Tk Source Code

    if (objPtr == NULL) {
	return 1;
    }
    if (objPtr->bytes != NULL) {
	return (objPtr->length == 0);
    }
    (void)Tcl_GetStringFromObj(objPtr, &length);
    return (length == 0);
}

/*
 *----------------------------------------------------------------------
 *
 * GetOption --

    Entry *entryPtr = memPtr;

    /*
     * Free up all the stuff that requires special handling, then let
     * Tk_FreeOptions handle all the standard option-related stuff.
     */

    ckfree((char *)entryPtr->string);
    if (entryPtr->textVarName != NULL) {
	Tcl_UntraceVar(entryPtr->interp, entryPtr->textVarName,
		TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
		EntryTextVarProc, entryPtr);
	entryPtr->flags &= ~ENTRY_VAR_TRACED;
    }
    if (entryPtr->textGC != None) {
	Tk_FreeGC(entryPtr->display, entryPtr->textGC);
    }
    if (entryPtr->selTextGC != None) {
	Tk_FreeGC(entryPtr->display, entryPtr->selTextGC);
    }
    Tcl_DeleteTimerHandler(entryPtr->insertBlinkHandler);
    if (entryPtr->displayString != entryPtr->string) {
	ckfree((char *)entryPtr->displayString);
    }
    if (entryPtr->type == TK_SPINBOX) {
	Spinbox *sbPtr = (Spinbox *) entryPtr;

	if (sbPtr->listObj != NULL) {
	    Tcl_DecrRefCount(sbPtr->listObj);
	    sbPtr->listObj = NULL;

{
    int totalLength, overflow, maxOffScreen, rightX;
    int height, width, i;
    Tk_FontMetrics fm;
    char *p;

    if (entryPtr->displayString != entryPtr->string) {
	ckfree((char *)entryPtr->displayString);
	entryPtr->displayString = entryPtr->string;
	entryPtr->numDisplayBytes = entryPtr->numBytes;
    }

    /*
     * If we're displaying a special character instead of the value of the
     * entry, recompute the displayString.

	    entryPtr->validate == VALIDATE_ALL) &&
	    EntryValidateChange(entryPtr, value, newStr, index,
		    VALIDATE_INSERT) != TCL_OK) {
	ckfree(newStr);
	return;
    }

    ckfree((char *)string);
    entryPtr->string = newStr;

    /*
     * The following construction is used because inserting improperly formed
     * UTF-8 sequences between other improperly formed UTF-8 sequences could
     * result in actually forming valid UTF-8 sequences; the number of
     * characters added may not be Tcl_NumUtfChars(string, -1), because of

		    VALIDATE_DELETE) != TCL_OK) {
	ckfree(newStr);
	ckfree(toDelete);
	return;
    }

    ckfree(toDelete);
    ckfree((char *)entryPtr->string);
    entryPtr->string = newStr;
    entryPtr->numChars -= count;
    entryPtr->numBytes -= byteCount;

    if (entryPtr->displayString == string) {
	entryPtr->displayString = newStr;
	entryPtr->numDisplayBytes = entryPtr->numBytes;

	/*
	 * If VALIDATE_ABORT has been set, then this operation should be
	 * aborted because the validatecommand did something else instead
	 */

	if (entryPtr->flags & VALIDATE_ABORT) {
	    entryPtr->flags &= ~VALIDATE_ABORT;
	    ckfree((char *)value);
	    return;
	}
    }

    oldSource = entryPtr->string;
    ckfree((char *)entryPtr->string);

    if (malloced) {
	entryPtr->string = value;
    } else {
	char *tmp = ckalloc(valueLen + 1);

	strcpy(tmp, value);

	freePtr = tsdPtr->oldFormatList;
	tsdPtr->oldFormatList = tsdPtr->oldFormatList->nextPtr;
	ckfree(freePtr);
    }
    while (tsdPtr->formatList != NULL) {
	freePtr = tsdPtr->formatList;
	tsdPtr->formatList = tsdPtr->formatList->nextPtr;
	ckfree((char *)freePtr->name);
	ckfree(freePtr);
    }
}

