Subject: Using SDS applications



To write AutoCAD applications in C or C++, Autodesk® uses the ADS (AutoCAD Development System). This is an API (applications programming interface) that pro­vides a library to access AutoCAD-specific functions and drawing data.

The equivalent in CADdirect is called SDS™, the Solutions Development System™. SDS is a C/C++ language interface compatible with the ADS interface in AutoCAD. Like scripts and AutoLISP, you can run your existing ADS applications in CADdirect. Simply recompile the source code using the SDS libraries provided on the CADdirect CD-ROM, or, if you use an AutoCAD program written by a third-party vendor, contact that vendor for the CADdirect version.

CADdirect provides the Sds.H file, which redefines ADS function names to their SDS equivalents. SDS supports the AutoCAD dialog control language (DCL), which is used by ADS to define the look of a dialog box. You can use all DCL files unmod­ified within SDS.

Using_SDS_applications
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