a few more places

8 files changed, 120 insertions, 103 deletions

diff --git a/unix/tkUnixCursor.c b/unix/tkUnixCursor.c
index 145530a..3103cc1 100644
--- a/unix/tkUnixCursor.c
+++ b/unix/tkUnixCursor.c
@@ -182,7 +182,7 @@ static const struct TkCursorName {
 static Cursor		CreateCursorFromTableOrFile(Tcl_Interp *interp,
 			    Tk_Window tkwin, int argc, const char **argv,
 			    const struct TkCursorName *tkCursorPtr);
-
+
 /*
  *----------------------------------------------------------------------
  *
@@ -357,7 +357,7 @@ TkGetCursorByName(
     Tcl_SetErrorCode(interp, "TK", "VALUE", "CURSOR", NULL);
     return NULL;
 }
-
+
 /*
  *----------------------------------------------------------------------
  *
@@ -426,8 +426,9 @@ CreateCursorFromTableOrFile(
 	data = TkGetBitmapData(NULL, tkCursorPtr->data, NULL,
 		&width, &height, &xHot, &yHot);
 	if (data == NULL) {
-	    Tcl_AppendResult(interp, "error reading bitmap data for \"",
-		    argv[0], "\"", NULL);
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "error reading bitmap data for \"%s\"", argv[0]));
+	    Tcl_SetErrorCode(interp, "TK", "CURSOR", "BITMAPDATA", NULL);
 	    goto cleanup;
 	}
 
@@ -437,19 +438,20 @@ CreateCursorFromTableOrFile(
 	if (TkReadBitmapFile(display, drawable, &argv[0][1],
 		(unsigned *) &width, (unsigned *) &height,
 		&source, &xHot, &yHot) != BitmapSuccess) {
-	    Tcl_AppendResult(interp, "cleanup reading bitmap file \"",
-		    &argv[0][1], "\"", NULL);
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "cleanup reading bitmap file \"%s\"", &argv[0][1]));
+	    Tcl_SetErrorCode(interp, "TK", "CURSOR", "BITMAPFILE", NULL);
 	    goto cleanup;
 	}
     }
 
     if ((xHot < 0) || (yHot < 0) || (xHot >= width) || (yHot >= height)) {
 	if (inTkTable) {
-	    Tcl_AppendResult(interp, "bad hot spot in bitmap data for \"",
-		    argv[0], "\"", NULL);
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "bad hot spot in bitmap data for \"%s\"", argv[0]));
 	} else {
-	    Tcl_AppendResult(interp, "bad hot spot in bitmap file \"",
-		    &argv[0][1], "\"", NULL);
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "bad hot spot in bitmap file \"%s\"", &argv[0][1]));
 	}
 	Tcl_SetErrorCode(interp, "TK", "CURSOR", "HOTSPOT", NULL);
 	goto cleanup;
@@ -465,8 +467,9 @@ CreateCursorFromTableOrFile(
     } else if (argc == 2) {
 	fgColor = argv[1];
 	if (TkParseColor(display, Tk_Colormap(tkwin), fgColor, &fg) == 0) {
-	    Tcl_AppendResult(interp, "invalid color name \"",
-		    fgColor, "\"", NULL);
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "invalid color name \"%s\"", fgColor));
+	    Tcl_SetErrorCode(interp, "TK", "CURSOR", "FGCOL", NULL);
 	    goto cleanup;
 	}
 	if (inTkTable) {
@@ -523,7 +526,7 @@ CreateCursorFromTableOrFile(
 	if (data == NULL) {
 	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
 		    "error reading bitmap mask data for \"%s\"", argv[0]));
-	    Tcl_SetErrorCode(interp, "TK", "CURSOR", "READ", -1);
+	    Tcl_SetErrorCode(interp, "TK", "CURSOR", "MASKDATA", -1);
 	    goto cleanup;
 	}
 