/*
 *----------------------------------------------------------------------
 *

     * Tk_ConfigureWidget, such as special processing for defaults, sizing
     * strings, graphics contexts, etc.
     */

    if (mePtr->labelPtr == NULL) {
	mePtr->labelLength = 0;
    } else {
	(void)Tcl_GetStringFromObj(mePtr->labelPtr, &mePtr->labelLength);
    }
    if (mePtr->accelPtr == NULL) {
	mePtr->accelLength = 0;
    } else {
	(void)Tcl_GetStringFromObj(mePtr->accelPtr, &mePtr->accelLength);
    }

    /*
     * If this is a cascade entry, the platform-specific data of the child
     * menu has to be updated. Also, the links that point to parents and
     * cascades have to be updated.
     */

    (objPtr)->internalRep.twoPtrValue.ptr1 = INT2PTR(intval);	\
    (objPtr)->internalRep.twoPtrValue.ptr2 = 0

#define GET_SIMPLEPIXEL(objPtr)				\
    (PTR2INT((objPtr)->internalRep.twoPtrValue.ptr1))

#define SET_COMPLEXPIXEL(objPtr, repPtr)		\
    (objPtr)->internalRep.twoPtrValue.ptr1 = NULL;		\
    (objPtr)->internalRep.twoPtrValue.ptr2 = repPtr

#define GET_COMPLEXPIXEL(objPtr)			\
    ((PixelRep *) (objPtr)->internalRep.twoPtrValue.ptr2)

/*
 * One of these structures is created per thread to store thread-specific

    if (objPtr->typePtr != &mmObjType) {
	result = SetMMFromAny(interp, objPtr);
	if (result != TCL_OK) {
	    return result;
	}
    }

    mmPtr = objPtr->internalRep.twoPtrValue.ptr1;
    if (mmPtr->tkwin != tkwin) {
	d = mmPtr->value;
	if (mmPtr->units == -1) {
	    d /= WidthOfScreen(Tk_Screen(tkwin));
	    d *= WidthMMOfScreen(Tk_Screen(tkwin));
	} else {
	    d *= bias[mmPtr->units];

 *----------------------------------------------------------------------
 */

static void
FreeMMInternalRep(
    Tcl_Obj *objPtr)		/* MM object with internal rep to free. */
{
    ckfree(objPtr->internalRep.twoPtrValue.ptr1);
    objPtr->internalRep.twoPtrValue.ptr1 = NULL;
    objPtr->typePtr = NULL;
}

/*
 *----------------------------------------------------------------------
 *
 * DupMMInternalRep --

DupMMInternalRep(
    register Tcl_Obj *srcPtr,	/* Object with internal rep to copy. */
    register Tcl_Obj *copyPtr)	/* Object with internal rep to set. */
{
    MMRep *oldPtr, *newPtr;

    copyPtr->typePtr = srcPtr->typePtr;
    oldPtr = srcPtr->internalRep.twoPtrValue.ptr1;
    newPtr = ckalloc(sizeof(MMRep));
    newPtr->value = oldPtr->value;
    newPtr->units = oldPtr->units;
    newPtr->tkwin = oldPtr->tkwin;
    newPtr->returnValue = oldPtr->returnValue;
    copyPtr->internalRep.twoPtrValue.ptr1 = newPtr;
}

/*
 *----------------------------------------------------------------------
 *
 * UpdateStringOfMM --
 *

UpdateStringOfMM(
    register Tcl_Obj *objPtr)   /* pixel obj with string rep to update. */
{
    MMRep *mmPtr;
    char buffer[TCL_DOUBLE_SPACE];
    register int len;

    mmPtr = objPtr->internalRep.twoPtrValue.ptr1;
    /* assert( mmPtr->units == -1 && objPtr->bytes == NULL ); */
    if ((mmPtr->units != -1) || (objPtr->bytes != NULL)) {
	Tcl_Panic("UpdateStringOfMM: false precondition");
    }

    Tcl_PrintDouble(NULL, mmPtr->value, buffer);
    len = (int)strlen(buffer);

    mmPtr = ckalloc(sizeof(MMRep));
    mmPtr->value = d;
    mmPtr->units = units;
    mmPtr->tkwin = NULL;
    mmPtr->returnValue	= d;

    objPtr->internalRep.twoPtrValue.ptr1 = mmPtr;

