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- XAnyEvent(3X11) XLIB FUNCTIONS XAnyEvent(3X11)
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- NNAAMMEE
- XAnyEvent, XEvent - generic X event structures
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- SSTTRRUUCCTTUURREESS
- All the event structures declared in <_X_1_1_/_X_l_i_b_._h> have the
- following common members:
- typedef struct {
- int type;
- unsigned long serial; /* # of last request processed by server */
- Bool send_event; /* true if this came from a SendEvent request */
- Display *display; /* Display the event was read from */
- Window window;
- } XAnyEvent;
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- The type member is set to the event type constant name
- that uniquely identifies it. For example, when the X
- server reports a _G_r_a_p_h_i_c_s_E_x_p_o_s_e event to a client applica-
- tion, it sends an _X_G_r_a_p_h_i_c_s_E_x_p_o_s_e_E_v_e_n_t structure with the
- type member set to _G_r_a_p_h_i_c_s_E_x_p_o_s_e. The display member is
- set to a pointer to the display the event was read on.
- The send_event member is set to _T_r_u_e if the event came
- from a _S_e_n_d_E_v_e_n_t protocol request. The serial member is
- set from the serial number reported in the protocol but
- expanded from the 16-bit least-significant bits to a full
- 32-bit value. The window member is set to the window that
- is most useful to toolkit dispatchers.
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- The _X_E_v_e_n_t structure is a union of the individual struc-
- tures declared for each event type:
- typedef union _XEvent {
- int type; /* must not be changed */
- XAnyEvent xany;
- XKeyEvent xkey;
- XButtonEvent xbutton;
- XMotionEvent xmotion;
- XCrossingEvent xcrossing;
- XFocusChangeEvent xfocus;
- XExposeEvent xexpose;
- XGraphicsExposeEvent xgraphicsexpose;
- XNoExposeEvent xnoexpose;
- XVisibilityEvent xvisibility;
- XCreateWindowEvent xcreatewindow;
- XDestroyWindowEvent xdestroywindow;
- XUnmapEvent xunmap;
- XMapEvent xmap;
- XMapRequestEvent xmaprequest;
- XReparentEvent xreparent;
- XConfigureEvent xconfigure;
- XGravityEvent xgravity;
- XResizeRequestEvent xresizerequest;
- XConfigureRequestEvent xconfigurerequest;
- XCirculateEvent xcirculate;
- XCirculateRequestEvent xcirculaterequest;
- XPropertyEvent xproperty;
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- X Version 11 Release 6.1 1
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- XAnyEvent(3X11) XLIB FUNCTIONS XAnyEvent(3X11)
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- XSelectionClearEvent xselectionclear;
- XSelectionRequestEvent xselectionrequest;
- XSelectionEvent xselection;
- XColormapEvent xcolormap;
- XClientMessageEvent xclient;
- XMappingEvent xmapping;
- XErrorEvent xerror;
- XKeymapEvent xkeymap;
- long pad[24];
- } XEvent;
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- An _X_E_v_e_n_t structure's first entry always is the type mem-
- ber, which is set to the event type. The second member
- always is the serial number of the protocol request that
- generated the event. The third member always is
- send_event, which is a _B_o_o_l that indicates if the event
- was sent by a different client. The fourth member always
- is a display, which is the display that the event was read
- from. Except for keymap events, the fifth member always
- is a window, which has been carefully selected to be use-
- ful to toolkit dispatchers. To avoid breaking toolkits,
- the order of these first five entries is not to change.
- Most events also contain a time member, which is the time
- at which an event occurred. In addition, a pointer to the
- generic event must be cast before it is used to access any
- other information in the structure.
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- SSEEEE AALLSSOO
- XButtonEvent(3X11), XCreateWindowEvent(3X11), XCircula-
- teEvent(3X11), XCirculateRequestEvent(3X11), XCol-
- ormapEvent(3X11), XConfigureEvent(3X11), XConfigur-
- eRequestEvent(3X11), XCrossingEvent(3X11), XDestroyWindow-
- Event(3X11), XErrorEvent(3X11), XExposeEvent(3X11), XFo-
- cusChangeEvent(3X11), XGraphicsExposeEvent(3X11), XGravi-
- tyEvent(3X11), XKeymapEvent(3X11), XMapEvent(3X11),
- XMapRequestEvent(3X11), XPropertyEvent(3X11), XRepar-
- entEvent(3X11), XResizeRequestEvent(3X11), XSelection-
- ClearEvent(3X11), XSelectionEvent(3X11), XSelectionRe-
- questEvent(3X11), XUnmapEvent(3X11), XVisibili-
- tyEvent(3X11)
- _X_l_i_b _- _C _L_a_n_g_u_a_g_e _X _I_n_t_e_r_f_a_c_e
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- X Version 11 Release 6.1 2
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