Software Developer's Kit - ChemDraw

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IsHDot Property
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Member of ChemDraw Control.Atom

Sets and returns whether the atom has an H-dot indicator. 

Property type

Read-write property


Visual Basic
Public Property IsHDot() As Boolean

Return Type



Sets and returns whether the atom has an H-dot indicator, or not. To represent a hydrogen atom that is coming out of the plane toward us along the Z-axis, use the H-dot property. It indicates the presence of an implicit hydrogen with specified stereochemistry equivalent to an explicit H atom with a wedged bond.

The atom drawing becomes a dot to indicate the stereochemistry of a single hydrogen atom.


'Declares variables
 Dim myAtom As ChemDrawControl10Ctl.Atom
'Checks that there is an atom loaded in the variable
 If  Selection.Atoms.Count < 1 Then
     Exit Sub
 End If

'Checks if this property is True/False 
  If  myAtom.IsHDot = True then
         Text1.Text = "Atom is IsHDot"
         Text1.Text = "Atom is not IsHDot"
     End If
 End Sub 

See Also