Chart Control - ChartElement type

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ChartElement type

Printed From: Codejock Forums
Category: Codejock Products
Forum Name: Chart Control
Forum Description: Topics Related to Codejock Chart Control
URL: http://forum.codejock.com/forum_posts.asp?TID=19585
Printed Date: 28 April 2024 at 3:49am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: ChartElement type

Posted By: Minieggs
Subject: ChartElement type
Date Posted: 20 March 2012 at 9:45am

Hi All

When using ChartElement how can you tell what type of element the returned handle points to ?

Thanks

Replies:

Posted By: SuperMario
Date Posted: 28 March 2012 at 9:21am

Something like this:

void CMarkupTitleView::OnChartClick(NMHDR* /*pNMHDR*/, LRESULT* /*pResult*/)

{

CPoint pt;

GetCursorPos(&pt);

m_wndChartControl.ScreenToClient(&pt);

CXTPChartElement* pElement = m_wndChartControl.HitTest(pt);

if (DYNAMIC_DOWNCAST(CXTPChartTitle, pElement))

{

CXTPChartTitle* pTitle = (CXTPChartTitle*)pElement;

SetTitle(pTitle);

}

else if (DYNAMIC_DOWNCAST(CXTPChartAxis, pElement))

{

CXTPChartAxis* pAxis = (CXTPChartAxis*)pElement;

pAxis->GetTitle()->SetVisible(TRUE);

pAxis->GetTitle()->SetText(_T("Clicked On Axis"));

//SetTitle(pTitle);

}

else if (DYNAMIC_DOWNCAST(CXTPChartSeriesPoint, pElement))

{

CXTPChartSeriesPoint* pPoint = (CXTPChartSeriesPoint*)pElement;

TRACE(_T("Clicked on point with value: %i and argument: %s\n"), (int)pPoint->GetValue(0), pPoint->GetArgument());

}

else

{

SetTitle(NULL);

}