More implicit type-casts, for C++ compatibility.

22 files changed, 141 insertions, 134 deletions

diff --git a/generic/tkCanvas.c b/generic/tkCanvas.c
index 2ce5e50..0e4e872 100644
--- a/generic/tkCanvas.c
+++ b/generic/tkCanvas.c
@@ -2450,6 +2450,10 @@ DisplayCanvas(
     Tk_Item *itemPtr;
     Pixmap pixmap;
     int screenX1, screenX2, screenY1, screenY2, width, height;
+#ifdef MAC_OSX_TK
+    TkWindow *winPtr;
+    MacDrawable *macWin;
+#endif
 
     if (canvasPtr->tkwin == NULL) {
 	return;
@@ -2464,8 +2468,8 @@ DisplayCanvas(
      * If drawing is disabled, all we need to do is
      * clear the REDRAW_PENDING flag.
      */
-    TkWindow *winPtr = (TkWindow *)(canvasPtr->tkwin);
-    MacDrawable *macWin = winPtr->privatePtr;
+    winPtr = (TkWindow *)(canvasPtr->tkwin);
+    macWin = winPtr->privatePtr;
     if (macWin && (macWin->flags & TK_DO_NOT_DRAW)){
 	canvasPtr->flags &= ~REDRAW_PENDING;
 	return;
diff --git a/macosx/tkMacOSXBitmap.c b/macosx/tkMacOSXBitmap.c
index 4c77d92..4f51fc6 100644
--- a/macosx/tkMacOSXBitmap.c
+++ b/macosx/tkMacOSXBitmap.c
@@ -257,7 +257,7 @@ TkpGetNativeAppBitmap(
     if (iconBitmapTable.buckets &&
 	    (hPtr = Tcl_FindHashEntry(&iconBitmapTable, name))) {
 	OSType type;
-	IconBitmap *iconBitmap = Tcl_GetHashValue(hPtr);
+	IconBitmap *iconBitmap = (IconBitmap *)Tcl_GetHashValue(hPtr);
 	name = NULL;
 	size = NSMakeSize(iconBitmap->width, iconBitmap->height);
 	switch (iconBitmap->kind) {
@@ -403,7 +403,7 @@ TkMacOSXIconBitmapObjCmd(
     }
     hPtr = Tcl_CreateHashEntry(&iconBitmapTable, name, &isNew);
     if (!isNew) {
-	iconBitmap = Tcl_GetHashValue(hPtr);
+	iconBitmap = (IconBitmap *)Tcl_GetHashValue(hPtr);
 	ckfree(iconBitmap->value);
     } else {
 	iconBitmap = (IconBitmap *)ckalloc(sizeof(IconBitmap));
diff --git a/macosx/tkMacOSXButton.c b/macosx/tkMacOSXButton.c
index 857ce34..b083531 100644
--- a/macosx/tkMacOSXButton.c
+++ b/macosx/tkMacOSXButton.c
@@ -181,8 +181,8 @@ void
 TkpDisplayButton(
     ClientData clientData)	/* Information about widget. */
 {
-    MacButton *macButtonPtr = clientData;
-    TkButton *butPtr = clientData;
+    MacButton *macButtonPtr = (MacButton *)clientData;
+    TkButton *butPtr = (TkButton *)clientData;
     Tk_Window tkwin = butPtr->tkwin;
     Pixmap pixmap;
     DrawParams* dpPtr = &macButtonPtr->drawParams;
@@ -901,8 +901,8 @@ ButtonEventProc(
     ClientData clientData,	/* Information about window. */
     XEvent *eventPtr)		/* Information about event. */
 {
-    TkButton *buttonPtr = clientData;
-    MacButton *mbPtr = clientData;
+    TkButton *buttonPtr = (TkButton *)clientData;
+    MacButton *mbPtr = (MacButton *)clientData;
 
     if (eventPtr->type == ActivateNotify
 	    || eventPtr->type == DeactivateNotify) {
@@ -957,7 +957,7 @@ TkMacOSXComputeButtonParams(
         *btnkind = kThemePushButton;
     }
 
-    if ((butPtr->image == None) && (butPtr->bitmap == None)) {
+    if ((butPtr->image == NULL) && (butPtr->bitmap == None)) {
         switch (butPtr->type) {
 	case TYPE_BUTTON:
 	    *btnkind = kThemePushButton;
@@ -1174,7 +1174,7 @@ TkMacOSXComputeButtonDrawParams(
 static void
 PulseDefaultButtonProc(ClientData clientData)
 {
-    MacButton *mbPtr = clientData;
+    MacButton *mbPtr = (MacButton *)clientData;
 
     TkpDisplayButton(clientData);
     /*
diff --git a/macosx/tkMacOSXColor.h b/macosx/tkMacOSXColor.h
index 0f4518d..deffbbc 100644
--- a/macosx/tkMacOSXColor.h
+++ b/macosx/tkMacOSXColor.h
@@ -250,7 +250,7 @@ static SystemColorDatum systemColorData[] = {
 {"PlaceholderTextColor",	    semantic, 0, "grayColor", 0, NULL },
 {"SeparatorColor",		    semantic, 0, "grayColor", 0, NULL },
 {"UnemphasizedSelectedTextBackgroundColor", semantic, 0, "grayColor", 0, NULL },
-{NULL,				    0, 0, NULL, 0, NULL }
+{NULL,				    rgbColor, 0, NULL, 0, NULL }
 };
 
 #endif
diff --git a/macosx/tkMacOSXCursor.c b/macosx/tkMacOSXCursor.c
index 191aa7e..dc5b61a 100644
--- a/macosx/tkMacOSXCursor.c
+++ b/macosx/tkMacOSXCursor.c
@@ -551,7 +551,7 @@ TkpSetCursor(
 	return;
     }
 