@@ -537,7 +540,7 @@ CreateCursorFromTableOrFile(
 		&mask, &dummy1, &dummy2) != BitmapSuccess) {
 	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
 		    "cleanup reading bitmap file \"%s\"", argv[1]));
-	    Tcl_SetErrorCode(interp, "TK", "CURSOR", "READ", -1);
+	    Tcl_SetErrorCode(interp, "TK", "CURSOR", "MASKFILE", -1);
 	    goto cleanup;
 	}
     }
@@ -561,7 +564,7 @@ CreateCursorFromTableOrFile(
     }
     return cursor;
 }
-
+
 /*
  *----------------------------------------------------------------------
  *
@@ -611,7 +614,7 @@ TkCreateCursorFromData(
     }
     return (TkCursor *) cursorPtr;
 }
-
+
 /*
  *----------------------------------------------------------------------
  *
@@ -638,7 +641,7 @@ TkpFreeCursor(
     XFreeCursor(unixCursorPtr->display, (Cursor) unixCursorPtr->info.cursor);
     Tk_FreeXId(unixCursorPtr->display, (XID) unixCursorPtr->info.cursor);
 }
-
+
 /*
  * Local Variables:
  * mode: c
diff --git a/unix/tkUnixEmbed.c b/unix/tkUnixEmbed.c
index bd5c512..d94157c 100644
--- a/unix/tkUnixEmbed.c
+++ b/unix/tkUnixEmbed.c
@@ -106,12 +106,13 @@ TkpUseWindow(
     Tk_ErrorHandler handler;
     Container *containerPtr;
     XWindowAttributes parentAtts;
-    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+    ThreadSpecificData *tsdPtr =
             Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
 
     if (winPtr->window != None) {
-	Tcl_AppendResult(interp,
-		"can't modify container after widget is created", NULL);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"can't modify container after widget is created", -1));
+	Tcl_SetErrorCode(interp, "TK", "EMBED", "POST_CREATE", NULL);
 	return TCL_ERROR;
     }
     if (Tcl_GetInt(interp, string, &id) != TCL_OK) {
@@ -122,8 +123,10 @@ TkpUseWindow(
     usePtr = (TkWindow *) Tk_IdToWindow(winPtr->display, parent);
     if (usePtr != NULL) {
 	if (!(usePtr->flags & TK_CONTAINER)) {
-	    Tcl_AppendResult(interp, "window \"", usePtr->pathName,
-                    "\" doesn't have -container option set", NULL);
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "window \"%s\" doesn't have -container option set",
+		    usePtr->pathName));
+	    Tcl_SetErrorCode(interp, "TK", "EMBED", "CONTAINER", NULL);
 	    return TCL_ERROR;
 	}
     }
@@ -145,8 +148,9 @@ TkpUseWindow(
     Tk_DeleteErrorHandler(handler);
     if (anyError) {
 	if (interp != NULL) {
-	    Tcl_AppendResult(interp, "couldn't create child of window \"",
-		    string, "\"", NULL);
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "couldn't create child of window \"%s\"", string));
+	    Tcl_SetErrorCode(interp, "TK", "EMBED", "CHILD", NULL);
 	}
 	return TCL_ERROR;
     }
@@ -215,7 +219,7 @@ TkpMakeWindow(
 				 * the window is to be created. */
 {
     Container *containerPtr;
-    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+    ThreadSpecificData *tsdPtr =
             Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
 
     if (winPtr->flags & TK_EMBEDDED) {
@@ -271,7 +275,7 @@ TkpMakeContainer(
 {
     TkWindow *winPtr = (TkWindow *) tkwin;
     Container *containerPtr;
-    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+    ThreadSpecificData *tsdPtr =
             Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
 
     /*
@@ -331,7 +335,7 @@ EmbedErrorProc(
     XErrorEvent *errEventPtr)	/* Points to information about error (not
 				 * used). */
 {
-    int *iPtr = (int *) clientData;
+    int *iPtr = clientData;
 
     *iPtr = 1;
     return 0;
@@ -361,7 +365,7 @@ EmbeddedEventProc(
     ClientData clientData,	/* Token for container window. */
     XEvent *eventPtr)		/* ResizeRequest event. */
 {
-    TkWindow *winPtr = (TkWindow *) clientData;
+    TkWindow *winPtr = clientData;
 
     if (eventPtr->type == DestroyNotify) {
 	EmbedWindowDeleted(winPtr);
@@ -393,10 +397,10 @@ ContainerEventProc(
     ClientData clientData,	/* Token for container window. */
     XEvent *eventPtr)		/* ResizeRequest event. */
 {
-    TkWindow *winPtr = (TkWindow *) clientData;
+    TkWindow *winPtr = clientData;
     Container *containerPtr;
     Tk_ErrorHandler errHandler;
-    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+    ThreadSpecificData *tsdPtr =
             Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
 
