IRIX Base Documentation 2002 November

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mmmmeeeennnnuuuu((((3333TTTTkkkk)))) mmmmeeeennnnuuuu((((3333TTTTkkkk)))) NNNNAAAAMMMMEEEE menu - Create and manipulate menu widgets SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS mmmmeeeennnnuuuu _p_a_t_h_N_a_m_e ?_o_p_t_i_o_n_s? SSSSTTTTAAAANNNNDDDDAAAARRRRDDDD OOOOPPPPTTTTIIIIOOOONNNNSSSS aaaaccccttttiiiivvvveeeeBBBBaaaacccckkkkggggrrrroooouuuunnnndddd bbbbaaaacccckkkkggggrrrroooouuuunnnndddd ddddiiiissssaaaabbbblllleeeeddddFFFFoooorrrreeeeggggrrrroooouuuunnnnddddrrrreeeelllliiiieeeeffff | aaaaccccttttiiiivvvveeeeBBBBoooorrrrddddeeeerrrrWWWWiiiiddddtttthhhh bbbboooorrrrddddeeeerrrrWWWWiiiiddddtttthhhh ffffoooonnnnttttttttaaaakkkkeeeeFFFFooooccccuuuussss aaaaccccttttiiiivvvveeeeFFFFoooorrrreeeeggggrrrroooouuuunnnndddd ccccuuuurrrrssssoooorrrr ffffoooorrrreeeeggggrrrroooouuuunnnndddd See the ``options'' manual entry for details on the standard options. WWWWIIIIDDDDGGGGEEEETTTT----SSSSPPPPEEEECCCCIIIIFFFFIIIICCCC OOOOPPPPTTTTIIIIOOOONNNNSSSS Name: ppppoooossssttttCCCCoooommmmmmmmaaaannnndddd Class: CCCCoooommmmmmmmaaaannnndddd Command-Line Switch:----ppppoooossssttttccccoooommmmmmmmaaaannnndddd If this option is specified then it provides a Tcl command to execute each time the menu is posted. The command is invoked by the ppppoooosssstttt widget command before posting the menu. Name: sssseeeelllleeeeccccttttCCCCoooolllloooorrrr Class: BBBBaaaacccckkkkggggrrrroooouuuunnnndddd | Command-Line Switch:----sssseeeelllleeeeccccttttccccoooolllloooorrrr | For menu entries that are check buttons or radio buttons, this option specifies the color to display in the indicator when the check button or radio button is selected. Name: tttteeeeaaaarrrrOOOOffffffff | Class: TTTTeeeeaaaarrrrOOOOffffffff | Command-Line Switch:----tttteeeeaaaarrrrooooffffffff | This option must have a proper boolean value, which specifies | whether or not the menu should include a tear-off entry at the top. | If so, it will exist as entry 0 of the menu and the other entries | will number starting at 1. The default menu bindings arrange for | the menu to be torn off when the tear-off entry is invoked. IIIINNNNTTTTRRRROOOODDDDUUUUCCCCTTTTIIIIOOOONNNN The mmmmeeeennnnuuuu command creates a new top-level window (given by the _p_a_t_h_N_a_m_e argument) and makes it into a menu widget. Additional options, described above, may be specified on the command line or in the option database to configure aspects of the menu such as its colors and font. The mmmmeeeennnnuuuu command returns its _p_a_t_h_N_a_m_e argument. At the time this command is invoked, there must not exist a window named _p_a_t_h_N_a_m_e, but _p_a_t_h_N_a_m_e's parent must exist. PPPPaaaaggggeeee 1111 mmmmeeeennnnuuuu((((3333TTTTkkkk)))) mmmmeeeennnnuuuu((((3333TTTTkkkk)))) A menu is a widget that displays a collection of one-line entries arranged in a column. There exist several different types of entries, each with different properties. Entries of different types may be combined in a single menu. Menu entries are not the same as entry widgets. In fact, menu entries are not even distinct widgets; the entire menu is one widget. Menu entries are displayed with up to three separate fields. The main | field is a label in the form of a text string, a bitmap, or an image, | controlled by the ----llllaaaabbbbeeeellll, ----bbbbiiiittttmmmmaaaapppp, and ----iiiimmmmaaaaggggeeee options for the entry. If the ----aaaacccccccceeeelllleeeerrrraaaattttoooorrrr option is specified for an entry then a second textual field is displayed to the right of the label. The accelerator typically describes a keystroke sequence that may be typed in the application to cause the same result as invoking the menu entry. The third field is an _i_n_d_i_c_a_t_o_r. The