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JOYCAPS structure

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The JOYCAPS structure contains information about the joystick capabilities.

Syntax

typedef struct {
  WORD  wMid;
  WORD  wPid;
  TCHAR szPname[MAXPNAMELEN];
  UINT  wXmin;
  UINT  wXmax;
  UINT  wYmin;
  UINT  wYmax;
  UINT  wZmin;
  UINT  wZmax;
  UINT  wNumButtons;
  UINT  wPeriodMin;
  UINT  wPeriodMax;
  UINT  wRmin;
  UINT  wRmax;
  UINT  wUmin;
  UINT  wUmax;
  UINT  wVmin;
  UINT  wVmax;
  UINT  wCaps;
  UINT  wMaxAxes;
  UINT  wNumAxes;
  UINT  wMaxButtons;
  TCHAR szRegKey[MAXPNAMELEN];
  TCHAR szOEMVxD[MAX_JOYSTICKOEMVXDNAME];
} JOYCAPS;

Members

  • wMid
    Manufacturer identifier. Manufacturer identifiers are defined in Manufacturer and Product Identifiers.

  • wPid
    Product identifier. Product identifiers are defined in Manufacturer and Product Identifiers.

  • szPname
    Null-terminated string containing the joystick product name.

  • wXmin
    Minimum X-coordinate.

  • wXmax
    Maximum X-coordinate.

  • wYmin
    Minimum Y-coordinate.

  • wYmax
    Maximum Y-coordinate.

  • wZmin
    Minimum Z-coordinate.

  • wZmax
    Maximum Z-coordinate.

  • wNumButtons
    Number of joystick buttons.

  • wPeriodMin
    Smallest polling frequency supported when captured by the joySetCapture function.

  • wPeriodMax
    Largest polling frequency supported when captured by joySetCapture.

  • wRmin
    Minimum rudder value. The rudder is a fourth axis of movement.

  • wRmax
    Maximum rudder value. The rudder is a fourth axis of movement.

  • wUmin
    Minimum u-coordinate (fifth axis) values.

  • wUmax
    Maximum u-coordinate (fifth axis) values.

  • wVmin
    Minimum v-coordinate (sixth axis) values.

  • wVmax
    Maximum v-coordinate (sixth axis) values.

  • wCaps
    Joystick capabilities The following flags define individual capabilities that a joystick might have:

    Flag Description
    JOYCAPS_HASZ Joystick has z-coordinate information.
    JOYCAPS_HASR Joystick has rudder (fourth axis) information.
    JOYCAPS_HASU Joystick has u-coordinate (fifth axis) information.
    JOYCAPS_HASV Joystick has v-coordinate (sixth axis) information.
    JOYCAPS_HASPOV Joystick has point-of-view information.
    JOYCAPS_POV4DIR Joystick point-of-view supports discrete values (centered, forward, backward, left, and right).
    JOYCAPS_POVCTS Joystick point-of-view supports continuous degree bearings.

     

  • wMaxAxes
    Maximum number of axes supported by the joystick.

  • wNumAxes
    Number of axes currently in use by the joystick.

  • wMaxButtons
    Maximum number of buttons supported by the joystick.

  • szRegKey
    Null-terminated string containing the registry key for the joystick.

  • szOEMVxD
    Null-terminated string identifying the joystick driver OEM.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

 Mmsystem.h (include Windows.h)

Unicode and ANSI names

JOYCAPSW (Unicode) and JOYCAPSA (ANSI)

See also

Joysticks

Multimedia Joystick Structures

joySetCapture

Joysticks

Multimedia Joystick Structures