diff options
Diffstat (limited to 'doc/CrtObjCmd.3')
| -rw-r--r-- | doc/CrtObjCmd.3 | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/doc/CrtObjCmd.3 b/doc/CrtObjCmd.3 index 78fe6f8..0fe9611 100644 --- a/doc/CrtObjCmd.3 +++ b/doc/CrtObjCmd.3 @@ -4,7 +4,7 @@ '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" -'\" SCCS: @(#) @(#) CrtObjCmd.3 1.10 97/07/31 14:10:38 +'\" SCCS: @(#) @(#) CrtObjCmd.3 1.11 97/11/10 11:19:57 '\" .so man.macros .TH Tcl_CreateObjCommand 3 8.0 Tcl "Tcl Library Procedures" @@ -62,8 +62,10 @@ such that whenever \fIname\fR is invoked as a Tcl command (e.g., via a call to \fBTcl_EvalObj\fR) the Tcl interpreter will call \fIproc\fR to process the command. .PP -\fBTcl_CreateObjCommand\fR will delete any command \fIname\fR -already associated with the interpreter. +\fBTcl_CreateObjCommand\fR deletes any existing command +\fIname\fR already associated with the interpreter +(however see below for an exception where the existing command +is not deleted). It returns a token that may be used to refer to the command in subsequent calls to \fBTcl_GetCommandName\fR. If \fIname\fR contains any \fB::\fR namespace qualifiers, @@ -128,6 +130,17 @@ not modify them. Call \fBTcl_SetObjResult\fR if you want to return something from the \fIobjv\fR array. .PP +Ordinarily, \fBTcl_CreateObjCommand\fR deletes any existing command +\fIname\fR already associated with the interpreter. +However, if the existing command was created by a previous call to +\fBTcl_CreateCommand\fR, +\fBTcl_CreateObjCommand\fR does not delete the command +but instead arranges for the Tcl interpreter to call the +\fBTcl_ObjCmdProc\fR \fIproc\fR in the future. +The old string-based \fBTcl_CmdProc\fR associated with the command +is retained and its address can be obtained by subsequent +\fBTcl_GetCommandInfo\fR calls. This is done for backwards compatibility. +.PP \fIDeleteProc\fR will be invoked when (if) \fIname\fR is deleted. This can occur through a call to \fBTcl_DeleteCommand\fR, \fBTcl_DeleteCommandFromToken\fR, or \fBTcl_DeleteInterp\fR, |