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  • C#:使用Window自带函数(如:user32.dll)

            [DllImport("user32.dll", EntryPoint = "GetScrollInfo", CallingConvention = CallingConvention.StdCall)]
            public static extern bool GetScrollInfo(IntPtr hwnd, int fnBar, ref SCROLLINFO lpsi);
    
            [DllImport("user32.dll", EntryPoint = "SetScrollInfo", CallingConvention = CallingConvention.StdCall)]
            public static extern int SetScrollInfo(IntPtr hwnd, int fnBar, [In] ref SCROLLINFO lpsi, bool fRedraw);
    
            [DllImport("User32.dll", CharSet = CharSet.Auto, EntryPoint = "SendMessage", CallingConvention =CallingConvention.Cdecl)]
            static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);
    
            [DllImport("user32.dll", CharSet = CharSet.Auto, EntryPoint = "PostMessage")]  
            public static extern bool PostMessage(IntPtr hWnd, uint Msg, int wParam, int lParam);
    
            [DllImport("gdi32.dll")]
            public static extern int CreateRoundRectRgn(int x1, int y1, int x2, int y2, int x3, int y3);
    
            [DllImport("user32.dll")]
            public static extern int SetWindowRgn(IntPtr hwnd, int hRgn, Boolean bRedraw);
    
            [DllImport("user32.dll")]
            [return: MarshalAs(UnmanagedType.Bool)]
            public static extern bool ShowScrollBar(IntPtr hWnd, int wBar, bool bShow);
    
            [DllImport("user32.dll")]
            public static extern IntPtr GetWindowDC(IntPtr hWnd);
    
            [DllImport("user32.dll")]
            public static extern int ReleaseDC(IntPtr hWnd, IntPtr hDC);
    
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  • 原文地址:https://www.cnblogs.com/shenchao/p/3782436.html
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