Enabling Extended Input Devices

To enable an extended input device, use XHPSetInputDevice.

int XHPSetInputDevice(display,deviceid,mode)
      Display *display;
      XID      deviceid;
      int      mode;

Title not available (Enabling Extended Input Devices )

display: Specifies the connection to the X server.
deviceid: Specifies the device to open or close. This is a deviceid listed in the XHPDeviceList structure.
mode: Controls the mode to which the device is set. Valid values are ON|SYSTEM_EVENTS, ON|DEVICE_EVENTS, and OFF.

XHPSetInputDevice allows a client program to request the server to open a device or to close a device when it is no longer needed. The client may cause input from the device to be merged with input from the X keyboard or X pointer by using the mode SYSTEM_EVENTS, or as an individually-selectable device by using the mode DEVICE_EVENTS.

Most clients need to use the DEVICE_EVENTS mode so that the events generated by an extended input device can be distinguished from those generated by the X keyboard and pointer devices.

XHPSetInputDevice can generate BadDevice and BadMode errors. A BadMode error is generated if another client has opened the device with a conflicting mode.

Enabling Extended Input Devices

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