Using Programming Languages other than VBA

Sub Example_HatchObjectType()
	' This example changes the value of the HatchObjectType property.
	' The example requires that the active drawing contain an existing hatch.

	Dim ent As AcadHatch ' AcadEntity
	Dim util As AcadUtility
	Set util = ThisDrawing.Utility
	Dim pt As Variant
	Call util.GetEntity(ent, pt, "Select hatch :")
	With ent
		MsgBox "Initial value of HatchObjectType = " & .HatchObjectType
		.HatchObjectType = acGradientObject
		.GradientAngle = 3.1415 / 4
		.GradientCentered = False
		.GradientName = "SPHERICAL"
		Dim col1 As AcadAcCmColor, col2 As AcadAcCmColor
		Set col1 = AcadApplication.GetInterfaceObject("AutoCAD.AcCmColor.16")
		Set col2 = AcadApplication.GetInterfaceObject("AutoCAD.AcCmColor.16")
		Call col1.SetRGB(255, 0, 0)
		Call col2.SetRGB(0, 255, 0)
		.GradientColor1 = col1
		.GradientColor2 = col2
		MsgBox "New value of HatchObjectType = " & .HatchObjectType
	End With
End Sub