Arthur Cousseau

#include <OP/OP_OTLLibrary.h>
#include <OP/OP_OperatorTable.h>
#include <OP/OP_Network.h>

void readDialogScript(const char* hdaPath)
{
    OP_OTLLibrary lib(hdaPath, ""); // hdaPath == "Something.hda"

    UT_String table_name, op_name;
    OP_OperatorTable* table;
    OP_Operator* op;

    for (int i = 0; i < lib.getNumDefinitions(); i++)
    {
        table_name = lib.getDefinitionOpTableName(i); // table_name == "Sop"
        table = OP_Network::getOperatorTable(table_name); // table == nullptr. WHY??
        op_name = lib.getDefinitionName(i); // op_name == "Something"
        op = table ? table->getOperator(op_name) : NULL; // op stays nullptr since table is nullptr

        // check if the library does indeed define this op;
        // it may be that some other library that does.
        if (op && &lib != op->getOTLLibrary())
            continue;

        // Crashes because table is nullptr (but should not be).
        auto& inputLabels = op->getInputLabels();
        auto& outputLabels = op->getOutputLabels();
        auto* templates = op->getParmTemplates();
    }
}

[DllImport("libop.dll", CallingConvention = CallingConvention.Cdecl, EntryPoint = "?OPgetDirector@@YAPEAVOP_Director@@XZ")]
public static extern IntPtr OPgetDirector();