
devices = {{Cl|_DEVICES}} {{Text|<nowiki>'MUST be read in order for other 2 device functions to work!</nowiki>|#919191}}
PRINT "Number of input devices found ="; devices
{{Cl|PRINT}} {{Text|<nowiki>"Number of input devices found ="</nowiki>|#FFB100}}; devices
FOR i = 1 TO devices
{{Cl|FOR}} i = {{Text|1|#F580B1}} {{Cl|TO}} devices
  PRINT {{Cl|_DEVICE$}}(i)
    {{Cl|PRINT}} {{Cl|_DEVICE$}}(i)
  PRINT "Buttons:"; {{Cl|_LASTBUTTON}}(i)
    {{Cl|PRINT}} {{Text|<nowiki>"Buttons:"</nowiki>|#FFB100}}; {{Cl|_LASTBUTTON}}(i)
NEXT
{{Cl|NEXT}}
{{CodeEnd}}
{{CodeEnd}}
{{OutputStart}}Number of input devices found = 2
{{OutputStart}}Number of input devices found = 2

Revision as of 10:27, 24 March 2023

The _DEVICES function returns the number of INPUT devices on your computer including keyboard, mouse and game devices.


Syntax

device_count% = _DEVICES


Description

  • Returns the number of devices that can be listed separately with the _DEVICE$ function by the device number.
  • Devices include keyboard, mouse, joysticks, game pads and multiple stick game controllers.
  • Note: This function must be read before trying to use the _DEVICE$, _DEVICEINPUT or _LAST control functions.


Examples

Example: Checking for the system's input devices.

devices = _DEVICES 'MUST be read in order for other 2 device functions to work!
PRINT "Number of input devices found ="; devices
FOR i = 1 TO devices
    PRINT _DEVICE$(i)
    PRINT "Buttons:"; _LASTBUTTON(i)
NEXT
Number of input devices found = 2
[KEYBOARD][BUTTON]
Buttons: 512
[MOUSE][BUTTON][AXIS][WHEEL]
Buttons: 3
Note: The STRIG/STICK commands won't read from the keyboard or mouse device the above example lists.


See also



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