-    if (cursor == None) {
+    if (cursor == NULL) {
 	/*
 	 * This is a little tricky. We can't really tell whether
 	 * gCurrentCursor is NULL because it was NULL last time around or
diff --git a/macosx/tkMacOSXDialog.c b/macosx/tkMacOSXDialog.c
index 89035ab..4bcaedf 100644
--- a/macosx/tkMacOSXDialog.c
+++ b/macosx/tkMacOSXDialog.c
@@ -221,7 +221,7 @@ getFileURL(
 		returnCode: (NSModalResponse) returnCode
 	       contextInfo: (void *) contextInfo
 {
-    FilePanelCallbackInfo *callbackInfo = contextInfo;
+    FilePanelCallbackInfo *callbackInfo = (FilePanelCallbackInfo *)contextInfo;
 
     if (returnCode == modalOK) {
 	Tcl_Obj *resultObj;
@@ -266,7 +266,7 @@ getFileURL(
 - (void) tkAlertDidEnd: (NSAlert *) alert returnCode: (NSInteger) returnCode
 	contextInfo: (void *) contextInfo
 {
-    AlertCallbackInfo *callbackInfo = contextInfo;
+    AlertCallbackInfo *callbackInfo = (AlertCallbackInfo *)contextInfo;
 
     if (returnCode >= NSAlertFirstButtonReturn) {
 	Tcl_Obj *resultObj = Tcl_NewStringObj(alertButtonStrings[
@@ -422,7 +422,7 @@ Tk_ChooseColorObjCmd(
     Tcl_Obj *const objv[])	/* Argument objects. */
 {
     int result = TCL_ERROR;
-    Tk_Window parent, tkwin = clientData;
+    Tk_Window parent, tkwin = (Tk_Window)clientData;
     const char *title = NULL;
     int i;
     NSColor *color = nil, *initialColor = nil;
@@ -677,7 +677,7 @@ Tk_GetOpenFileObjCmd(
     int objc,			/* Number of arguments. */
     Tcl_Obj *const objv[])	/* Argument objects. */
 {
-    Tk_Window tkwin = clientData;
+    Tk_Window tkwin = (Tk_Window)clientData;
     char *str;
     int i, result = TCL_ERROR, haveParentOption = 0;
     int index, len, multiple = 0;
@@ -1679,10 +1679,10 @@ FontchooserEvent(
     if (!fontchooserInterp) {
 	return;
     }
-    fcdPtr = Tcl_GetAssocData(fontchooserInterp, "::tk::fontchooser", NULL);
+    fcdPtr = (FontchooserData *)Tcl_GetAssocData(fontchooserInterp, "::tk::fontchooser", NULL);
     switch (kind) {
     case FontchooserClosed:
-	if (fcdPtr->parent != None) {
+	if (fcdPtr->parent != NULL) {
 	    TkSendVirtualEvent(fcdPtr->parent, "TkFontchooserVisibility", NULL);
 	    fontchooserInterp = NULL;
 	}
@@ -1738,7 +1738,7 @@ FontchooserCget(
 
     switch(optionIndex) {
     case FontchooserParent:
-	if (fcdPtr->parent != None) {
+	if (fcdPtr->parent != NULL) {
 	    resObj = Tcl_NewStringObj(
 		    ((TkWindow *)fcdPtr->parent)->pathName, -1);
 	} else {
@@ -1801,7 +1801,7 @@ FontchooserConfigureCmd(
     Tcl_Obj *const objv[])
 {
     Tk_Window tkwin = (Tk_Window)clientData;
-    FontchooserData *fcdPtr = Tcl_GetAssocData(interp, "::tk::fontchooser",
+    FontchooserData *fcdPtr = (FontchooserData *)Tcl_GetAssocData(interp, "::tk::fontchooser",
 	    NULL);
     int i, r = TCL_OK;
 
@@ -1858,7 +1858,7 @@ FontchooserConfigureCmd(
 	    Tk_Window parent = Tk_NameToWindow(interp,
 		    Tcl_GetString(objv[i+1]), tkwin);
 
-	    if (parent == None) {
+	    if (parent == NULL) {
 		return TCL_ERROR;
 	    }
 	    if (fcdPtr->parent) {
@@ -1885,7 +1885,7 @@ FontchooserConfigureCmd(
 		fcdPtr->titleObj = NULL;
 	    }
 	    break;
-	case FontchooserFont:
+	case FontchooserFont: {
 	    Tcl_GetStringFromObj(objv[i+1], &len);
 	    if (len) {
 		Tk_Font f = Tk_AllocFontFromObj(interp, tkwin, objv[i+1]);
@@ -1919,6 +1919,7 @@ FontchooserConfigureCmd(
 			"TkFontchooserFontChanged", NULL);
 	    }
 	    break;
+	}
 	case FontchooserCmd:
 	    if (fcdPtr->cmdObj) {
 		Tcl_DecrRefCount(fcdPtr->cmdObj);
@@ -1964,10 +1965,10 @@ FontchooserShowCmd(
     TCL_UNUSED(int),
     TCL_UNUSED(Tcl_Obj *const *))
 {
-    FontchooserData *fcdPtr = Tcl_GetAssocData(interp, "::tk::fontchooser",
+    FontchooserData *fcdPtr = (FontchooserData *)Tcl_GetAssocData(interp, "::tk::fontchooser",
 	    NULL);
 
-    if (fcdPtr->parent == None) {
+    if (fcdPtr->parent == NULL) {
 	fcdPtr->parent = (Tk_Window)clientData;
 	Tk_CreateEventHandler(fcdPtr->parent, StructureNotifyMask,
 		FontchooserParentEventHandler, fcdPtr);
@@ -2042,7 +2043,7 @@ FontchooserParentEventHandler(
     ClientData clientData,
     XEvent *eventPtr)
 {
-    FontchooserData *fcdPtr = clientData;
+    FontchooserData *fcdPtr = (FontchooserData *)clientData;
 
     if (eventPtr->type == DestroyNotify) {
 	Tk_DeleteEventHandler(fcdPtr->parent, StructureNotifyMask,
@@ -2074,7 +2075,7 @@ DeleteFontchooserData(
     ClientData clientData,
     Tcl_Interp *interp)
 {
-    FontchooserData *fcdPtr = clientData;
+    FontchooserData *fcdPtr = (FontchooserData *)clientData;
 
     if (fcdPtr->titleObj) {
 	Tcl_DecrRefCount(fcdPtr->titleObj);
diff --git a/macosx/tkMacOSXDraw.c b/macosx/tkMacOSXDraw.c
index 22b6a45..ac5c721 100644
--- a/macosx/tkMacOSXDraw.c
+++ b/macosx/tkMacOSXDraw.c
@@ -1355,35 +1355,37 @@ TkMacOSXSetupDrawingContext(
      * Finish configuring the drawing context.
      */
 
-    CGAffineTransform t = {
-	.a = 1, .b = 0,
-	.c = 0, .d = -1,
-	.tx = 0,
-	.ty = dc.portBounds.size.height
-    };
-
-    dc.portBounds.origin.x += macDraw->xOff;
-    dc.portBounds.origin.y += macDraw->yOff;
-    CGContextSaveGState(dc.context);
-    CGContextSetTextDrawingMode(dc.context, kCGTextFill);
-    CGContextConcatCTM(dc.context, t);
-    if (dc.clipRgn) {
+    {
+	CGAffineTransform t = {
+	    .a = 1, .b = 0,
+	    .c = 0, .d = -1,
+	    .tx = 0,
+	    .ty = dc.portBounds.size.height
+	};
 
