Zoom In / Zoom Out
BCGControlBar Pro (MFC)
BCGSuite (MFC)
BCGControlBar for .NET
The Gantt Chart control supports Zoom In / Zoom Out feature.
Sample code:
void CBCGPGanttDemoView::OnGanttZoomOut()
{
CBCGPGanttChart* pChart = GetChart ();
if (pChart != NULL)
{
ASSERT_VALID (pChart);
pChart->DecreaseScale ();
}
}