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- XGrabKeyboard(3X11) XLIB FUNCTIONS XGrabKeyboard(3X11)
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- NNAAMMEE
- XGrabKeyboard, XUngrabKeyboard - grab the keyboard
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- SSYYNNTTAAXX
- int XGrabKeyboard(_d_i_s_p_l_a_y, _g_r_a_b___w_i_n_d_o_w, _o_w_n_e_r___e_v_e_n_t_s,
- _p_o_i_n_t_e_r___m_o_d_e, _k_e_y_b_o_a_r_d___m_o_d_e, _t_i_m_e)
- Display *_d_i_s_p_l_a_y;
- Window _g_r_a_b___w_i_n_d_o_w;
- Bool _o_w_n_e_r___e_v_e_n_t_s;
- int _p_o_i_n_t_e_r___m_o_d_e, _k_e_y_b_o_a_r_d___m_o_d_e;
- Time _t_i_m_e;
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- XUngrabKeyboard(_d_i_s_p_l_a_y, _t_i_m_e)
- Display *_d_i_s_p_l_a_y;
- Time _t_i_m_e;
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- AARRGGUUMMEENNTTSS
- _d_i_s_p_l_a_y Specifies the connection to the X server.
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- _g_r_a_b___w_i_n_d_o_w
- Specifies the grab window.
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- _k_e_y_b_o_a_r_d___m_o_d_e
- Specifies further processing of keyboard events.
- You can pass _G_r_a_b_M_o_d_e_S_y_n_c or _G_r_a_b_M_o_d_e_A_s_y_n_c.
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- _o_w_n_e_r___e_v_e_n_t_s
- Specifies a Boolean value that indicates whether
- the keyboard events are to be reported as usual.
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- _p_o_i_n_t_e_r___m_o_d_e
- Specifies further processing of pointer events.
- You can pass _G_r_a_b_M_o_d_e_S_y_n_c or _G_r_a_b_M_o_d_e_A_s_y_n_c.
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- _t_i_m_e Specifies the time. You can pass either a
- timestamp or _C_u_r_r_e_n_t_T_i_m_e.
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- DDEESSCCRRIIPPTTIIOONN
- The _X_G_r_a_b_K_e_y_b_o_a_r_d function actively grabs control of the
- keyboard and generates _F_o_c_u_s_I_n and _F_o_c_u_s_O_u_t events. Fur-
- ther key events are reported only to the grabbing client.
- _X_G_r_a_b_K_e_y_b_o_a_r_d overrides any active keyboard grab by this
- client. If owner_events is _F_a_l_s_e, all generated key
- events are reported with respect to grab_window. If
- owner_events is _T_r_u_e and if a generated key event would
- normally be reported to this client, it is reported nor-
- mally; otherwise, the event is reported with respect to
- the grab_window. Both _K_e_y_P_r_e_s_s and _K_e_y_R_e_l_e_a_s_e events are
- always reported, independent of any event selection made
- by the client.
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- If the keyboard_mode argument is _G_r_a_b_M_o_d_e_A_s_y_n_c, keyboard
- event processing continues as usual. If the keyboard is
- currently frozen by this client, then processing of
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- X Version 11 Release 6.1 1
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- XGrabKeyboard(3X11) XLIB FUNCTIONS XGrabKeyboard(3X11)
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- keyboard events is resumed. If the keyboard_mode argu-
- ment is _G_r_a_b_M_o_d_e_S_y_n_c, the state of the keyboard (as seen
- by client applications) appears to freeze, and the X
- server generates no further keyboard events until the
- grabbing client issues a releasing _X_A_l_l_o_w_E_v_e_n_t_s call or
- until the keyboard grab is released. Actual keyboard
- changes are not lost while the keyboard is frozen; they
- are simply queued in the server for later processing.
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- If pointer_mode is _G_r_a_b_M_o_d_e_A_s_y_n_c, pointer event processing
- is unaffected by activation of the grab. If pointer_mode
- is _G_r_a_b_M_o_d_e_S_y_n_c, the state of the pointer (as seen by
- client applications) appears to freeze, and the X server
- generates no further pointer events until the grabbing
- client issues a releasing _X_A_l_l_o_w_E_v_e_n_t_s call or until the
- keyboard grab is released. Actual pointer changes are not
- lost while the pointer is frozen; they are simply queued
- in the server for later processing.
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- If the keyboard is actively grabbed by some other client,
- _X_G_r_a_b_K_e_y_b_o_a_r_d fails and returns _A_l_r_e_a_d_y_G_r_a_b_b_e_d. If
- grab_window is not viewable, it fails and returns
- _G_r_a_b_N_o_t_V_i_e_w_a_b_l_e. If the keyboard is frozen by an active
- grab of another client, it fails and returns _G_r_a_b_F_r_o_z_e_n.
- If the specified time is earlier than the last-keyboard-
- grab time or later than the current X server time, it
- fails and returns _G_r_a_b_I_n_v_a_l_i_d_T_i_m_e. Otherwise, the last-
- keyboard-grab time is set to the specified time (_C_u_r_r_e_n_t_-
- _T_i_m_e is replaced by the current X server time).
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- _X_G_r_a_b_K_e_y_b_o_a_r_d can generate _B_a_d_V_a_l_u_e and _B_a_d_W_i_n_d_o_w errors.
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- The _X_U_n_g_r_a_b_K_e_y_b_o_a_r_d function releases the keyboard and any
- queued events if this client has it actively grabbed from
- either _X_G_r_a_b_K_e_y_b_o_a_r_d or _X_G_r_a_b_K_e_y. _X_U_n_g_r_a_b_K_e_y_b_o_a_r_d does
- not release the keyboard and any queued events if the
- specified time is earlier than the last-keyboard-grab time
- or is later than the current X server time. It also gen-
- erates _F_o_c_u_s_I_n and _F_o_c_u_s_O_u_t events. The X server automat-
- ically performs an _U_n_g_r_a_b_K_e_y_b_o_a_r_d request if the event
- window for an active keyboard grab becomes not viewable.
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- DDIIAAGGNNOOSSTTIICCSS
- _B_a_d_V_a_l_u_e Some numeric value falls outside the range of
- values accepted by the request. Unless a spe-
- cific range is specified for an argument, the
- full range defined by the argument's type is
- accepted. Any argument defined as a set of
- alternatives can generate this error.
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- _B_a_d_W_i_n_d_o_w A value for a Window argument does not name a
- defined Window.
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- X Version 11 Release 6.1 2
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- XGrabKeyboard(3X11) XLIB FUNCTIONS XGrabKeyboard(3X11)
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- SSEEEE AALLSSOO
- XAllowEvents(3X11), XGrabButton(3X11), XGrabKey(3X11),
- XGrabPointer(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 3
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