Hi,
Frankly, I am trying to answer something about your questions:
1 - when i write the part number i would like then when i click apply it opens the save box with the same partnumber.
Do you mean to save the current file to a new file with the name which has the partnumber? If yes, you can just call Document.SaveAs("newfilename",True)
2 - it's possible to check-in the file during the saving and keeping the file checkout?
check-in out will need Vault API. Please post the question in Vault board
3 - i would like that some of the properties would be transfer to the drawing, like the descripion and the project (this two are from the part properties.
This can be done directly: get the properties of the part, get the properties of the drawing, copy the corresponding properties.
4 - transfer also for the drawing the custom titles to the custom iproperties of the drawing as pre fill in.
sure you can do this. get the custom property set of the drawing, add them one by one.
For 3,4 I suggest you take a look API help reference, or refer to this video
http://download.autodesk.com/media/adn/Autodesk_Inventor_API_Module2_Common_Document_Functionality_1...
