'2006-3-18日 VB.NET DirectX和图形学学习
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Imports Microsoft.DirectX
Imports Microsoft.DirectX.Direct3D
Imports System
Imports System.Drawing
Imports System.Windows.Forms

Public Class Form1
    Inherits Form

    Private m_dev As Device'Direct3D设备，即你的显卡

    Sub New()
        Me.ClientSize = New System.Drawing.Size(400, 300)
        Me.Text = "Direct3D VB.NET"
    End Sub

    Public Sub Render()
        If m_dev Is Nothing Then Exit Sub
        m_dev.Clear(ClearFlags.ZBuffer Or ClearFlags.Target, Color.Red, 0.0, 0)
        m_dev.BeginScene()

        m_dev.EndScene()
        m_dev.Present()
    End Sub

    Shared a As Integer
    Public Shared Sub Main(ByVal CmdArgs() As String)
        Dim frm1 As New Form1()
        frm1.Show()
        While frm1.Created
            frm1.Render()
            Application.DoEvents()
        End While

    End Sub

    Private Sub Form1_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosedEventArgs) Handles Me.FormClosed
        Me.Dispose()
    End Sub

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Try
            Dim pp As New PresentParameters
            pp.Windowed = True
            pp.SwapEffect = SwapEffect.Discard
            pp.EnableAutoDepthStencil = True
            pp.AutoDepthStencilFormat = DepthFormat.D16
            Me.m_dev = New Device(Nothing, DeviceType.Hardware, Me, CreateFlags.SoftwareVertexProcessing, pp)
            If m_dev Is Nothing Then
                MessageBox.Show("初始化设备失败")
            End If
        Catch ex As Exception
            MessageBox.Show(ex.Message)
        End Try
    End Sub
End Class
程序的流程从主函数开始，Direct3D通过控制D3D设备来控制屏幕图像的绘制。PresentParameter来配置设备的参数。