DEVICES: Difference between revisions

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(Created page with "{{DISPLAYTITLE:_DEVICES}} The _DEVICES function returns the number of INPUT devices on your computer including keyboard, mouse and game devices. {{PageSyntax}} : {{Parameter|device_count%}} = _DEVICES {{PageDescription}} * 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 r...")
 
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{{PageExamples}}
{{PageExamples}}
''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}}  'MUST be read in order for other 2 device functions to work!
PRINT "Number of input devices found ="; devices
PRINT "Number of input devices found ="; devices
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   PRINT {{Cl|_DEVICE$}}(i)
   PRINT {{Cl|_DEVICE$}}(i)
   PRINT "Buttons:"; {{Cl|_LASTBUTTON}}(i)
   PRINT "Buttons:"; {{Cl|_LASTBUTTON}}(i)
NEXT '' ''
NEXT  
{{CodeEnd}}
{{CodeEnd}}
{{OutputStart}}Number of input devices found = 2
{{OutputStart}}Number of input devices found = 2
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{{PageNavigation}}
{{PageNavigation}}
[[Category:Latest]]

Revision as of 22:25, 22 June 2022

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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