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.

Syntax

bool IsNull(
  LPCWSTR name
);

Parameters

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.

Requirements