Get Blueprint class by C++ (Edit Writing)

I use Function “StaticLoadObject,StaticLoadClass”
it seem work

Example1)

//By StaticLoadObject

UObject* ClassPackage = ANY_PACKAGE;
AFrameWorkCameraManager* p1 = NULL;

UObject* BPObject = StaticLoadObject(UObject::StaticClass(), NULL, TEXT("/Game/Mannequin/CameraManager.CameraManager_C"),NULL,LOAD_None,NULL)
);

Example2)

//By StaticLoadClass
UObject* ClassPackage = ANY_PACKAGE;
AFrameWorkCameraManager* p2 = NULL;

UClass* BPClass = StaticLoadClass(UClass::StaticClass(), NULL, TEXT("/Game/Mannequin/CameraManager.CameraManager_C"),NULL,LOAD_None,NULL)
);

both of them Loading is Success, but my problem is other.
i have to cast to AFrameWorkCameraManager to use AFrameWorkCameraManager’s member value.

p1 = Cast<AFrameWorkCameraManager>( /* BPClass or BPObject */ );

#the result of p1… is NULL…

Self - Answer