indicator is present only for checkbutton or radiobutton entries. It indicates whether the entry is selected or not, and is displayed to the left of the entry's string. In normal use, an entry becomes active (displays itself differently) whenever the mouse pointer is over the entry. If a mouse button is released over the entry then the entry is _i_n_v_o_k_e_d. The effect of invocation is different for each type of entry; these effects are described below in the sections on individual entries. Entries may be _d_i_s_a_b_l_e_d, which causes their labels and accelerators to be displayed with dimmer colors. The default menu bindings will not allow a| disabled entry to be activated or invoked. Disabled entries may be re- enabled, at which point it becomes possible to activate and invoke them again. CCCCOOOOMMMMMMMMAAAANNNNDDDD EEEENNNNTTTTRRRRIIIIEEEESSSS The most common kind of menu entry is a command entry, which behaves much like a button widget. When a command entry is invoked, a Tcl command is executed. The Tcl command is specified with the ----ccccoooommmmmmmmaaaannnndddd option. SSSSEEEEPPPPAAAARRRRAAAATTTTOOOORRRR EEEENNNNTTTTRRRRIIIIEEEESSSS A separator is an entry that is displayed as a horizontal dividing line. A separator may not be activated or invoked, and it has no behavior other than its display appearance. CCCCHHHHEEEECCCCKKKKBBBBUUUUTTTTTTTTOOOONNNN EEEENNNNTTTTRRRRIIIIEEEESSSS A checkbutton menu entry behaves much like a checkbutton widget. When it is invoked it toggles back and forth between the selected and deselected states. When the entry is selected, a particular value is stored in a particular global variable (as determined by the ----oooonnnnvvvvaaaalllluuuueeee and ----vvvvaaaarrrriiiiaaaabbbblllleeee options for the entry); when the entry is deselected another value (determined by the ----ooooffffffffvvvvaaaalllluuuueeee option) is stored in the global variable. An indicator box is displayed to the left of the label in a checkbutton entry. If the entry is selected then the indicator's center is displayed PPPPaaaaggggeeee 2222 mmmmeeeennnnuuuu((((3333TTTTkkkk)))) mmmmeeeennnnuuuu((((3333TTTTkkkk)))) in the color given by the ----sssseeeelllleeeeccccttttccccoooolllloooorrrr option for the entry; otherwise the indicator's center is displayed in the background color for the menu. If a ----ccccoooommmmmmmmaaaannnndddd option is specified for a checkbutton entry, then its value is evaluated as a Tcl command each time the entry is invoked; this happens after toggling the entry's selected state. RRRRAAAADDDDIIIIOOOOBBBBUUUUTTTTTTTTOOOONNNN EEEENNNNTTTTRRRRIIIIEEEESSSS A radiobutton menu entry behaves much like a radiobutton widget. Radiobutton entries are organized in groups of which only one entry may be selected at a time. Whenever a particular entry becomes selected it stores a particular value into a particular global variable (as determined by the ----vvvvaaaalllluuuueeee and ----vvvvaaaarrrriiiiaaaabbbblllleeee options for the entry). This action causes any previously-selected entry in the same group to deselect itself. Once an entry has become selected, any change to the entry's associated variable will cause the entry to deselect itself. Grouping of radiobutton entries is determined by their associated variables: if two entries have the same associated variable then they are in the same group. An indicator diamond is displayed to the left of the label in each radiobutton entry. If the entry is selected then the indicator's center is displayed in the color given by the ----sssseeeelllleeeeccccttttccccoooolllloooorrrr option for the entry; otherwise the indicator's center is displayed in the background color for the menu. If a ----ccccoooommmmmmmmaaaannnndddd option is specified for a radiobutton entry, then its value is