//窗口样式

[DllImport("user32.dll")]

static extern IntPtr SetWindowLong(IntPtr hwnd, int _nIndex, int dwNewLong);

//窗口分辨率和位置

[DllImport("user32.dll")]

static extern bool SetWindowPos(IntPtr hWnd, int hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);

//获取当前激活窗口

[DllImport("user32.dll", EntryPoint = "GetForegroundWindow")]

static extern IntPtr GetForegroundWindow();

[DllImport("user32.dll")]

static extern IntPtr FindWindow(string strClassName, int nptWindowName);

//窗口拖动

[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", SetLastError = true)]

//得到窗口的样式

private static extern int GetWindowLong(IntPtr hWnd, int nIndex);

[DllImport("user32.dll")]

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

//获取窗口位置以及大小

[DllImport("user32.dll")]

[return: MarshalAs(UnmanagedType.Bool)]

public static extern bool GetWindowRect(IntPtr hWnd, ref RECT lpRect);

[StructLayout(LayoutKind.Sequential)]

使用的参数

private const int SWP_SHOWWINDOW = 0x0040;

//边框样式

private const int GWL_STYLE = -16;

private const int GWL_EXSTYLE = -20;

//窗口有细线边框

private const int WS_BORDER = 1;

//窗口有一个最大化按钮

private const int WS_MAXIMIZEBOX = 0x00010000;

//窗口有一个最小化按钮

private const int WS_MINIMIZEBOX = 0x00020000;

//窗口是一个重叠窗口。重叠窗口有标题栏和边框。

private const int WS_OVERLAPPED = 0x00000000;

//有标题栏

private const int WS_TILEDWINDOW = (WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX);

//隐藏标题栏图标

private const int WS_POPUP = 0x800000;

//窗口的标题栏上有一个窗口菜单。也必须指定ws_CAPTION样式。

private const int WS_SYSMENU = 0x80000;

//最大最小化

private const int SW_SHOWMINIMIZED = 2;//(最小化窗口)

private const int SW_SHOWMAXIMIZED = 3;//最大化窗口

//去除标题栏保留边框

private const int WS_CAPTION = 0x00C00000;

private const int WS_THICKFRAME = 0x00040000;

无标题栏窗口分辨率修改

/// <summary>

/// 隐藏标题栏修改分辨率

/// </summary>

/// <param name="winWidth"></param>

/// <param name="winHeight"></param>

/// <param name="winPosX"></param>

/// <param name="winPosY"></param>

void ChangeScreenSizeHide(int winWidth, int winHeight, int winPosX, int winPosY)

if (titleBarStyles== TitleBarStyles.Show)

//去除标题栏（不可拖拽缩放）；一定要加SetWindowPos（）设置才会立即生效

SetWindowLong(GetForegroundWindow(), GWL_STYLE, WS_POPUP);

//去除标题栏（可拖拽缩放）

//SetWindowLong(GetForegroundWindow(), GWL_STYLE, GetWindowLong(GetForegroundWindow(), GWL_STYLE) & ~WS_CAPTION | WS_THICKFRAME);

ChangeScreenSize(winWidth, winHeight, winPosX, winPosY);

titleBarStyles = TitleBarStyles.Hide;

有标题栏窗口分辨率修改

//不隐藏标题栏修改分辨率

void ChangeScreenSizeShow(int winWidth, int winHeight, int winPosX, int winPosY)

if (titleBarStyles == TitleBarStyles.Hide)

SetWindowLong(GetForegroundWindow(), GWL_STYLE, GetWindowLong(GetForegroundWindow(), GWL_STYLE) | WS_TILEDWINDOW);

ChangeScreenSize(winWidth, winHeight, winPosX, winPosY);

titleBarStyles = TitleBarStyles.Show;

窗口最大化

/// <summary>

/// 窗口最大化

/// </summary>

public void SetMaxWindows()

int currMaxScreenHeight = Screen.currentResolution.height - GetTaskBarHeight();

SetWindowPos(GetForegroundWindow(), 0, 0, 0, Screen.currentResolution.width, currMaxScreenHeight, SWP_SHOWWINDOW);

/// <summary>

/// 获取任务栏高度

/// </summary>

/// <returns>任务栏高度</returns>

private int GetTaskBarHeight()

int taskbarHeight = 0;

IntPtr hWnd = FindWindow("Shell_TrayWnd", 0);

RECT rect = new RECT();

GetWindowRect(hWnd, ref rect);

taskbarHeight = (int)rect.Bottom - (int)rect.Top;

Debug.Log(taskbarHeight);

return taskbarHeight;

窗口最小化

/// <summary>

/// 最小化窗口

/// </summary>

public void SetMinWindows()

ShowWindow(GetForegroundWindow(), SW_SHOWMINIMIZED);

/// <summary>

/// 拖动窗口

/// </summary>

/// <param name="window">当前句柄</param>

public void DragWindow()

ReleaseCapture();

SendMessage(GetForegroundWindow(), 0xA1, 0x02, 0);

SendMessage(GetForegroundWindow(), 0x0202, 0, 0);

/// <summary>

/// 全屏

/// </summary>

public void SetFullScreen()

ShowWindow(GetForegroundWindow(), SW_SHOWMAXIMIZED);