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IRIX Base Documentation 1998 November
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IRIX 6.5.2 Base Documentation November 1998.img
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catman
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cat3
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Xi
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XAllowDeviceEvents.z
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XAllowDeviceEvents
Wrap
Text File
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1998-10-30
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10KB
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199 lines
XXXXAAAAlllllllloooowwwwDDDDeeeevvvviiiicccceeeeEEEEvvvveeeennnnttttssss((((3333XXXX11111111))))XXXX VVVVeeeerrrrssssiiiioooonnnn 11111111 ((((RRRReeeelllleeeeaaaasssseeee 6666....3333))))XXXXAAAAlllllllloooowwwwDDDDeeeevvvviiiicccceeeeEEEEvvvveeeennnnttttssss((((3333XXXX11111111))))
NNNNAAAAMMMMEEEE
XAllowDeviceEvents - release queued events
SSSSYYYYNNNNTTTTAAAAXXXX
XAllowDeviceEvents(_d_i_s_p_l_a_y, _d_e_v_i_c_e, _e_v_e_n_t__m_o_d_e, _t_i_m_e)
Display *_d_i_s_p_l_a_y;
XDevice *_d_e_v_i_c_e;
int _e_v_e_n_t__m_o_d_e;
Time _t_i_m_e;
AAAARRRRGGGGUUUUMMMMEEEENNNNTTTTSSSS
_d_i_s_p_l_a_y Specifies the connection to the X server.
_d_e_v_i_c_e Specifies the device from which events are to be
allowed.
_e_v_e_n_t__m_o_d_e Specifies the event mode. You can pass
_A_s_y_n_c_T_h_i_s_D_e_v_i_c_e, _S_y_n_c_T_h_i_s_D_e_v_i_c_e,
_R_e_p_l_a_y_T_h_i_s_D_e_v_i_c_e, _A_s_y_n_c_O_t_h_e_r_D_e_v_i_c_e_s, _S_y_n_c_A_l_l, or
_A_s_y_n_c_A_l_l.
_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.
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
The _X_A_l_l_o_w_D_e_v_i_c_e_E_v_e_n_t_s function releases some queued events
if the client has caused a device to freeze. It has no
effect if the specified time is earlier than the last-grab
time of the most recent active grab for the client and
device, or if the specified time is later than the current X
server time.
The following describes the processing that occurs depending
on what constant you pass to the event_mode argument.
_A_s_y_n_c_T_h_i_s_D_e_v_i_c_e
If the specified device is frozen by the client,
event processing for that device continues as
usual. If the device is frozen multiple times
by the client on behalf of multiple separate
grabs, _A_s_y_n_c_T_h_i_s_D_e_v_i_c_e thaws for all.
_A_s_y_n_c_T_h_i_s_D_e_v_i_c_e has no effect if the specified
device is not frozen by the client, but the
device need not be grabbed by the client.
_S_y_n_c_T_h_i_s_D_e_v_i_c_e
If the specified device is frozen and actively
grabbed by the client, event processing for that
device continues normally until the next key or
button event is reported to the client. At this
time, the specified device again appears to
freeze. However, if the reported event causes
Page 1 (printed 4/30/98)
XXXXAAAAlllllllloooowwwwDDDDeeeevvvviiiicccceeeeEEEEvvvveeeennnnttttssss((((3333XXXX11111111))))XXXX VVVVeeeerrrrssssiiiioooonnnn 11111111 ((((RRRReeeelllleeeeaaaasssseeee 6666....3333))))XXXXAAAAlllllllloooowwwwDDDDeeeevvvviiiicccceeeeEEEEvvvveeeennnnttttssss((((3333XXXX11111111))))
the grab to be released, the specified device
does not freeze. _S_y_n_c_T_h_i_s_D_e_v_i_c_e has no effect
if the specified device is not frozen by the
client or is not grabbed by the client.