     /*
@@ -498,7 +502,7 @@ EmbedStructureProc(
     ClientData clientData,	/* Token for container window. */
     XEvent *eventPtr)		/* ResizeRequest event. */
 {
-    Container *containerPtr = (Container *) clientData;
+    Container *containerPtr = clientData;
     Tk_ErrorHandler errHandler;
 
     if (eventPtr->type == ConfigureNotify) {
@@ -545,7 +549,7 @@ EmbedFocusProc(
     ClientData clientData,	/* Token for container window. */
     XEvent *eventPtr)		/* ResizeRequest event. */
 {
-    Container *containerPtr = (Container *) clientData;
+    Container *containerPtr = clientData;
     Tk_ErrorHandler errHandler;
     Display *display;
 
@@ -703,7 +707,7 @@ TkpGetOtherWindow(
 				 * window. */
 {
     Container *containerPtr;
-    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+    ThreadSpecificData *tsdPtr =
             Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
 
     for (containerPtr = tsdPtr->firstContainerPtr;
@@ -749,7 +753,7 @@ TkpRedirectKeyEvent(
 {
     Container *containerPtr;
     Window saved;
-    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+    ThreadSpecificData *tsdPtr =
             Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
 
     /*
@@ -821,7 +825,7 @@ TkpClaimFocus(
 {
     XEvent event;
     Container *containerPtr;
-    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+    ThreadSpecificData *tsdPtr =
             Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
 
     if (!(topLevelPtr->flags & TK_EMBEDDED)) {
@@ -872,7 +876,7 @@ TkpTestembedCmd(
     Container *containerPtr;
     Tcl_DString dString;
     char buffer[50];
-    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+    ThreadSpecificData *tsdPtr =
             Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
 
     if ((argc > 1) && (strcmp(argv[1], "all") == 0)) {
@@ -942,7 +946,7 @@ EmbedWindowDeleted(
 				 * deleted. */
 {
     Container *containerPtr, *prevPtr;
-    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+    ThreadSpecificData *tsdPtr =
             Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
 
     /*
@@ -1000,7 +1004,7 @@ TkUnixContainerId(
     TkWindow *winPtr)		/* Tk's structure for an embedded window. */
 {
     Container *containerPtr;
-    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+    ThreadSpecificData *tsdPtr =
             Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
 
     for (containerPtr = tsdPtr->firstContainerPtr;
@@ -1132,8 +1136,7 @@ TkpMakeTransparentWindowExist(
  * TkpCreateBusy --
  *
  *	Construct the platform-specific parts of a busy window. Note that this
- *	postpones the actual creation of the window resource until later. The
- *	GetParent() function is a helper for this.
+ *	postpones the actual creation of the window resource until later.
  *
  * Results:
  *	None.
@@ -1144,22 +1147,6 @@ TkpMakeTransparentWindowExist(
  *----------------------------------------------------------------------
  */
 
-static inline Window
-GetParent(
-    Display *display,
-    Window window)
-{
-    Window root, parent;
-    Window *dummy;
-    unsigned int count;
-
-    if (XQueryTree(display, window, &root, &parent, &dummy, &count) > 0) {
-	XFree(dummy);
-	return parent;
-    }
-    return None;
-}
-
 void
 TkpCreateBusy(
     Tk_FakeWin *winPtr,
@@ -1168,6 +1155,9 @@ TkpCreateBusy(
     Tk_Window tkParent,
     TkBusy busy)
 {
+    Window root, parent, *dummy;
+    unsigned int count;
+
     if (winPtr->flags & TK_REPARENTED) {
 	/*
 	 * This works around a bug in the implementation of menubars for
@@ -1177,7 +1167,13 @@ TkpCreateBusy(
 	 * by determining the parent via the native API calls.
 	 */
 
