1 files changed, 21 insertions, 0 deletions
diff --git a/tools/designer/interfaces/designerinterface.h b/tools/designer/interfaces/designerinterface.h
index e0f5952b1..31b750e95 100644
--- a/tools/designer/interfaces/designerinterface.h
+++ b/tools/designer/interfaces/designerinterface.h
@@ -108,6 +108,9 @@ struct DesignerInterface : public TQUnknownInterface
 
 struct DesignerProject
 {
+    DesignerProject() {}
+    virtual ~DesignerProject() {}
+
     virtual TQPtrList<DesignerFormWindow> formList() const = 0;
     virtual TQStringList formNames() const = 0;
     virtual TQString formFileName( const TQString &form ) const = 0;
@@ -149,6 +152,9 @@ struct DesignerProject
 
 struct DesignerDatabase
 {
+    DesignerDatabase() {}
+    virtual ~DesignerDatabase() {}
+
     virtual TQString name() const = 0;
     virtual void setName( const TQString & ) = 0;
     virtual TQString driver() const = 0;
@@ -173,12 +179,18 @@ struct DesignerDatabase
 
 struct DesignerPixmapCollection
 {
+    DesignerPixmapCollection() {}
+    virtual ~DesignerPixmapCollection() {}
+
     virtual void addPixmap( const TQPixmap &p, const TQString &name, bool force ) = 0;
     virtual TQPixmap pixmap( const TQString &name ) const = 0;
 };
 
 struct DesignerFormWindow
 {
+    DesignerFormWindow() {}
+    virtual ~DesignerFormWindow() {}
+
     virtual TQString name() const = 0;
     virtual void setName( const TQString &n ) = 0;
     virtual TQString fileName() const = 0;
@@ -248,16 +260,25 @@ struct DesignerFormWindow
 
 struct DesignerSourceFile
 {
+    DesignerSourceFile() {}
+    virtual ~DesignerSourceFile() {}
+
     virtual TQString fileName() const = 0;
 };
 
 struct DesignerDock
 {
+    DesignerDock() {}
+    virtual ~DesignerDock() {}
+
     virtual TQDockWindow *dockWindow() const = 0;
 };
 
 struct DesignerOutputDock
 {
+    DesignerOutputDock() {}
+    virtual ~DesignerOutputDock() {}
+
     virtual TQWidget *addView( const TQString &pageName ) = 0;
     virtual void appendDebug( const TQString & ) = 0;
     virtual void clearDebug() = 0;