_R_e_p_l_a_y_T_h_i_s_D_e_v_i_c_e
If the specified device is actively grabbed by
the client and is frozen as the result of an
event having been sent to the client (either
from the activation of a GrabDeviceButton or
from a previous AllowDeviceEvents with mode
SyncThisDevice, but not from a GrabDevice), the
grab is released and that event is completely
reprocessed. This time, however, the request
ignores any passive grabs at or above (toward
the root) that the grab-window of the grab just
released. The request has no effect if the
specified device is not grabbed by the client or
if it is not frozen as the result of an event.
_A_s_y_n_c_O_t_h_e_r_D_e_v_i_c_e_s
If the remaining devices are frozen by the
client, event processing for them continues as
usual. If the other devices are frozen multiple
times by the client on behalf of multiple grabs,
_A_s_y_n_c_O_t_h_e_r_D_e_v_i_c_e_s "thaws" for all.
_A_s_y_n_c_O_t_h_e_r_D_e_v_i_c_e_s has no effect if the devices
are not frozen by the client.
_S_y_n_c_A_l_l If all devices are frozen by the client, event
processing (for all devices) continues normally
until the next button or key event is reported
to the client for a grabbed device, at which
time all devices again appear to freeze.
However, if the reported event causes the grab
to be released, then the devices do not freeze.
If any device is still grabbed, then a
subsequent event for it will still cause all
devices to freeze. _S_y_n_c_A_l_l has no effect unless
all devices are frozen by the client. If any
device is frozen twice by the client on behalf
of two separate grabs, _S_y_n_c_A_l_l thaws for both.
A subsequent freeze for _S_y_n_c_A_l_l will only freeze
each device once.
_A_s_y_n_c_A_l_l If all devices are frozen by the client, event
processing for all devices continues normally.
If any device is frozen multiple times by the
client on behalf of multiple separate grabs,
_A_s_y_n_c_A_l_l thaws for all. _A_s_y_n_c_A_l_l has no effect
unless all devices are frozen by the client.
Page 2 (printed 4/30/98)
XXXXAAAAlllllllloooowwwwDDDDeeeevvvviiiicccceeeeEEEEvvvveeeennnnttttssss((((3333XXXX11111111))))XXXX VVVVeeeerrrrssssiiiioooonnnn 11111111 ((((RRRReeeelllleeeeaaaasssseeee 6666....3333))))XXXXAAAAlllllllloooowwwwDDDDeeeevvvviiiicccceeeeEEEEvvvveeeennnnttttssss((((3333XXXX11111111))))
_A_s_y_n_c_T_h_i_s_D_e_v_i_c_e, _S_y_n_c_T_h_i_s_D_e_v_i_c_e, and _R_e_p_l_a_y_T_h_i_s_D_e_v_i_c_e have
no effect on the processing of events from the remaining
devices. _A_s_y_n_c_O_t_h_e_r_D_e_v_i_c_e_s has no effect on the processing
of events from the specified device. When the event_mode is
_S_y_n_c_A_l_l or _A_s_y_n_c_A_l_l, the device parameter is ignored.
It is possible for several grabs of different devices by the
same or different clients to be active simultaneously. If a
device is frozen on behalf of any grab, no event processing
is performed for the device. It is possible for a single
device to be frozen because of several grabs. In this case,
the freeze must be released on behalf of each grab before
events can again be processed.
_X_A_l_l_o_w_D_e_v_i_c_e_E_v_e_n_t_s can generate a _B_a_d_D_e_v_i_c_e or _B_a_d_V_a_l_u_e
error.
DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS
_B_a_d_D_e_v_i_c_e An invalid device was specified. The specified
device does not exist or has not been opened by
this client via _X_O_p_e_n_I_n_p_u_t_D_e_v_i_c_e. This error
may also occur if the specified device is the X
keyboard or X pointer device.
_B_a_d_V_a_l_u_e An invalid mode was specified on the request.
SSSSEEEEEEEE AAAALLLLSSSSOOOO
XGrabDevice(3X11)
_P_r_o_g_r_a_m_m_i_n_g _W_i_t_h _X_l_i_b
Page 3 (printed 4/30/98)