控制调整数学大小

Question

好吧...所以我已经有了这个非常杀手级的屏幕截图系统，我已经使用了一段时间了...它几乎涉及创建一个有点透明的表单，可以自动调整大小以适合所有显示器...这给出了屏幕（ s）“暗出”效果...然后，我有一个隐藏的“按钮”控件，其位置是在鼠标按下时设置的...然后，直到鼠标向上，按钮将实时调整大小以创建一个某种“选择”区域...按钮被授予完全透明以实现此效果。

源示例： http://db.tt/LWxfDB6 [也在下面发布]

我遇到了两个问题我相信，直接相关。

1.）多显示器的坐标关闭，它正确返回单击（突出显示）的坐标，但突出显示框（效果）通常位于错误的显示器上。

2.) 您只能从左上角选择--->右下角且不通用。

抱歉，如果我没有解释清楚，来源应该解释得更好。 预先感谢您收到的所有帮助。 :)

: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;


命名空间 TW_Media_Chat_
{
    公共部分类 MarkRect ：表单
    {
        点点1；
        点2；
        公共马克矩形（）
        {
            初始化组件();
            // 以编程方式最大化所有监视器
            Screen[] Screens = Screen.AllScreens;
            int 全部宽度 = 0;
            int 全部高度 = 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：

namespace TW_Media_Chat_
{
    partial class MarkRect
    {
        /// 
        /// Required designer variable.
        /// 
        private System.ComponentModel.IContainer components = null;


    /// <summary>
    /// Clean up any resources being used.
    /// </summary>
    /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
    protected override void Dispose(bool disposing)
    {
        if (disposing && (components != null))
        {
            components.Dispose();
        }
        base.Dispose(disposing);
    }

    #region Windows Form Designer generated code

    /// <summary>
    /// Required method for Designer support - do not modify
    /// the contents of this method with the code editor.
    /// </summary>
    private void InitializeComponent()
    {
        this.button1 = new System.Windows.Forms.Button();
        this.SuspendLayout();
        // 
        // button1
        // 
        this.button1.BackColor = System.Drawing.Color.Lime;
        this.button1.ForeColor = System.Drawing.Color.Lime;
        this.button1.Location = new System.Drawing.Point(220, 172);
        this.button1.Name = "button1";
        this.button1.Size = new System.Drawing.Size(19, 18);
        this.button1.TabIndex = 0;
        this.button1.Text = "button1";
        this.button1.UseVisualStyleBackColor = false;
        this.button1.Visible = false;
        // 
        // MarkRect
        // 
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.BackColor = System.Drawing.Color.Black;
        this.ClientSize = new System.Drawing.Size(490, 406);
        this.Controls.Add(this.button1);
        this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
        this.Name = "MarkRect";
        this.Opacity = 0.5D;
        this.Text = "Transparency";
        this.TopMost = true;
        this.TransparencyKey = System.Drawing.Color.Lime;
        this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.Transparency_MouseDown);
        this.MouseMove += new System.Windows.Forms.MouseEventHandler(this.MarkRect_MouseMove);
        this.MouseUp += new System.Windows.Forms.MouseEventHandler(this.Transparency_MouseUp);
        this.ResumeLayout(false);

    }

    #endregion

    private System.Windows.Forms.Button button1;
}


}

Answer 1

1. 您应该更容易地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);
   
   // Y 也一样
   

   }

2. 您应该在此处发布该代码。我们懒得去您的保管箱查看代码。这里有更简单的问题需要回答。