evaluated as a Tcl command each time the entry is invoked; this happens after selecting the entry. CCCCAAAASSSSCCCCAAAADDDDEEEE EEEENNNNTTTTRRRRIIIIEEEESSSS A cascade entry is one with an associated menu (determined by the ----mmmmeeeennnnuuuu option). Cascade entries allow the construction of cascading menus. The| ppppoooossssttttccccaaaassssccccaaaaddddeeee widget command can be used to post and unpost the associated | menu just to the right of the cascade entry. The associated menu must be| a child of the menu containing the cascade entry (this is needed in order| for menu traversal to work correctly). A cascade entry posts its associated menu by invoking a Tcl command of the form _m_e_n_u ppppoooosssstttt _x _y where _m_e_n_u is the path name of the associated menu, and _x and _y are the root-window coordinates of the upper-right corner of the cascade entry. The lower-level menu is unposted by executing a Tcl command with the form _m_e_n_u uuuunnnnppppoooosssstttt where _m_e_n_u is the name of the associated menu. If a ----ccccoooommmmmmmmaaaannnndddd option is specified for a cascade entry then it is evaluated as a Tcl command whenever the entry is invoked. | PPPPaaaaggggeeee 3333 mmmmeeeennnnuuuu((((3333TTTTkkkk)))) mmmmeeeennnnuuuu((((3333TTTTkkkk)))) TTTTEEEEAAAARRRR----OOOOFFFFFFFF EEEENNNNTTTTRRRRIIIIEEEESSSS A tear-off entry appears at the top of the menu if enabled with the | tttteeeeaaaarrrrOOOOffffffff option. It is not like other menu entries in that it cannot be | created with the aaaadddddddd widget command and cannot be deleted with the ddddeeeelllleeeetttteeee| widget command. When a tear-off entry is created it appears as a dashed | line at the top of the menu. Under the default bindings, invoking the | tear-off entry causes a torn-off copy to be made of the menu and all of | its submenus. WWWWIIIIDDDDGGGGEEEETTTT CCCCOOOOMMMMMMMMAAAANNNNDDDD The mmmmeeeennnnuuuu command creates a new Tcl command whose name is _p_a_t_h_N_a_m_e. This command may be used to invoke various operations on the widget. It has the following general form: _p_a_t_h_N_a_m_e _o_p_t_i_o_n ?_a_r_g _a_r_g ...? _O_p_t_i_o_n and the _a_r_gs determine the exact behavior of the command. Many of the widget commands for a menu take as one argument an indicator of which entry of the menu to operate on. These indicators are called _i_n_d_e_xes and may be specified in any of the following forms: _n_u_m_b_e_r Specifies the entry numerically, where 0 corresponds to the top-most entry of the menu, 1 to the entry below it, and so on. aaaaccccttttiiiivvvveeee Indicates the entry that is currently active. If no entry is active then this form is equivalent to nnnnoooonnnneeee. This form may not be abbreviated. eeeennnndddd Indicates the bottommost entry in the menu. If there are no | entries in the menu then this form is equivalent to nnnnoooonnnneeee. | This form may not be abbreviated. llllaaaasssstttt Same as eeeennnndddd. nnnnoooonnnneeee Indicates ``no entry at all''; this is used most commonly with the aaaaccccttttiiiivvvvaaaatttteeee option to deactivate all the entries in the menu. In most cases the specification of nnnnoooonnnneeee causes nothing to happen in the widget command. This form may not be abbreviated. @@@@_n_u_m_b_e_r In this form, _n_u_m_b_e_r is treated as a y-coordinate in the | menu's window; the entry closest to that y-coordinate is | used. For example, ``@@@@0000'' indicates the top-most entry in the window. _p_a_t_t_e_r_n If the index doesn't satisfy one of the above forms then this form is used. _P_a_t_t_e_r_n is pattern-matched against the label of each entry in the menu, in order from the top down, until a matching entry is found. The rules of TTTTccccllll____SSSSttttrrrriiiinnnnggggMMMMaaaattttcccchhhh are PPPPaaaaggggeeee 4444 mmmmeeeennnnuuuu((((3333TTTTkkkk)))) mmmmeeeennnnuuuu((((3333TTTTkkkk)))) used. The following widget commands are possible for menu widgets: _p_a_t_h_N_a_m_e aaaaccccttttiiiivvvvaaaatttteeee _i_n_d_e_x Change the state of the entry indicated by _i_n_d_e_x to aaaaccccttttiiiivvvveeee and redisplay it using its active colors. Any previously-active entry is deactivated. If _i_n_d_e_x is specified as nnnnoooonnnneeee, or if the specified entry is disabled, then the menu ends up with no active entry. Returns an empty string. _p_a_t_h_N_a_m_e aaaadddddddd _t_y_p_e ?