Device.UpdateSurface Method

Language:

Copies rectangular subsets of pixels from one surface to another.

Definition

Visual Basic Public Sub UpdateSurface( _
    ByVal sourceSurface As Surface, _
    ByVal sourceRect As Rectangle, _
    ByVal destinationSurface As Surface, _
    ByVal destPoint As Point _
)

C# public void UpdateSurface(
    Surface sourceSurface,
    Rectangle sourceRect,
    Surface destinationSurface,
    Point destPoint
);

C++ public:
void UpdateSurface(
    Surface^ sourceSurface,
    Rectangle sourceRect,
    Surface^ destinationSurface,
    Point destPoint
);

JScript public function UpdateSurface(
    sourceSurface : Surface,
    sourceRect : Rectangle,
    destinationSurface : Surface,
    destPoint : Point
);

Visual Basic	Public Sub UpdateSurface( _ ByVal sourceSurface As Surface, _ ByVal sourceRect As Rectangle, _ ByVal destinationSurface As Surface, _ ByVal destPoint As Point _ )
C#	public void UpdateSurface( Surface sourceSurface, Rectangle sourceRect, Surface destinationSurface, Point destPoint );
C++	public: void UpdateSurface( Surface^ sourceSurface, Rectangle sourceRect, Surface^ destinationSurface, Point destPoint );
JScript	public function UpdateSurface( sourceSurface : Surface, sourceRect : Rectangle, destinationSurface : Surface, destPoint : Point );

Parameters

sourceSurface Microsoft.DirectX.Direct3D.Surface
A Surface object that represents the source surface; must point to a surface other than destinationSurface.

sourceRect System.Drawing.Rectangle
A Rectangle object that represents the rectangle on the source surface. Specifying null for this parameter causes the entire surface to be copied.

destinationSurface Microsoft.DirectX.Direct3D.Surface
A Surface object that represents the destination surface.

destPoint System.Drawing.Point
A Point object that represents the upper-left corner of the destination rectangle. Specifying null for this parameter causes the entire surface to be copied.

Remarks

This method has the following restrictions.

The source surface must have been created with Pool.SystemMemory.

The destination surface must have been created with Pool.Default.

Neither surface can be locked or hold an outstanding device context.

Neither surface can be created with multisampling. The only valid flag for both surfaces is MultiSampleType.None.

The surface format cannot be a depth stencil format.

The source and destination rectangles must fit within the surface.

No stretching or shrinking is allowed; that is, the rectangles must be the same size.

The source format must match the destination format.

The following table shows the supported format combinations.

Destination format

Source format Texture RT texture RT Off-screen plain

Texture Yes Yes Yes* Yes

RT texture No No No No

RT No No No No

Off-screen plain Yes Yes Yes Yes

* If the driver does not support the requested copy, it is emulated using locking and copying.

If the application needs to copy data from a Pool.Default render target to a Pool.SystemMemory surface, it can use Device.GetRenderTargetData.

Exceptions

InvalidCallException The method call is invalid. For example, a method's parameter might contain an invalid value.

	Destination format
Source format	Texture	RT texture	RT	Off-screen plain
Texture	Yes	Yes	Yes*	Yes
RT texture	No	No	No	No
RT	No	No	No	No
Off-screen plain	Yes	Yes	Yes	Yes

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sourceSurface	Microsoft.DirectX.Direct3D.Surface A Surface object that represents the source surface; must point to a surface other than destinationSurface.
sourceRect	System.Drawing.Rectangle A Rectangle object that represents the rectangle on the source surface. Specifying null for this parameter causes the entire surface to be copied.
destinationSurface	Microsoft.DirectX.Direct3D.Surface A Surface object that represents the destination surface.
destPoint	System.Drawing.Point A Point object that represents the upper-left corner of the destination rectangle. Specifying null for this parameter causes the entire surface to be copied.