-	*parentPtr = GetParent(Tk_Display(tkRef), Tk_WindowId(tkRef));
+	if (XQueryTree(Tk_Display(tkRef), Tk_WindowId(tkRef), &root,
+		&parent, &dummy, &count) > 0) {
+	    XFree(dummy);
+	    *parentPtr = parent;
+	} else {
+	    *parentPtr = None;
+	}
     } else {
 	*parentPtr = Tk_WindowId(tkParent);
     }
diff --git a/win/tkWinClipboard.c b/win/tkWinClipboard.c
index dcbce6c..2501688 100644
--- a/win/tkWinClipboard.c
+++ b/win/tkWinClipboard.c
@@ -162,9 +162,10 @@ TkSelGetSelection(
     return result;
 
   error:
-    Tcl_AppendResult(interp, Tk_GetAtomName(tkwin, selection),
-	    " selection doesn't exist or form \"",
-	    Tk_GetAtomName(tkwin, target), "\" not defined", NULL);
+    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+	    "%s selection doesn't exist or form \"%s\" not defined",
+	    Tk_GetAtomName(tkwin, selection), Tk_GetAtomName(tkwin, target)));
+    Tcl_SetErrorCode(interp, "TK", "SELECTION", "EXISTS", NULL);
     return TCL_ERROR;
 }
 
diff --git a/win/tkWinCursor.c b/win/tkWinCursor.c
index 8366db3..e7dbc65 100644
--- a/win/tkWinCursor.c
+++ b/win/tkWinCursor.c
@@ -72,8 +72,7 @@ static struct CursorName {
  */
 
 #define TK_DEFAULT_CURSOR	IDC_ARROW
-
-
+
 /*
  *----------------------------------------------------------------------
  *
@@ -131,8 +130,9 @@ TkGetCursorByName(
 	 */
 
 	if (Tcl_IsSafe(interp)) {
-	    Tcl_AppendResult(interp, "can't get cursor from a file in",
-		    " a safe interpreter", NULL);
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "can't get cursor from a file in a safe interpreter",-1));
+	    Tcl_SetErrorCode(interp, "TK", "CURSOR", "SAFE", NULL);
 	    ckfree(argv);
 	    ckfree(cursorPtr);
 	    return NULL;
@@ -166,13 +166,15 @@ TkGetCursorByName(
 	ckfree(cursorPtr);
     badCursorSpec:
 	ckfree(argv);
-	Tcl_AppendResult(interp, "bad cursor spec \"", string, "\"", NULL);
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"bad cursor spec \"%s\"", string));
+	Tcl_SetErrorCode(interp, "TK", "VALUE", "CURSOR", NULL);
 	return NULL;
     }
     ckfree(argv);
     return (TkCursor *) cursorPtr;
 }
-
+
 /*
  *----------------------------------------------------------------------
  *
@@ -201,7 +203,7 @@ TkCreateCursorFromData(
 {
     return NULL;
 }
-
+
 /*
  *----------------------------------------------------------------------
  *
@@ -225,7 +227,7 @@ TkpFreeCursor(
 {
     /* TkWinCursor *winCursorPtr = (TkWinCursor *) cursorPtr; */
 }
-
+
 /*
  *----------------------------------------------------------------------
  *
@@ -260,7 +262,7 @@ TkpSetCursor(
 	SetCursor(hcursor);
     }
 }
-
+
 /*
  * Local Variables:
  * mode: c
diff --git a/win/tkWinEmbed.c b/win/tkWinEmbed.c
index 43cd419..7ea4222 100644
--- a/win/tkWinEmbed.c
+++ b/win/tkWinEmbed.c
@@ -134,7 +134,7 @@ Tk_DetachEmbeddedWindow(
 	TkpWinToplevelOverrideRedirect(winPtr, 0);
     }
 }
-
+
 /*
  *----------------------------------------------------------------------
  *
@@ -243,8 +243,9 @@ TkpUseWindow(
 
 /*
     if (winPtr->window != None) {
-	Tcl_AppendResult(interp,
-		"can't modify container after widget is created", NULL);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"can't modify container after widget is created", -1));
+	Tcl_SetErrorCode(interp, "TK", "EMBED", "POST_CREATE", NULL);
 	return TCL_ERROR;
     }
 */
@@ -272,8 +273,9 @@ TkpUseWindow(
 
