unity3dc#脚本例子

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using System.IO;

using System.Runtime.InteropServices;    //添加如下命名空间 需要是用 DllImport

//引用内存映射文件命名空间

using System.IO.MemoryMappedFiles;

using System.Security.Principal;

using UnityEngine.Networking;

public class NewBehaviourScript : MonoBehaviour

{

[DllImport(&＃64;"unitydll", EntryPoint &＃61; "testhello")]

    public static extern int testhello(int a, int b);

[DllImport(&＃64;"unitydll", EntryPoint &＃61; "CreateSharedMemory")]

    public static extern void CreateSharedMemory();

[DllImport(&＃64;"unitydll", EntryPoint &＃61; "DestorySharedMemory")]

    public static extern void DestorySharedMemory();

[DllImport(&＃64;"unitydll", EntryPoint &＃61; "SetVCamData")]

    //public static extern void SetVCamData(const unsigned char* lpcData, int nSrcWidth, int nSrcHeight);

public static extern void SetVCamData(System.Byte[] lpcData, int nSrcWidth, int nSrcHeight, int len);

    [DllImport(&＃64;"user32.dll", EntryPoint &＃61; "ShowWindow")]

    public static extern bool ShowWindow(System.IntPtr hwnd, int nCmdShow);

    [DllImport("user32.dll", EntryPoint &＃61; "GetForegroundWindow")]

    public static extern System.IntPtr GetForegroundWindow();

    [DllImport("user32.dll", SetLastError &＃61; true)]

    private static extern System.IntPtr FindWindow(string lpClassName, string lpWindowName);

//[DllImport(&＃64;"unitydll", EntryPoint &＃61; "GetVCamData")]

   // public static extern BOOL GetVCamData(System.Byte[] lpcData, int& width, int& height);

public Camera mainCam; //待截图的目标摄像机

    RenderTexture rt;  //声明一个截图时候用的中间变量 

    Texture2D t2d ;

    int num &＃61; 0;  //截图计数

int sum2 &＃61; 0;

int imageWidth &＃61; 800;

int imageHeight &＃61; 600;

//定义游戏物体

GameObject m_obj;

    void Start () {

//找到物体

m_obj &＃61; GameObject.Find("3dgift_loli_dance01");

//设置帧率

Application.targetFrameRate&＃61;15;

        t2d &＃61; new Texture2D(800,600,TextureFormat.RGBA32,false);

        rt &＃61; new RenderTexture(800, 600, 32);

        mainCam.targetTexture &＃61; rt;

Debug.Log("test **********");

sum2 &＃61; testhello(3,4);

Debug.Log("调用dll接口&＃xff1a;"&＃43;sum2.ToString());

CreateSharedMemory();

//隐藏窗口

ShowWindow(FindWindow(null, "New Unity Project9"), 0);

    }

    void Update () {

//开始播放动画

if (Input.GetKeyDown(KeyCode.W))

{

m_obj.transform.GetComponent().wrapMode &＃61; WrapMode.Loop;

m_obj.transform.GetComponent().Play ("jump");

}

//停止播放动画

if (Input.GetKeyDown(KeyCode.Q))

{

m_obj.transform.GetComponent().wrapMode &＃61; WrapMode.Loop;

m_obj.transform.GetComponent().Stop ("jump");

}

//显示、隐藏物体

if (Input.GetKeyDown(KeyCode.Q))

{

//隐藏物体

m_obj.SetActive(false);

//显示物体

//m_obj.SetActive(true);

}

        //按下空格键来截图

        //if (Input.GetKeyDown(KeyCode.Space))

        {

            //将目标摄像机的图像显示到一个板子上

            //pl.GetComponent().material.mainTexture &＃61; rt;

//CreateSharedMemory();

            //截图到t2d中

            RenderTexture.active &＃61; rt;  

//int width &＃61; rt.width;

//int height &＃61; rt.height;

//Debug.Log("当前截图宽为&＃xff1a;"&＃43;width.ToString());

//Debug.Log("当前截图高为&＃xff1a;"&＃43;height.ToString());

            t2d.ReadPixels(new Rect(0, 0, rt.width, rt.height), 0, 0);

            t2d.Apply();

            RenderTexture.active &＃61; null;

            //将图片保存起来

           // byte[] byt &＃61; (byte[])t2d.EncodeToPNG().Clone();

byte[] byt &＃61; t2d.EncodeToPNG();

int test_length &＃61; byt.Length;

//Debug.Log("当前截图长度为&＃xff1a;"&＃43;test_length.ToString());

           // File.WriteAllBytes(Application.dataPath &＃43; "//"&＃43; num.ToString() &＃43;".png", byt);

//var data &＃61; t2d.GetRawTextureData();

SetVCamData(byt, 800, 600, test_length);

           // Debug.Log("当前截图序号为&＃xff1a;"&＃43;num.ToString());

           // num&＃43;&＃43;;

        }          

    }

}