contrasting background.  Each numbered color constrasts with its
predecessor.
.RS
.DS
systemControlAccentColor
systemControlTextColor
systemDisabledControlTextColor
systemLabelColor
systemSelectedTextBackgroundColor
systemSelectedTextColor
systemTextBackgroundColor
systemTextColor
systemWindowBackgroundColor
systemWindowBackgroundColor1
systemWindowBackgroundColor2
systemWindowBackgroundColor3
systemWindowBackgroundColor4
systemWindowBackgroundColor5
systemWindowBackgroundColor6

contents are inserted into the standard Window menu of the user's
menubar whenever the window's menubar is in front. The first items in
the menu are provided by Mac OS X, and the names of the current
toplevels are automatically appended after all the Tk-defined items and
a separator. The Window menu on the Mac also allows toggling the
window into a fullscreen state, and managing a tabbed window interface
(multiple windows grouped into a single window) if supported by that
version of the operating system.
.PP
When Tk sees a .menubar.help menu on the Macintosh, the menu's contents
are appended to the standard Help menu of the user's menubar whenever
the window's menubar is in front. The first items in the menu
are provided by Mac OS X.
.PP
When Tk sees a System menu on Windows, its items are appended to the

'\".TP
'\"\fIpathName \fBconfigure\fR ?\fIoption\fR? ?\fIvalue option value ...\fR?
'\"Modify or query widget options.
'\"See \fIttk::widget(n)\fR.
.TP
\fIpathName \fBcurrent\fR ?\fInewIndex\fR?
If \fInewIndex\fR is supplied, sets the combobox value
to the element at position \fInewIndex\fR in the list of \fB\-values\fR
(in addition to integers, the \fBend\fR index is supported and indicates
the last element of the list).
Otherwise, returns the index of the current value in the list of
\fB\-values\fR or \fB\-1\fR if the current value does not appear in the list.
.TP
\fIpathName \fBget\fR
Returns the current value of the combobox.
'\".TP
'\"\fIpathName \fBidentify \fIx y\fR

.RS
.TP
\fB\-id \fIname\fR
The column name.  This is a read-only option.
For example, [\fI$pathname \fBcolumn #\fIn \fB\-id\fR]
returns the data column associated with display column #\fIn\fR.
.TP
\fB\-anchor \fIanchor\fR
Specifies how the text in this column should be aligned
with respect to the cell. \fIAnchor\fR is one of
\fBn\fR, \fBne\fR, \fBe\fR, \fBse\fR,
\fBs\fR, \fBsw\fR, \fBw\fR, \fBnw\fR, or \fBcenter\fR.
.TP
\fB\-minwidth \fIminwidth\fR
The minimum width of the column in pixels.
The treeview widget will not make the column any smaller than
\fB\-minwidth\fR when the widget is resized or the user drags a
column separator.  Default is 20 pixels.
.TP
\fB\-stretch \fIboolean\fR
Specifies whether or not the column width should be adjusted
when the widget is resized or the user drags a column separator.
\fIBoolean\fR may have any of the forms accepted by \fBTcl_GetBoolean\fR.
By default columns are stretchable.
.TP
\fB\-width \fIwidth\fR
The width of the column in pixels.  Default is 200 pixels. The specified
column width may be changed by Tk in order to honor \fB\-stretch\fR
and/or \fB\-minwidth\fR, or when the widget is resized or the user drags a
column separator.
.PP
Use \fIpathname column #0\fR to configure the tree column.
.RE
.TP
\fIpathname \fBconfigure\fR ?\fIoption\fR? ?\fIvalue option value ...\fR?
Modify or query widget options; see \fIttk::widget(n)\fR.
.TP

.PP
On Macintosh, the first image called is loaded into an OSX-native icon
format, and becomes the application icon in dialogs, the Dock, and
other contexts. At the
script level the command will accept only the first image passed in the
parameters as support for multiple sizes/resolutions on macOS is outside Tk's
scope. Developers should use the largest icon they can support
(preferably 512 pixels) to ensure smooth rendering on the Mac.
.RE
.TP
\fBwm iconposition \fIwindow\fR ?\fIx y\fR?
.
If \fIx\fR and \fIy\fR are specified, they are passed to the window
manager as a hint about where to position the icon for \fIwindow\fR.
In this case an empty string is returned.  If \fIx\fR and \fIy\fR are

