📄 combobox.man
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an item is selected. The reason is XXmmCCRR__SSIINNGGLLEE__SSEELLEECCTT. The callbacks are NOT called when the user browses through the items in the list. XXmmNNsseelleeccttiioonnPPoolliiccyy This resource controls whether the user can dese- lect the currently selected item within a combo box. The default value is XXmmBBRROOWWSSEE__SSEELLEECCTT, so always one item gets selected if the combo box is editable. In the case of XXmmSSIINNGGLLEE__SSEELLEECCTT the user may deselect the current item either by clicking on it in the drop down list or pressing the key "Delete". Other values for XXmmNNsseelleeccttiioonnPPoolliiccyy are currently not allowed. (Multiple selections will be probably availabe with the next release.) XXmmNNsseelleeccttTThhrreesshhoolldd Specifies the amount of pixels the mouse must move until the selection of text is recognized in click and drag mode. XXmmNNsshhoowwLLaabbeell Specifies, whether a label containing text or a pixmap should be displayed on the left side of the combo box. This resource can only be specified dur- ing the creation of the combo box, afterwards it will have no effect. XXmmNNssoorrtteedd Specifies whether the items in the list are sorted or not In an unsorted list, the items are shown in the order in which they're put into the list. When adding an item to a sorted list, this item will be put at the right place (alphabetically sorted). XXmmNNssoorrttiinnggCCaallllbbaacckk Contains a list of callbacks that is called when- ever a new item is added to the combo box widget and XXmmNNssoorrtteedd is TTrruuee. The reason is XXmmCCRR__SSOORRTTIINNGG and the type of the structure whose address is passed to the callback is XXmmCCoommbbooBBooxxSSoorrttiinnggCCaallll-- bbaacckk--SSttrruucctt. For detailed information see the fol- lowing sections. XXmmNNssqquuaarreeAArrrrooww Controls the width of the arrow button in respect to its height. If this resource is TTrruuee the arrow button is always layed out square. Otherwise the arrow button's width will be approximatly 4/5th of its height.Version 1.31 20 March 1995 9XmComboBox(3Xm) Harry's Motif Tools XmComboBox(3Xm) XXmmNNssttaattiiccLLiisstt Controls whether the list is always statically dis- played right below the text input area of the combo box if set to TTrruuee. If you use a combo box with XXmmNNssttaattiiccLLiisstt set to TTrruuee and XXmmNNeeddiittaabbllee set to FFaallssee you should consider using a simple list wid- get instead. XXmmNNssttrriinnggDDiirreeccttiioonn Specifies the initial direction to draw the string (from the left to the right or in the opposite direction). The whole story seems to be incompre- hensible... therefore this resource is provided for completeness only. XXmmNNttwwmmHHaannddlliinnggOOnn If you have trouble with the list then this resource may help you. Set it to True, if the list gets hidden at the moment the mouse cursor enters the list. XXmmNNttooppIItteemmPPoossiittiioonn This resource is intended as an informal hint. It specifies the index of the item which is displayed at the visible top of the list. XXmmNNvvaalluuee Contains the text of the input field. This also concerns combo boxes which are not editable ( XXmmNNeeddiittaabbllee set to False). XXmmNNuunnsseelleeccttiioonnCCaallllbbaacckk Specifies a list of callbacks that is called when- ever the currently selected item is deselected and no other item gets selected. This callback is acti- vated only when XXmmNNsseelleeccttiioonnPPoolliiccyy is XXmmSSIINN-- GGLLEE__SSEELLEECCTT. The reason is XXmmCCRR__UUNNSSEELLEECCTT. The type of the structure whose address is passed to this callback is XXmmAAnnyyCCaallllbbaacckkSSttrruucctt. XXmmNNvvaalluuee Contains the text of the input field. This also concerns combo boxes which are not editable ( XXmmNNeeddiittaabbllee set to FFaallssee). XXmmNNvvaalluueeCChhaannggeeddCCaallllbbaacckk Specifies a list of callbacks to be called after text is deleted from or inserted into the text area of the combo box widget. The reason is XXmmCCRR__VVAALLUUEE__CCHHAANNGGEEDD. The type of the structure whose address is passed to this callback is XXmmAAnnyy-- CCaallllbbaacckkSSttrruucctt.Version 1.31 20 March 1995 10XmComboBox(3Xm) Harry's Motif Tools