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- XXXXttttAAAAppppppppAAAAddddddddSSSSiiiiggggnnnnaaaallll((((3333XXXXtttt))))XXXX VVVVeeeerrrrssssiiiioooonnnn 11111111 ((((RRRReeeelllleeeeaaaasssseeee 6666....6666)))) XXXXttttAAAAppppppppAAAAddddddddSSSSiiiiggggnnnnaaaallll((((3333XXXXtttt))))
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- NNNNAAAAMMMMEEEE
- XtAppAddSignal, XtRemoveSignal, XtNoticeSignal - register
- and remove a signal source
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- SSSSYYYYNNNNTTTTAAAAXXXX
- XtSignalId XtAppAddSignal(_a_p_p__c_o_n_t_e_x_t, _p_r_o_c, _c_l_i_e_n_t__d_a_t_a)
- XtAppContext _a_p_p__c_o_n_t_e_x_t;
- XtSignalCallbackProc _p_r_o_c;
- XtPointer _c_l_i_e_n_t__d_a_t_a;
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- void XtRemoveSignal(_i_d)
- XtSignalId _i_d;
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- void XtNoticeSignal(_i_d)
- XtSignalId _i_d)
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- AAAARRRRGGGGUUUUMMMMEEEENNNNTTTTSSSS
- _a_p_p__c_o_n_t_e_x_t
- Specifies the application context.
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- _c_l_i_e_n_t__d_a_t_a
- Specifies the argument that is to be passed to the
- specified procedure when a signal has been raised.
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- _i_d Specifies the ID returned from the corresponding
- _X_t_A_p_p_A_d_d_S_i_g_n_a_l call.
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- _p_r_o_c Specifies the procedure that is to be called when
- the signal has been raised.
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- The _X_t_A_p_p_A_d_d_S_i_g_n_a_l function initiates a mechanism for
- handling signals within the context of the Intrinsics. Prior
- to establishing an operating system dependent signal handler
- the application may call _X_t_A_p_p_A_d_d_S_i_g_n_a_l and store the
- returned _i_d in a place accessible to the signal handler.
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- Upon receipt of a signal from the operating system, the
- application may call _X_t_N_o_t_i_c_e_S_i_g_n_a_l passing the _i_d returned
- by the call to _X_t_A_p_p_A_d_d_S_i_g_n_a_l.
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- _X_t_N_o_t_i_c_e_S_i_g_n_a_l is the only Intrinsics function that can
- safely be called from a signal handler. If _X_t_N_o_t_i_c_e_S_i_g_n_a_l is
- called multiple times before the Intrinsics are able to
- invoke the registered callback, the callback is only called
- once. Logically the Intrinsics maintain ``pending'' for each
- registered callback. This flag is initially _F_a_l_s_e and is set
- to _T_r_u_e by _X_t_N_o_t_i_c_e_S_i_g_n_a_l; the Intrinsics invoke the
- callback whenever the flag is _T_r_u_e, and the flag is set to
- _F_a_l_s_e just before the callback is invoked.
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- The _X_t_R_e_m_o_v_e_S_i_g_n_a_l function is called to remove the
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- Page 1 (printed 10/3/02)
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- XXXXttttAAAAppppppppAAAAddddddddSSSSiiiiggggnnnnaaaallll((((3333XXXXtttt))))XXXX VVVVeeeerrrrssssiiiioooonnnn 11111111 ((((RRRReeeelllleeeeaaaasssseeee 6666....6666)))) XXXXttttAAAAppppppppAAAAddddddddSSSSiiiiggggnnnnaaaallll((((3333XXXXtttt))))
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-
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- specified Intrinsics signal handler. The client should
- disable the source of the signal before calling
- _X_t_R_e_m_o_v_e_S_i_g_n_a_l.
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- XtAppAddTimeOut(3Xt),XtAppAddInput(3Xt),XtAppAddWorkProc(3Xt)
- _X _T_o_o_l_k_i_t _I_n_t_r_i_n_s_i_c_s - _C _L_a_n_g_u_a_g_e _I_n_t_e_r_f_a_c_e
- _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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- Page 2 (printed 10/3/02)
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