    { "-background", TK_OPTION_BORDER,
	Tk_Offset(SashElement,borderObj), DEFAULT_BACKGROUND },
    { "-sashrelief", TK_OPTION_RELIEF,
	Tk_Offset(SashElement,sashReliefObj), "sunken" },
#ifdef ANDROID
    { "-sashthickness", TK_OPTION_PIXELS,
	Tk_Offset(SashElement,sashThicknessObj), "10" },
    { "-sashpad", TK_OPTION_PIXELS,
	Tk_Offset(SashElement,sashPadObj), "4" },
    { "-handlesize", TK_OPTION_PIXELS,
	Tk_Offset(SashElement,handleSizeObj), "12" },
    { "-handlepad", TK_OPTION_PIXELS,
	Tk_Offset(SashElement,handlePadObj), "12" },
#else
    { "-sashthickness", TK_OPTION_PIXELS,

    Tk_FreeGC(display, copyGC);

    /*
     * Protect against the possibility that some future platform might
     * not use the Tk memory manager in its implementation of XDestroyImage,
     * even though that would be an extremely strange thing to do.
     */

#if defined(IGNORES_VISUAL)
    ckfree(img->data);
    img->data = NULL;
#endif

    XDestroyImage(img);
}

static Ttk_ElementSpec IndicatorElementSpec = {
    TK_STYLE_VERSION_2,
    sizeof(IndicatorElement),
    IndicatorElementOptions,

    EntryConfigure,		/* configureProc */
    EntryPostConfigure,  	/* postConfigureProc */
    TtkWidgetGetLayout, 	/* getLayoutProc */
    TtkWidgetSize, 		/* sizeProc */
    EntryDoLayout,		/* layoutProc */
    EntryDisplay		/* displayProc */
};

/*------------------------------------------------------------------------
 * Named indices for the combobox "current" command
 */
static const char *const comboboxCurrentIndexNames[] = {
    "end", NULL
};
enum comboboxCurrentIndices {
    INDEX_END
};

/*------------------------------------------------------------------------
 * +++ Combobox widget record.
 */

typedef struct {
    Tcl_Obj	*postCommandObj;

		currentIndex = -1;
	    }
	}
	cbPtr->combobox.currentIndex = currentIndex;
	Tcl_SetObjResult(interp, Tcl_NewIntObj(currentIndex));
	return TCL_OK;
    } else if (objc == 3) {
        int result, index;

        result = Tcl_GetIndexFromObj(NULL, objv[2], comboboxCurrentIndexNames,
                "", 0, &index);
        if (result == TCL_OK) {

            /*
             * The index is one of the named indices.
             */

	    switch (index) {
	    case INDEX_END:
	        /* "end" index */
                currentIndex = nValues - 1;
                break;
	    }
        } else {

            /*
             * The index should be just an integer.
             */

	    if (Tcl_GetIntFromObj(NULL, objv[2], &currentIndex) != TCL_OK) {
	        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		        "Incorrect index %s", Tcl_GetString(objv[2])));
	        Tcl_SetErrorCode(interp, "TTK", "COMBOBOX", "IDX_VALUE", NULL);
	        return TCL_ERROR;
	    }

	    if (currentIndex < 0 || currentIndex >= nValues) {
	        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		        "Index %s out of range", Tcl_GetString(objv[2])));
	        Tcl_SetErrorCode(interp, "TTK", "COMBOBOX", "IDX_RANGE", NULL);
	        return TCL_ERROR;
	    }
        }

	cbPtr->combobox.currentIndex = currentIndex;

	return EntrySetValue(recordPtr, Tcl_GetString(values[currentIndex]));
    } else {
	Tcl_WrongNumArgs(interp, 2, objv, "?newIndex?");
	return TCL_ERROR;

	DEF_COLWIDTH, -1, Tk_Offset(TreeColumn,width),
	0,0,GEOMETRY_CHANGED },
    {TK_OPTION_INT, "-minwidth", "minWidth", "MinWidth",
	DEF_MINWIDTH, -1, Tk_Offset(TreeColumn,minWidth),
	0,0,0 },
    {TK_OPTION_BOOLEAN, "-stretch", "stretch", "Stretch",
	"1", -1, Tk_Offset(TreeColumn,stretch),
	0,0,GEOMETRY_CHANGED },
    {TK_OPTION_ANCHOR, "-anchor", "anchor", "Anchor",
	"w", Tk_Offset(TreeColumn,anchorObj), -1,	/* <<NOTE-ANCHOR>> */
	0,0,0 },
    {TK_OPTION_STRING, "-id", "id", "ID",
	NULL, Tk_Offset(TreeColumn,idObj), -1,
	TK_OPTION_NULL_OK,0,READONLY_OPTION },
    {TK_OPTION_END, 0,0,0, NULL, -1,-1, 0,0,0}