_o_p_t_i_o_n _v_a_l_u_e _o_p_t_i_o_n _v_a_l_u_e ...? Add a new entry to the bottom of the menu. The new entry's type is given by _t_y_p_e and must be one of ccccaaaassssccccaaaaddddeeee, cccchhhheeeecccckkkkbbbbuuuuttttttttoooonnnn, ccccoooommmmmmmmaaaannnndddd, rrrraaaaddddiiiioooobbbbuuuuttttttttoooonnnn, or sssseeeeppppaaaarrrraaaattttoooorrrr, or a unique abbreviation of one of the above. If additional arguments are present, they specify any of the following options: ----aaaaccccttttiiiivvvveeeebbbbaaaacccckkkkggggrrrroooouuuunnnndddd _v_a_l_u_e Specifies a background color to use for displaying this entry when it is active. If this option is specified as an empty string (the default), then the aaaaccccttttiiiivvvveeeeBBBBaaaacccckkkkggggrrrroooouuuunnnndddd option for the overall menu is used. If the ttttkkkk____ssssttttrrrriiiiccccttttMMMMoooottttiiiiffff variable has been | set to request strict Motif compliance, then this option is | ignored and the ----bbbbaaaacccckkkkggggrrrroooouuuunnnndddd option is used in its place. This option is not available for separator or tear-off entries. ----aaaaccccttttiiiivvvveeeeffffoooorrrreeeeggggrrrroooouuuunnnndddd _v_a_l_u_e Specifies a foreground color to use for displaying this entry when it is active. If this option is specified as an empty string (the default), then the aaaaccccttttiiiivvvveeeeFFFFoooorrrreeeeggggrrrroooouuuunnnndddd option for the overall menu is used. This option is not available for separator or tear-off entries. ----aaaacccccccceeeelllleeeerrrraaaattttoooorrrr _v_a_l_u_e Specifies a string to display at the right side of the menu entry. Normally describes an accelerator keystroke sequence that may be typed to invoke the same function as the menu entry. This option is not available for separator or tear-off entries. ----bbbbaaaacccckkkkggggrrrroooouuuunnnndddd _v_a_l_u_e Specifies a background color to use for displaying this entry when it is in the normal state (neither active nor disabled). If this option is specified as an empty string (the default), then the bbbbaaaacccckkkkggggrrrroooouuuunnnndddd option for the overall menu is used. This option is not available for separator or tear-off entries. ----bbbbiiiittttmmmmaaaapppp _v_a_l_u_e Specifies a bitmap to display in the menu instead of a textual label, in any of the forms accepted by TTTTkkkk____GGGGeeeettttBBBBiiiittttmmmmaaaapppp. This option overrides the ----llllaaaabbbbeeeellll option but may be reset to an empty PPPPaaaaggggeeee 5555 mmmmeeeennnnuuuu((((3333TTTTkkkk)))) mmmmeeeennnnuuuu((((3333TTTTkkkk)))) string to enable a textual label to be displayed. If a ----iiiimmmmaaaaggggeeee option has been specified, it overrides ----bbbbiiiittttmmmmaaaapppp. This option is not available for separator or tear-off entries. ----ccccoooommmmmmmmaaaannnndddd _v_a_l_u_e For command, checkbutton, and radiobutton entries, specifies a Tcl command to execute when the menu entry is invoked. For cascade entries, specifies a Tcl command to execute when the entry is activated (i.e. just before its submenu is posted). Not available for separator or tear-off entries. ----ffffoooonnnntttt _v_a_l_u_e Specifies the font to use when drawing the label or accelerator string in this entry. If this option is