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how to include iwidgets3.0
- To: gdb at sourceware dot cygnus dot com
- Subject: how to include iwidgets3.0
- From: hua yan <huayan_us at yahoo dot com>
- Date: Tue, 14 Mar 2000 18:42:43 -0800 (PST)
- Cc: insight at sourceware dot cygnus dot com
Dear Consultant:
I've written an tcl program using Iwidgets 3.0 's
class ---- iwidgets::Fileselectionbox. If run it in
Itcl environment that is if I have insalled the Itcl
(my O.S is Windows NT 4.0) ,there is no problem.But
if I write an C program to startup the Tcl file, some
problems will raised.
Problem 1:
In my C file there have include the following
sentences:
int Tcl_AppInit(Tcl_Interp *interp) {
if (Tcl_Init(interp) != TCL_OK) {
return TCL_ERROR;
}
if (Tk_Init(interp) != TCL_OK) {
return TCL_ERROR;
}
if (Itcl_Init(interp) != TCL_OK) {
return TCL_ERROR;
}
if (Itk_Init(interp) != TCL_OK) {
return TCL_ERROR;
}
return TCL_OK;
}
In my main.tcl file, there have include the following
sentences:
package require Tcl 8.0
package require Tk 8.0
package require Itcl 3.0
package require Itk 3.0
package require Iwidgets 3.0
if {![find_iwidgets_library]} {
tk_messageBox -title Error -message "Could not find
the Iwidgets libraries.
Got nameofexec: [info nameofexecutable]
Error(s) were: \n$errMsg" \
-icon error -type ok
exit
}
but the error messege "Error: error while autoloading
"iwidgets:Fileselectionbox": invalid command name
"class"" will appear.
Problem 2:
In my C file, if call the function
"freeconsole()",then
in my Tcl, all places including {open "|..."} being
executed, can not launch the program,error message
"Error: couldn't duplicate input handle:bad file
number" will appear. if not call the
"freeconsole",then behind my main interface there is
always an blank screen, but can launch the program.
problem 3:
if startup the program from C file, then my main menu
will display some curious characters if the original
character is chinese.
best wishes
huayan
2000-3-15
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