-#ifdef TK_MAC_DEBUG_DRAWING
+	dc.portBounds.origin.x += macDraw->xOff;
+	dc.portBounds.origin.y += macDraw->yOff;
 	CGContextSaveGState(dc.context);
-	ChkErr(HIShapeReplacePathInCGContext, dc.clipRgn, dc.context);
-	CGContextSetRGBFillColor(dc.context, 1.0, 0.0, 0.0, 0.1);
-	CGContextEOFillPath(dc.context);
-	CGContextRestoreGState(dc.context);
-#endif /* TK_MAC_DEBUG_DRAWING */
+	CGContextSetTextDrawingMode(dc.context, kCGTextFill);
+	CGContextConcatCTM(dc.context, t);
+	if (dc.clipRgn) {
 
-	CGRect r;
-	CGRect b = CGRectApplyAffineTransform(
-	    CGContextGetClipBoundingBox(dc.context), t);
-	if (!HIShapeIsRectangular(dc.clipRgn) ||
-	    !CGRectContainsRect(*HIShapeGetBounds(dc.clipRgn, &r), b)) {
+#ifdef TK_MAC_DEBUG_DRAWING
+	    CGContextSaveGState(dc.context);
 	    ChkErr(HIShapeReplacePathInCGContext, dc.clipRgn, dc.context);
-	    CGContextEOClip(dc.context);
+	    CGContextSetRGBFillColor(dc.context, 1.0, 0.0, 0.0, 0.1);
+	    CGContextEOFillPath(dc.context);
+	    CGContextRestoreGState(dc.context);
+#endif /* TK_MAC_DEBUG_DRAWING */
+
+	    CGRect r;
+	    CGRect b = CGRectApplyAffineTransform(
+		CGContextGetClipBoundingBox(dc.context), t);
+	    if (!HIShapeIsRectangular(dc.clipRgn) ||
+		!CGRectContainsRect(*HIShapeGetBounds(dc.clipRgn, &r), b)) {
+		ChkErr(HIShapeReplacePathInCGContext, dc.clipRgn, dc.context);
+		CGContextEOClip(dc.context);
+	    }
 	}
     }
     if (gc) {
diff --git a/macosx/tkMacOSXEmbed.c b/macosx/tkMacOSXEmbed.c
index dc43726..4af2e75 100644
--- a/macosx/tkMacOSXEmbed.c
+++ b/macosx/tkMacOSXEmbed.c
@@ -739,7 +739,7 @@ EmbeddedEventProc(
     ClientData clientData,	/* Token for container window. */
     XEvent *eventPtr)		/* ResizeRequest event. */
 {
-    TkWindow *winPtr = clientData;
+    TkWindow *winPtr = (TkWindow *)clientData;
 
     if (eventPtr->type == DestroyNotify) {
 	EmbedWindowDeleted(winPtr);
@@ -774,7 +774,7 @@ ContainerEventProc(
     ClientData clientData,	/* Token for container window. */
     XEvent *eventPtr)		/* ResizeRequest event. */
 {
-    TkWindow *winPtr = clientData;
+    TkWindow *winPtr = (TkWindow *)clientData;
     Container *containerPtr;
     Tk_ErrorHandler errHandler;
 
@@ -882,7 +882,7 @@ EmbedStructureProc(
     ClientData clientData,	/* Token for container window. */
     XEvent *eventPtr)		/* ResizeRequest event. */
 {
-    Container *containerPtr = clientData;
+    Container *containerPtr = (Container *)clientData;
     Tk_ErrorHandler errHandler;
 
     if (eventPtr->type == ConfigureNotify) {
@@ -891,7 +891,7 @@ EmbedStructureProc(
          * Send a ConfigureNotify  to the embedded application.
          */
 
-        if (containerPtr->embeddedPtr != None) {
+        if (containerPtr->embeddedPtr != NULL) {
             TkDoConfigureNotify(containerPtr->embeddedPtr);
         }
 	if (containerPtr->embedded != None) {
@@ -936,7 +936,7 @@ EmbedActivateProc(
     ClientData clientData,	/* Token for container window. */
     XEvent *eventPtr)		/* ResizeRequest event. */
 {
-    Container *containerPtr = clientData;
+    Container *containerPtr = (Container *)clientData;
 
     if (containerPtr->embeddedPtr != NULL) {
 	if (eventPtr->type == ActivateNotify) {
@@ -971,7 +971,7 @@ EmbedFocusProc(
     ClientData clientData,	/* Token for container window. */
     XEvent *eventPtr)		/* ResizeRequest event. */
 {
-    Container *containerPtr = clientData;
+    Container *containerPtr = (Container *)clientData;
     Display *display;
     XEvent event;
 
diff --git a/macosx/tkMacOSXFont.c b/macosx/tkMacOSXFont.c
index ca370f3..2a28f73 100644
--- a/macosx/tkMacOSXFont.c
+++ b/macosx/tkMacOSXFont.c
@@ -112,7 +112,7 @@ static int		CreateNamedSystemFont(Tcl_Interp *interp,
     self = [self init];
     if (self) {
 	Tcl_DStringInit(&_ds);
-	Tcl_UtfToUniCharDString(bytes, len, &_ds);
+	Tcl_UtfToUniCharDString((const char *)bytes, len, &_ds);
 	_string = [[NSString alloc]
 	     initWithCharactersNoCopy:(unichar *)Tcl_DStringValue(&_ds)
 			       length:Tcl_DStringLength(&_ds)>>1
diff --git a/macosx/tkMacOSXImage.c b/macosx/tkMacOSXImage.c
index 74c0115..69967af 100644
--- a/macosx/tkMacOSXImage.c
+++ b/macosx/tkMacOSXImage.c
@@ -82,7 +82,7 @@ TkMacOSXCreateCGImageWithXImage(
 		*destPtr++ = xBitReverseTable[(unsigned char)(*(srcPtr++))];
 	    }
 	} else {
-	    data = memcpy(ckalloc(len), image->data + image->xoffset, len);
+	    data = (char *)memcpy(ckalloc(len), image->data + image->xoffset, len);
 	}
 	if (data) {
 	    provider = CGDataProviderCreateWithData(data, data, len,
@@ -112,7 +112,7 @@ TkMacOSXCreateCGImageWithXImage(
 	bitmapInfo = (image->byte_order == MSBFirst ?
 		kCGBitmapByteOrder32Little : kCGBitmapByteOrder32Big);
 	bitmapInfo |= kCGImageAlphaLast;
-	data = memcpy(ckalloc(len), image->data + image->xoffset, len);
+	data = (char *)memcpy(ckalloc(len), image->data + image->xoffset, len);
 	if (data) {
 	    provider = CGDataProviderCreateWithData(data, data, len,
 		    releaseData);
@@ -332,7 +332,7 @@ XCreateImage(
     XImage *ximage;
 
