Opening and saving

The way Bricscad opens and saves drawings is controlled through a series of system variables and user preferences.

In the table below the SYSTEM VARIABLES are fully capitalized.

Name	Titel	Description
ShowFullPathInTitle	Display full path in title	Controls wether the full path of a drawing displays in the title bar, or the file name only.
INDEXCTL	Index Control	Determines whether layer and/or spatial indexes are created and saved. The layer index lists all entities in the drawing and what layer they are on. The spatial index stores the location of all the entities in 3D space. The indexes are used to load Xrefs if demand loading is enabled. If a layer index exists, entities on layers which are Off or Frozen are not loaded. If a spatial index exists, entities in clipped Xrefs which are outside the clipping boundary are not loaded. The demand loading of Xrefs is controlled through the XLOADCTL system variable). Creating indexes slows down the saving of a drawing, but increases the speed of Xrefs. Therefore, do not create indexes for drawings that will not be used as an external reference. 0 = No indexes, 1 = Layer index, 2 = Spatial index, 3 = Layer index and spatial index.
ISAVEBAK	Incremental save backup	Controls the creation of a backup file (BAK). Improves the speed of incremental saves if switched off, especially for large drawings. Please notice that in some cases (i.e. a power failure during a save), it might be possible drawing data are lost.
ISAVEPERCENT	Save percent	This system variable controls how often Bricscad performs a full save. A full save reorganizes all the data in the drawing database and creates a compact file. A partial save stores all changes a the end of the drawing data base. A full save takes longer to be executed than a partial save. If ISAVEPERCENT = 0, each save is a full save. The higher the value of ISAVEPERCENT, the longer the time between two full saves.
PROXYGRAPHICS	Proxy graphics	Determines whether images of proxy entities(1) are saved in the drawing. If switched off, a bounding box displays instead.
PROXYNOTICE	Proxy notice	Displays a notice when you open a drawing containing proxy entities(*) created by an application that is not present.
PROXYSHOW	Proxy show	Controls how proxy entities(1) display in a drawing. 0 = Not displayed, 1 = Graphic images, 2 = Bounding box.
PROXYWEBSEARCH	Proxy web search	Determines whether Bricscad checks for object enablers: 0 = Never, 1 = If a live Internet connection is present.
SaveFormat	Save format	Sets the default dwg version to save a drawing.
SAVETIME	Save time interval	Sets the interval in minutes for automatic saves. If set to zero, automatic saves are turned off. Automatic saves are created in the folder defined by the SAVEFILEPATH system variable.
WorspaceSecurity	Enable macros	Defines whether macros are enabled when loading an VBA-project.
AutosaveChecksOnlyFirstbitDBMOD	Ignore all but first bit of DBMOD(2) for autosave	If this user preference is switched on, no autosave file will be created for files that are viewed only.
CloseChecksOnlyFirstBitDBMOD	Ignore all but first bit of DBMOD(2) for close	If this user preference is switched on, you can view a file, then close it without getting a request to save the file.

(1) Proxy entities are custom entities which are created by an add-on application. If the add-on is currently not loaded or not installed, such entities cannot be displayed properly.

(2) DBMOD: Stores the status of the drawing modification as a bit-code as the sum of the following values: 1 = Object database modified, 4 = Database variable modified, 8 = Window modified, 16 = View modified, 32 = Field modified.