CInstance::IsNull method (instance.h)

[The CInstance class is part of the WMI Provider Framework which is now considered in final state, and no further development, enhancements, or updates will be available for non-security related issues affecting these libraries. The MI APIs should be used for all new development.]

The IsNull method determines if the value of a particular property is NULL.


bool IsNull(
  LPCWSTR name



Name of property that is checked.

Return value

Returns TRUE if the property specified by name is NULL and FALSE if it is not.


Requirement Value
Minimum supported client Windows Vista
Minimum supported server Windows Server 2008
Target Platform Windows
Header instance.h (include FwCommon.h)
Library FrameDyn.lib
DLL FrameDynOS.dll; FrameDyn.dll