Article # 144, added by Geoworks, historical record
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About ViewerClass libraries
The viewer library must exist in the SP_SYSTEM directory (or a subdirectory). ViewerLibraryOpen expects VP_libraryName to contain the path and name of the library relative to SP_SYSTEM. If you want to check for the existence of the library, you can use GeodeUseLibrary. The good thing about this is that it doesn't slow down the system much because if it loads the library, then ViewerLibraryOpen doesn't need to (i.e., the library is only loaded once). You have to call GeodeFreeLibrary after the call to ViewerLibraryOpen so that the library can be freed, though.