     * geometry jumping during interactive column resize.
     */
    if (mask & GEOMETRY_CHANGED) {
	if (!Tk_IsMapped(tv->core.tkwin)) {
	    TtkResizeWidget(&tv->core);
	}
	RecomputeSlack(tv);
        ResizeColumns(tv, TreeWidth(tv));
    }
    TtkRedisplayWidget(&tv->core);



    Tk_FreeSavedOptions(&savedOptions);
    return TCL_OK;

error:
    Tk_RestoreSavedOptions(&savedOptions);
    return TCL_ERROR;
}

 * 	Invokes scroll callbacks.
 */
static void TreeviewDoLayout(void *clientData)
{
    Treeview *tv = clientData;
    int visibleRows;



    Ttk_PlaceLayout(tv->core.layout,tv->core.state,Ttk_WinBox(tv->core.tkwin));
    tv->tree.treeArea = Ttk_ClientRegion(tv->core.layout, "treearea");

    ResizeColumns(tv, tv->tree.treeArea.width);


    TtkScrolled(tv->tree.xscrollHandle,
	    tv->tree.xscroll.first,
	    tv->tree.xscroll.first + tv->tree.treeArea.width,
	    TreeWidth(tv));

    if (tv->tree.showFlags & SHOW_HEADINGS) {

 */

static int TreeviewDeleteCommand(
    void *recordPtr, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[])
{
    Treeview *tv = recordPtr;
    TreeItem **items, *delq;
    int i, selItemDeleted = 0;

    if (objc != 3) {
	Tcl_WrongNumArgs(interp, 2, objv, "items");
	return TCL_ERROR;
    }

    if (!(items = GetItemListFromObj(interp, tv, objv[2]))) {

	}
    }

    /* Remove items from hash table.
     */
    delq = 0;
    for (i=0; items[i]; ++i) {
        if (items[i]->state & TTK_STATE_SELECTED) {
            selItemDeleted = 1;
        }
	delq = DeleteItems(items[i], delq);
    }

    /* Free items:
     */
    while (delq) {
	TreeItem *next = delq->next;
	if (tv->tree.focus == delq)
	    tv->tree.focus = 0;
	if (tv->tree.endPtr == delq)
	    tv->tree.endPtr = 0;
	FreeItem(delq);
	delq = next;
    }

    ckfree(items);
    if (selItemDeleted) {
        TtkSendVirtualEvent(tv->core.tkwin, "TreeviewSelect");
    }
    TtkRedisplayWidget(&tv->core);
    return TCL_OK;
}

/* + $tv move $item $parent $index
 * 	Move $item to the specified $index in $parent's child list.
 */

	return TCL_ERROR;
    }

    for (;i < tv->tree.nDisplayColumns; ++i) {
	TreeColumn *c = tv->tree.displayColumns[i];
	int right = left + c->width;
	if (c == column) {
            /* The limit not to exceed at the right is given by the tree width
               minus the sum of the min widths of the columns at the right of
               the one being resized (and don't forget possible x scrolling!).
               For stretchable columns, this min width really is the minWidth,
               for non-stretchable columns, this is the column width.
             */
            int newxRightLimit = tv->tree.treeArea.x - tv->tree.xscroll.first
                                 + tv->tree.treeArea.width;
            int j = i + 1;
            while (j < tv->tree.nDisplayColumns) {
                TreeColumn *cr = tv->tree.displayColumns[j];
                if (cr->stretch) {
                    newxRightLimit -= cr->minWidth;
                } else {
                    newxRightLimit -= cr->width;
                }
                ++j;
            }
            if (newx <= newxRightLimit) {
	        DragColumn(tv, i, newx - right);

	        TtkRedisplayWidget(&tv->core);
            }
	    return TCL_OK;
	}
	left = right;
    }

    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
	"column %s is not displayed", Tcl_GetString(objv[2])));
    Tcl_SetErrorCode(interp, "TTK", "TREE", "COLUMN_INVISIBLE", NULL);
    return TCL_ERROR;
}

static int TreeviewDropCommand(
    void *recordPtr, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[])
{
    Treeview *tv = recordPtr;

