This example comes from http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/440493. It searches the ModelSpace collection for text objects. Once found it casts them and alter one of the text specific properties. To test this code AutoCAD must be started with a blank file open add at least one dtext object with 'Spam' as its value:
acad = win32com.client.Dispatch("AutoCAD.Application")
doc = acad.ActiveDocument # Document object
ms = doc.ModelSpace # Modelspace "collection"
count = ms.Count # Number of items in modelspace
for i in range(count):
item = ms.Item(i)
if 'text' in item.ObjectName.lower(): # Text objects are AcDbText
# once we know what it is we can cast it
text = win32com.client.CastTo(item, "IAcadText")
if text.TextString == "Spam":
text.TextString = "Maps"
Last Updated ( Thursday, 07 February 2008 )