控制系统任务栏的自动隐藏与显示代码,CSharp代码库,德仔网

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【CSharp】控制系统任务栏的自动隐藏与显示

作者:dezai / 发布于2014/5/21/ 690


	public struct RECT
	 {
	 public int Left;
	 public int Top;
	 public int Right;
	 public int Bottom;
	 }
	 public struct APPBARDATA
	 {
	 public int cbSize;
	 public int hwnd;
	 public int uCallbackMessage;
	 public int uEdge;
	 public RECT rc;
	 public int lParam;
	 }

	 public const int ABS_ALWAYSONTOP = 0x002;
	 public const int ABS_AUTOHIDE = 0x001;
	 public const int ABS_BOTH = 0x003;
	 public const int ABM_ACTIVATE = 0x006;
	 public const int ABM_GETSTATE = 0x004;
	 public const int ABM_GETTASKBARPOS = 0x005;
	 public const int ABM_NEW = 0x000;
	 public const int ABM_QUERYPOS = 0x002;
	 public const int ABM_SETAUTOHIDEBAR = 0x008;
	 public const int ABM_SETSTATE = 0x00A;

	 ///
	 /// 向系统任务栏发送消息
	 ///
	 [DllImport("shell32.dll")]
	 public static extern int SHAppBarMessage(int dwmsg, ref APPBARDATA app);

	 [DllImport("user32.dll", EntryPoint = "FindWindow")]
	 public static extern int FindWindow(string lpClassName, string lpWindowName);

	 ///
	 /// 设置系统任务栏是否自动隐藏
	 ///
	 ///

	True 设置为自动隐藏，False 取消自动隐藏
	 public static void SetAppBarAutoDisplay(bool IsAuto)
	 {
	 APPBARDATA abd = new APPBARDATA();
	 abd.hwnd = FindWindow("Shell_TrayWnd", "");
	 //abd.lParam = ABS_ALWAYSONTOP Or ABS_AUTOHIDE '自动隐藏,且位于窗口前
	 //abd.lParam = ABS_ALWAYSONTOP '不自动隐藏,且位于窗口前
	 //abd.lParam = ABS_AUTOHIDE '自动隐藏,且不位于窗口前
	 if (IsAuto)
	 {
	 abd.lParam = ABS_AUTOHIDE;
	 SHAppBarMessage(ABM_SETSTATE, ref abd);
	 }
	 else
	 {
	 abd.lParam = ABS_ALWAYSONTOP;
	 SHAppBarMessage(ABM_SETSTATE, ref abd);
	 }
	 }

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　任务栏　

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