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "drop");
	return TCL_ERROR;
    }
    ResizeColumns(tv, TreeWidth(tv));
    TtkRedisplayWidget(&tv->core);
    return TCL_OK;
}

/*------------------------------------------------------------------------
 * +++ Widget commands -- focus and selection
 */

/* + $tree focus ?item?
 */

    { "children",	TreeviewChildrenCommand,0 },
    { "cget",		TtkWidgetCgetCommand,0 },
    { "column", 	TreeviewColumnCommand,0 },
    { "configure",	TtkWidgetConfigureCommand,0 },
    { "delete", 	TreeviewDeleteCommand,0 },
    { "detach", 	TreeviewDetachCommand,0 },
    { "drag",   	TreeviewDragCommand,0 },
    { "drop",   	TreeviewDropCommand,0 },
    { "exists", 	TreeviewExistsCommand,0 },
    { "focus", 		TreeviewFocusCommand,0 },
    { "heading", 	TreeviewHeadingCommand,0 },
    { "identify",  	TreeviewIdentifyCommand,0 },
    { "index",  	TreeviewIndexCommand,0 },
    { "instate",	TtkWidgetInstateCommand,0 },
    { "insert", 	TreeviewInsertCommand,0 },

This license text applies to fonts/Symbola.ttf:

In lieu of a licence:
Fonts in this site are offered free for any use; they may be opened,
edited, modified, regenerated, posted, packaged and redistributed.
fonts designed by George Douros

}

proc ::tk::fontchooser::Create {} {
    variable S
    set windowName __tk__fontchooser
    if {![winfo exists $S(-parent)]} {
        set S(-parent) .
    }
    if {$S(-parent) eq "."} {
        set S(W) .$windowName
    } else {
        set S(W) $S(-parent).$windowName
    }

    # Now build the dialog

proc ttk::treeview::resize.drag {w x} {
    variable State
    $w drag $State(resizeColumn) $x
}

proc ttk::treeview::resize.release {w x} {
    $w drop
}

### Heading activation.
#

proc ttk::treeview::heading.press {w x y} {
    variable State

    if {[string match lucida*bright $x]} {
		psfontname "{lucida bright} 10"
    } else {
		set x {LucidaBright}
    }
} -result {LucidaBright}
test font-21.6 {Tk_PostscriptFontName procedure: spaces} -constraints {
	x11
} -body {
    psfontname "{new century schoolbook} 10"
} -result {NewCenturySchlbk-Roman}

test font-21.7 {Tk_PostscriptFontName procedure: exhaustive} -constraints {
    unix
} -body {

proc getTroughSize {w} {
    if {[testConstraint testmetrics]} {
        # Only Windows has [testmetrics]
	if [string match v* [$w cget -orient]] {
	    return [expr [winfo height $w] - 2*[testmetrics cyvscroll $w]]
	} else {
	    return [expr [winfo width $w] - 2*[testmetrics cxhscroll $w]]
	}
    } else {
        if {[tk windowingsystem] eq "x11"} {
            # Calculations here assume that the arrow area is a square.
	    if [string match v* [$w cget -orient]] {
	        return [expr [winfo height $w] \
		        - ([winfo width $w] \
			    - [$w cget -highlightthickness] \

} -result {MULTIPLE TARGETS TIMESTAMP TK_APPLICATION TK_WINDOW {text/x-tk-test;detail="foo bar"}}

##############################################################################
# note, we are not testing MULTIPLE style selections

# most control paths have been exercised above
test select-10.1 {ConvertSelection procedure, race with selection clear} -constraints {
    x11
} -setup {
    setup
} -body {
    proc Ready {fd} {
	variable x
	lappend x [gets $fd]
    }

    set result ""
    set pass 0
    lappend result [dobg {selection get}]
    cleanupbg
    lappend result $selInfo
} -result {{selection owner didn't respond} {STRING 0 4000 STRING 4000 4000 STRING 8000 4000 STRING 12000 4000 STRING 16000 4000 STRING 0 4000 STRING 4000 4000}}
test select-10.5 {ConvertSelection procedure, reentrancy issues} -constraints {
    x11
} -setup {
    setup
    setupbg
} -body {
    set selValue "Test value"
    set selInfo ""
    selection handle -type TEST .f1 { handler TEST }
    selection handle -type STRING .f1 { badHandler .f1 STRING }
    set result ""
    lappend result [dobg {selection get}]
    cleanupbg
    lappend result $selInfo
} -result {{PRIMARY selection doesn't exist or form "STRING" not defined} {.f1 STRING 0 4000}}
test select-10.6 {ConvertSelection procedure, reentrancy issues} -constraints {
    x11
} -setup {
    setup
    setupbg
} -body {
    proc weirdHandler {type offset count} {
	destroy .f1
	handler $type $offset $count

