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XChangeKeyboardDevice - change which device is used as
the X keyboard
- Status XChangeKeyboardDevice(Display *display, XDevice
- *device);
- display
- Specifies the connection to the X server.
- device
- Specifies
the device to be used as the X keyboard.
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.
- 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.
XChangePointerDevice
Programming With Xlib
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