FW_ObjMgr_CreateInstance
This function generates an instance of the class specified by means of Class-ID and at the same time returns an interface pointer to this object.
Return value
FW_ObjMgr_CreateInstance : HRESULT;
Name | Type | Description |
|---|---|---|
FW_ObjMgr_CreateInstance | HRESULT | Returns S_OK if the function call was successful. |
Inputs
VAR_INPUT
clsId : CLSID;
iid : IID;
pipUnk : POINTER TO ITcUnknown;
END_VAR
Name | Type | Description |
|---|---|---|
clsId | CLSID | Specifies the class from which an object should be created. |
iid | IID | Specifies the interface ID to which an interface pointer should be referenced. |
pipUnk | POINTER TO ITcUnknown | Returns the interface pointer to the created object. |
 | Necessary deletion of an object A generated object must be explicitly deleted again. There is no Garbage-Collector as in .Net. We recommend to use FW_ObjMgr_DeleteInstance, in order to delete the generated instance at the latest in the destructor of the object which created the instance. |
Requirements
TwinCAT Version | Hardware | Libraries to be integrated |
|---|---|---|
TwinCAT 3.1, Build 4020 | x86, x64, ARM | Tc3_Module |