Viewport Structure (Microsoft.DirectX.Direct3D)

Defines the window dimensions of a render target surface onto which a 3-D volume projects.

Definition

Visual Basic	Public Structure Viewport
C#	public struct Viewport
C++	public value class Viewport sealed
JScript	In JScript, you can use structures, but you cannot define your own.

Members Table

The following table lists the members exposed by the object.

Methods

Method	Description
ToString	Obtains a string representation of the current instance.
Viewport	Initializes a new instance of the Viewport class.

Properties

Property	Description
Height	Retrieves or sets the height dimension of the viewport on the render target surface, in pixels.
MaxZ	Retrieves or sets the maximum value of the clip volume.
MinZ	Retrieves or sets the minimum value of the clip volume.
Width	Retrieves or sets the width dimension of the viewport on the render target surface, in pixels.
X	Retrieves or sets the pixel coordinate of the upper-left corner of the viewport on the render target surface.
Y	Retrieves or sets the pixel coordinate of the upper-left corner of the viewport on the render target surface.

Remarks

The X, Y, Width, and Height members describe the position and dimensions of the viewport on the render-target surface. Usually, applications render to the entire target surface; when rendering on a 640x480 surface, these members should be 0, 0, 640, and 480, respectively. The MinZ and MaxZ properties typically are set to 0.0 and 1.0, but can be set to other values to achieve specific effects. For example, setting them both to 0.0 can force the system to render objects to the foreground of a scene, while setting both to 1.0 can force the objects into the background.

When the viewport parameters for a device change (due to the use of the Device.Viewport property), the driver builds a new transformation matrix.

Structure Information

Namespace	Microsoft.DirectX.Direct3D
Assembly	Microsoft.DirectX.Direct3D (microsoft.directx.direct3d.dll)
Strong Name	Microsoft.DirectX.Direct3D,  Version=1.0.900.0,  Culture=neutral,  PublicKeyToken=d3231b57b74a1492