在Unity中利用WinAPI实现在任何地方可以拖拽窗体

栗林

于 2016-09-11 19:23:16 发布

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分类专栏： Unity相关

本文链接：https://blog.youkuaiyun.com/u012534774/article/details/52505596

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大概很少有人需要这种需求吧,不废话,贴代码.

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

public class WinAPITest : MonoBehaviour {

    [DllImport("user32.dll")]
    private static extern IntPtr GetActiveWindow();
    [DllImport("user32.dll")]
    public static extern bool ReleaseCapture();
    [DllImport("user32.dll")]
    public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);

    const int WM_SYSCOMMAND = 0x0112;
    const int SC_MOVE = 0xF010;
    const int HTCAPTION = 0x0002;
    IntPtr hwnd;

    void Start() {
        hwnd = GetActiveWindow();
    }

    void Update () {
        ReleaseCapture();
        SendMessage(hwnd, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0);
    }
}