diff --git a/src/cocoa/NSTabView.nim b/src/cocoa/NSTabView.nim
index ec7ca19..1905984 100644
--- a/src/cocoa/NSTabView.nim
+++ b/src/cocoa/NSTabView.nim
@@ -4,4 +4,5 @@ import NSFunctions
 
 proc newTabBox*(parent: ID, label: cstring; left: cint; top: cint; width: cint; height: cint): ID  {.cdecl, importc: "createTabView".}
 
-proc addTab*(parent: ID, label: cstring) {.cdecl, importc: "addTab".}
\ No newline at end of file
+proc addTab*(parent: ID, label: cstring) {.cdecl, importc: "addTab".}
+proc getTab*(parent: ID, label: cstring): ID {.cdecl, importc: "getTab".}
\ No newline at end of file
diff --git a/src/cocoa/widgets/button.m b/src/cocoa/widgets/button.m
index 6c4ee95..3392883 100644
--- a/src/cocoa/widgets/button.m
+++ b/src/cocoa/widgets/button.m
@@ -27,7 +27,8 @@ id createButton(id parent, const char* caption, int l, int t, int w, int h, ACTI
     	[widget setButtonAction:func];
     	[widget setAction: @selector(click:)];
     }
-    [[parent contentView] addSubview:widget];
+    addToParent(parent, widget);
+    
     return widget;
 }
 
diff --git a/src/cocoa/widgets/checkbox.m b/src/cocoa/widgets/checkbox.m
index 6a97a3b..62991fa 100644
--- a/src/cocoa/widgets/checkbox.m
+++ b/src/cocoa/widgets/checkbox.m
@@ -12,7 +12,8 @@ id createCheckBox(id parent, const char* caption, int l, int t, int w, int h){
     [self setTitle: [NSString stringWithUTF8String:caption]];
     [self setTarget: self];
 
-    [[parent contentView] addSubview:self];
+    addToParent(parent, self);
+    
     return self;
 }
 
diff --git a/src/cocoa/widgets/col.h b/src/cocoa/widgets/col.h
index 2b017b0..589bb0a 100644
--- a/src/cocoa/widgets/col.h
+++ b/src/cocoa/widgets/col.h
@@ -580,6 +580,7 @@
 
     id createSlider(id parent, int left, int top, int width, int height, ACTION callback);
 
+    void addToParent(id parent, id child);
 #ifdef __cplusplus
 	}
 #endif
diff --git a/src/cocoa/widgets/combobox.m b/src/cocoa/widgets/combobox.m
index c4ea334..fe81f48 100644
--- a/src/cocoa/widgets/combobox.m
+++ b/src/cocoa/widgets/combobox.m
@@ -37,7 +37,8 @@ id createComboBox(id parent,int l, int t, int w, int h, ACTION callback){
         // [widget setAction: @selector(click:)];
     }
 
-    [[parent contentView] addSubview:widget];
+    addToParent(parent, widget);
+    
     return widget;
 }
 
diff --git a/src/cocoa/widgets/container.m b/src/cocoa/widgets/container.m
index a53c9bb..47ec76a 100644
--- a/src/cocoa/widgets/container.m
+++ b/src/cocoa/widgets/container.m
@@ -12,6 +12,6 @@ id createBox(id parent, const char* title, int x, int y, int width, int height)
     [sv setBackgroundColor: [NSColor windowBackgroundColor]];
     [widget setContentView: sv];
     [widget setBorderType: NSLineBorder];
-    [[parent contentView] addSubview:widget];
+    addToParent(parent, widget);
     return widget;
 }
\ No newline at end of file
diff --git a/src/cocoa/widgets/functions.m b/src/cocoa/widgets/functions.m
index 9974253..a6d4223 100644
--- a/src/cocoa/widgets/functions.m
+++ b/src/cocoa/widgets/functions.m
@@ -156,3 +156,12 @@ void Notify(const char *title, const char * subtitle, const char *text) {
 
 }
 
+void addToParent(id parent, id child) {
+	NSString *widgetClass = [[parent class] description];
+    if ([widgetClass isEqualToString:@"NSTabViewItem"]) {
+        [[parent view] addSubview: child];
+    } else {
+        [[parent contentView] addSubview: child];
+    }
+}
+
diff --git a/src/cocoa/widgets/label.m b/src/cocoa/widgets/label.m
index 4ef41f7..4bceefc 100644
--- a/src/cocoa/widgets/label.m
+++ b/src/cocoa/widgets/label.m
@@ -9,6 +9,6 @@ id createLabel(id parent, const char* txt, int l, int t, int w, int h){
 	[widget setAlignment: NSTextAlignmentLeft];
 	[widget setDrawsBackground: NO];
 	[widget setBordered: NO];
-    [[parent contentView] addSubview:widget];
+    addToParent(parent, widget);
     return widget;
 }
diff --git a/src/cocoa/widgets/line.m b/src/cocoa/widgets/line.m
index 3f94f09..a32d381 100644
--- a/src/cocoa/widgets/line.m
+++ b/src/cocoa/widgets/line.m
@@ -5,7 +5,7 @@
 id createLine(id parent, int x, int y, int width) {
 	NSBox *widget = [[[NSBox alloc] initWithFrame:NSMakeRect(x,y,width,1)] autorelease];
 	widget.boxType = NSBoxSeparator;
-	[[parent contentView] addSubview:widget];
+	addToParent(parent, widget);
 	return widget;
 }
 