    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *

    int result;

    result = Tcl_ConvertToType(interp, objPtr, &windowObjType);
    if (result != TCL_OK) {
	return result;
    }

    winPtr = objPtr->internalRep.twoPtrValue.ptr1;
    if (winPtr->tkwin == NULL
	    || winPtr->mainPtr == NULL
	    || winPtr->mainPtr != mainPtr
	    || winPtr->epoch != mainPtr->deletionEpoch) {
	/*
	 * Cache is invalid.
	 */

    const Tcl_ObjType *typePtr;
    WindowRep *winPtr;

    /*
     * Free the old internalRep before setting the new one.
     */

    (void)Tcl_GetString(objPtr);
    typePtr = objPtr->typePtr;
    if ((typePtr != NULL) && (typePtr->freeIntRepProc != NULL)) {
	typePtr->freeIntRepProc(objPtr);
    }

    winPtr = ckalloc(sizeof(WindowRep));
    winPtr->tkwin = NULL;
    winPtr->mainPtr = NULL;
    winPtr->epoch = 0;

    objPtr->internalRep.twoPtrValue.ptr1 = winPtr;
    objPtr->typePtr = &windowObjType;

    return TCL_OK;
}

/*
 *----------------------------------------------------------------------

static void
DupWindowInternalRep(
    register Tcl_Obj *srcPtr,
    register Tcl_Obj *copyPtr)
{
    register WindowRep *oldPtr, *newPtr;

    oldPtr = srcPtr->internalRep.twoPtrValue.ptr1;
    newPtr = ckalloc(sizeof(WindowRep));
    newPtr->tkwin = oldPtr->tkwin;
    newPtr->mainPtr = oldPtr->mainPtr;
    newPtr->epoch = oldPtr->epoch;
    copyPtr->internalRep.twoPtrValue.ptr1 = newPtr;
    copyPtr->typePtr = srcPtr->typePtr;
}

/*
 *----------------------------------------------------------------------
 *
 * FreeWindowInternalRep --

 *----------------------------------------------------------------------
 */

static void
FreeWindowInternalRep(
    Tcl_Obj *objPtr)		/* Window object with internal rep to free. */
{
    ckfree(objPtr->internalRep.twoPtrValue.ptr1);
    objPtr->internalRep.twoPtrValue.ptr1 = NULL;
    objPtr->typePtr = NULL;
}

/*
 *----------------------------------------------------------------------
 *
 * TkNewWindowObj --

{
    Tcl_Obj *objPtr = Tcl_NewStringObj(Tk_PathName(tkwin), -1);
    TkMainInfo *mainPtr = ((TkWindow *) tkwin)->mainPtr;
    register WindowRep *winPtr;

    SetWindowFromAny(NULL, objPtr);

    winPtr = objPtr->internalRep.twoPtrValue.ptr1;
    winPtr->tkwin = tkwin;
    winPtr->mainPtr = mainPtr;
    winPtr->epoch = mainPtr->deletionEpoch;
    return objPtr;
}

/*

	return TCL_ERROR;
    }
    result = FormatConfigValue(interp, tkwin, specPtr, widgRec, buffer,
	    &freeProc);
    Tcl_SetObjResult(interp, Tcl_NewStringObj(result, -1));
    if (freeProc != NULL) {
	if ((freeProc == TCL_DYNAMIC) || (freeProc == (Tcl_FreeProc *) free)) {
	    ckfree((char *) result);
	} else {
	    freeProc((char *) result);
	}
    }
    return TCL_OK;
}


    if (objPtr == NULL) {
	return 1;
    }
    if (objPtr->bytes != NULL) {
	return (objPtr->length == 0);
    }
    (void)Tcl_GetStringFromObj(objPtr, &length);
    return (length == 0);
}

/*
 *----------------------------------------------------------------------
 *
 * ComputeInternalPointer --

static void		InitWidgetSpec(StyledWidgetSpec *widgetSpecPtr,
			    StyledElement *elementPtr,
			    Tk_OptionTable optionTable);
static int		SetStyleFromAny(Tcl_Interp *interp, Tcl_Obj *objPtr);

/*
 * The following structure defines the implementation of the "style" Tcl
 * object, used for drawing. The internalRep.twoPtrValue.ptr1 field of each
 * style object points to the Style structure for the stylefont, or NULL.
 */

static const Tcl_ObjType styleObjType = {
    "style",			/* name */
    FreeStyleObjProc,		/* freeIntRepProc */
    DupStyleObjProc,		/* dupIntRepProc */
    NULL,			/* updateStringProc */

