198 lines
4.4 KiB
Plaintext
198 lines
4.4 KiB
Plaintext
.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.na
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.de Ds
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.nf
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.\\$1D \\$2 \\$1
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.ft 1
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.\".ps \\n(PS
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.ny0
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.TH XVisibilityEvent 3X11 "Release 5" "X Version 11" "XLIB FUNCTIONS"
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.SH NAME
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XVisibilityNotifyEvent \- VisibilityNotify event structure
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.SH STRUCTURES
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The structure for
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.ZN VisibilityNotify
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events contains:
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.LP
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.Ds 0
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.ta .5i 3i
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typedef struct {
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int type; /* VisibiltyNotify */
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unsigned long serial; /* # of last request processed by server */
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Bool send_event; /* true if this came from a SendEvent request */
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Display *display; /* Display the event was read from */
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Window window;
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int state;
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} XVisibilityEvent;
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.De
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.LP
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When you receive this event,
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the structure members are set as follows.
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.LP
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The type member is set to the event type constant name that uniquely identifies
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it.
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For example, when the X server reports a
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.ZN GraphicsExpose
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event to a client application, it sends an
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.ZN XGraphicsExposeEvent
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structure with the type member set to
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.ZN GraphicsExpose .
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The display member is set to a pointer to the display the event was read on.
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The send_event member is set to
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.ZN True
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if the event came from a
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.ZN SendEvent
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protocol request.
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The serial member is set from the serial number reported in the protocol
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but expanded from the 16-bit least-significant bits to a full 32-bit value.
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The window member is set to the window that is most useful to toolkit
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dispatchers.
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.LP
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The window member is set to the window whose visibility state changes.
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The state member is set to the state of the window's visibility and can be
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.ZN VisibilityUnobscured ,
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.ZN VisibilityPartiallyObscured ,
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or
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.ZN VisibilityFullyObscured .
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The X server ignores all of a window's subwindows
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when determining the visibility state of the window and processes
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.ZN VisibilityNotify
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events according to the following:
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.IP \(bu 5
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When the window changes state from partially obscured, fully obscured,
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or not viewable to viewable and completely unobscured,
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the X server generates the event with the state member of the
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.ZN XVisibilityEvent
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structure set to
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.ZN VisibilityUnobscured .
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.IP \(bu 5
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When the window changes state from viewable and completely unobscured or
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not viewable to viewable and partially obscured,
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the X server generates the event with the state member of the
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.ZN XVisibilityEvent
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structure set to
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.ZN VisibilityPartiallyObscured .
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.IP \(bu 5
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When the window changes state from viewable and completely unobscured,
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viewable and partially obscured, or not viewable to viewable and
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fully obscured,
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the X server generates the event with the state member of the
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.ZN XVisibilityEvent
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structure set to
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.ZN VisibilityFullyObscured .
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.SH "SEE ALSO"
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XAnyEvent(3X11),
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XButtonEvent(3X11),
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XCreateWindowEvent(3X11),
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XCirculateEvent(3X11),
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XCirculateRequestEvent(3X11),
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XColormapEvent(3X11),
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XConfigureEvent(3X11),
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XConfigureRequestEvent(3X11),
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XCrossingEvent(3X11),
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XDestroyWindowEvent(3X11),
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XErrorEvent(3X11),
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XExposeEvent(3X11),
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XFocusChangeEvent(3X11),
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XGraphicsExposeEvent(3X11),
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XGravityEvent(3X11),
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XKeymapEvent(3X11),
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XMapEvent(3X11),
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XMapRequestEvent(3X11),
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XPropertyEvent(3X11),
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XReparentEvent(3X11),
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XResizeRequestEvent(3X11),
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XSelectionClearEvent(3X11),
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XSelectionEvent(3X11),
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XSelectionRequestEvent(3X11),
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XUnmapEvent(3X11),
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.br
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\fI\*(xL\fP
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