    set selInfo ""
    set result [list [selection get TARGETS] $selInfo]
    selection handle .f1 {} TARGETS
    lappend result [selection get TARGETS]
} -result {{Targets value} {TARGETS.f1 0 4000} {MULTIPLE TARGETS TIMESTAMP TK_APPLICATION TK_WINDOW}}

test select-13.1 {SelectionSize procedure, handler deleted} -constraints {
    x11
} -setup {
    setup
    setupbg
} -body {
    proc badHandler {path type offset count} {
	global selValue selInfo abortCount
	incr abortCount -1

    testsend prop comm Comm \
	    "c\n-n tktest\n-r $id 62\n-s break\n"
    update
    testsend prop [winfo id .f] Comm
} {
r
-s 62
-r
-c 3
}
test send-10.9 {SendEventProc procedure, empty return} {secureserver testsend} {
    testsend prop [winfo id .f] Comm {}
    testsend prop comm Comm \
	    "c\n-n tktest\n-r $id 62\n-s concat\n"
    update
    testsend prop [winfo id .f] Comm
} {
r
-s 62
-r
}
test send-10.10 {SendEventProc procedure, asynchronous calls} {secureserver testsend} {
    testsend prop [winfo id .f] Comm {}
    testsend prop comm Comm \
	    "c\n-n tktest\n-s foreach i {1 2 3} {error {test error} {Initial errorInfo} {test code}}\n"
    update
    testsend prop [winfo id .f] Comm

    toplevel .top
    pack [text .top.yt]
    update
    set content {}
    for {set i 1} {$i < 300} {incr i} {
        append content [string repeat "$i " 50] \n
    }
    # Sync the widget and process all <<WidgetViewSync>> events before binding.
    .top.yt sync
    update
    bind .top.yt <<WidgetViewSync>> {lappend res Sync:%d}
    set res {}
    # The next line triggers <<WidgetViewSync>> with %d==0 i.e. out of sync.
    .top.yt insert 1.0 $content
    vwait res

    destroy .top.t .top
} -body {
    set res {}
    toplevel .top
    pack [text .top.t]
    update
    for {set i 1} {$i < 10000} {incr i} {
        .top.t insert end "Hello world!\n"
    }
    bind .top.t <<WidgetViewSync>> {destroy .top.t}
    .top.t tag add mytag 1.5 8000.8    ; # shall not crash
    update
    set res "Still doing fine!"
} -cleanup {
    destroy .top.t .top

wm minsize . 1 1
wm positionfrom . user
wm deiconify .

# This update is needed on MacOS to make sure that the window is mapped
# when the tests begin.

update

set bw [.t cget -borderwidth]
set px [.t cget -padx]
set py [.t cget -pady]
set hlth [.t cget -highlightthickness]
set padx [expr {$bw+$px+$hlth}]
set pady [expr {$bw+$py+$hlth}]

} -result 1

test combobox-2.4 "current -- value not in list" -body {
    .cb set "z"
    .cb current
} -result -1

test combobox-2.5 "current -- set to end index" -body {
    .cb configure -values [list a b c d e thelastone]
    .cb current end
    .cb get
} -result thelastone

test combobox-2.6 "current -- set to unknown index" -body {
    .cb configure -values [list a b c d e]
    .cb current notanindex
} -returnCodes error -result {Incorrect index notanindex}

test combobox-2.end "Cleanup" -body { destroy .cb }

test combobox-3 "Read postoffset value dynamically from current style" -body {
    ttk::combobox .cb -values [list a b c] -style "DerivedStyle.TCombobox"
    pack .cb -expand true -fill both
    ttk::style configure DerivedStyle.TCombobox -postoffset [list 25 0 0 0]
    ttk::combobox::Post .cb

test scrollbar-swapout-1 "Don't use core scrollbars on OSX..." \
 -constraints {
     coreScrollbar
} -body {
    ttk::scrollbar .sb -command "yadda"
    list [winfo class .sb] [.sb cget -command]
} -result [list TScrollbar yadda] -cleanup {
    destroy .sb
}

test scrollbar-swapout-2 "... regardless of whether -style ..." \
-constraints {
    coreScrollbar
} -body {
    ttk::style layout Vertical.Custom.TScrollbar \

