// portabledevice.h

typedef enum tagWpdAttributeForm {
  WPD_PROPERTY_ATTRIBUTE_FORM_UNSPECIFIED,
  WPD_PROPERTY_ATTRIBUTE_FORM_RANGE,
  WPD_PROPERTY_ATTRIBUTE_FORM_ENUMERATION,
  WPD_PROPERTY_ATTRIBUTE_FORM_REGULAR_EXPRESSION,
  WPD_PROPERTY_ATTRIBUTE_FORM_OBJECT_IDENTIFIER
} WpdAttributeForm;
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Windows Driver Kit DDI reference (ne-portabledevice-tagwpdattributeform)

tagWpdAttributeForm enumeration

Description

The WpdAttributeForm enumeration type describes how a property stores its values.

Constants

`WPD_PROPERTY_ATTRIBUTE_FORM_UNSPECIFIED`

The form of the property's data was not specified.

`WPD_PROPERTY_ATTRIBUTE_FORM_RANGE`

The value is expressed as a range of values, with a minimum and a maximum.

`WPD_PROPERTY_ATTRIBUTE_FORM_ENUMERATION`

The property has a series of individual values.

`WPD_PROPERTY_ATTRIBUTE_FORM_REGULAR_EXPRESSION`

The property value is a regular expression, not a literal expression.

`WPD_PROPERTY_ATTRIBUTE_FORM_OBJECT_IDENTIFIER`

The property value is an object identifier.

Remarks

This enumeration is used by the WPD_PROPERTY_ATTRIBUTE_FORM property to describe how a property's data is stored.

WpdAttributeForm - NtDoc