获取指定窗口，修改窗口类型，把边框去掉，
using System;
using System.Runtime.InteropServices;
using UnityEngine;public class WindowCtrl : MonoBehaviour
{
[SerializeField]
private Material m_Material;
[SerializeField]
private string strProduct;//要控制的窗口名字，需要和Build->BuildSetting->PlayerSetting->ProductName 一致，private struct MARGINS
{
public int cxLeftWidth;
public int cxRightWidth;
public int cyTopHeight;
public int cyBottomHeight;
}
private enum WindowSizeType
{
Null,
Normal,
MinSize,
MaxSize
}
//private WindowSizeType windowSize = WindowSizeType.Normal;
// Define function signatures to import from Windows APIs
[DllImport("user32.dll")]
static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
[DllImport("user32.dll")]
private static extern IntPtr GetActiveWindow();
[DllImport("user32.dll")]
private static extern int SetWindowLong(IntPtr hWnd, int nIndex, uint dwNewLong);
[DllImport("Dwmapi.dll")]
private static extern uint DwmExtendFrameIntoClientArea(IntPtr hWnd, ref MARGINS margins);
[DllImport("user32.dll")]
public static extern bool SetForegroundWindow(IntPtr hWnd);//设置此窗体为活动窗体
[DllImport("user32.dll")]
public static extern bool ReleaseCapture();
[DllImport("user32.dll")]
public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);
[DllImport("user32.dll")]
public static extern bool ShowWindow(IntPtr hwnd, int nCmdShow);
// Definitions of window styles
const int GWL_STYLE = -16;
const uint WS_POPUP = 0x80000000;
const uint WS_VISIBLE = 0x10000000;
const uint WS_BORDER = 0x00800000;
const int SW_SHOWMINIMIZED = 2; //{最小化, 激活}
const int SW_SHOWMAXIMIZED = 3; //{最大化, 激活}
/// <summary>
/// 当前窗口句柄
/// </summary>
private IntPtr currWnd;
/// <summary>
/// 上次点击的时刻
/// </summary>
private float lastTime;
/// <summary>
/// 点击次数
/// </summary>
private float clickCount;
/// <summary>
/// 鼠标按下时间
/// </summary>
private float pressTime;
/// <summary>
/// 鼠标是否在此界面
/// </summary>
private bool isFocus;
/// <summary>
/// 屏幕的宽和高
/// </summary>
private float ScreenHeight;
//private float ScreenWidth;
void Start()
{
ScreenHeight = Screen.height;
//ScreenWidth = Screen.width;
//#if UNITY_EDITOR
var margins = new MARGINS() { cxLeftWidth = -1 };
////// Get a handle to the window
//////IntPtr currWnd = GetActiveWindow();
currWnd = FindWindow(null, strProduct);
////// Set properties of the window
////// See: https://msdn.microsoft.com/en-us/library/windows/desktop/ms633591%28v=vs.85%29.aspx
SetWindowLong(currWnd, GWL_STYLE, WS_VISIBLE | WS_POPUP);
////// Extend the window into the client area
//////See: https://msdn.microsoft.com/en-us/library/windows/desktop/aa969512%28v=vs.85%29.aspx
DwmExtendFrameIntoClientArea(currWnd, ref margins);
//#endif
}
// Pass the output of the camera to the custom material
// for chroma replacement
//void OnRenderImage(RenderTexture from,RenderTexture to)
//{
// //Graphics.Blit(from, to, m_Material);
//}
private void Update()
{
if (Input.GetMouseButtonDown(0))
{
if (ScreenHeight - Input.mousePosition.y > 30)//30 表示距离屏幕顶部多少的区域是可以拖动的区域
{
return;
}
pressTime = 0f;
isFocus = true;
{
float currTime = Time.realtimeSinceStartup;
if (currTime - lastTime < 0.3)
{
clickCount++;
if (clickCount == 1)
{
ShowWindow(currWnd, SW_SHOWMAXIMIZED);
}
}
else
{
clickCount = 0;
}
lastTime = currTime;
}
}
if (isFocus && pressTime >= 0.3f)
{ //这样做为了区分界面上面其它需要滑动的操作
ReleaseCapture();
SendMessage(currWnd, 0xA1, 0x02, 0);
SendMessage(currWnd, 0x0202, 0, 0);
}
if (isFocus)
pressTime += Time.deltaTime;
if (Input.GetMouseButtonUp(0))
{
pressTime = 0f;
isFocus = false;
}
}
private void SetWindowSize(WindowSizeType type)
{
int temp = 0;
switch (type)
{
case WindowSizeType.Normal:///双击全屏
{
temp = 3;
//windowSize = WindowSizeType.MaxSize;
}
break;
case WindowSizeType.MinSize:///最小尺寸
{
temp = 2;
//windowSize = WindowSizeType.MinSize;
}
break;
case WindowSizeType.MaxSize:///双击恢复
{
//windowSize = WindowSizeType.Normal;
temp = 1;
}
break;
default:
break;
}
ShowWindow(currWnd, temp);
}
}
创建C#脚本,复制上边代码，把脚本挂在摄像机上，把摄像机设置为 Solid Color模式，颜色设置为黑色 透明；
可能还要添加灯光，把模型显得明亮点，防止渲染出错
还有一个shader文档 ，下边贴上：
Shader "Custom/ChromakeyTransparent" {
Properties{
_MainTex("Base (RGB)", 2D) = "white" {}
_TransparentColourKey("Transparent Colour Key", Color) = (0,0,0,1)
_TransparencyTolerance("Transparency Tolerance", Float) = 0.01
}
SubShader{
Pass{
Tags{ "RenderType" = "Opaque" }
LOD 200
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#include "UnityCG.cginc"
struct a2v
{
float4 pos : POSITION;
float2 uv : TEXCOORD0;
};
struct v2f
{
float4 pos : SV_POSITION;
float2 uv : TEXCOORD0;
};
v2f vert(a2v input)
{
v2f output;
output.pos = UnityObjectToClipPos(input.pos);
output.uv = input.uv;
return output;
};
sampler2D _MainTex;
float3 _TransparentColourKey;
float _TransparencyTolerance;
float4 frag(v2f input) : SV_Target
{
// What is the colour that *would* be rendered here?
float4 colour = tex2D(_MainTex, input.uv);
// Calculate the different in each component from the chosen transparency colour
float deltaR = abs(colour.r - _TransparentColourKey.r);
float deltaG = abs(colour.g - _TransparentColourKey.g);
float deltaB = abs(colour.b - _TransparentColourKey.b);
// If colour is within tolerance, write a transparent pixel
if (deltaR< _TransparencyTolerance && deltaG < _TransparencyTolerance && deltaB < _TransparencyTolerance)
{
return float4(0.0f, 0.0f, 0.0f, 0.0f);
}
// Otherwise, return the regular colour
return colour;
}
ENDCG
}
}
}
新建shader，复制上边代码，新建材质球，选用创建的shader，把新建的材质拖拽到挂在摄像机上的脚本上，打包客户端即可。
记录一下。