    .tv selection set {}
    .tv selection
} -result {}

test treeview-8.5 "Selection - bad operation" -body {
    .tv selection badop foo
} -returnCodes 1 -match glob -result {bad selection operation "badop": must be *}

test treeview-8.6 "Selection - <<TreeviewSelect>> on selection add" -body {
    .tv selection set {}
    bind .tv <<TreeviewSelect>> {set res 1}
    set res 0
    .tv selection add newnode.n1
    update
    set res
} -result {1}

test treeview-8.7 "<<TreeviewSelect>> on selected item deletion" -body {
    .tv selection set {}
    .tv insert "" end -id selectedDoomed -text DeadItem
    .tv insert "" end -id doomed -text AlsoDead
    .tv selection add selectedDoomed
    update
    bind .tv <<TreeviewSelect>> {lappend res 1}
    set res 0
    .tv delete doomed
    update
    set res [expr {$res == 0}]
    .tv delete selectedDoomed
    update
    set res
} -result {1 1}

### NEED: more tests for see/yview/scrolling

proc scrollcallback {args} {
    set ::scrolldata $args
}
test treeview-9.0 "scroll callback - empty tree" -body {

    .tv item $item -tags
} -cleanup {
    destroy .tv
} -result [list]

test treeview-368fa4561e "indicators cannot be clicked on leafs" -setup {
    pack [ttk::treeview .tv]
    .tv insert {} end -id foo -text "<-- (1) Click the blank space to my left"
    update
} -body {
    foreach {x y w h} [.tv bbox foo #0] {}
    set res [.tv item foo -open]
    # using $h even for x computation is intentional here in order to simulate
    # a mouse click on the (invisible since we're on a leaf) indicator
    event generate .tv <ButtonPress-1> \
            -x [expr ($x + $h / 2)] \
            -y [expr ($y + $h / 2)]
    lappend res [.tv item foo -open]
    .tv insert foo end -text "sub"
    lappend res [.tv item foo -open]
} -result {0 0 0}

test treeview-ce470f20fd-1 "dragging further than the right edge of the treeview is forbidden" -setup {
    pack [ttk::treeview .tv]
    .tv heading #0 -text "Drag my right edge -->"
    update
} -body {
    set res [.tv column #0 -width]
    .tv drag #0 400
    lappend res [expr {[.tv column #0 -width] > $res}]
} -cleanup {
    destroy .tv
} -result {200 0}

proc nostretch {tv} {
    foreach col [$tv cget -columns] {
        $tv column $col -stretch 0
    }
    $tv column #0 -stretch 0
    update idletasks ; # redisplay $tv
}

test treeview-ce470f20fd-2 "changing -stretch resizes columns" -setup {
    pack [ttk::treeview .tv -columns {bar colA colB colC foo}]
    foreach col [.tv cget -columns] {
        .tv heading $col -text $col
    }
    nostretch .tv
    .tv column colA -width 50 ; .tv column colB -width 50 ; # slack created
    update idletasks ; # redisplay treeview
} -body {
    # when no column is stretchable and one of them becomes stretchable
    # the stretchable column takes the slack and the widget is redisplayed
    # automatically at idle time
    set res [.tv column colA -width]
    .tv column colA -stretch 1
    update idletasks ; # no slack anymore, widget redisplayed
    lappend res [expr {[.tv column colA -width] > $res}]
} -cleanup {
    destroy .tv
} -result {50 1}

test treeview-ce470f20fd-3 "changing -stretch resizes columns" -setup {
    pack [ttk::treeview .tv -columns {bar colA colB colC foo}]
    foreach col [.tv cget -columns] {
        .tv heading $col -text $col
    }
    .tv configure -displaycolumns {colB colA colC}
    nostretch .tv
    .tv column colA -width 50 ; .tv column colB -width 50 ; # slack created
    update idletasks ; # redisplay treeview
} -body {
    # only some columns are displayed (and in a different order than declared
    # in -columns), a displayed column becomes stretchable  --> the stretchable
    # column expands
    set res [.tv column colA -width]
    .tv column colA -stretch 1
    update idletasks ; # no slack anymore, widget redisplayed
    lappend res [expr {[.tv column colA -width] > $res}]
} -cleanup {
    destroy .tv
} -result {50 1}