     display->request++;
-    ximage = ckalloc(sizeof(XImage));
+    ximage = (XImage *)ckalloc(sizeof(XImage));
 
     ximage->height = height;
     ximage->width = width;
@@ -645,7 +645,7 @@ XGetImage(
     NSBitmapImageRep* bitmapRep = nil;
     NSUInteger bitmap_fmt = 0;
     XImage* imagePtr = NULL;
-    char* bitmap = NULL;
+    char *bitmap = NULL;
     char R, G, B, A;
     int depth = 32, offset = 0, bitmap_pad = 0;
     unsigned int bytes_per_row, size, row, n, m;
@@ -668,7 +668,7 @@ XGetImage(
 	bitmap_fmt = [bitmapRep bitmapFormat];
 	size = [bitmapRep bytesPerPlane];
 	bytes_per_row = [bitmapRep bytesPerRow];
-	bitmap = ckalloc(size);
+	bitmap = (char *)ckalloc(size);
 	if (!bitmap
 		|| (bitmap_fmt != 0 && bitmap_fmt != 1)
 		|| [bitmapRep samplesPerPixel] != 4
diff --git a/macosx/tkMacOSXKeyEvent.c b/macosx/tkMacOSXKeyEvent.c
index 1dc3982..8d93cd4 100644
--- a/macosx/tkMacOSXKeyEvent.c
+++ b/macosx/tkMacOSXKeyEvent.c
@@ -53,7 +53,7 @@ static NSUInteger textInputModifiers;
     TkWindow *winPtr = TkMacOSXGetTkWindow(w), *grabWinPtr, *focusWinPtr;
     Tk_Window tkwin = (Tk_Window)winPtr;
     NSEventType type = [theEvent type];
-    NSUInteger virtual = [theEvent keyCode];
+    NSUInteger virt = [theEvent keyCode];
     NSUInteger modifiers = ([theEvent modifierFlags] &
 			    NSDeviceIndependentModifierFlagsMask);
     XEvent xEvent;
@@ -126,7 +126,7 @@ static NSUInteger textInputModifiers;
 	TKLog(@"-[%@(%p) %s] repeat=%d mods=%x char=%x code=%lu c=%d type=%d",
 	      [self class], self, _cmd,
 	      (type == NSKeyDown) && [theEvent isARepeat], modifiers, keychar,
-	      virtual, w, type);
+	      virt, w, type);
 #endif
 
     }
@@ -215,7 +215,7 @@ static NSUInteger textInputModifiers;
 
     macKC.v.o_s =  ((modifiers & NSShiftKeyMask ? INDEX_SHIFT : 0) |
 		    (modifiers & NSAlternateKeyMask ? INDEX_OPTION : 0));
-    macKC.v.virtual = virtual;
+    macKC.v.virt = virt;
     switch (type) {
     case NSFlagsChanged:
 
@@ -349,9 +349,9 @@ static NSUInteger textInputModifiers;
 	    UniChar lowChar = [str characterAtIndex:++i];
 	    macKC.v.keychar = CFStringGetLongCharacterForSurrogatePair(
 				  (UniChar)keychar, lowChar);
-	    macKC.v.virtual = NON_BMP_VIRTUAL;
+	    macKC.v.virt = NON_BMP_VIRTUAL;
 	} else if (repRange.location == 0 || sendingIMEText) {
-	    macKC.v.virtual = REPLACEMENT_VIRTUAL;
+	    macKC.v.virt = REPLACEMENT_VIRTUAL;
 	} else {
 	    macKC.uint = TkMacOSXAddVirtual(macKC.uint);
 	    xEvent.xkey.state |= INDEX2STATE(macKC.x.xvirtual);
diff --git a/macosx/tkMacOSXKeyboard.c b/macosx/tkMacOSXKeyboard.c
index b9bf3be..9aca9e1 100644
--- a/macosx/tkMacOSXKeyboard.c
+++ b/macosx/tkMacOSXKeyboard.c
@@ -143,7 +143,7 @@ static BOOL keyboardChanged = YES;
 static void	InitHashTables(void);
 static void     UpdateKeymaps(void);
 static int	KeyDataToUnicode(UniChar *uniChars, int maxChars,
-			UInt16 keyaction, UInt32 virtual, UInt32 modifiers,
+			UInt16 keyaction, UInt32 virt, UInt32 modifiers,
 			UInt32 * deadKeyStatePtr);
 
 #pragma mark TKApplication(TKKeyboard)
@@ -190,15 +190,15 @@ InitHashTables(void)
 
     Tcl_InitHashTable(&special2keysym, TCL_ONE_WORD_KEYS);
     Tcl_InitHashTable(&keysym2keycode, TCL_ONE_WORD_KEYS);
-    for (kPtr = keyArray; kPtr->virtual != 0; kPtr++) {
+    for (kPtr = keyArray; kPtr->virt != 0; kPtr++) {
 	MacKeycode macKC;
 	macKC.v.o_s = 0;
-	hPtr = Tcl_CreateHashEntry(&special2keysym, INT2PTR(kPtr->virtual),
+	hPtr = Tcl_CreateHashEntry(&special2keysym, INT2PTR(kPtr->virt),
 				   &dummy);
 	Tcl_SetHashValue(hPtr, INT2PTR(kPtr->keysym));
 	hPtr = Tcl_CreateHashEntry(&keysym2keycode, INT2PTR(kPtr->keysym),
 				   &dummy);
-	macKC.v.virtual = kPtr->virtual;
+	macKC.v.virt = kPtr->virt;
 	macKC.v.keychar = kPtr->keychar;
 	Tcl_SetHashValue(hPtr, INT2PTR(macKC.uint));
 