				 * retrieve. */
{
    Style *stylePtr;

    if (objPtr->typePtr != &styleObjType) {
	SetStyleFromAny(interp, objPtr);
    }
    stylePtr = objPtr->internalRep.twoPtrValue.ptr1;

    return (Tk_Style) stylePtr;
}

/*
 *----------------------------------------------------------------------
 *

Tk_GetStyleFromObj(
    Tcl_Obj *objPtr)		/* The object from which to get the style. */
{
    if (objPtr->typePtr != &styleObjType) {
	SetStyleFromAny(NULL, objPtr);
    }

    return objPtr->internalRep.twoPtrValue.ptr1;
}

/*
 *---------------------------------------------------------------------------
 *
 * Tk_FreeStyleFromObj --
 *

    name = Tcl_GetString(objPtr);
    typePtr = objPtr->typePtr;
    if ((typePtr != NULL) && (typePtr->freeIntRepProc != NULL)) {
	typePtr->freeIntRepProc(objPtr);
    }

    objPtr->typePtr = &styleObjType;
    objPtr->internalRep.twoPtrValue.ptr1 = Tk_GetStyle(interp, name);

    return TCL_OK;
}

/*
 *---------------------------------------------------------------------------
 *

 *---------------------------------------------------------------------------
 */

static void
FreeStyleObjProc(
    Tcl_Obj *objPtr)		/* The object we are releasing. */
{
    objPtr->internalRep.twoPtrValue.ptr1 = NULL;
    objPtr->typePtr = NULL;
}

/*
 *---------------------------------------------------------------------------
 *
 * DupStyleObjProc --
 *
 *	When a cached style object is duplicated, this is called to update the
 *	internal reps.
 *
 *---------------------------------------------------------------------------
 */

static void
DupStyleObjProc(
    Tcl_Obj *srcObjPtr,		/* The object we are copying from. */
    Tcl_Obj *dupObjPtr)		/* The object we are copying to. */
{
    dupObjPtr->typePtr = srcObjPtr->typePtr;
    dupObjPtr->internalRep.twoPtrValue.ptr1 =
	    srcObjPtr->internalRep.twoPtrValue.ptr1;
}

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

    Tcl_Interp *interp)		/* Interpreter for application. */
{
    static int initialized = 0;

    if (Tcl_InitStubs(interp, "8.1", 0) == NULL) {
	return TCL_ERROR;
    }
    if (Tk_InitStubs(interp, TK_VERSION, 0) == NULL) {
	return TCL_ERROR;
    }

    /*
     * Create additional commands for testing Tk.
     */

    if (value == NULL) {
	objEmpty = 1;
	CLANG_ASSERT(value);
    } else if ((*value)->bytes != NULL) {
	objEmpty = ((*value)->length == 0);
    } else {
	(void)Tcl_GetStringFromObj(*value, &length);
	objEmpty = (length == 0);
    }

    if ((flags & TK_OPTION_NULL_OK) && objEmpty) {
	*value = NULL;
    } else {
	string = Tcl_GetStringFromObj(*value, &length);
	Tcl_UtfToUpper(string);
	if (strcmp(string, "BAD") == 0) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj("expected good value, got \"BAD\"", -1));
	    return TCL_ERROR;
	}
    }
    if (internalPtr != NULL) {
	if (*valu) != NULL) {
	    string = Tcl_GetStringFromObj(*value, &length);
	    newStr = ckalloc(length + 1);
	    strcpy(newStr, string);
	} else {
	    newStr = NULL;
	}
	*((char **) saveInternalPtr) = *((char **) internalPtr);
	*((char **) internalPtr) = newStr;

    if (objPtr == NULL) {
	return 1;
    }
    if (objPtr->bytes != NULL) {
	return (objPtr->length == 0);
    }
    (void)Tcl_GetStringFromObj(objPtr, &length);
    return (length == 0);
}

/*
 *----------------------------------------------------------------------
 *
 * TkpTesttextCmd --

