c++ - QTabWidget not appearing -

i have difficulties create ui.

what need :

1 qtabwidget 3 qwidget tabs. 1 of these widget contains qpushbuttons, qlineedits, , have contain qtabwidget.

my problem :

where i've sucess on other qtabwidget, 1 not appearing. i've manually put qpushbutton , qlineedit in .ui file. want dynamically create qtabwidget on same page.

my page code :

namespace ui { class cimageinterface; }   class cimageinterface : public qwidget {     q_object  public:     cimageinterface();     ~cimageinterface();  private:     ui::cimageinterface* ui;  capptabwidget* tabw_application; }; 

constructor :

cimageinterface::cimageinterface() : ui(new ui::cimageinterface) {   tabw_application = new capptabwidget(this);    ui->setupui(this); } 

qtabwidget code :

class capptabwidget : public qtabwidget {     q_object  public:     explicit capptabwidget(qwidget* parent);     ~capptabwidget();  protected:  private: ui::capptabwidget* ui; cappinterface* tab_application; int m_nbtab; }; 

contructor :

capptabwidget::capptabwidget(qwidget* parent)                             : ui(new ui::capptabwidget)                             , tab_application(new cappinterface)                             , m_nbtab(1) {   this->setgeometry(0, 230, 800, 360);   this->addtab(tab_application, "app5896"); } 

cappinterface qwidget derived class, setupui in constructor. i'm able see qtabwidget show() i'm not able put inside page.

thanks

thanks thuga helping me.

the solution put layout cimageinterface , put qtabwidget in it.

i've faced problem tring create in code, i've put in .ui file.

<layout class="qvboxlayout" name="apptablayout"> <property name="sizeconstraint">  <enum>qlayout::setnoconstraint</enum> </property> 

and can :

cimageinterface::cimageinterface() : ui(new ui::cimageinterface) {   tabw_application = new capptabwidget(this);    ui->setupui(this);    ui->apptablayout->addwidget(tabw_application); }