Question

好的...所以我有一个漂亮的杀手截屏系统我已经使用了一段时间......它几乎涉及创建一个有点透明的表格，自动调整尺寸以适合所有显示器......这给出了屏幕出现“暗影”效果......然后我有一个隐藏的“按钮”控件，当鼠标按下时设置位置......然后，直到鼠标按下，按钮将实时调整大小创建一种“选择”区域......授予Button完全透明以实现此效果。

来源示例：http://db.tt/LWxfDB6 [也发布于以下]

我相信，我有两个直接相关的问题。

1。）多监视器的坐标关闭，它正确返回点击（突出显示）的坐标，但突出显示框（效果）通常位于错误的监视器上。

2。）你只能从左上角选择---＆gt;右下角而非普遍性。

对不起，如果我没有解释清楚，来源应该解释得更好。提前感谢您收到的任何和所有帮助。：）

：MarkRect.cs：


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Imaging;
using System.IO;

namespace TW_Media_Chat_
{
    public partial class MarkRect : Form
    {
        Point Point1;
        Point Point2;
        public MarkRect()
        {
            InitializeComponent();
            // Programatically maximize to all monitors
            Screen[] Screens = Screen.AllScreens;
            int AllWidth = 0;
            int AllHeight = 0;
            for (int index = 0; index < Screens.Length; index++)
            {
                AllWidth += Screens[index].Bounds.Width;
                AllHeight += Screens[index].Bounds.Height;
            }
            this.Width = AllWidth;
            this.Height = AllHeight;

    }

    private void Transparency_MouseDown(object sender, MouseEventArgs e)
    {
        button1.Visible = true;
        button1.Location = Cursor.Position;
        Point1 = Cursor.Position;
    }
    private void Transparency_MouseUp(object sender, MouseEventArgs e)
    {
        this.Visible = false;
        Point2 = Cursor.Position;
        AjaxChatBridge.AjaxVars.Point1 = Point1;
        AjaxChatBridge.AjaxVars.Point2 = Point2;
        this.Close();
    }

    private void MarkRect_MouseMove(object sender, MouseEventArgs e)
    {
        this.button1.Width = Cursor.Position.X - this.button1.Left;
        this.button1.Height = Cursor.Position.Y - this.button1.Top;
    }
}


}

：MarkRect.Designer.cs：

    }

    private void Transparency_MouseDown(object sender, MouseEventArgs e)
    {
        button1.Visible = true;
        button1.Location = Cursor.Position;
        Point1 = Cursor.Position;
    }
    private void Transparency_MouseUp(object sender, MouseEventArgs e)
    {
        this.Visible = false;
        Point2 = Cursor.Position;
        AjaxChatBridge.AjaxVars.Point1 = Point1;
        AjaxChatBridge.AjaxVars.Point2 = Point2;
        this.Close();
    }

    private void MarkRect_MouseMove(object sender, MouseEventArgs e)
    {
        this.button1.Width = Cursor.Position.X - this.button1.Left;
        this.button1.Height = Cursor.Position.Y - this.button1.Top;
    }
}

Answer 1

您应该更容易实现控件调整大小逻辑：

void MarkRect_MouseMove（...） { var mouseX = Cursor.Position.X; var originalMouseX = Point1.X;
```
button1.Left = Math.Min(mouseX, originalMouseX);
button1.Width = Math.Abs(mouseX - originalMouseX);

// the same for Y
```
}
您应该在此处发布该代码。我们懒得去你的Dropbox看代码。这里有更容易回答的问题。

控制调整数学的大小

1 个答案: