MatrixFixed Structure

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Represents a matrix for fixed-point math operations.

Namespace:  Microsoft.WindowsMobile.DirectX.Direct3D
Assembly:  Microsoft.WindowsMobile.DirectX (in Microsoft.WindowsMobile.DirectX.dll)


Public Structure MatrixFixed
Dim instance As MatrixFixed
public struct MatrixFixed
public value class MatrixFixed
type MatrixFixed =  struct end


This structure represents a 4x4 matrix of FixedPoint values. The fields of this structure are named with the row number first, then the column number.

In Microsoft Windows Mobile Direct3D, the M34 element of a projection matrix cannot be a negative number. If an application needs to use a negative value in this location, it should scale the entire projection matrix by -1 instead.


The following examples shows how to use a MatrixFixed structure.

Sub DoDraw() 
    Dim matrWorld As MatrixFixed
    Dim matrfxRotate As MatrixFixed = MatrixFixed.Identity
    matrWorld = MatrixFixed.Multiply(matrfxRotate, New MatrixFixed(Matrix.RotationZ(System.Convert.ToSingle(Math.PI * 2.0))))
    device.SetTransformFixed(TransformType.World, matrWorld)
End Sub
void DoDraw()
    MatrixFixed matrWorld;
    MatrixFixed matrfxRotate = MatrixFixed.Identity;
    matrWorld = (MatrixFixed.Multiply(matrfxRotate, new MatrixFixed(Matrix.RotationZ((float)(Math.PI * 2.0)))));
    device.SetTransformFixed(TransformType.World, matrWorld);

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.


Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Compact Framework

Supported in: 3.5, 2.0

See Also


MatrixFixed Members

Microsoft.WindowsMobile.DirectX.Direct3D Namespace


Other Resources

Mobile Direct3D Programming in the .NET Compact Framework