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50 lines
1.5 KiB
Markdown
50 lines
1.5 KiB
Markdown
The [_DEVICES](_DEVICES) function returns the number of INPUT devices on your computer including keyboard, mouse and game devices.
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## Syntax
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> device_count% = [_DEVICES](_DEVICES)
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## Description
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* Returns the number of devices that can be listed separately with the [_DEVICE$](_DEVICE$) function by the device number.
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* Devices include keyboard, mouse, joysticks, game pads and multiple stick game controllers.
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* **Note: This function must be read before trying to use the [_DEVICE$](_DEVICE$), [_DEVICEINPUT](_DEVICEINPUT) or _LAST control functions.**
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## Example(s)
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Checking for the system's input devices.
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```vb
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devices = _DEVICES 'MUST be read in order for other 2 device functions to work!
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PRINT "Number of input devices found ="; devices
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FOR i = 1 TO devices
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PRINT _DEVICE$(i)
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PRINT "Buttons:"; _LASTBUTTON(i)
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NEXT
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```
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```text
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Number of input devices found = 2
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[KEYBOARD][BUTTON]
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Buttons: 512
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[MOUSE][BUTTON][AXIS][WHEEL]
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Buttons: 3
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```
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> Note: The [STRIG](STRIG)/[STICK](STICK) commands won't read from the keyboard or mouse device the above example lists.
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## See Also
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* [_DEVICE$](_DEVICE$), [_DEVICEINPUT](_DEVICEINPUT)
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* [_LASTBUTTON](_LASTBUTTON), [_LASTAXIS](_LASTAXIS), [_LASTWHEEL](_LASTWHEEL)
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* [_BUTTON](_BUTTON), [_BUTTONCHANGE](_BUTTONCHANGE)
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* [_AXIS](_AXIS), [_WHEEL](_WHEEL)
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* [_MOUSEINPUT](_MOUSEINPUT), [_MOUSEX](_MOUSEX), [_MOUSEBUTTON](_MOUSEBUTTON)
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* [STRIG](STRIG), [STICK](STICK)
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* [ON STRIG(n)](ON-STRIG(n)), [STRIG(n)](STRIG(n))
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* [Controller Devices](Controller-Devices)
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