EntryIndex(
    Tcl_Interp *interp,		/* For error messages. */
    Entry *entryPtr,		/* Entry widget to query */
    Tcl_Obj *indexObj,		/* Symbolic index name */
    int *indexPtr)		/* Return value */
{
#   define EntryWidth(e) (Tk_Width(entryPtr->core.tkwin)) /* Not Right */

    const char *string = Tcl_GetString(indexObj);
    size_t length = indexObj->length;

    if (strncmp(string, "end", length) == 0) {
	*indexPtr = entryPtr->entry.numChars;
    } else if (strncmp(string, "insert", length) == 0) {
	*indexPtr = entryPtr->entry.insertPos;
    } else if (strncmp(string, "left", length) == 0) {	/* for debugging */
	*indexPtr = entryPtr->entry.xscroll.first;

	*p++ = '.';
	*p++ = '*';
	*p++ = '\0';
	*p++ = '\0';
	*p = '\0';

    } else {
	size_t len;

	if (valuePtr == NULL) {
	    len = 0;
	} else {
	    (void) Tcl_GetString(valuePtr);
	    len = valuePtr->length;
	}

	/*
	 * We format the filetype into a string understood by Windows: {"Text
	 * Documents" {.doc .txt} {TEXT}} becomes "Text Documents
	 * (*.doc,*.txt)\0*.doc;*.txt\0"
	 *

	if (r == TCL_OK) {
	    Tcl_SetObjResult(interp, dictObj);
	}
	return r;
    }

    for (i = 1; i < objc; i += 2) {
	int optionIndex;

	if (Tcl_GetIndexFromObjStruct(interp, objv[i], optionStrings,
		sizeof(char *),  "option", 0, &optionIndex) != TCL_OK) {
	    return TCL_ERROR;
	}
	if (objc == 2) {
	    /*

	    }
	    Tcl_IncrRefCount(hdPtr->titleObj);
	    break;
	case FontchooserFont:
	    if (hdPtr->fontObj) {
		Tcl_DecrRefCount(hdPtr->fontObj);
	    }
	    (void)Tcl_GetString(objv[i+1]);
	    if (objv[i+1]->length) {
		hdPtr->fontObj = objv[i+1];
		if (Tcl_IsShared(hdPtr->fontObj)) {
		    hdPtr->fontObj = Tcl_DuplicateObj(hdPtr->fontObj);
		}
		Tcl_IncrRefCount(hdPtr->fontObj);
	    } else {
		hdPtr->fontObj = NULL;
	    }
	    break;
	case FontchooserCmd:
	    if (hdPtr->cmdObj) {
		Tcl_DecrRefCount(hdPtr->cmdObj);
	    }
	    (void)Tcl_GetString(objv[i+1]);
	    if (objv[i+1]->length) {
		hdPtr->cmdObj = objv[i+1];
		if (Tcl_IsShared(hdPtr->cmdObj)) {
		    hdPtr->cmdObj = Tcl_DuplicateObj(hdPtr->cmdObj);
		}
		Tcl_IncrRefCount(hdPtr->cmdObj);
	    } else {
		hdPtr->cmdObj = NULL;

	WMOPT_ICONPHOTO, WMOPT_ICONPOSITION,
	WMOPT_ICONWINDOW, WMOPT_MANAGE, WMOPT_MAXSIZE, WMOPT_MINSIZE,
	WMOPT_OVERRIDEREDIRECT,
	WMOPT_POSITIONFROM, WMOPT_PROTOCOL, WMOPT_RESIZABLE, WMOPT_SIZEFROM,
	WMOPT_STACKORDER, WMOPT_STATE, WMOPT_TITLE, WMOPT_TRANSIENT,
	WMOPT_WITHDRAW
    };
    int index;
    size_t length;
    const char *argv1;
    TkWindow *winPtr, **winPtrPtr = &winPtr;
    TkDisplay *dispPtr = ((TkWindow *) tkwin)->dispPtr;

    if (objc < 2) {
    wrongNumArgs:
	Tcl_WrongNumArgs(interp, 1, objv, "option window ?arg ...?");
	return TCL_ERROR;
    }

    argv1 = Tcl_GetString(objv[1]);
    length = objv[1]->length;
    if ((argv1[0] == 't') && !strncmp(argv1, "tracing", objv[1]->length)
	    && (length >= 3)) {
	int wmTracing;

