numRegions
Get the current number of regions.
[read-only property]
numRegions([out, retval] int *n)
This property contains the current number of highlighted regions.
VB:
Dim page As Long
Dim x0 As Double, y0 As Double, x1 As Double, y1 As Double
Dim color As Long, selectColor As Long
Dim label As String
Dim region As Long
For i = 0 To viewer.numRegions - 1
region = viewer.getRegion(i)
viewer.getRegionInfo(region, page, x0, y0, x1, y1, color, selectColor, label)
' do something with the region ...
Next i