diff --git a/src/cocoa/widgets/listbox.m b/src/cocoa/widgets/listbox.m
index a914db4..6921b05 100644
--- a/src/cocoa/widgets/listbox.m
+++ b/src/cocoa/widgets/listbox.m
@@ -80,6 +80,6 @@
 
 id createListBox(id parent,int l, int t, int w, int h){
     id self = [[[CocoaListBox alloc] initWithFrame:NSMakeRect( l, t, w, h )] autorelease];
-    [[parent contentView] addSubview:self];
+    addToParent(parent, self);
     return self;
 }
diff --git a/src/cocoa/widgets/radiobutton.m b/src/cocoa/widgets/radiobutton.m
index a7b5ced..3b3a879 100644
--- a/src/cocoa/widgets/radiobutton.m
+++ b/src/cocoa/widgets/radiobutton.m
@@ -23,6 +23,8 @@ id createRadioButton(id parent, const char* caption, int l, int t, int w, int h,
     	[self setButtonAction:func];
     	[self setAction: @selector(click:)];
     }
-    [[parent contentView] addSubview:self];
+
+    addToParent(parent, self);
+    
     return self;
 }
\ No newline at end of file
diff --git a/src/cocoa/widgets/slider.m b/src/cocoa/widgets/slider.m
index 945a86d..fd15fc3 100644
--- a/src/cocoa/widgets/slider.m
+++ b/src/cocoa/widgets/slider.m
@@ -33,6 +33,6 @@
 id createSlider(id parent, int left, int top, int width, int height, ACTION callback) {
     id widget = [[CocoaSlider alloc] initWithFrame:NSMakeRect(left, top, width, height) callBack:callback];
 
-    [[parent contentView] addSubview:widget];
+    addToParent(parent, self);
     return widget;
 }
diff --git a/src/cocoa/widgets/tabview.m b/src/cocoa/widgets/tabview.m
index 36740ef..22e570e 100644
--- a/src/cocoa/widgets/tabview.m
+++ b/src/cocoa/widgets/tabview.m
@@ -11,11 +11,16 @@ id createTabView(id parent, const char *label, int x, int y, int width, int heig
 
     
     for(NSString *x in items) {
+        id sv = [[[SaneView alloc] initWithFrame: NSZeroRect] autorelease];
+        [sv setBackgroundColor: [NSColor windowBackgroundColor]];
+    
+
         id *tabwidget = [[[NSTabViewItem alloc] initWithIdentifier: x ] autorelease];
         [tabwidget setLabel: x];
+        [tabwidget setView: sv];
         [widget addTabViewItem: tabwidget];
     }
-    
+
 	[[parent contentView] addSubview:widget];
 	return widget;
 }
@@ -29,4 +34,11 @@ void addTab(id parent, const char *name) {
         [widget setLabel: x];
         [parent addTabViewItem: widget];
     }
-}
\ No newline at end of file
+}
+
+id getTab(id parent, const char *name) {
+    NSString *str = [NSString stringWithUTF8String:name];
+    NSInteger index = [parent indexOfTabViewItemWithIdentifier: str];
+    // NSLog(@"%@", [[parent tabViewItemAtIndex: index] view]);
+    return [parent tabViewItemAtIndex: index];
+}
diff --git a/src/cocoa/widgets/textedit.m b/src/cocoa/widgets/textedit.m
index 314e2bc..1076452 100644
--- a/src/cocoa/widgets/textedit.m
+++ b/src/cocoa/widgets/textedit.m
@@ -104,7 +104,7 @@ id createTextEdit(id parent, const char* txt, int l, int t, int w, int h) {
         [[widget documentView]  setString:str];
     }
         
-    [[parent contentView] addSubview:widget];
+    addToParent(parent, widget);
     return widget;
 }
 
diff --git a/src/cocoa/widgets/textfield.m b/src/cocoa/widgets/textfield.m
index ef46902..f51a9c0 100644
--- a/src/cocoa/widgets/textfield.m
+++ b/src/cocoa/widgets/textfield.m
@@ -6,6 +6,6 @@ id createTextField(id parent, const char* txt, int l, int t, int w, int h){
     NSTextField *widget = [[[NSTextField alloc] initWithFrame:NSMakeRect( l, t, w, h )] autorelease];
     [widget setStringValue:[NSString stringWithUTF8String:txt]];
 //     [widget setAutoresizingMask: NSViewWidthSizable];
-    [[parent contentView] addSubview:widget];
+    addToParent(parent, widget);
     return widget;
 }