     if (!IsWindow(hwnd)) {
 	if (interp != NULL) {
-	    Tcl_AppendResult(interp, "window \"", string,
-		    "\" doesn't exist", NULL);
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "window \"%s\" doesn't exist", string));
+	    Tcl_SetErrorCode(interp, "TK", "EMBED", "EXIST", NULL);
 	}
 	return TCL_ERROR;
     }
@@ -281,12 +283,15 @@ TkpUseWindow(
     id = SendMessage(hwnd, TK_INFO, TK_CONTAINER_VERIFY, 0);
     if (id == PTR2INT(hwnd)) {
 	if (!SendMessage(hwnd, TK_INFO, TK_CONTAINER_ISAVAILABLE, 0)) {
-    	    Tcl_AppendResult(interp, "The container is already in use", NULL);
+    	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "The container is already in use", -1));
+	    Tcl_SetErrorCode(interp, "TK", "EMBED", "USED", NULL);
 	    return TCL_ERROR;
 	}
     } else if (id == -PTR2INT(hwnd)) {
-	Tcl_AppendResult(interp, "the window to use is not a Tk container",
-		NULL);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"the window to use is not a Tk container", -1));
+	Tcl_SetErrorCode(interp, "TK", "EMBED", "NOT", NULL);
 	return TCL_ERROR;
     } else {
 	/*
@@ -300,7 +305,9 @@ TkpUseWindow(
 	sprintf(msg, "Unable to get information of window \"%.80s\".  Attach to this\nwindow may have unpredictable results if it is not a valid container.\n\nPress Ok to proceed or Cancel to abort attaching.", string);
 	if (IDCANCEL == MessageBoxA(hwnd, msg, "Tk Warning",
 		MB_OKCANCEL | MB_ICONWARNING)) {
-    	    Tcl_SetResult(interp, "Operation has been canceled", TCL_STATIC);
+    	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "Operation has been canceled", -1));
+	    Tcl_SetErrorCode(interp, "TK", "EMBED", "CANCEL", NULL);
 	    return TCL_ERROR;
 	}
     }
@@ -935,7 +942,7 @@ Tk_GetEmbeddedHWnd(
     }
     return NULL;
 }
-
+
 /*
  *----------------------------------------------------------------------
  *
diff --git a/win/tkWinMenu.c b/win/tkWinMenu.c
index 245639d..f12e965 100644
--- a/win/tkWinMenu.c
+++ b/win/tkWinMenu.c
@@ -274,7 +274,8 @@ FreeID(
 
     if (tsdPtr->menuHWND != NULL) {
 	Tcl_HashEntry *entryPtr = Tcl_FindHashEntry(&tsdPtr->commandTable,
-		((char *) NULL) + commandID);
+		INT2PTR(commandID));
+
 	if (entryPtr != NULL) {
 	    Tcl_DeleteHashEntry(entryPtr);
 	}
@@ -311,10 +312,10 @@ TkpNewMenu(
 	    Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
 
     winMenuHdl = CreatePopupMenu();
-
     if (winMenuHdl == NULL) {
-    	Tcl_AppendResult(menuPtr->interp, "No more menus can be allocated.",
-    		(char *) NULL);
+    	Tcl_SetObjResult(menuPtr->interp, Tcl_NewStringObj(
+		"No more menus can be allocated.", -1));
+	Tcl_SetErrorCode(interp, "TK", "MENU", "SYSTEM_RESOURCES", NULL);
     	return TCL_ERROR;
     }
 
@@ -923,11 +924,12 @@ UpdateEmbeddedMenu(
 {
     RECT rc;
     HWND hMenuWnd = (HWND)clientData;
+
     GetClientRect(hMenuWnd, &rc);
     InvalidateRect(hMenuWnd, &rc, FALSE);
     UpdateWindow(hMenuWnd);
 }
-
+
 /*
  *----------------------------------------------------------------------
  *
@@ -997,7 +999,7 @@ TkWinEmbeddedMenuProc(
     }
     return lResult;
 }
-
+
 /*
  *----------------------------------------------------------------------
  *
@@ -1090,7 +1092,7 @@ TkWinHandleMenuEvent(
 	    break;
 	}
 	hashEntryPtr = Tcl_FindHashEntry(&tsdPtr->commandTable,
-		((char *) NULL) + LOWORD(*pwParam));
+		INT2PTR(LOWORD(*pwParam)));
 	if (hashEntryPtr == NULL) {
 	    break;
 	}
@@ -1292,7 +1294,7 @@ TkWinHandleMenuEvent(
 			mePtr = menuPtr->entries[entryIndex];
 		    } else {
 			hashEntryPtr = Tcl_FindHashEntry(&tsdPtr->commandTable,
-				((char *) NULL) + entryIndex);
+				INT2PTR(entryIndex));
 			if (hashEntryPtr != NULL) {
 			    mePtr = (TkMenuEntry *)
 				    Tcl_GetHashValue(hashEntryPtr);
diff --git a/win/tkWinSend.c b/win/tkWinSend.c
index a8e2109..a40c238 100644
--- a/win/tkWinSend.c
+++ b/win/tkWinSend.c
@@ -1,4 +1,4 @@
-/*
+`/*
  * tkWinSend.c --
  *
  *	This file provides functions that implement the "send" command,
@@ -136,9 +136,7 @@ Tk_SetAppName(
     HRESULT hr = S_OK;
 
