ChartElement type |
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Minieggs
Newbie Joined: 20 March 2012 Status: Offline Points: 2 |
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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 ?
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SuperMario
Admin Group Joined: 14 February 2004 Status: Offline Points: 18057 |
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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); } }
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