toplevel(3tk) Tk Built-In Commands toplevel(3tk)
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NAME
toplevel - Create and manipulate 'toplevel' main and popup window wid-
gets
SYNOPSIS
toplevel pathName ?options?
STANDARD OPTIONS
-borderwidth -highlightcolor -pady
-cursor -highlightthickness -relief
-highlightbackground -padx -takefocus
See the options manual entry for details on the standard options.
WIDGET-SPECIFIC OPTIONS
Command-Line Name:-background
Database Name: background
Database Class: Background
This option is the same as the standard -background option ex-
cept that its value may also be specified as an empty string.
In this case, the widget will display no background or border,
and no colors will be consumed from its colormap for its back-
ground and border.
Command-Line Name:-class
Database Name: class
Database Class: Class
Specifies a class for the window. This class will be used when
querying the option database for the window's other options, and
it will also be used later for other purposes such as bindings.
Some window managers display the class name for windows in their
dock while some others display the window title. The -class op-
tion may not be changed with the configure widget command.
Command-Line Name:-colormap
Database Name: colormap
Database Class: Colormap
Specifies a colormap to use for the window. The value may be
either new, in which case a new colormap is created for the win-
dow and its children, or the name of another window (which must
be on the same screen and have the same visual as pathName), in
which case the new window will use the colormap from the speci-
fied window. If the -colormap option is not specified, the new
window uses the default colormap of its screen. This option may
not be changed with the configure widget command.
Command-Line Name:-container
Database Name: container
Database Class: Container
The value must be a boolean. If true, it means that this window
will be used as a container in which some other application will
be embedded (for example, a Tk toplevel can be embedded using
the -use option). The window will support the appropriate win-
dow manager protocols for things like geometry requests. The
window should not have any children of its own in this applica-
tion. This option may not be changed with the configure widget
command.
Command-Line Name:-height
Database Name: height
Database Class: Height
Specifies the desired height for the window in any of the forms
acceptable to Tk_GetPixels. If this option is less than or
equal to zero then the window will not request any size at all.
Command-Line Name:-menu
Database Name: menu
Database Class: Menu
Specifies a menu widget to be used as a menubar. On the Macin-
tosh, the menubar will be displayed across the top of the main
monitor. On Microsoft Windows and all UNIX platforms, the menu
will appear across the toplevel window as part of the window
dressing maintained by the window manager.
Command-Line Name:-screen
Database Name:
Database Class:
Specifies the screen on which to place the new window. Any
valid screen name may be used, even one associated with a dif-
ferent display. Defaults to the same screen as its parent.
This option is special in that it may not be specified via the
option database, and it may not be modified with the configure
widget command.
Command-Line Name:-use
Database Name: use
Database Class: Use
This option is used for embedding. If the value is not an empty
string, it must be the window identifier of a container window,
specified as a hexadecimal string like the ones returned by the
winfo id command. The toplevel widget will be created as a child
of the given container instead of the root window for the
screen. If the container window is in a Tk application, it must
be a frame or toplevel widget for which the -container option
was specified. This option may not be changed with the config-
ure widget command.
Command-Line Name:-visual
Database Name: visual
Database Class: Visual
Specifies visual information for the new window in any of the
forms accepted by Tk_GetVisual. If this option is not speci-
fied, the new window will use the default visual for its screen.
The -visual option may not be modified with the configure widget
command.
Command-Line Name:-width
Database Name: width
Database Class: Width
Specifies the desired width for the window in any of the forms
acceptable to Tk_GetPixels. If this option is less than or
equal to zero then the window will not request any size at all.
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DESCRIPTION
The toplevel command creates a new toplevel widget (given by the path-
Name argument). Additional options, described above, may be specified
on the command line or in the option database to configure aspects of
the toplevel such as its background color and relief. The toplevel
command returns the path name of the new window.
A toplevel is similar to a frame except that it is created as a top-
level window: its X parent is the root window of a screen rather than
the logical parent from its Tk path name. The primary purpose of a
toplevel is to serve as a container for dialog boxes and other collec-
tions of widgets. The only visible features of a toplevel are its
background color and an optional 3-D border to make the toplevel appear
raised or sunken.
WIDGET COMMAND
The toplevel command creates a new Tcl command whose name is the same
as the path name of the toplevel's window. This command may be used to
invoke various operations on the widget. It has the following general
form:
pathName option ?arg arg ...?
PathName is the name of the command, which is the same as the toplevel
widget's path name. Option and the args determine the exact behavior
of the command. The following commands are possible for toplevel wid-
gets:
pathName cget option
Returns the current value of the configuration option given by
option. Option may have any of the values accepted by the
toplevel command.
pathName configure ?option? ?value option value ...?
Query or modify the configuration options of the widget. If no
option is specified, returns a list describing all of the avail-
able options for pathName (see Tk_ConfigureInfo for information
on the format of this list). If option is specified with no
value, 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 option is specified). If one or
more option-value 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. Option may have any
of the values accepted by the toplevel command.
BINDINGS
When a new toplevel is created, it has no default event bindings:
toplevels are not intended to be interactive.
Be aware that bindings on toplevels may receive events from subwidgets.
SEE ALSO
bind(3tk), bindtags(3tk), frame(3tk), wm(3tk)
KEYWORDS
toplevel, widget
Tk 8.4 toplevel(3tk)
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