specified as an empty string (the default) then the ffffoooonnnntttt option for the overall menu is used. This option is not available for separator or tear- off entries. ----ffffoooorrrreeeeggggrrrroooouuuunnnndddd _v_a_l_u_e Specifies a foreground color to use for displaying this entry when it is in the normal state (neither active nor disabled). If this option is specified as an empty string (the default), then the ffffoooorrrreeeeggggrrrroooouuuunnnndddd option for the overall menu is used. This option is not available for separator or tear-off entries. ----iiiimmmmaaaaggggeeee _v_a_l_u_e Specifies an image to display in the menu instead of a text | string or bitmap The image must have been created by some | previous invocation of iiiimmmmaaaaggggeeee ccccrrrreeeeaaaatttteeee. This option overrides the| ----llllaaaabbbbeeeellll and ----bbbbiiiittttmmmmaaaapppp options but may be reset to an empty string | to enable a textual or bitmap label to be displayed. This | option is not available for separator or tear-off entries. ----iiiinnnnddddiiiiccccaaaattttoooorrrroooonnnn _v_a_l_u_e Available only for checkbutton and radiobutton entries. _V_a_l_u_e | is a boolean that determines whether or not the indicator | should be displayed. ----llllaaaabbbbeeeellll _v_a_l_u_e Specifies a string to display as an identifying label in the menu entry. Not available for separator or tear-off entries. ----mmmmeeeennnnuuuu _v_a_l_u_e Available only for cascade entries. Specifies the path name of the submenu associated with this entry. The submenu must be a | child of the menu. ----ooooffffffffvvvvaaaalllluuuueeee _v_a_l_u_e Available only for checkbutton entries. Specifies the value to store in the entry's associated variable when the entry is deselected. PPPPaaaaggggeeee 6666 mmmmeeeennnnuuuu((((3333TTTTkkkk)))) mmmmeeeennnnuuuu((((3333TTTTkkkk)))) ----oooonnnnvvvvaaaalllluuuueeee _v_a_l_u_e Available only for checkbutton entries. Specifies the value to store in the entry's associated variable when the entry is selected. ----sssseeeelllleeeeccccttttccccoooolllloooorrrr _v_a_l_u_e Available only for checkbutton and radiobutton entries. | Specifies the color to display in the indicator when the entry | is selected. If the value is an empty string (the default) | then the sssseeeelllleeeeccccttttCCCCoooolllloooorrrr option for the menu determines the | indicator color. ----sssseeeelllleeeeccccttttiiiimmmmaaaaggggeeee _v_a_l_u_e Available only for checkbutton and radiobutton entries. | Specifies an image to display in the entry (in place of the | ----iiiimmmmaaaaggggeeee option) when it is selected. _V_a_l_u_e is the name of an | image, which must have been created by some previous invocation| of iiiimmmmaaaaggggeeee ccccrrrreeeeaaaatttteeee. This option is ignored unless the ----iiiimmmmaaaaggggeeee | option has been specified. ----ssssttttaaaatttteeee _v_a_l_u_e Specifies one of three states for the entry: nnnnoooorrrrmmmmaaaallll, aaaaccccttttiiiivvvveeee, or ddddiiiissssaaaabbbblllleeeedddd. In normal state the entry is displayed using the ffffoooorrrreeeeggggrrrroooouuuunnnndddd option for the menu and the bbbbaaaacccckkkkggggrrrroooouuuunnnndddd option from the entry or the menu. The active state is typically used when the pointer is over the entry. In active state the entry is displayed using the aaaaccccttttiiiivvvveeeeFFFFoooorrrreeeeggggrrrroooouuuunnnndddd option for the menu along with the aaaaccccttttiiiivvvveeeebbbbaaaacccckkkkggggrrrroooouuuunnnndddd option from the entry. Disabled state means that the entry should be insensitive: the default | bindings will refuse to activate or invoke the entry. In this state the entry is displayed according to the ddddiiiissssaaaabbbblllleeeeddddFFFFoooorrrreeeeggggrrrroooouuuunnnndddd option for the menu and the bbbbaaaacccckkkkggggrrrroooouuuunnnndddd option from the entry. This option is not available for separator entries. ----uuuunnnnddddeeeerrrrlllliiiinnnneeee _v_a_l_u_e Specifies the integer index of a character to underline in the entry. This option is also queried by the default bindings and used to implement keyboard traversal. 