     interp = winPtr->mainPtr->interp;
-
-    tsdPtr = (ThreadSpecificData *)
-	    Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
+    tsdPtr = Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
 
     /*
      * Initialise the COM library for this interpreter just once.
@@ -147,8 +145,9 @@ Tk_SetAppName(
     if (tsdPtr->initialized == 0) {
 	hr = CoInitialize(0);
 	if (FAILED(hr)) {
-	    Tcl_SetResult(interp,
-		    "failed to initialize the COM library", TCL_STATIC);
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "failed to initialize the COM library", -1));
+	    Tcl_SetErrorcode(interp, "TK", "SEND", "COM", NULL);
 	    return "";
 	}
 	tsdPtr->initialized = 1;
@@ -363,8 +362,10 @@ Tk_SendObjCmd(
      */
 
     if (displayPtr) {
-	Tcl_SetResult(interp, "option not implemented: \"displayof\" is "
-		"not available for this platform.", TCL_STATIC);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"option not implemented: \"displayof\" is not available"
+		" for this platform.", -1));
+	Tcl_SetErrorcode(interp, "TK", "SEND", "DISPLAYOF_WIN", NULL);
 	result = TCL_ERROR;
     }
 
@@ -436,9 +437,10 @@ FindInterpreterObject(
 		    pUnkInterp->lpVtbl->Release(pUnkInterp);
 
 		} else {
-		    Tcl_ResetResult(interp);
-		    Tcl_AppendResult(interp,
-			    "no application named \"", name, "\"", NULL);
+		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			    "no application named \"%s\"", name));
+		    Tcl_SetErrorcode(interp, "TK", "LOOKUP", "APPLICATION",
+			    NULL);
 		    result = TCL_ERROR;
 		}
 
diff --git a/win/ttkWinXPTheme.c b/win/ttkWinXPTheme.c
index 08e8a8e..a343216 100644
--- a/win/ttkWinXPTheme.c
+++ b/win/ttkWinXPTheme.c
@@ -1062,7 +1062,8 @@ GetSysFlagFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr, int *resultPtr)
     if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK)
 	return TCL_ERROR;
     if (objc != 2) {
-	Tcl_SetResult(interp, "wrong # args", TCL_STATIC);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj("wrong # args", -1));
+	Tcl_SetErrorCode(interp, "TCL", "WRONGARGS", NULL);
 	return TCL_ERROR;
     }
     for (i = 0; i < objc; ++i) {
@@ -1116,8 +1117,9 @@ Ttk_CreateVsapiElement(
 	   O_HALFHEIGHT, O_HALFWIDTH };
 
     if (objc < 2) {
-	Tcl_AppendResult(interp,
-	    "missing required arguments 'class' and/or 'partId'", NULL);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+	    "missing required arguments 'class' and/or 'partId'", -1));
+	Tcl_SetErrorCode(interp, "TCL", "VSAPI", "REQUIRED", NULL);
 	return TCL_ERROR;
     }
 
@@ -1132,8 +1134,10 @@ Ttk_CreateVsapiElement(
 	for (i = 3; i < objc; i += 2) {
 	    int tmp = 0;
 	    if (i == objc -1) {
-		Tcl_AppendResult(interp, "Missing value for \"",
-			Tcl_GetString(objv[i]), "\".", NULL);
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"Missing value for \"%s\".",
+			Tcl_GetString(objv[i])));
+		Tcl_SetErrorCode(interp, "TCL", "VSAPI", "MISSING", NULL);
 		return TCL_ERROR;
 	    }
 	    if (Tcl_GetIndexFromObj(interp, objv[i], optionStrings,