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- XXXXttttCCCCoooonnnnvvvveeeerrrrttttAAAAnnnnddddSSSSttttoooorrrreeee((((3333XXXXtttt))))XXXX VVVVeeeerrrrssssiiiioooonnnn 11111111 ((((RRRReeeelllleeeeaaaasssseeee 6666....3333))))XXXXttttCCCCoooonnnnvvvveeeerrrrttttAAAAnnnnddddSSSSttttoooorrrreeee((((3333XXXXtttt))))
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- NNNNAAAAMMMMEEEE
- XtConvertAndStore, XtCallConverter - invoke resource
- converters
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- SSSSYYYYNNNNTTTTAAAAXXXX
- Boolean XtConvertAndStore(_w_i_d_g_e_t, _f_r_o_m__t_y_p_e, _f_r_o_m, _t_o__t_y_p_e,
- _t_o__i_n__o_u_t)
- Widget _w_i_d_g_e_t;
- String _f_r_o_m__t_y_p_e;
- XrmValuePtr _f_r_o_m;
- String _t_o__t_y_p_e;
- XrmValuePtr _t_o__i_n__o_u_t;
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- void XtCallConverter(_d_p_y, _c_o_n_v_e_r_t_e_r, _a_r_g_s, _n_u_m__a_r_g_s, _f_r_o_m,
- _t_o__i_n__o_u_t, _c_a_c_h_e__r_e_f__r_e_t_u_r_n)
- Display* _d_p_y;
- XtConverter _c_o_n_v_e_r_t_e_r;
- XrmValuePtr _a_r_g_s;
- Cardinal _n_u_m__a_r_g_s;
- XrmValuePtr _f_r_o_m;
- XrmValuePtr _t_o__i_n__o_u_t;
- XtCacheRef* _c_a_c_h_e__r_e_f__r_e_t_u_r_n;
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- AAAARRRRGGGGUUUUMMMMEEEENNNNTTTTSSSS
- _a_r_g_s Specifies the argument list that contains the
- additional arguments needed to perform the
- conversion, or NULL.
-
- _c_o_n_v_e_r_t_e_r Specifies the conversion procedure that is to be
- called.
-
- _f_r_o_m Specifies the value to be converted.
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- _f_r_o_m__t_y_p_e Specifies the source type.
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- _n_u_m__a_r_g_s Specifies the number of additional arguments
- (often zero).
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- _t_o__t_y_p_e Specifies the destination type.
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- _t_o__i_n__o_u_t Returns the converted value.
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- _w_i_d_g_e_t Specifies the widget to use for additional
- arguments, if any are needed, and the destroy
- callback list.
-
- _d_p_y Specifies the display with which the conversion is
- to be associated.
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- The _X_t_C_o_n_v_e_r_t_A_n_d_S_t_o_r_e function looks up the type converter
- registered to convert from_type to to_type, computes any
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- Page 1 (printed 4/30/98)
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- XXXXttttCCCCoooonnnnvvvveeeerrrrttttAAAAnnnnddddSSSSttttoooorrrreeee((((3333XXXXtttt))))XXXX VVVVeeeerrrrssssiiiioooonnnn 11111111 ((((RRRReeeelllleeeeaaaasssseeee 6666....3333))))XXXXttttCCCCoooonnnnvvvveeeerrrrttttAAAAnnnnddddSSSSttttoooorrrreeee((((3333XXXXtttt))))
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- additional arguments needed, and then calls _X_t_C_a_l_l_C_o_n_v_e_r_t_e_r.
- (or _X_t_D_i_r_e_c_t_C_o_n_v_e_r_t if an old-style converter was registered
- with _X_t_A_d_d_C_o_n_v_e_r_t_e_r or _X_t_A_p_p_A_d_d_C_o_n_v_e_r_t_e_r. ) with the from
- and to_in_out arguments.
-
- The _X_t_C_a_l_l_C_o_n_v_e_r_t_e_r function looks up the specified type
- converter in the application context associated with the
- display and, if the converter was not registered or was
- registered with cache type _X_t_C_a_c_h_e_A_l_l or _X_t_C_a_c_h_e_B_y_D_i_s_p_l_a_y
- looks in the conversion cache to see if this conversion
- procedure has been called with the specified conversion
- arguments. If so, it checks the success status of the prior
- call, and if the conversion failed, _X_t_C_a_l_l_C_o_n_v_e_r_t_e_r returns
- _F_a_l_s_e immediately; otherwise it checks the size specified in
- the _t_o argument and, if it is greater than or equal to the
- size stored in the cache, copies the information stored in
- the cache into the location specified by _t_o->_a_d_d_r, stores
- the cache size into _t_o->_s_i_z_e, and returns _T_r_u_e. If the size
- specified in the _t_o argument is smaller than the size stored
- in the cache, _X_t_C_a_l_l_C_o_n_v_e_r_t_e_r copies the cache size into the
- _t_o->_s_i_z_e and returns _F_a_l_s_e. If the converter was registered
- with cache type _X_t_C_a_c_h_e_N_o_n_e or no value was found in the
- conversion cache, _X_t_C_a_l_l_C_o_n_v_e_r_t_e_r calls the converter and,
- if it was not registered with cache type _X_t_C_a_c_h_e_N_o_n_e, enters
- the result into the cache. _X_t_C_a_l_l_C_o_n_v_e_r_t_e_r then returns
- what the converter returned.
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- The _c_a_c_h_e__r_e_f__r_e_t_u_r_n field specifies storage allocated by
- the caller in which an opaque value will be stored. If the
- type converter has been registered with the _X_t_C_a_c_h_e_R_e_f_C_o_u_n_t
- modifier and if the value returned in in _c_a_c_h_e__r_e_f__r_e_t_u_r_n is
- non-NULL, then the call should store the _c_a_c_h_e__r_e_f__r_e_t_u_r_n
- value in order to decrement the reference count when the
- converted value is no longer required. The _c_a_c_h_e__r_e_f__r_e_t_u_r_n
- argument should be ULL if the caller is unwilling or unable
- to store the value.
-
- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- XtAppReleaseCacheRefs(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 4/30/98)
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