0 corresponds to the first character of the text displayed in the entry, 1 to the next character, and so on. If a bitmap or image is displayed in the entry then this option is ignored. This option is not available for separator or tear-off entries. ----vvvvaaaalllluuuueeee _v_a_l_u_e Available only for radiobutton entries. Specifies the value to store in the entry's associated variable when the entry is selected. ----vvvvaaaarrrriiiiaaaabbbblllleeee _v_a_l_u_e Available only for checkbutton and radiobutton entries. Specifies the name of a global value to set when the entry is PPPPaaaaggggeeee 7777 mmmmeeeennnnuuuu((((3333TTTTkkkk)))) mmmmeeeennnnuuuu((((3333TTTTkkkk)))) selected. For checkbutton entries the variable is also set when the entry is deselected. For radiobutton entries, changing the variable causes the currently-selected entry to deselect itself. The aaaadddddddd widget command returns an empty string. _p_a_t_h_N_a_m_e ccccggggeeeetttt _o_p_t_i_o_n Returns the current value of the configuration option given by | _o_p_t_i_o_n. _O_p_t_i_o_n may have any of the values accepted by the mmmmeeeennnnuuuu | command. _p_a_t_h_N_a_m_e ccccoooonnnnffffiiiigggguuuurrrreeee ?_o_p_t_i_o_n? ?_v_a_l_u_e _o_p_t_i_o_n _v_a_l_u_e ...? Query or modify the configuration options of the widget. If no _o_p_t_i_o_n is specified, returns a list describing all of the available options for _p_a_t_h_N_a_m_e (see TTTTkkkk____CCCCoooonnnnffffiiiigggguuuurrrreeeeIIIInnnnffffoooo for information on the format of this list). If _o_p_t_i_o_n is specified with no _v_a_l_u_e, then the command returns a list describing the one named option (this list will be identical to the corresponding sublist of the value returned if no _o_p_t_i_o_n is specified). If one or more _o_p_t_i_o_n-_v_a_l_u_e pairs are specified, then the command modifies the given widget option(s) to have the given value(s); in this case the command returns an empty string. _O_p_t_i_o_n may have any of the values accepted by the mmmmeeeennnnuuuu command. _p_a_t_h_N_a_m_e ddddeeeelllleeeetttteeee _i_n_d_e_x_1 ?_i_n_d_e_x_2? Delete all of the menu entries between _i_n_d_e_x_1 and _i_n_d_e_x_2 inclusive. If _i_n_d_e_x_2 is omitted then it defaults to _i_n_d_e_x_1. Attempts to delete| a tear-off menu entry are ignored (instead, you should change the | tttteeeeaaaarrrrOOOOffffffff option to remove the tear-off entry). _p_a_t_h_N_a_m_e eeeennnnttttrrrryyyyccccggggeeeetttt _i_n_d_e_x _o_p_t_i_o_n Returns the current value of a configuration option for the entry | given by _i_n_d_e_x. _O_p_t_i_o_n may have any of the values accepted by the | aaaadddddddd widget command. _p_a_t_h_N_a_m_e eeeennnnttttrrrryyyyccccoooonnnnffffiiiigggguuuurrrreeee _i_n_d_e_x ?_o_p_t_i_o_n_s? This command is similar to the ccccoooonnnnffffiiiigggguuuurrrreeee command, except that it applies to the options for an individual entry, whereas ccccoooonnnnffffiiiigggguuuurrrreeee applies to the options for the menu as a whole. _O_p_t_i_o_n_s may have any of the values accepted by the aaaadddddddd widget command. If _o_p_t_i_o_n_s are specified, options are modified as indicated in the command and the command returns an empty string. If no _o_p_t_i_o_n_s are specified, returns a list describing the current options for entry _i_n_d_e_x (see TTTTkkkk____CCCCoooonnnnffffiiiigggguuuurrrreeeeIIIInnnnffffoooo for information on the format of this list). _p_a_t_h_N_a_m_e iiiinnnnddddeeeexxxx _i_n_d_e_x Returns the numerical index corresponding to _i_n_d_e_x, or nnnnoooonnnneeee if _i_n_d_e_x was specified as nnnnoooonnnneeee. PPPPaaaaggggeeee 8888 mmmmeeeennnnuuuu((((3333TTTTkkkk)))) mmmmeeeennnnuuuu((((3333TTTTkkkk)))) _p_a_t_h_N_a_m_e iiiinnnnsssseeeerrrrtttt _i_n_d_e_x _t_y_p_e ?