XmComboBox(3Xm) XXmmNNvviissiibblleeIItteemmCCoouunntt Specifies the number of items that can fit in the visible space of the list. The combo box uses this value to determine the height of its list. IInnhheerriitteedd RReessoouurrcceess XmComboBox inherits behaviour and resources from the fol- lowing superclasses. For a complete description of each resource, refer to the man page for that superclass. CCaallllbbaacckk IInnffoorrmmaattiioonn A pointer to the following structure is passed to the XXmmNNddrrooppDDoowwnnCCaallllbbaacckk callback: ttyyppeeddeeff ssttrruucctt {{ iinntt _r_e_a_s_o_n;; XXEEvveenntt **_e_v_e_n_t;; }} XXmmCCoommbbooBBooxxDDrrooppDDoowwnnCCaallllbbaacckkSSttrruucctt;; _r_e_a_s_o_n Within this structure, _r_e_a_s_o_n indicates the reason why the callback was activated. This can be XXmmCCRR__SSHHOOWW__LLIISSTT as well as XXmmCCRR__HHIIDDEE__LLIISSTT. A callback is called with the reason XXmmCCRR__SSHHOOWW__LLIISSTT just before the list is dropped down, whereas the callback is called with XXmmCCRR__HHIIDDEE__LLIISSTT after the list is hidden. _e_v_e_n_t Points to the XXEEvveenntt, which triggered the callback. May be NNUULLLL if the callback is triggered by a call to XXmmCCoommbbooBBooxxSShhoowwLLiisstt or XXmmCCoommbbooBBooxxHHiiddeeLLiisstt. A pointer to the following structure is passed to the XXmmNNaaccttiivvaatteeCCaallllbbaacckk callback: ttyyppeeddeeff ssttrruucctt {{ iinntt _r_e_a_s_o_n;; XXEEvveenntt **_e_v_e_n_t;; }} XXmmAAnnyyCCaallllbbaacckkSSttrruucctt;; _r_e_a_s_o_n Indicates why the callback was invoked. This is XXmmCCRR__AACCTTIIVVAATTEE for XXmmNNaaccttiivvaatteeCCaallll-- bbaacckk. _e_v_e_n_t Points to the XXEEvveenntt, which triggered the callback. A pointer to the following structure is passed to the XXmmNNsseelleeccttiioonnCCaallllbbaacckk and XXmmNNddeeffaauullttAAccttiioonnCCaallllbbaacckk: ttyyppeeddeeff ssttrruucctt {{ iinntt _r_e_a_s_o_n;;Version 1.31 20 March 1995 11XmComboBox(3Xm) Harry's Motif Tools XmComboBox(3Xm) XXEEvveenntt **_e_v_e_n_t;; XXmmSSttrriinngg _v_a_l_u_e;; iinntt _i_n_d_e_x;; }} XXmmCCoommbbooBBooxxSSeelleeccttiioonnCCaallllbbaacckkSSttrruucctt,, XXmmCCoommbbooBBooxxDDeeffaauullttAAcc-- ttiioonnCCaallllbbaacckkSSttrruucctt;; _r_e_a_s_o_n Within this structure, _r_e_a_s_o_n indicates the reason why the callback was activated. At this time, the reason can be either XXmmCCRR__SSIINNGGLLEE__SSEELLEECCTT or XXmmCCRR__BBRROOWWSSEE__SSEELLEECCTT depending on the setting of XXmmNNsseelleeccttiioonn-- PPoolliiccyy. It indicates that the user selected a (potentially new) item in the list. Whether this callback is activated every time the user moves into a new item of the list or only when the user releases the mouse button is controlled through the setting of XXmmNNaauuttoommaattiiccSSeelleeccttiioonn. _e_v_e_n_t Points to the XXEEvveenntt, which triggered the callback. _v_a_l_u_e Points to a XXmmSSttrriinngg, which contains the text of the current selected item. This XXmmSSttrriinngg must never be freed or changed by the called program code! _i_n_d_e_x Index (starting from 1) of the currently selected item in the list. A pointer to the following structure is passed to the XXmmNNuunnsseelleeccttiioonnCCaallllbbaacckk callback: ttyyppeeddeeff ssttrruucctt {{ iinntt _r_e_a_s_o_n;; XXEEvveenntt **_e_v_e_n_t;; }} XXmmCCoommbbooBBooxxUUnnsseelleeccttiioonnCCaallllbbaacckkSSttrruucctt;; _r_e_a_s_o_n Indicates why the callback was invoked. This is XXmmCCRR__UUNNSSEELLEECCTT. _e_v_e_n_t Points to the XXEEvveenntt, which triggered the callback. A pointer to the following structure is passed to the XXmmNNmmooddiiffyyVVeerriiffyyCCaallllbbaacckk and XXmmNNmmoottiioonnVVeerriiffyyCCaallllbbaacckk call- backs: ttyyppeeddeeff ssttrruucctt {{ iinntt _r_e_a_s_o_n;; XXEEvveenntt **_e_v_e_n_t;; BBoooolleeaann _d_o_i_t;; PPoossiittiioonn _c_u_r_r_I_n_s_e_r_t_, _n_e_w_I_n_s_e_r_t;; PPoossiittiioonn _s_t_a_r_t_P_o_s_, _e_n_d_P_o_s;;Version 1.31 20 March 1995 12XmComboBox(3Xm) Harry's Motif Tools XmComboBox(3Xm) XXmmTTeexxttBBlloocckk _t_e_x_t;; }} XXmmCCoommbbooBBooxxTTeexxttVVeerriiffyyCCaallllbbaacckkSSttrruucctt,, **XXmmCCoommbbooBBooxxTTeexxttVVeerrii-- ffyyPPttrr;; _r_e_a_s_o_n Indicates the reason why the callback was activated. This can be either⌨️ 快捷键说明
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