@@ -254,7 +254,7 @@ UpdateKeymaps()
 {
     static Bool keymapInitialized = false;
     Tcl_HashEntry *hPtr;
-    int virtual, index, dummy;
+    int virt, index, dummy;
 
     if (!keymapInitialized) {
 	Tcl_InitHashTable(&unichar2xvirtual, TCL_ONE_WORD_KEYS);
@@ -270,12 +270,12 @@ UpdateKeymaps()
      */
 
     for (index = 3; index >= 0; index--) {
-        for (virtual = 0; virtual < 128; virtual++) {
+        for (virt = 0; virt < 128; virt++) {
 	    MacKeycode macKC;
-	    macKC.v = (keycode_v) {.virtual = virtual, .o_s = index, .keychar = 0};
+	    macKC.v = (keycode_v) {.virt = virt, .o_s = index, .keychar = 0};
 	    int modifiers = INDEX2CARBON(index), result;
 	    UniChar keychar = 0;
-	    result = KeyDataToUnicode(&keychar, 1, kUCKeyActionDown, virtual,
+	    result = KeyDataToUnicode(&keychar, 1, kUCKeyActionDown, virt,
 				      modifiers, NULL);
 	    if (keychar == 0x10) {
 
@@ -286,7 +286,7 @@ UpdateKeymaps()
 		continue;
 	    }
 	    macKC.v.keychar = keychar;
-	    if (! ON_KEYPAD(virtual)) {
+	    if (! ON_KEYPAD(virt)) {
 		hPtr = Tcl_CreateHashEntry(&unichar2xvirtual,
 					   INT2PTR(macKC.x.keychar), &dummy);
 		Tcl_SetHashValue(hPtr, INT2PTR(macKC.x.xvirtual));
@@ -328,7 +328,7 @@ KeyDataToUnicode(
     UniChar *uniChars,
     int maxChars,
     UInt16 keyaction,
-    UInt32 virtual,
+    UInt32 virt,
     UInt32 modifiers,
     UInt32 *deadKeyStatePtr)
 {
@@ -357,14 +357,14 @@ KeyDataToUnicode(
 	UInt32 dummyState;
 	OSStatus err;
 
-	virtual &= 0xFF;
+	virt &= 0xFF;
 	modifiers = (modifiers >> 8) & 0xFF;
 	if (!deadKeyStatePtr) {
 	    options = kUCKeyTranslateNoDeadKeysMask;
 	    dummyState = 0;
 	    deadKeyStatePtr = &dummyState;
 	}
-	err = ChkErr(UCKeyTranslate, layoutData, virtual, keyaction, modifiers,
+	err = ChkErr(UCKeyTranslate, (const UCKeyboardLayout *)layoutData, virt, keyaction, modifiers,
 		keyboardType, options, deadKeyStatePtr, maxChars,
 		&actuallength, uniChars);
 	if (!actuallength && *deadKeyStatePtr) {
@@ -426,7 +426,7 @@ XkbKeycodeToKeysym(
      * an Fn function key or Tab, Backspace, Home, End, etc.
      */
 
-    hPtr = Tcl_FindHashEntry(&special2keysym, INT2PTR(macKC.v.virtual));
+    hPtr = Tcl_FindHashEntry(&special2keysym, INT2PTR(macKC.v.virt));
     if (hPtr != NULL) {
 	return (KeySym) Tcl_GetHashValue(hPtr);
     }
@@ -437,7 +437,7 @@ XkbKeycodeToKeysym(
      * keysym.
      */
 
-    if (macKC.v.virtual > 127) {
+    if (macKC.v.virt > 127) {
 	hPtr = Tcl_FindHashEntry(&unichar2keysym, INT2PTR(macKC.v.keychar));
 	if (hPtr != NULL) {
 	    return (KeySym) Tcl_GetHashValue(hPtr);
@@ -452,7 +452,7 @@ XkbKeycodeToKeysym(
      */
 
     modifiers = INDEX2CARBON(macKC.v.o_s);
-    result = KeyDataToUnicode(&keychar, 1, kUCKeyActionDown, macKC.v.virtual,
+    result = KeyDataToUnicode(&keychar, 1, kUCKeyActionDown, macKC.v.virt,
 			      modifiers, NULL);
     if (result) {
 	hPtr = Tcl_FindHashEntry(&unichar2keysym, INT2PTR(keychar));
@@ -639,7 +639,7 @@ XKeysymToKeycode(
 
     hPtr = Tcl_FindHashEntry(&keysym2keycode, INT2PTR(keysym));
     if (hPtr != NULL) {
-	return (KeyCode) Tcl_GetHashValue(hPtr);
+	return (KeyCode) PTR2INT(Tcl_GetHashValue(hPtr));
     }
 
     /*
@@ -647,7 +647,7 @@ XKeysymToKeycode(
      * else.
      */
 
-    macKC.v.virtual = NO_VIRTUAL;
+    macKC.v.virt = NO_VIRTUAL;
     macKC.v.o_s = 0;
     macKC.v.keychar = 0;
 
@@ -721,7 +721,7 @@ TkpSetKeycodeAndState(
 	if (macKC.v.keychar < 0xF700) {
 	    UniChar keychar = macKC.v.keychar;
 	    NSString *str, *lower, *upper;
-	    if (macKC.v.virtual != NO_VIRTUAL) {
+	    if (macKC.v.virt != NO_VIRTUAL) {
 		macKC.x.keychar = xvirtual2unichar[macKC.x.xvirtual];
 	    } else {
 		str = [[NSString alloc] initWithCharacters:&keychar length:1];
@@ -783,7 +783,7 @@ TkpGetKeySym(
      */
 
     if (macKC.v.keychar == MOD_KEYCHAR) {
-	switch (macKC.v.virtual) {
+	switch (macKC.v.virt) {
 	case 54:
 	    return XK_Meta_R;
 	case 55:
@@ -955,7 +955,7 @@ TkMacOSXAddVirtual(
 	unsigned long data = (unsigned long) Tcl_GetHashValue(hPtr);
 	macKC.x.xvirtual = (unsigned int) data;
     } else {
-	macKC.v.virtual = NO_VIRTUAL;
+	macKC.v.virt = NO_VIRTUAL;
     }
     return macKC.uint;
 }
diff --git a/macosx/tkMacOSXKeysyms.h b/macosx/tkMacOSXKeysyms.h
index da364ea..0b528f3 100644
--- a/macosx/tkMacOSXKeysyms.h
+++ b/macosx/tkMacOSXKeysyms.h
@@ -31,7 +31,7 @@
  */
 
 typedef struct {
-    int virtual;	/* value of [NSEvent keyCode] */
+    int virt;	/* value of [NSEvent keyCode] */
     KeySym keysym;	/* X11 keysym */
     KeyCode keychar;	/* XEvent keycode & 0xFFFF */
 } KeyInfo;
diff --git a/macosx/tkMacOSXMenu.c b/macosx/tkMacOSXMenu.c
index 8c7ef52..1af18c4 100644
--- a/macosx/tkMacOSXMenu.c
+++ b/macosx/tkMacOSXMenu.c
@@ -236,7 +236,7 @@ TKBackgroundLoop *backgroundLoop = nil;
 
