IABSD.fr/xenocara/lib/libXi/man/XQueryDeviceState.man

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• Author : matthieu
  Date : 2024-11-05 08:16:45
  Hash : c975c924
  Message : Update to libXi 1.8.2. The fix for double alignment on 32bits machines with strict constraints was already committed.

• lib/libXi/man/XQueryDeviceState.man

• '\" t
  .\"     Title: xquerydevicestate
  .\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
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  .\"      Date: 09/05/2024
  .\"    Manual: \ \&
  .\"    Source: \ \&
  .\"  Language: English
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  .TH "XQUERYDEVICESTATE" "libmansuffix" "09/05/2024" "\ \&" "\ \&"
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  .SH "NAME"
  XQueryDeviceState \- query the state of an extension input device\&.
  .SH "SYNOPSIS"
  .sp
  .nf
  #include <X11/extensions/XInput\&.h>
  .fi
  .sp
  .nf
  XDeviceState* XQueryDeviceState( Display *display,
                                   XDevice *device);
  .fi
  .sp
  .nf
  display
         Specifies the connection to the X server\&.
  .fi
  .sp
  .nf
  device
         Specifies the device whose state is to be queried\&.
  .fi
  .SH "DESCRIPTION"
  .sp
  .if n \{\
  .RS 4
  .\}
  .nf
  The XQueryDeviceState request queries the state of an input
  device\&. The current state of keys and buttons (up or down), and
  valuators (current value) on the device is reported by this
  request\&. Each key or button is represented by a bit in the
  XDeviceState structure that is returned\&. Valuators on the
  device report 0 if they are reporting relative information, and
  the current value if they are reporting absolute information\&.
  .fi
  .if n \{\
  .RE
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  .sp
  .if n \{\
  .RS 4
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  .nf
  XQueryDeviceState can generate a BadDevice error\&.
  .fi
  .if n \{\
  .RE
  .\}
  .sp
  .if n \{\
  .RS 4
  .\}
  .nf
  Structures:
  .fi
  .if n \{\
  .RE
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  .sp
  .if n \{\
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  .nf
  The XDeviceState structure contains:
  .fi
  .if n \{\
  .RE
  .\}
  .sp
  .if n \{\
  .RS 4
  .\}
  .nf
  typedef struct {
      XID device_id;
      int num_classes;
      XInputClass *data;
  } XDeviceState;
  .fi
  .if n \{\
  .RE
  .\}
  .sp
  .if n \{\
  .RS 4
  .\}
  .nf
  The XValuatorState structure contains:
  .fi
  .if n \{\
  .RE
  .\}
  .sp
  .if n \{\
  .RS 4
  .\}
  .nf
  typedef struct {
      unsigned char class;
      unsigned char length;
      unsigned char num_valuators;
      unsigned char mode;
      int *valuators;
  } XValuatorState;
  .fi
  .if n \{\
  .RE
  .\}
  .sp
  .if n \{\
  .RS 4
  .\}
  .nf
  The XKeyState structure contains:
  .fi
  .if n \{\
  .RE
  .\}
  .sp
  .if n \{\
  .RS 4
  .\}
  .nf
  typedef struct {
      unsigned char class;
      unsigned char length;
      short     num_keys;
      char keys[32];
  } XKeyState;
  .fi
  .if n \{\
  .RE
  .\}
  .sp
  .if n \{\
  .RS 4
  .\}
  .nf
  The XButtonState structure contains:
  .fi
  .if n \{\
  .RE
  .\}
  .sp
  .if n \{\
  .RS 4
  .\}
  .nf
  typedef struct {
      unsigned char class;
      unsigned char length;
      short     num_buttons;
      char buttons[32];
  } XButtonState;
  .fi
  .if n \{\
  .RE
  .\}
  .SH "DIAGNOSTICS"
  .sp
  .if n \{\
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  .nf
  BadDevice
         An invalid device was specified\&. The specified device
         does not exist or has not been opened by this client via
         XOpenInputDevice\&. This error may also occur if some
         other client has caused the specified device to become
         the X keyboard or X pointer device via the
         XChangeKeyboardDevice or XChangePointerDevice requests\&.
  .fi
  .if n \{\
  .RE
  .\}