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

    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    LONG style, exStyle, styleBit, *stylePtr = NULL;
    const char *string;
    int i, boolean;
    size_t length;
    int config_fullscreen = 0, updatewrapper = 0;
    int fullscreen_attr_changed = 0, fullscreen_attr = 0;

    if ((objc < 3) || ((objc > 5) && ((objc%2) == 0))) {
    configArgs:
	Tcl_WrongNumArgs(interp, 2, objv,
		"window"

		Tcl_NewStringObj("-topmost", -1));
	Tcl_ListObjAppendElement(NULL, objPtr,
		Tcl_NewBooleanObj((exStyle & WS_EX_TOPMOST)));
	Tcl_SetObjResult(interp, objPtr);
	return TCL_OK;
    }
    for (i = 3; i < objc; i += 2) {
	string = Tcl_GetString(objv[i]);
	length = objv[i]->length;
	if ((length < 2) || (string[0] != '-')) {
	    goto configArgs;
	}
	if (strncmp(string, "-disabled", length) == 0) {
	    stylePtr = &style;
	    styleBit = WS_DISABLED;
	} else if ((strncmp(string, "-alpha", length) == 0)
		|| ((length > 2) && (strncmp(string, "-transparentcolor",
			length) == 0))) {
	    stylePtr = &exStyle;
	    styleBit = WS_EX_LAYERED;
	} else if (strncmp(string, "-fullscreen", length) == 0) {
	    config_fullscreen = 1;
	    styleBit = 0;
	} else if ((length > 3)
		&& (strncmp(string, "-toolwindow", length) == 0)) {
	    stylePtr = &exStyle;
	    styleBit = WS_EX_TOOLWINDOW;
	    if (objc != 4) {
		/*
		 * Changes to toolwindow style require an update
		 */
		updatewrapper = 1;
	    }
	} else if ((length > 3)
		&& (strncmp(string, "-topmost", length) == 0)) {
	    stylePtr = &exStyle;
	    styleBit = WS_EX_TOPMOST;
	    if ((i < objc-1) && (winPtr->flags & TK_EMBEDDED)) {
		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
			"can't set topmost flag on %s: it is an embedded window",
			winPtr->pathName));
		Tcl_SetErrorCode(interp, "TK", "WM", "ATTR", "TOPMOST", NULL);

		    if (dval < 0.0) {
			dval = 0;
		    } else if (dval > 1.0) {
			dval = 1;
		    }
		    wmPtr->alpha = dval;
		} else {			/* -transparentcolor */
		    const char *crefstr = Tcl_GetString(objv[i+1]);

		    length = objv[i+1]->length;
		    if (length == 0) {
			/* reset to no transparent color */
			if (wmPtr->crefObj) {
			    Tcl_DecrRefCount(wmPtr->crefObj);
			    wmPtr->crefObj = NULL;
			}
		    } else {

    TkWindow *winPtr,		/* Toplevel to work with */
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    const char *argv3;
    size_t length;

    if ((objc != 3) && (objc != 4)) {
	Tcl_WrongNumArgs(interp, 2, objv, "window ?name?");
	return TCL_ERROR;
    }
    if (objc == 3) {
	if (wmPtr->clientMachine != NULL) {
	    Tcl_SetObjResult(interp,
		    Tcl_NewStringObj(wmPtr->clientMachine, -1));
	}
	return TCL_OK;
    }
    argv3 = Tcl_GetString(objv[3]);
    length = objv[3]->length;
    if (argv3[0] == 0) {
	if (wmPtr->clientMachine != NULL) {
	    ckfree(wmPtr->clientMachine);
	    wmPtr->clientMachine = NULL;
	    if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
		XDeleteProperty(winPtr->display, winPtr->window,
			Tk_InternAtom((Tk_Window) winPtr,"WM_CLIENT_MACHINE"));
	    }
	}
	return TCL_OK;
    }
    if (wmPtr->clientMachine != NULL) {
	ckfree(wmPtr->clientMachine);
    }
    wmPtr->clientMachine = ckalloc(length + 1);
    memcpy(wmPtr->clientMachine, argv3, length + 1);
    if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
	XTextProperty textProp;

	if (XStringListToTextProperty(&wmPtr->clientMachine, 1, &textProp)
		!= 0) {
	    XSetWMClientMachine(winPtr->display, winPtr->window,
		    &textProp);

