We are now working on a project for stock or future trading management. So we need draw many charts like http://www.google.com//finance?chdnp...SP:.INX&ntsp=0

Usually the other team in our company will use TeeChart on vs2008 to do this, Our team can't use this because we are using Qt. I tried to use teechart pro v2010 activex edition on Qt, But it failed. my test code like this:
Qt Code: 
  1. QAxWidget *tchart = new QAxWidget( this );
  2.     tchart->setControl( "TeeChart.ChartGrid.9" );
  3.  
  4.     if ( tchart->isNull() == false ) {
  5.         ui->plainTextEdit->appendPlainText( tchart->generateDocumentation() );
  6.     }
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it report an error: This application has requested the RunTime to terminate it in an unusual way Please contact the application's support team for more information
Then the program crashed.

My question is: Anyone here succeeded use teechart on QT? If answer is No, We need change our design to use qwt instead.

Thanks for any reply

My environment is: win7, qt4.7.2-mingw, qt creater for mingw