WPF C# 常用操作

来源：互联网发布：电脑内存条检测软件编辑：程序博客网时间：2024/05/10 16:16

获取鼠标位置

private void button2_Click(object sender, RoutedEventArgs e)//获取位置
        {
            POINT p = new POINT();

            Point pp = Mouse.GetPosition(e.Source as FrameworkElement);//WPF方法
            Point ppp = (e.Source as FrameworkElement).PointToScreen(pp);//WPF方法

            if (GetCursorPos(out p))//API方法
            {
                MessageBox.Show(string.Format("GetCursorPos {0},{1} GetPosition {2},{3}\r\n {4},{5}", p.X, p.Y, pp.X, pp.Y, ppp.X, ppp.Y));
            }
        }

        /// <summary>
        /// 设置鼠标的坐标
        /// </summary>
        /// <param name="x">横坐标</param>
        /// <param name="y">纵坐标</param>
        [DllImport("User32")]
        public extern static void SetCursorPos(int x, int y);
        public struct POINT
        {
            public int X;
            public int Y;
            public POINT(int x, int y)
            {
                this.X = x;
                this.Y = y;
            }
        }

        /// <summary>
        /// 获取鼠标的坐标
        /// </summary>
        /// <param name="lpPoint">传址参数，坐标point类型</param>
        /// <returns>获取成功返回真</returns>
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern bool GetCursorPos(out POINT pt);

屏幕大小

double width = SystemParameters.PrimaryScreenWidth;

double height = SystemParameters.PrimaryScreenHeight;

字符串全半角转换

/// <summary>
/// 转全角的函数(SBC case)
/// </summary>
/// <param name="input">任意字符串 </param>
/// <returns>全角字符串 </returns>
/// <remarks>
///全角空格为12288，半角空格为32
///其他字符半角(33-126)与全角(65281-65374)的对应关系是：均相差65248
/// </remarks>
public static string ToSBC(string input)
{
//半角转全角：
char[] c = input.ToCharArray();
for (int i = 0; i < c.Length; i++)
{
if (c[i] == 32)
{
c[i] = (char)12288;
continue;
}
if (c[i] < 127)
c[i] = (char)(c[i] + 65248);
}
return new string(c);
}

/// <summary>
/// 转半角的函数(DBC case)
/// </summary>
/// <param name="input">任意字符串 </param>
/// <returns>半角字符串 </returns>
/// <remarks>
///全角空格为12288，半角空格为32
///其他字符半角(33-126)与全角(65281-65374)的对应关系是：均相差65248
/// </remarks>
public static string ToDBC(string input)
{
char[] c = input.ToCharArray();
for (int i = 0; i < c.Length; i++)
{
if (c[i] == 12288)
{
c[i] = (char)32;
continue;
}
if (c[i] > 65280 && c[i] < 65375)
c[i] = (char)(c[i] - 65248);
}
return new string(c);
}