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'\" te '\" '\" Copyright (c) 1994 The Regents of the University of California. '\" Copyright (c) 1994-1996 Sun Microsystems, Inc. '\" '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" .TH Tk_CreateBindingTable 3tk 4.0 Tk "Tk Library Procedures" .\" The -*- nroff -*- definitions below are for supplemental macros used .\" in Tcl/Tk manual entries. .\" .\" .AP type name in/out ?indent? .\" Start paragraph describing an argument to a library procedure. .\" type is type of argument (int, etc.), in/out is either "in", "out", .\" or "in/out" to describe whether procedure reads or modifies arg, .\" and indent is equivalent to second arg of .IP (shouldn't ever be .\" needed; use .AS below instead) .\" .\" .AS ?type? ?name? .\" Give maximum sizes of arguments for setting tab stops. Type and .\" name are examples of largest possible arguments that will be passed .\" to .AP later. If args are omitted, default tab stops are used. .\" .\" .BS .\" Start box enclosure. From here until next .BE, everything will be .\" enclosed in one large box. .\" .\" .BE .\" End of box enclosure. .\" .\" .CS .\" Begin code excerpt. .\" .\" .CE .\" End code excerpt. .\" .\" .VS ?version? ?br? .\" Begin vertical sidebar, for use in marking newly-changed parts .\" of man pages. The first argument is ignored and used for recording .\" the version when the .VS was added, so that the sidebars can be .\" found and removed when they reach a certain age. If another argument .\" is present, then a line break is forced before starting the sidebar. .\" .\" .VE .\" End of vertical sidebar. .\" .\" .DS .\" Begin an indented unfilled display. .\" .\" .DE .\" End of indented unfilled display. .\" .\" .SO ?manpage? .\" Start of list of standard options for a Tk widget. The manpage .\" argument defines where to look up the standard options; if .\" omitted, defaults to "options". The options follow on successive .\" lines, in three columns separated by tabs. .\" .\" .SE .\" End of list of standard options for a Tk widget. .\" .\" .OP cmdName dbName dbClass .\" Start of description of a specific option. cmdName gives the .\" option's name as specified in the class command, dbName gives .\" the option's name in the option database, and dbClass gives .\" the option's class in the option database. .\" .\" .UL arg1 arg2 .\" Print arg1 underlined, then print arg2 normally. .\" .\" .QW arg1 ?arg2? .\" Print arg1 in quotes, then arg2 normally (for trailing punctuation). .\" .\" .PQ arg1 ?arg2? .\" Print an open parenthesis, arg1 in quotes, then arg2 normally .\" (for trailing punctuation) and then a closing parenthesis. .\" .\" # Set up traps and other miscellaneous stuff for Tcl/Tk man pages. .if t .wh -1.3i ^B .nr ^l \n(.l .ad b .\" # Start an argument description .de AP .ie !"\\$4"" .TP \\$4 .el \{\ . ie !"\\$2"" .TP \\n()Cu . el .TP 15 .\} .ta \\n()Au \\n()Bu .ie !"\\$3"" \{\ \&\\$1 \\fI\\$2\\fP (\\$3) .\".b .\} .el \{\ .br .ie !"\\$2"" \{\ \&\\$1 \\fI\\$2\\fP .\} .el \{\ \&\\fI\\$1\\fP .\} .\} .. .\" # define tabbing values for .AP .de AS .nr )A 10n .if !"\\$1"" .nr )A \\w'\\$1'u+3n .nr )B \\n()Au+15n .\" .if !"\\$2"" .nr )B \\w'\\$2'u+\\n()Au+3n .nr )C \\n()Bu+\\w'(in/out)'u+2n .. .AS Tcl_Interp Tcl_CreateInterp in/out .\" # BS - start boxed text .\" # ^y = starting y location .\" # ^b = 1 .de BS .br .mk ^y .nr ^b 1u .if n .nf .if n .ti 0 .if n \l'\\n(.lu\(ul' .if n .fi .. .\" # BE - end boxed text (draw box now) .de BE .nf .ti 0 .mk ^t .ie n \l'\\n(^lu\(ul' .el \{\ .\" Draw four-sided box normally, but don't draw top of .\" box if the box started on an earlier page. .ie !\\n(^b-1 \{\ \h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul' .\} .el \}\ \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul' .\} .\} .fi .br .nr ^b 0 .. .\" # VS - start vertical sidebar .\" # ^Y = starting y location .\" # ^v = 1 (for troff; for nroff this doesn't matter) .de VS .if !"\\$2"" .br .mk ^Y .ie n 'mc \s12\(br\s0 .el .nr ^v 1u .. .\" # VE - end of vertical sidebar .de VE .ie n 'mc .el \{\ .ev 2 .nf .ti 0 .mk ^t \h'|\\n(^lu+3n'\L'|\\n(^Yu-1v\(bv'\v'\\n(^tu+1v-\\n(^Yu'\h'-|\\n(^lu+3n' .sp -1 .fi .ev .\} .nr ^v 0 .. .\" # Special macro to handle page bottom: finish off current .\" # box/sidebar if in box/sidebar mode, then invoked standard .\" # page bottom macro. .de ^B .ev 2 'ti 0 'nf .mk ^t .if \\n(^b \{\ .\" Draw three-sided box if this is the box's first page, .\" draw two sides but no top otherwise. .ie !\\n(^b-1 \h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c .el \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c .\} .if \\n(^v \{\ .nr ^x \\n(^tu+1v-\\n(^Yu \kx\h'-\\nxu'\h'|\\n(^lu+3n'\ky\L'-\\n(^xu'\v'\\n(^xu'\h'|0u'\c .\} .bp 'fi .ev .if \\n(^b \{\ .mk ^y .nr ^b 2 .\} .if \\n(^v \{\ .mk ^Y .\} .. .\" # DS - begin display .de DS .RS .nf .sp .. .\" # DE - end display .de DE .fi .RE .sp .. .\" # SO - start of list of standard options .de SO 'ie '\\$1'' .ds So \\fBoptions\\fR 'el .ds So \\fB\\$1\\fR .SH "STANDARD OPTIONS" .LP .nf .ta 5.5c 11c .ft B .. .\" # SE - end of list of standard options .de SE .fi .ft R .LP See the \\*(So manual entry for details on the standard options. .. .\" # OP - start of full description for a single option .de OP .LP .nf .ta 4c Command-Line Name: \\fB\\$1\\fR Database Name: \\fB\\$2\\fR Database Class: \\fB\\$3\\fR .fi .IP .. .\" # CS - begin code excerpt .de CS .RS .nf .ta .25i .5i .75i 1i .. .\" # CE - end code excerpt .de CE .fi .RE .. .\" # UL - underline word .de UL \\$1\l'|0\(ul'\\$2 .. .\" # QW - apply quotation marks to word .de QW .ie '\\*(lq'"' ``\\$1''\\$2 .\"" fix emacs highlighting .el \\*(lq\\$1\\*(rq\\$2 .. .\" # PQ - apply parens and quotation marks to word .de PQ .ie '\\*(lq'"' (``\\$1''\\$2)\\$3 .\"" fix emacs highlighting .el (\\*(lq\\$1\\*(rq\\$2)\\$3 .. .\" # QR - quoted range .de QR .ie '\\*(lq'"' ``\\$1''\\-``\\$2''\\$3 .\"" fix emacs highlighting .el \\*(lq\\$1\\*(rq\\-\\*(lq\\$2\\*(rq\\$3 .. .\" # MT - "empty" string .de MT .QW "" .. .BS .SH NAME Tk_CreateBindingTable, Tk_DeleteBindingTable, Tk_CreateBinding, Tk_DeleteBinding, Tk_GetBinding, Tk_GetAllBindings, Tk_DeleteAllBindings, Tk_BindEvent \- invoke scripts in response to X events .SH SYNOPSIS .nf \fB#include <tk.h>\fR .sp Tk_BindingTable \fBTk_CreateBindingTable(\fIinterp\fB)\fR .sp \fBTk_DeleteBindingTable(\fIbindingTable\fB)\fR .sp unsigned long \fBTk_CreateBinding(\fIinterp, bindingTable, object, eventString, script, append\fB)\fR .sp int \fBTk_DeleteBinding(\fIinterp, bindingTable, object, eventString\fB)\fR .sp const char * \fBTk_GetBinding(\fIinterp, bindingTable, object, eventString\fB)\fR .sp \fBTk_GetAllBindings(\fIinterp, bindingTable, object\fB)\fR .sp \fBTk_DeleteAllBindings(\fIbindingTable, object\fB)\fR .sp \fBTk_BindEvent(\fIbindingTable, eventPtr, tkwin, numObjects, objectPtr\fB)\fR .SH ARGUMENTS .AS Tk_BindingTable bindingTable .AP Tcl_Interp *interp in Interpreter to use when invoking bindings in binding table. Also used for returning results and errors from binding procedures. .AP Tk_BindingTable bindingTable in Token for binding table; must have been returned by some previous call to \fBTk_CreateBindingTable\fR. .AP ClientData object in Identifies object with which binding is associated. .AP "const char" *eventString in String describing event sequence. .AP "const char" *script in Tcl script to invoke when binding triggers. .AP int append in Non-zero means append \fIscript\fR to existing script for binding, if any; zero means replace existing script with new one. .AP XEvent *eventPtr in X event to match against bindings in \fIbindingTable\fR. .AP Tk_Window tkwin in Identifier for any window on the display where the event occurred. Used to find display-related information such as key maps. .AP int numObjects in Number of object identifiers pointed to by \fIobjectPtr\fR. .AP ClientData *objectPtr in Points to an array of object identifiers: bindings will be considered for each of these objects in order from first to last. .BE .SH DESCRIPTION .PP These procedures provide a general-purpose mechanism for creating and invoking bindings. Bindings are organized in terms of \fIbinding tables\fR. A binding table consists of a collection of bindings plus a history of recent events. Within a binding table, bindings are associated with \fIobjects\fR. The meaning of an object is defined by clients of the binding package. For example, Tk keeps uses one binding table to hold all of the bindings created by the \fBbind\fR command. For this table, objects are pointers to strings such as window names, class names, or other binding tags such as \fBall\fR. Tk also keeps a separate binding table for each canvas widget, which manages bindings created by the canvas's \fBbind\fR widget command; within this table, an object is either a pointer to the internal structure for a canvas item or a Tk_Uid identifying a tag. .PP The procedure \fBTk_CreateBindingTable\fR creates a new binding table and associates \fIinterp\fR with it (when bindings in the table are invoked, the scripts will be evaluated in \fIinterp\fR). \fBTk_CreateBindingTable\fR returns a token for the table, which must be used in calls to other procedures such as \fBTk_CreateBinding\fR or \fBTk_BindEvent\fR. .PP \fBTk_DeleteBindingTable\fR frees all of the state associated with a binding table. Once it returns the caller should not use the \fIbindingTable\fR token again. .PP \fBTk_CreateBinding\fR adds a new binding to an existing table. The \fIobject\fR argument identifies the object with which the binding is to be associated, and it may be any one-word value. Typically it is a pointer to a string or data structure. The \fIeventString\fR argument identifies the event or sequence of events for the binding; see the documentation for the \fBbind\fR command for a description of its format. \fIscript\fR is the Tcl script to be evaluated when the binding triggers. \fIappend\fR indicates what to do if there already exists a binding for \fIobject\fR and \fIeventString\fR: if \fIappend\fR is zero then \fIscript\fR replaces the old script; if \fIappend\fR is non-zero then the new script is appended to the old one. \fBTk_CreateBinding\fR returns an X event mask for all the events associated with the bindings. This information may be useful to invoke \fBXSelectInput\fR to select relevant events, or to disallow the use of certain events in bindings. If an error occurred while creating the binding (e.g., \fIeventString\fR refers to a non-existent event), then 0 is returned and an error message is left as the result of interpreter \fIinterp\fR. .PP \fBTk_DeleteBinding\fR removes from \fIbindingTable\fR the binding given by \fIobject\fR and \fIeventString\fR, if such a binding exists. \fBTk_DeleteBinding\fR always returns \fBTCL_OK\fR. In some cases it may reset the interpreter result to the default empty value. .PP \fBTk_GetBinding\fR returns a pointer to the script associated with \fIeventString\fR and \fIobject\fR in \fIbindingTable\fR. If no such binding exists then NULL is returned and an error message is left as the result of interpreter \fIinterp\fR. .PP \fBTk_GetAllBindings\fR returns in \fIinterp\fR's result a list of all the event strings for which there are bindings in \fIbindingTable\fR associated with \fIobject\fR. If there are no bindings for \fIobject\fR, the result will be an empty string. .PP \fBTk_DeleteAllBindings\fR deletes all of the bindings in \fIbindingTable\fR that are associated with \fIobject\fR. .PP \fBTk_BindEvent\fR is called to process an event. It makes a copy of the event in an internal history list associated with the binding table, then it checks for bindings that match the event. \fBTk_BindEvent\fR processes each of the objects pointed to by \fIobjectPtr\fR in turn. For each object, it finds all the bindings that match the current event history, selects the most specific binding using the priority mechanism described in the documentation for \fBbind\fR, and invokes the script for that binding. If there are no matching bindings for a particular object, then the object is skipped. \fBTk_BindEvent\fR continues through all of the objects, handling exceptions such as errors, \fBbreak\fR, and \fBcontinue\fR as described in the documentation for \fBbind\fR. .SH KEYWORDS binding, event, object, script .\" Oracle has added the ARC stability level to this manual page .SH ATTRIBUTES See .BR attributes (7) for descriptions of the following attributes: .sp .TS box; cbp-1 | cbp-1 l | l . ATTRIBUTE TYPE ATTRIBUTE VALUE = Availability runtime/tk-8 = Stability Uncommitted .TE .PP .SH NOTES .\" Oracle has added source availability information to this manual page Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source-code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://sourceforge.net/projects/tcl/files/Tcl/8.6.12/tk8.6.12-src.tar.gz/download. Further information about this software can be found on the open source community website at https://www.tcl.tk/.