XChangeKeyboardDevice(3X11) SDK X11 R4.11MU05 XChangeKeyboardDevice(3X11)
NAME
XChangeKeyboardDevice - change which device is used as the X keyboard
SYNTAX
Status XChangeKeyboardDevice(display, device)
Display *display;
XDevice *device;
ARGUMENTS
display Specifies the connection to the X server.
device Specifies the device to be used as the X keyboard.
DESCRIPTION
The XChangeKeyboardDevice request causes the server to use the
specified device as the X keyboard. The device must have been
previously opened by the requesting client via XOpenDevice or a
BadDevice error will result. The device must support input class
Keys, or a BadMatch error will result. If the server implementation
does not support using the requested device as the X keyboard, a
BadDevice error will result.
If the specified device is grabbed by another client, AlreadyGrabbed
is returned. If the specified device is frozen by a grab on another
device, GrabFrozen is returned. If the request is successful,
Success is returned.
If the request succeeds, a ChangeDeviceNotify event is sent to all
clients that have selected that event. A MappingNotify event with
request = MappingKeyboard is sent to all clients. The specified
device becomes the X keyboard and the old X keyboard becomes
accessible through the input extension protocol requests.
XChangeKeyboardDevice can generate a BadDevice or a BadMatch error.
DIAGNOSTICS
BadDevice An invalid device was specified. The specified device
does not exist, has not been opened by this client via
XOpenInputDevice, or is already one of the core X device
(pointer or keyboard). This error may also occur if the
server implementation does not support using the
specified device as the X keyboard.
BadMatch This error may occur if an XChangeKeyboardDevice request
was made specifying a device that has no keys.
SEE ALSO
XChangePointerDevice
Programming With Xlib
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