test treeview-ce470f20fd-4 "changing -stretch resizes columns" -setup {
    pack [ttk::treeview .tv -columns {bar colA colB colC foo}]
    foreach col [.tv cget -columns] {
        .tv heading $col -text $col
    }
    .tv configure -displaycolumns {colB colA colC}
    nostretch .tv
    .tv column colA -width 50 ; .tv column bar -width 60 ; # slack created
    update idletasks ; # redisplay treeview
} -body {
    # only some columns are displayed (and in a different order than declared
    # in -columns), a non-displayed column becomes stretchable  --> nothing
    # happens
    set origTreeWidth [winfo width .tv]
    set res [list [.tv column bar -width] [.tv column colA -width]]
    .tv column bar -stretch 1
    update idletasks ; # no change, widget redisplayed
    lappend res [.tv column bar -width] [.tv column colA -width]
    # this column becomes visible  --> widget resizes
    .tv configure -displaycolumns {bar colC colA colB}
    update idletasks ; # no slack anymore because the widget resizes (shrinks)
    lappend res [.tv column bar -width] [.tv column colA -width] \
                [expr {[winfo width .tv] < $origTreeWidth}]
} -cleanup {
    destroy .tv
} -result {60 50 60 50 60 50 1}

tcltest::cleanupTests

    lappend result [wm iconbitmap .t] $bit
    wm iconbitmap .t {}
    set bit [format 0x%x [expr 0x4 & [lindex [testprop [testwrapper .t] \
	    WM_HINTS] 0]]]
    lappend result [wm iconbitmap .t] $bit
} {{} questhead 0x4 {} 0x0}
if {[tk windowingsystem] == "aqua"} {
    set result_22_3 {0 {}}
} else {
    set result_22_3 {1 {bitmap "bad-bitmap" not defined}}
}
test unixWm-22.3 {Tk_WmCmd procedure, "iconbitmap" option for unix only} \
unix {
    list [catch {wm iconbitmap .t bad-bitmap} msg] $msg
} $result_22_3

	    [expr [winfo rootx .t.f] - $x] [expr [winfo rooty .t.f] - $y]
} {52 7 12 62}

deleteWindows
wm withdraw .
if {[tk windowingsystem] == "aqua"} {
    # Modern mac windows have no border.
    set result_50_1 {{} {} .t .t .t2 {} .t2 .t .t}
} else {
    # Windows are assumed to have a border (invisible in Gnome 3).
    set result_50_1 {{} {} .t {} .t2 {} .t2 {} .t}
}
test unixWm-50.1 {Tk_CoordsToWindow procedure, finding a toplevel, x-coords, title bar} unix {
    update
    toplevel .t -width 300 -height 400 -bg green

	 [winfo containing [expr $x +200] [expr $y + 450]]
} {{} {} .t .t .t2 .t2 .t {}}
test unixWm-50.3 {
	Tk_CoordsToWindow procedure, finding a toplevel with embedding
} tempNotWin {
    deleteWindows
    catch {interp delete slave}

    toplevel .t -width 300 -height 400 -bg blue
    wm geom .t +100+100
    frame .t.f -container 1 -bg red
    place .t.f -x 150 -y 50
    tkwait visibility .t.f
    update
    interp create slave

    wm stackorder .
} -cleanup {
    destroy .t
} -result {.t .}
test wm-stackorder-5.2 {A normal toplevel can't be raised above an \
    overrideredirect toplevel on unix} -constraints x11 -body {
    toplevel .t
    tkwait visibility .t
    wm overrideredirect .t 1
    raise .
    update
    raiseDelay
    wm stackorder . isabove .t
} -cleanup {
    destroy .t
} -result 0
test wm-stackorder-5.2.1 {A normal toplevel can be raised above an \
    overrideredirect toplevel on macOS or win} -constraints aquaOrWin32 -body {
    toplevel .t
    tkwait visibility .t
    wm overrideredirect .t 1
    raise .
    update
    raiseDelay
    wm stackorder . isabove .t
} -cleanup {
    destroy .t
} -result 1
test wm-stackorder-5.3 {An overrideredirect window\
        can be explicitly lowered} -body {
    toplevel .t
    tkwait visibility .t
    wm overrideredirect .t 1
    lower .t
    update
    raiseDelay
    wm stackorder .t isbelow .
} -cleanup {
    destroy .t