 - (TkMenu *) tkMenu
 {
-    return _tkMenu;
+    return (TkMenu *)_tkMenu;
 }
 
 - (int) tkIndexOfItem: (NSMenuItem *) menuItem
@@ -413,7 +413,7 @@ TKBackgroundLoop *backgroundLoop = nil;
     (void)menu;
 
     if (_tkMenu) {
-	RecursivelyClearActiveMenu(_tkMenu);
+	RecursivelyClearActiveMenu((TkMenu *)_tkMenu);
     }
 }
 
@@ -437,7 +437,7 @@ TKBackgroundLoop *backgroundLoop = nil;
 	Tcl_Preserve(interp);
 	Tcl_Preserve(menuPtr);
 
-	int result = TkPostCommand(_tkMenu);
+	int result = TkPostCommand(menuPtr);
 
 	if (result!=TCL_OK && result!=TCL_CONTINUE && result!=TCL_BREAK) {
 	      Tcl_AddErrorInfo(interp, "\n    (menu preprocess)");
@@ -695,7 +695,7 @@ TkpConfigureMenuEntry(
     	Tk_SizeOfImage(mePtr->image, &imageWidth, &imageHeight);
 	image = TkMacOSXGetNSImageFromTkImage(mePtr->menuPtr->display,
 		mePtr->image, imageWidth, imageHeight);
-    } else if (mePtr->bitmapPtr != None) {
+    } else if (mePtr->bitmapPtr != NULL) {
 	Pixmap bitmap = Tk_GetBitmapFromObj(mePtr->menuPtr->tkwin,
 		mePtr->bitmapPtr);
 
diff --git a/macosx/tkMacOSXMenubutton.c b/macosx/tkMacOSXMenubutton.c
index 2fad3cb..6291596 100644
--- a/macosx/tkMacOSXMenubutton.c
+++ b/macosx/tkMacOSXMenubutton.c
@@ -165,8 +165,8 @@ void
 TkpDisplayMenuButton(
     ClientData clientData)	/* Information about widget. */
 {
-    MacMenuButton *mbPtr = clientData;
-    TkMenuButton *butPtr = clientData;
+    MacMenuButton *mbPtr = (MacMenuButton *)clientData;
+    TkMenuButton *butPtr = (TkMenuButton *)clientData;
     Tk_Window tkwin = butPtr->tkwin;
     Pixmap pixmap;
     DrawParams *dpPtr = &mbPtr->drawParams;
@@ -240,8 +240,8 @@ TkpDestroyMenuButton(
  */
 
 void
-TkpComputeMenuButtonGeometry(butPtr)
-    TkMenuButton *butPtr;	/* Widget record for menu button. */
+TkpComputeMenuButtonGeometry(
+    TkMenuButton *butPtr)	/* Widget record for menu button. */
 {
     int width, height, avgWidth, haveImage = 0, haveText = 0;
     int txtWidth, txtHeight;
@@ -689,8 +689,8 @@ MenuButtonEventProc(
     ClientData clientData,	/* Information about window. */
     XEvent *eventPtr)		/* Information about event. */
 {
-    TkMenuButton *buttonPtr = clientData;
-    MacMenuButton *mbPtr = clientData;
+    TkMenuButton *buttonPtr = (TkMenuButton *)clientData;
+    MacMenuButton *mbPtr = (MacMenuButton *)clientData;
 
     if (eventPtr->type == ActivateNotify
 	    || eventPtr->type == DeactivateNotify) {
diff --git a/macosx/tkMacOSXNotify.c b/macosx/tkMacOSXNotify.c
index 6834354..f32fa76 100644
--- a/macosx/tkMacOSXNotify.c
+++ b/macosx/tkMacOSXNotify.c
@@ -50,7 +50,7 @@ typedef struct ThreadSpecificData {
 } ThreadSpecificData;
 static Tcl_ThreadDataKey dataKey;
 
-#define TSD_INIT() ThreadSpecificData *tsdPtr = \
+#define TSD_INIT() ThreadSpecificData *tsdPtr = (ThreadSpecificData *) \
 	Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData))
 
 static void TkMacOSXNotifyExitHandler(ClientData clientData);
diff --git a/macosx/tkMacOSXPrivate.h b/macosx/tkMacOSXPrivate.h
index ea53e5f..ed24255 100644
--- a/macosx/tkMacOSXPrivate.h
+++ b/macosx/tkMacOSXPrivate.h
@@ -135,7 +135,7 @@
 typedef struct keycode_v_t {
     unsigned keychar: 22;    /* UCS-32 character */
     unsigned o_s: 2;         /* State of Option and Shift keys. */
-    unsigned virtual: 8;     /* 8-bit virtual keycode - identifies a key. */
+    unsigned virt: 8;     /* 8-bit virtual keycode - identifies a key. */
 } keycode_v;
 
 typedef struct keycode_x_t {
@@ -157,7 +157,7 @@ typedef union MacKeycode_t {
  * Note that 0x7f is del and 0xF8FF is the Apple Logo character.
  */
 
-#define ON_KEYPAD(virtual) ((virtual >= 0x41) && (virtual <= 0x5C))
+#define ON_KEYPAD(virt) ((virt >= 0x41) && (virt <= 0x5C))
 #define IS_PRINTABLE(keychar) ((keychar >= 0x20) && (keychar != 0x7f) && \
                                ((keychar < 0xF700) || keychar >= 0xF8FF))
 
diff --git a/macosx/tkMacOSXScrlbr.c b/macosx/tkMacOSXScrlbr.c
index 2d9a038..b6e3298 100644
--- a/macosx/tkMacOSXScrlbr.c
+++ b/macosx/tkMacOSXScrlbr.c
@@ -246,7 +246,7 @@ void
 TkpDisplayScrollbar(
     ClientData clientData)	/* Information about window. */
 {
-    TkScrollbar *scrollPtr = clientData;
+    TkScrollbar *scrollPtr = (TkScrollbar *)clientData;
     MacScrollbar *msPtr = (MacScrollbar *) scrollPtr;
     Tk_Window tkwin = scrollPtr->tkwin;
     TkWindow *winPtr = (TkWindow *) tkwin;
@@ -456,10 +456,10 @@ TkpDestroyScrollbar(
 {
     MacScrollbar *macScrollPtr = (MacScrollbar *) scrollPtr;
 
