Hello!

Help me to delete this:

441.png

Qt Code: 
  1. #include "Dialog.h"
  2. #include "ui_Dialog.h"
  3.  
  4. Dialog::Dialog(QWidget *parent) :
  5.     QDialog(parent),
  6.     ui(new Ui::Dialog),
  7.     x( 20 ),
  8.     y( 20 )
  9. {
  10.     ui->setupUi(this);
  11.  
  12.     connect( &m_timer, SIGNAL( timeout() ),
  13.              this, SLOT( slotUpdate() ) );
  14.     m_timer.start( 50 );
  15.     //this->setStyleSheet( "background-color: rgb(177, 177, 177);" "color: black;" );
  16. }
  17.  
  18. Dialog::~Dialog()
  19. {
  20.     delete ui;
  21. }
  22.  
  23. void Dialog::slotUpdate()
  24. {
  25.     QPushButton *horse1 = new QPushButton( this );
  26.     horse1->setGeometry( 20+x, 20+y, 50, 50 );
  27.     //horse1->setStyleSheet("background-color: rgb(177, 177, 177);" "color: black;");
  28.  
  29.     //m_horses.push_back( horse1 );
  30.  
  31.     horse1->show();
  32.     ++x;
  33.     ++y;
  34.     //this->setStyleSheet( "background-color: rgb(177, 177, 177);" "color: black;" );
  35.     update();
  36. }
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