    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    Tk_Window tkwin2;
    const char *argv3;
    size_t length;

    if ((objc != 3) && (objc != 4)) {
	Tcl_WrongNumArgs(interp, 2, objv, "window ?pathName?");
	return TCL_ERROR;
    }
    if (objc == 3) {
	if (wmPtr->hints.flags & WindowGroupHint) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(wmPtr->leaderName, -1));
	}
	return TCL_OK;
    }
    argv3 = Tcl_GetString(objv[3]);
    length = objv[3]->length;
    if (*argv3 == '\0') {
	wmPtr->hints.flags &= ~WindowGroupHint;
	if (wmPtr->leaderName != NULL) {
	    ckfree(wmPtr->leaderName);
	}
	wmPtr->leaderName = NULL;
    } else {
	if (TkGetWindowFromObj(interp, tkwin, objv[3], &tkwin2) != TCL_OK) {
	    return TCL_ERROR;
	}
	Tk_MakeWindowExist(tkwin2);
	if (wmPtr->leaderName != NULL) {
	    ckfree(wmPtr->leaderName);
	}
	wmPtr->hints.window_group = Tk_WindowId(tkwin2);
	wmPtr->hints.flags |= WindowGroupHint;
	wmPtr->leaderName = ckalloc(length + 1);
	memcpy(wmPtr->leaderName, argv3, length + 1);
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *

    TkWindow *winPtr,		/* Toplevel to work with */
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    const char *argv3;
    size_t length;

    if (objc > 4) {
	Tcl_WrongNumArgs(interp, 2, objv, "window ?newName?");
	return TCL_ERROR;
    }
    if (objc == 3) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		(wmPtr->iconName ? wmPtr->iconName : ""), -1));
	return TCL_OK;
    } else {
	if (wmPtr->iconName != NULL) {
	    ckfree(wmPtr->iconName);
	}
	argv3 = Tcl_GetString(objv[3]);
	length = objv[3]->length;
	wmPtr->iconName = ckalloc(length + 1);
	memcpy(wmPtr->iconName, argv3, length + 1);
	if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
	    XSetIconName(winPtr->display, winPtr->window, wmPtr->iconName);
	}
    }
    return TCL_OK;
}


    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    register ProtocolHandler *protPtr, *prevPtr;
    Atom protocol;
    const char *cmd;
    size_t cmdLength;
    Tcl_Obj *resultObj;

    if ((objc < 3) || (objc > 5)) {
	Tcl_WrongNumArgs(interp, 2, objv, "window ?name? ?command?");
	return TCL_ERROR;
    }
    if (objc == 3) {

	    } else {
		prevPtr->nextPtr = protPtr->nextPtr;
	    }
	    Tcl_EventuallyFree(protPtr, TCL_DYNAMIC);
	    break;
	}
    }
    cmd = Tcl_GetString(objv[4]);
    cmdLength = objv[4]->length;
    if (cmdLength > 0) {
	protPtr = ckalloc(HANDLER_SIZE(cmdLength));
	protPtr->protocol = protocol;
	protPtr->nextPtr = wmPtr->protPtr;
	wmPtr->protPtr = protPtr;
	protPtr->interp = interp;
	memcpy(protPtr->command, cmd, cmdLength + 1);

    TkWindow *winPtr,		/* Toplevel to work with */
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    const char *argv3;
    size_t length;
    HWND wrapper;

    if (objc > 4) {
	Tcl_WrongNumArgs(interp, 2, objv, "window ?newTitle?");
	return TCL_ERROR;
    }

	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    (wmPtr->title ? wmPtr->title : winPtr->nameUid), -1));
	}
    } else {
	if (wmPtr->title != NULL) {
	    ckfree(wmPtr->title);
	}
	argv3 = Tcl_GetString(objv[3]);
	length = objv[3]->length;
	wmPtr->title = ckalloc(length + 1);
	memcpy(wmPtr->title, argv3, length + 1);

	if (!(wmPtr->flags & WM_NEVER_MAPPED) && wmPtr->wrapper != NULL) {
	    Tcl_DString titleString;

	    Tcl_WinUtfToTChar(wmPtr->title, -1, &titleString);
	    SetWindowText(wrapper, (LPCTSTR) Tcl_DStringValue(&titleString));
	    Tcl_DStringFree(&titleString);