-    if (macScrollPtr->troughGC != None) {
+    if (macScrollPtr->troughGC != NULL) {
 	Tk_FreeGC(scrollPtr->display, macScrollPtr->troughGC);
     }
-    if (macScrollPtr->copyGC != None) {
+    if (macScrollPtr->copyGC != NULL) {
 	Tk_FreeGC(scrollPtr->display, macScrollPtr->copyGC);
     }
 }
@@ -769,7 +769,7 @@ ScrollbarEventProc(
     ClientData clientData,	/* Information about window. */
     XEvent *eventPtr)		/* Information about event. */
 {
-    TkScrollbar *scrollPtr = clientData;
+    TkScrollbar *scrollPtr = (TkScrollbar *)clientData;
 
     switch (eventPtr->type) {
     case UnmapNotify:
@@ -783,10 +783,10 @@ ScrollbarEventProc(
     case ButtonRelease:
     case EnterNotify:
     case LeaveNotify:
-    	ScrollbarEvent(clientData, eventPtr);
+    	ScrollbarEvent(scrollPtr, eventPtr);
 	break;
     default:
-	TkScrollbarEventProc(clientData, eventPtr);
+	TkScrollbarEventProc(scrollPtr, eventPtr);
     }
 }
 
diff --git a/macosx/tkMacOSXSubwindows.c b/macosx/tkMacOSXSubwindows.c
index 280c041..6cd1fe5 100644
--- a/macosx/tkMacOSXSubwindows.c
+++ b/macosx/tkMacOSXSubwindows.c
@@ -982,7 +982,7 @@ InvalViewRect(
     void *ref)
 {
     static CGAffineTransform t;
-    TKContentView *view = ref;
+    TKContentView *view = (TKContentView *)ref;
     NSRect dirtyRect;
 
     if (!view) {
@@ -1467,7 +1467,7 @@ Tk_FreePixmap(
 
     display->request++;
     if (macPix->context) {
-	char *data = CGBitmapContextGetData(macPix->context);
+	char *data = (char *)CGBitmapContextGetData(macPix->context);
 
 	if (data) {
 	    ckfree(data);
diff --git a/macosx/tkMacOSXTest.c b/macosx/tkMacOSXTest.c
index 7981f7e..5d7e626 100644
--- a/macosx/tkMacOSXTest.c
+++ b/macosx/tkMacOSXTest.c
@@ -376,7 +376,7 @@ InjectKeyEventObjCmd(
 	characters:chars
 	charactersIgnoringModifiers:unmod
 	isARepeat:NO
-	keyCode:macKC.v.virtual];
+	keyCode:macKC.v.virt];
     [NSApp postEvent:keyEvent atStart:NO];
     return TCL_OK;
 }
diff --git a/macosx/tkMacOSXWm.c b/macosx/tkMacOSXWm.c
index 045d8d2..3c23308 100644
--- a/macosx/tkMacOSXWm.c
+++ b/macosx/tkMacOSXWm.c
@@ -1482,7 +1482,7 @@ WmSetAttribute(
 	}
 	break;
     case WMATT_TITLEPATH: {
-	const char *path = Tcl_FSGetNativePath(value);
+	const char *path = (const char *)Tcl_FSGetNativePath(value);
 	NSString *filename = @"";
 
 	if (path && *path) {
@@ -1636,7 +1636,7 @@ WmAttributesCmd(
 	    Tcl_ListObjAppendElement(NULL, result,
 		    Tcl_NewStringObj(WmAttributeNames[attribute], -1));
 	    Tcl_ListObjAppendElement(NULL, result,
-		    WmGetAttribute(winPtr, macWindow, attribute));
+		    WmGetAttribute(winPtr, macWindow, (WmAttribute)attribute));
 	}
 	Tcl_SetObjResult(interp, result);
     } else if (objc == 4) {	/* wm attributes $win -attribute */
@@ -1644,7 +1644,7 @@ WmAttributesCmd(
 		sizeof(char *), "attribute", 0, &attribute) != TCL_OK) {
 	    return TCL_ERROR;
 	}
-	Tcl_SetObjResult(interp, WmGetAttribute(winPtr, macWindow, attribute));
+	Tcl_SetObjResult(interp, WmGetAttribute(winPtr, macWindow, (WmAttribute)attribute));
     } else if ((objc - 3) % 2 == 0) {	/* wm attributes $win -att value... */
 	int i;
 
@@ -1653,7 +1653,7 @@ WmAttributesCmd(
 		    sizeof(char *), "attribute", 0, &attribute) != TCL_OK) {
 		return TCL_ERROR;
 	    }
-	    if (WmSetAttribute(winPtr, macWindow, interp, attribute, objv[i+1])
+	    if (WmSetAttribute(winPtr, macWindow, interp, (WmAttribute)attribute, objv[i+1])
 		    != TCL_OK) {
 		return TCL_ERROR;
 	    }
@@ -4128,7 +4128,7 @@ TopLevelEventProc(
     ClientData clientData,	/* Window for which event occurred. */
     XEvent *eventPtr)		/* Event that just happened. */
 {
-    TkWindow *winPtr = clientData;
+    TkWindow *winPtr = (TkWindow *)clientData;
 
     winPtr->wmInfoPtr->flags |= WM_VROOT_OFFSET_STALE;
     if (eventPtr->type == DestroyNotify) {
@@ -4214,7 +4214,7 @@ static void
 UpdateGeometryInfo(
     ClientData clientData)	/* Pointer to the window's record. */
 {
-    TkWindow *winPtr = clientData;
+    TkWindow *winPtr = (TkWindow *)clientData;
     WmInfo *wmPtr = winPtr->wmInfoPtr;
     int x, y, width, height, min, max;
 