_o_p_t_i_o_n _v_a_l_u_e _o_p_t_i_o_n _v_a_l_u_e ...? Same as the aaaadddddddd widget command except that it inserts the new entry | just before the entry given by _i_n_d_e_x, instead of appending to the | end of the menu. The _t_y_p_e, _o_p_t_i_o_n, and _v_a_l_u_e arguments have the | same interpretation as for the aaaadddddddd widget command. It is not | possible to insert new menu entries before the tear-off entry, if | the menu has one. _p_a_t_h_N_a_m_e iiiinnnnvvvvooookkkkeeee _i_n_d_e_x Invoke the action of the menu entry. See the sections on the individual entries above for details on what happens. If the menu entry is disabled then nothing happens. If the entry has a command associated with it then the result of that command is returned as the result of the iiiinnnnvvvvooookkkkeeee widget command. Otherwise the result is an empty string. Note: invoking a menu entry does not automatically unpost the menu; the default bindings normally take care of this before invoking the iiiinnnnvvvvooookkkkeeee widget command. _p_a_t_h_N_a_m_e ppppoooosssstttt _x _y Arrange for the menu to be displayed on the screen at the root- window coordinates given by _x and _y. These coordinates are adjusted if necessary to guarantee that the entire menu is visible on the screen. This command normally returns an empty string. If the ppppoooossssttttCCCCoooommmmmmmmaaaannnndddd option has been specified, then its value is executed as a Tcl script before posting the menu and the result of that script is returned as the result of the ppppoooosssstttt widget command. If an error returns while executing the command, then the error is returned without posting the menu. _p_a_t_h_N_a_m_e ppppoooossssttttccccaaaassssccccaaaaddddeeee _i_n_d_e_x Posts the submenu associated with the cascade entry given by _i_n_d_e_x, | and unposts any previously posted submenu. If _i_n_d_e_x doesn't | correspond to a cascade entry, or if _p_a_t_h_N_a_m_e isn't posted, the | command has no effect except to unpost any currently posted submenu. _p_a_t_h_N_a_m_e ttttyyyyppppeeee _i_n_d_e_x Returns the type of the menu entry given by _i_n_d_e_x. This is the _t_y_p_e| argument passed to the aaaadddddddd widget command when the entry was | created, such as ccccoooommmmmmmmaaaannnndddd or sssseeeeppppaaaarrrraaaattttoooorrrr, or tttteeeeaaaarrrrooooffffffff for a tear-off | entry. _p_a_t_h_N_a_m_e uuuunnnnppppoooosssstttt Unmap the window so that it is no longer displayed. If a lower- level cascaded menu is posted, unpost that menu. Returns an empty string. _p_a_t_h_N_a_m_e yyyyppppoooossssiiiittttiiiioooonnnn _i_n_d_e_x Returns a decimal string giving the y-coordinate within the menu window of the topmost pixel in the entry specified by _i_n_d_e_x. PPPPaaaaggggeeee 9999 mmmmeeeennnnuuuu((((3333TTTTkkkk)))) mmmmeeeennnnuuuu((((3333TTTTkkkk)))) MMMMEEEENNNNUUUU CCCCOOOONNNNFFFFIIIIGGGGUUUURRRRAAAATTTTIIIIOOOONNNNSSSS The default bindings support four different ways of using menus: | PPPPuuuullllllllddddoooowwwwnnnn MMMMeeeennnnuuuussss This is the most common case. You create one menubutton widget for | each top-level menu, and typically you arrange a series of | menubuttons in a row in a menubar window. You also create the top- | level menus and any cascaded submenus, and tie them together with | ----mmmmeeeennnnuuuu options in menubuttons and cascade menu entries. The top- | level menu must be a child of the menubutton, and each submenu must | be a child of the menu that refers to it. Once you have done this, | the default bindings will allow users to