Demand Loading on Command

AutoCAD will attempt to load the appropriate ObjectARX application if the user invokes a command that is not registered with AutoCAD.

To support demand loading on command invocation, the ObjectARX application's installation program must create the appropriate keys and values in the system registry for the application's commands. The application's Commands section of the system registry should contain command information like this:

\\HKEY_LOCAL_MACHINE\SOFTWARE\Autodesk\AutoCAD\R24.1\
    ACAD-5101:409\
        Applications\polysamp\
            DESCRIPTION:REG_SZ:PolyCad
            LOADCTRLS:REG_DWORD:0xd
            LOADER:REG_SZ:C:\Program Files\polysampinc\polyui.arx
 
            Commands\
                ASDKPOLY:REG_SZ:ASDKPOLY
                ASDKDRAGPOLY:REG_SZ:ASDKDRAGPOLY
                ASDKPOLYEDIT:REG_SZ:ASDKPOLYEDIT
            Groups\
                ASDK:REG_SZ:ASDK
                ...

Note: Invoking the command using Group prefix will also disambiguate the command. In other words, GROUP_NAME.COMMAND_NAME will demand load the command associated with the specified command group.

The ObjectARX application must also include the appropriate calls to the acedRegCmds macro for demand loading on command to work.