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WDF_TRI_STATE enumeration (wdftypes.h)

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[Applies to KMDF and UMDF]

The WDF_TRI_STATE enumeration type defines three values that the framework uses for some structure members and function parameters.

Syntax

typedef enum _WDF_TRI_STATE {
  WdfFalse = FALSE,
  WdfTrue = TRUE,
  WdfUseDefault = 2
} WDF_TRI_STATE, *PWDF_TRI_STATE;

Constants

 
WdfFalse
Value: FALSE
The meaning of this enumerator is specific to its use as a structure member or function parameter.
WdfTrue
Value: TRUE
The meaning of this enumerator is specific to its use as a structure member or function parameter.
WdfUseDefault
Value: 2
The meaning of this enumerator is specific to its use as a structure member or function parameter.

Remarks

The WDF_TRI_STATE enumeration type is available in version 1.0 and later versions of KMDF.

Requirements

Requirement Value
Minimum KMDF version 1.0
Minimum UMDF version 1.11
Header wdftypes.h (include Wdf.h)