traverse and invoke the | tree of menus via its menubutton; see the mmmmeeeennnnuuuubbbbuuuuttttttttoooonnnn manual entry | for details. PPPPooooppppuuuupppp MMMMeeeennnnuuuussss Popup menus typically post in response to a mouse button press or | keystroke. You create the popup menus and any cascaded submenus, | then you call the ttttkkkk____ppppooooppppuuuupppp procedure at the appropriate time to post| the top-level menu. OOOOppppttttiiiioooonnnn MMMMeeeennnnuuuussss An option menu consists of a menubutton with an associated menu that| allows you to select one of several values. The current value is | displayed in the menubutton and is also stored in a global variable.| Use the ttttkkkk____ooooppppttttiiiioooonnnnMMMMeeeennnnuuuu procedure to create option menubuttons and | their menus. TTTToooorrrrnnnn----ooooffffffff MMMMeeeennnnuuuussss You create a torn-off menu by invoking the tear-off entry at the top| of an existing menu. The default bindings will create a new menu | that is a copy of the original menu and leave it permanently posted | as a top-level window. The torn-off menu behaves just the same as | the original menu. DDDDEEEEFFFFAAAAUUUULLLLTTTT BBBBIIIINNNNDDDDIIIINNNNGGGGSSSS Tk automatically creates class bindings for menus that give them the | following default behavior: [1] When the mouse enters a menu, the entry underneath the mouse cursor activates; as the mouse moves around the menu, the active entry changes to track the mouse. [2] When the mouse leaves a menu all of the entries in the menu deactivate, except in the special case where the mouse moves from a menu to a cascaded submenu. [3] When a button is released over a menu, the active entry (if any) is invoked. The menu also unposts unless it is a torn-off menu. PPPPaaaaggggeeee 11110000 mmmmeeeennnnuuuu((((3333TTTTkkkk)))) mmmmeeeennnnuuuu((((3333TTTTkkkk)))) [4] The Space and Return keys invoke the active entry and unpost the menu. [5] If any of the entries in a menu have letters underlined with with ----uuuunnnnddddeeeerrrrlllliiiinnnneeee option, then pressing one of the underlined letters (or its upper-case or lower-case equivalent) invokes that entry and unposts the menu. [6] The Escape key aborts a menu selection in progress without invoking any entry. It also unposts the menu unless it is a torn-off menu. [7] The Up and Down keys activate the next higher or lower entry in the menu. When one end of the menu is reached, the active entry wraps around to the other end. [8] The Left key moves to the next menu to the left. If the current menu is a cascaded submenu, then the submenu is unposted and the current menu entry becomes the cascade entry in the parent. If the current menu is a top-level menu posted from a menubutton, then the current menubutton is unposted and the next menubutton to the left is posted. Otherwise the key has no effect. The left-right order of menubuttons is determined by their stacking order: Tk assumes that the lowest menubutton (which by default is the first one created) is on the left. [9] The Right key moves to the next menu to the right. If the current entry is a cascade entry, then the submenu is posted and the current menu entry becomes the first entry in the submenu. Otherwise, if the current menu was posted from a menubutton, then the current menubutton is unposted and the next menubutton to the right is posted. Disabled menu entries are non-responsive: they don't activate and they ignore mouse button presses and releases. The behavior of menus can be changed by defining new bindings for individual widgets or by redefining the class bindings. BBBBUUUUGGGGSSSS At present it isn't possible to use the option database to specify values for the options to individual entries. KKKKEEEEYYYYWWWWOOOORRRRDDDDSSSS menu, widget PPPPaaaaggggeeee 11111111