Dear my friends... I want to lauch a form as child form (kontenForm) in an MDI form (named depanForm) which chosen from the mainmenu. I made the Slot to launch the child form but I still get this error message: " depanForm::helpContents(): Not implemented yet ". Please tell me, where is the mistake. Thank you very much in advance. === //depanform.h #ifndef DEPANFORM_H #define DEPANFORM_H #include <qvariant.h> #include <qmainwindow.h> class QVBoxLayout; class QHBoxLayout; class QGridLayout; class QAction; class QActionGroup; class QToolBar; class QPopupMenu; class QWorkspace; class depanForm : public QMainWindow { Q_OBJECT public: depanForm( QWidget* parent = 0, const char* name = 0, WFlags fl = WType_TopLevel ); ~depanForm(); QMenuBar *menubar; QPopupMenu *helpMenu; QToolBar *toolBar; QAction* helpContentsAction; QAction* helpIndexAction; QAction* helpAboutAction; public slots: virtual void helpAbout(); depanForm * helpContents(); depanForm * helpIndex(); protected: protected slots: virtual void languageChange(); private slots: private: QWorkspace * workspace; }; #endif // DEPANFORM_H ========= //depanform.cpp #include "depanform.h" #include <qvariant.h> #include <qlayout.h> #include <qtooltip.h> #include <qwhatsthis.h> #include <qaction.h> #include <qmenubar.h> #include <qpopupmenu.h> #include <qtoolbar.h> #include <qimage.h> #include <qpixmap.h> #include "kontenform.h" /* * Constructs a depanForm as a child of 'parent', with the * name 'name' and widget flags set to 'f'. * */ depanForm::depanForm( QWidget* parent, const char* name, WFlags fl ) : QMainWindow( parent, name, fl ) { workspace = new QWorkspace(); setCentralWidget(workspace); (void)statusBar(); if ( !name ) setName( "depanForm" ); // actions helpContentsAction = new QAction( this, "helpContentsAction" ); helpIndexAction = new QAction( this, "helpIndexAction" ); helpAboutAction = new QAction( this, "helpAboutAction" ); // toolbars toolBar = new QToolBar( "", this, DockTop ); helpContentsAction->addTo( toolBar ); helpIndexAction->addTo( toolBar ); helpAboutAction->addTo( toolBar ); // menubar menubar = new QMenuBar( this, "menubar" ); helpMenu = new QPopupMenu( this ); helpContentsAction->addTo( helpMenu ); helpIndexAction->addTo( helpMenu ); helpMenu->insertSeparator(); helpAboutAction->addTo( helpMenu ); menubar->insertItem( "", helpMenu, 0 ); languageChange(); resize( QSize(600, 480).expandedTo(minimumSizeHint()) ); // signals and slots connections connect( helpIndexAction, SIGNAL( activated() ), this, SLOT( helpIndex() ) ); connect( helpContentsAction, SIGNAL( activated() ), this, SLOT( helpContents() ) ); connect( helpAboutAction, SIGNAL( activated() ), this, SLOT( helpAbout() ) ); } /* * Destroys the object and frees any allocated resources */ depanForm::~depanForm() { // no need to delete child widgets, Qt does it all for us } /* * Sets the strings of the subwidgets using the current * language. */ void depanForm::languageChange() { setCaption( tr( "Kundenverwaltung - Programmierer : Patrix Linux" ) ); helpContentsAction->setText( tr( "Contents" ) ); helpContentsAction->setMenuText( tr( "&Contents..." ) ); helpContentsAction->setAccel( QString::null ); helpIndexAction->setText( tr( "Index" ) ); helpIndexAction->setMenuText( tr( "&Index..." ) ); helpIndexAction->setAccel( QString::null ); helpAboutAction->setText( tr( "About" ) ); helpAboutAction->setMenuText( tr( "&About" ) ); helpAboutAction->setAccel( QString::null ); toolBar->setLabel( tr( "Tools" ) ); menubar->findItem( 0 )->setText( tr( "&Help" ) ); } kontenForm * depanform::helpIndex() { kontenForm * kf = new kontenForm(workspace, 0, WDestructiveClose); kf->show(); } void depanForm::helpContents() { kontenForm * kf = new kontenForm(workspace); kf->show(); } void depanForm::helpAbout() { } __________________________________ Do you Yahoo!? Yahoo! Mail is new and improved - Check it out! http://promotions.yahoo.com/new_mail