@@ -5593,8 +5593,8 @@ TkMacOSXZoomToplevel(
     void *whichWindow,		/* The Macintosh window to zoom. */
     short zoomPart)		/* Either inZoomIn or inZoomOut */
 {
-    NSWindow *window = whichWindow;
-    TkWindow *winPtr = TkMacOSXGetTkWindow(window);
+    NSWindow *window = (NSWindow *)whichWindow;
+    TkWindow *winPtr = (TkWindow *)TkMacOSXGetTkWindow(window);
     WmInfo *wmPtr;
 
     if (!winPtr || !winPtr->wmInfoPtr) {
@@ -5651,7 +5651,7 @@ TkUnsupported1ObjCmd(
     enum SubCmds {
 	TKMWS_STYLE, TKMWS_TABID, TKMWS_APPEARANCE, TKMWS_ISDARK
     };
-    Tk_Window tkwin = clientData;
+    Tk_Window tkwin = (Tk_Window)clientData;
     TkWindow *winPtr;
     int index;
 
@@ -6717,7 +6717,7 @@ TkWmStackorderToplevel(
 	for (NSWindow *w in backToFront) {
 	    hPtr = Tcl_FindHashEntry(&table, (char*) w);
 	    if (hPtr != NULL) {
-		childWinPtr = Tcl_GetHashValue(hPtr);
+		childWinPtr = (TkWindow *)Tcl_GetHashValue(hPtr);
 		*windowPtr++ = childWinPtr;
 	    }
 	}
@@ -7042,7 +7042,7 @@ ApplyContainerOverrideChanges(
 	    [macWindow setExcludedFromWindowsMenu:NO];
 	    wmPtr->flags &= ~WM_TOPMOST;
 	}
-	if (wmPtr->container != None) {
+	if (wmPtr->container != NULL) {
 	    TkWindow *containerWinPtr = (TkWindow *)wmPtr->container;
 
 	    if (containerWinPtr && (containerWinPtr->window != None)
diff --git a/macosx/ttkMacOSXTheme.c b/macosx/ttkMacOSXTheme.c
index 1d65b3c..92c5156 100644
--- a/macosx/ttkMacOSXTheme.c
+++ b/macosx/ttkMacOSXTheme.c
@@ -1379,7 +1379,7 @@ static void ButtonElementSize(
     int *minHeight,
     Ttk_Padding *paddingPtr)
 {
-    ThemeButtonParams *params = clientData;
+    ThemeButtonParams *params = (ThemeButtonParams *)clientData;
     const HIThemeButtonDrawInfo info =
 	computeButtonDrawInfo(params, 0, tkwin);
     static const CGRect scratchBounds = {{0, 0}, {100, 100}};
@@ -1425,7 +1425,7 @@ static void ButtonElementDraw(
     Ttk_Box b,
     Ttk_State state)
 {
-    ThemeButtonParams *params = clientData;
+    ThemeButtonParams *params = (ThemeButtonParams *)clientData;
     CGRect bounds = BoxToRect(d, b);
     HIThemeButtonDrawInfo info = computeButtonDrawInfo(params, state, tkwin);
 
@@ -1769,7 +1769,7 @@ static void EntryElementDraw(
     Ttk_Box b,
     Ttk_State state)
 {
-    EntryElement *e = elementRecord;
+    EntryElement *e = (EntryElement *)elementRecord;
     Ttk_Box inner = Ttk_PadBox(b, Ttk_UniformPadding(3));
     CGRect bounds = BoxToRect(d, inner);
     NSColor *background;
@@ -2142,8 +2142,8 @@ static void TrackElementDraw(
     Ttk_Box b,
     Ttk_State state)
 {
-    TrackElementData *data = clientData;
-    TrackElement *elem = elementRecord;
+    TrackElementData *data = (TrackElementData *)clientData;
+    TrackElement *elem = (TrackElement *)elementRecord;
     int orientation = TTK_ORIENT_HORIZONTAL;
     double from = 0, to = 100, value = 0, factor;
     CGRect bounds;
@@ -2288,7 +2288,7 @@ static void PbarElementDraw(
     Ttk_Box b,
     Ttk_State state)
 {
-    PbarElement *pbar = elementRecord;
+    PbarElement *pbar = (PbarElement *)elementRecord;
     int orientation = TTK_ORIENT_HORIZONTAL, phase = 0, kind;
 
     /*
@@ -2387,7 +2387,7 @@ static void TroughElementSize(
     int *minHeight,
     Ttk_Padding *paddingPtr)
 {
-    ScrollbarElement *scrollbar = elementRecord;
+    ScrollbarElement *scrollbar = (ScrollbarElement *)elementRecord;
     int orientation = TTK_ORIENT_HORIZONTAL;
     SInt32 thickness = 15;
 
@@ -2428,7 +2428,7 @@ static void TroughElementDraw(
     Ttk_Box b,
     TCL_UNUSED(Ttk_State))
 {
-    ScrollbarElement *scrollbar = elementRecord;
+    ScrollbarElement *scrollbar = (ScrollbarElement *)elementRecord;
     int orientation = TTK_ORIENT_HORIZONTAL;
     CGRect bounds = BoxToRect(d, b);
     NSColorSpace *deviceRGB = [NSColorSpace deviceRGBColorSpace];
@@ -2470,7 +2470,7 @@ static void ThumbElementSize(
     int *minHeight,
     TCL_UNUSED(Ttk_Padding *))
 {
-    ScrollbarElement *scrollbar = elementRecord;
+    ScrollbarElement *scrollbar = (ScrollbarElement *)elementRecord;
     int orientation = TTK_ORIENT_HORIZONTAL;
 
     Ttk_GetOrientFromObj(NULL, scrollbar->orientObj, &orientation);
@@ -2491,7 +2491,7 @@ static void ThumbElementDraw(
     Ttk_Box b,
     Ttk_State state)
 {
-    ScrollbarElement *scrollbar = elementRecord;
+    ScrollbarElement *scrollbar = (ScrollbarElement *)elementRecord;
     int orientation = TTK_ORIENT_HORIZONTAL;
 
     Ttk_GetOrientFromObj(NULL, scrollbar->orientObj, &orientation);
@@ -2906,7 +2906,7 @@ static void FieldElementDraw(
     Ttk_Box b,
     TCL_UNUSED(Ttk_State))
 {
-    FieldElement *e = elementRecord;
+    FieldElement *e = (FieldElement *)elementRecord;
     Tk_3DBorder backgroundPtr =
 	Tk_Get3DBorderFromObj(tkwin, e->backgroundObj);
 
@@ -2998,7 +2998,7 @@ static void TreeHeaderElementDraw(
     Ttk_Box b,
     Ttk_State state)
 {
-    ThemeButtonParams *params = clientData;
+    ThemeButtonParams *params = (ThemeButtonParams *)clientData;
     CGRect bounds = BoxToRect(d, b);
     const HIThemeButtonDrawInfo info = {
 	.version = 0,