Save preferences with ACAPI_SetPreferences(ver, size, preferences) where prefs contains a hashtable;

Mihalcea Bogdan — Fri, 15 Oct 2021 07:15:25 GMT

I noticed in the DG_Test Example project that the MyPrefs struct is made only from static variables. For some time I am struggling to Debug my code for saving this kind of struct into the preferences.
In the hashtable below I want to store multiple dialog Item settings, of the same class. I keep getting memory errors. Is this because I am trying to change the memory dynamically, by adding elements to the HashTable?

typedef struct { Int32 version; API_AttributeIndex layer; API_AttributeIndex hatchLineType; API_AttributeIndex hatchFill; short hatchPen; short hatchbkgPen; short hatchContPen; bool hatchGlobal; bool hatchWithArea; short filler; GS::HashTable<Type1, short> someStuffToKeepHere;//This is what I want to do. } MyPrefs;

Re: Save preferences with ACAPI_SetPreferences(ver, size, preferences) where prefs contains a hashta

Viktor Kovacs — Fri, 15 Oct 2021 13:40:30 GMT

Yes, this is because GS::HashTable contains dynamically allocated data. DG_Test just writes it to the preferences based on the static size of the struct:

ACAPI_SetPreferences (CURR_ADDON_VERS, sizeof (MyPrefs), (GSPtr) &prefsData);

If you have complex structures in your class, you have to serialize it to a binary blob, and write that one in preferences.

You can find a detailed explanation here:

https://archicadapi.graphisoft.com/Archicad-maze-generator-add-on-tutorial-part-3

topic Re: Save preferences with ACAPI_SetPreferences(ver, size, preferences) where prefs contains a hashta in Archicad C++ API

Save preferences with ACAPI_SetPreferences(ver, size, preferences) where prefs contains a hashtable;

Re: Save preferences with ACAPI_SetPreferences(ver, size, preferences) where prefs contains a hashta