NAME
XVisibilityEvent - VisibilityNotify event structure
STRUCTURES
The structure for
_V_i_s_i_b_i_l_i_t_y_N_o_t_i_f_y
events contains:
typedef struct {
int type; /* VisibilityNotify */
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;
int state;
} XVisibilityEvent;
When you receive this event,
the structure members are set as follows.
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 application, 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.
The window member is set to the window whose visibility state changes.
The state member is set to the state of the window's visibility and can be
_V_i_s_i_b_i_l_i_t_y_U_n_o_b_s_c_u_r_e_d,
_V_i_s_i_b_i_l_i_t_y_P_a_r_t_i_a_l_l_y_O_b_s_c_u_r_e_d,
or
_V_i_s_i_b_i_l_i_t_y_F_u_l_l_y_O_b_s_c_u_r_e_d.
The X server ignores all of a window's subwindows
when determining the visibility state of the window and processes
_V_i_s_i_b_i_l_i_t_y_N_o_t_i_f_y
events according to the following:
-
·
When the window changes state from partially obscured, fully obscured,
-
or not viewable to viewable and completely unobscured,
the X server generates the event with the state member of the
_X_V_i_s_i_b_i_l_i_t_y_E_v_e_n_t
structure set to
_V_i_s_i_b_i_l_i_t_y_U_n_o_b_s_c_u_r_e_d.
-
·
When the window changes state from viewable and completely unobscured or
-
not viewable to viewable and partially obscured,
the X server generates the event with the state member of the
_X_V_i_s_i_b_i_l_i_t_y_E_v_e_n_t
structure set to
_V_i_s_i_b_i_l_i_t_y_P_a_r_t_i_a_l_l_y_O_b_s_c_u_r_e_d.
-
·
When the window changes state from viewable and completely unobscured,
-
viewable and partially obscured, or not viewable to viewable and
fully obscured,
the X server generates the event with the state member of the
_X_V_i_s_i_b_i_l_i_t_y_E_v_e_n_t
structure set to
_V_i_s_i_b_i_l_i_t_y_F_u_l_l_y_O_b_s_c_u_r_e_d.
SEE ALSO
XAnyEvent(3X11),
XButtonEvent(3X11),
XCreateWindowEvent(3X11),
XCirculateEvent(3X11),
XCirculateRequestEvent(3X11),
XColormapEvent(3X11),
XConfigureEvent(3X11),
XConfigureRequestEvent(3X11),
XCrossingEvent(3X11),
XDestroyWindowEvent(3X11),
XErrorEvent(3X11),
XExposeEvent(3X11),
XFocusChangeEvent(3X11),
XGraphicsExposeEvent(3X11),
XGravityEvent(3X11),
XKeymapEvent(3X11),
XMapEvent(3X11),
XMapRequestEvent(3X11),
XPropertyEvent(3X11),
XReparentEvent(3X11),
XResizeRequestEvent(3X11),
XSelectionClearEvent(3X11),
XSelectionEvent(3X11),
XSelectionRequestEvent(3X11),
XUnmapEvent(3X11),
_X_l_i_b _- _C _L_a_n_g_u_a_g_e _X _I_n_t_e_r_f_a_c_e