Question

我已将用户Application.OpenURL发送到浏览器。现在我想以编程方式将统一带回前台。

没有插件有没有办法做到这一点？

感谢。

Answer 1

在将用户送走之前，先使用GetActiveWindow获取窗口的句柄，然后再使用SetForegroundWindow使用该句柄。在使用SetForegroundWindow之前，您可以try simulating an Alt keypress调出菜单，以遵守SetForegroundWindow中的certain limitations：

private IntPtr unityWindow;

[DllImport("user32.dll")] 
static extern IntPtr GetActiveWindow();

[DllImport("user32.dll")] 
static extern bool SetForegroundWindow(IntPtr hWnd); 

[DllImport("user32.dll")]
static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, int dwExtraInfo);

const int ALT = 0xA4;
const int EXTENDEDKEY = 0x1;
const int KEYUP = 0x2;

private void SendUser() 
{
    unityWindow = GetActiveWindow();

    Application.OpenURL("http://example.com");

    StartCoroutine(RefocusWindow(30f));
}


private IEnumerator RefocusWindow(float waitSeconds) {
    // wait for new window to appear
    yield return new WaitWhile(() => unityWindow == GetActiveWindow());

    yield return new WaitForSeconds(waitSeconds);

    // Simulate alt press
    keybd_event((byte)ALT, 0x45, EXTENDEDKEY | 0, 0);

    // Simulate alt release
    keybd_event((byte)ALT, 0x45, EXTENDEDKEY | KEYUP, 0);

    SetForegroundWindow(unityWindow);
}

Answer 2

如果您在Windows中使用Unity3D，请在调用Application.OpenURL（...）后尝试以下代码：

[DllImport("user32.dll")]
private static extern bool SetForegroundWindow(IntPtr hWnd);

var prc = Process.GetProcessesByName("..."); //Get Unity's process, or 
var prc = Process.GetCurrentProcess();
if (prc.Length > 0) 
    SetForegroundWindow(prc[0].MainWindowHandle);

Answer 3

这适用于Unity 5.0.1 / Windows 8.1：

using UnityEngine;
using System;
using System.Collections;
using System.Runtime.InteropServices;

public class ForeGrounder : MonoBehaviour {

    private const uint LOCK = 1;
    private const uint UNLOCK = 2;

    private IntPtr window;

    void Start() {
        LockSetForegroundWindow(LOCK);
        window = GetActiveWindow();
        StartCoroutine(Checker());
    }

    IEnumerator Checker() {
        while (true) {

            yield return new WaitForSeconds(1);
            IntPtr newWindow = GetActiveWindow();

            if (window != newWindow) {
                Debug.Log("Set to foreground");
                SwitchToThisWindow(window, true);
            }
        }
    }

    [DllImport("user32.dll")]
    static extern IntPtr GetActiveWindow();
    [DllImport("user32.dll")]
    static extern bool LockSetForegroundWindow(uint uLockCode);
    [DllImport("user32.dll")]
    static extern void SwitchToThisWindow(IntPtr hWnd, bool fAltTab);
}

有什么方法可以将Unity3d带到前台？

3 个答案: