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XChangePointerDevice(3X11) XChangePointerDevice(3X11) NAME XChangePointerDevice - change which device is the X pointer SYNOPSIS Status XChangePointerDevice(display, device xaxis, yaxis) Display *display; XDevice *device; int xaxis; int yaxis; ARGUMENTS Specifies the connection to the X server. Specifies the device to be used as the X pointer. Specifies the axis of the device to be used as the X pointer x-axis. Specifies the axis of the device to be used as the X pointer y-axis. DESCRIPTION The XChangePointerDevice request causes the server to use the specified device as the X pointer. The device must have been opened by the client via XOpenDevice or a BadDevice error will result. The device must support input class Valuators or a BadMatch error will result. If the implementation does not support use of the specified device as the X pointer, 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 de- vice, 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 re- quest = MappingPointer is sent to all clients. The specified device be- comes the X pointer, and the old X pointer becomes accessible through the input extension protocol requests. XChangePointerDevice can generate a BadDevice or a BadMatch error. DIAGNOSTICS 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 input devices (pointer or keyboard). This error may also occur if the server implementation does not support using the specified device as the X pointer. This error may occur if an XChange- PointerDevice request was made specifying a device that has less than two valuators, or specifying a valuator index beyond the range sup- ported by the device. SEE ALSO XChangeKeyboardDevice(3X11) Programming With Xlib XChangePointerDevice(3X11)