87 lines
2.5 KiB
Plaintext
87 lines
2.5 KiB
Plaintext
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XISETFOCUS(libmansuffix)
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========================
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NAME
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----
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XISetFocus, XIGetFocus - set or get the device's focus.
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SYNOPSIS
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--------
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#include <X11/extensions/XInput2.h>
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Status XISetFocus( Display *display,
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int deviceid,
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Window focus,
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Time time);
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Status XIGetFocus( Display *display,
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Window *focus_return);
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display
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Specifies the connection to the X server.
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deviceid
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Specifies the device whose focus is to be queried or
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changed.
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focus
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The new focus window.
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focus_return
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Returns the current focus window.
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time
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A valid timestamp or CurrentTime.
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DESCRIPTION
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-----------
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XISetFocus changes the focus of the specified device ans its
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last-focus-change time. It has no effect if the specified time
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is earlier than the current last-focus-change time or is later
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than the current X server time. Otherwise, the
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last-focus-change time is set to the specified time.
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CurrentTime is replaced by the current X server time).
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XISetFocus causes the X server to generate core, XI and XI2
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focus events.
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If the focus window is None all keyboard events by this device
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are discarded until a new focus window is set. Otherwise, if
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focus is a window, it becomes the device's focus window. If a
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generated device event would normally be reported to this
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window or one of its inferiors, the event is reported as usual.
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Otherwise, the event is reported relative to the focus window.
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The specified focus window must be viewable at the time
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XISetFocus is called, or a BadMatch error results. If the focus
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window later becomes not viewable, the focus reverts to the
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parent (or the closest viewable ancestor. When the focus
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reverts, the X server generates core, XI and XI2 focus events
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but the last-focus-change time is not affected.
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Attempting to set the focus on a master pointer device or an
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attached slave device will result in a BadDevice error.
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XISetFocus can generate BadDevice, BadMatch, BadValue, and
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BadWindow errors.
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DIAGNOSTICS
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-----------
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BadValue
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A value is outside of the permitted range.
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BadDevice
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An invalid device was specified. The device does not
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exist or is not a appropriate for the type of change.
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BadMatch
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The window is not viewable.
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BadWindow
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A value for a Window argument does not name a defined
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Window.
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