AdapterDetails.WhqlLevel Property (Microsoft.DirectX.Direct3D)

Retrieves a value that is used to determine the Microsoft Windows Hardware Quality Labs (WHQL) validation level for the driver and device pair.

Definition

Visual Basic	Public ReadOnly Property WhqlLevel As Integer
C#	public int WhqlLevel { get; }
C++	public: property int WhqlLevel {         int get(); }
JScript	public function get WhqlLevel() : int

Property Value

System.Int32
Value used to determine the validation level for the driver and device pair.

This property is read-only. 

Remarks

The Int32 is a packed date structure that defines the date of the release of the most recent WHQL test passed by the driver. It is permissible to perform "greater than" and "less than" operations on this value. The following table illustrates the date format.

Bits	Description
31-16	The year, a decimal number from 1999 upwards.
15-8	The month, a decimal number from 1 to 12.
7-0	The day, a decimal number from 1 to 31.

The following values also are used.

Value	Description
0	Not certified.
1	Validated by WHQL, but no date information is available.