C#_鼠标拖放图片透明缩略图效果实现思路一.doc

C# 鼠标拖放透明缩略图实现思路一 vs2005 winform提示一下如果使用的是wpf就没有必要使用这个了，那个前台的动画要好的多。大家都知道.net是不支持拖放图效果的，本思路通过.net窗体来实现拖放过程中显示所拖放图片的缩略图效果。代码贴出来了，供大家参考，算是一种思路吧。partial class Form1 / / 必需的设计器变量。 / private System.ComponentModel.IContainer components = null; / / 清理所有正在使用的资源。 / / 如果应释放托管资源，为 true；否则为 false。 protected override void Dispose(bool disposing) if (disposing & (components != null) components.Dispose(); base.Dispose(disposing); #region Windows 窗体设计器生成的代码 / / 设计器支持所需的方法 - 不要 / 使用代码编辑器修改此方法的内容。 / private void InitializeComponent() System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1); this.pictureBox1 = new System.Windows.Forms.PictureBox(); this.pictureBox2 = new System.Windows.Forms.PictureBox(); this.pictureBox3 = new System.Windows.Forms.PictureBox(); this.pictureBox4 = new System.Windows.Forms.PictureBox(); this.pictureBox5 = new System.Windows.Forms.PictureBox(); this.pictureBox6 = new System.Windows.Forms.PictureBox(); (System.ComponentModel.ISupportInitialize)(this.pictureBox1).BeginInit(); (System.ComponentModel.ISupportInitialize)(this.pictureBox2).BeginInit(); (System.ComponentModel.ISupportInitialize)(this.pictureBox3).BeginInit(); (System.ComponentModel.ISupportInitialize)(this.pictureBox4).BeginInit(); (System.ComponentModel.ISupportInitialize)(this.pictureBox5).BeginInit(); (System.ComponentModel.ISupportInitialize)(this.pictureBox6).BeginInit(); this.SuspendLayout(); / / pictureBox1 / this.pictureBox1.Image = (System.Drawing.Image)(resources.GetObject(pictureBox1.Image); this.pictureBox1.Location = new System.Drawing.Point(14, 12); this.pictureBox1.Name = pictureBox1; this.pictureBox1.Size = new System.Drawing.Size(159, 126); this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage; this.pictureBox1.TabIndex = 0; this.pictureBox1.TabStop = false; / / pictureBox2 / this.pictureBox2.Image = (System.Drawing.Image)(resources.GetObject(pictureBox2.Image); this.pictureBox2.Location = new System.Drawing.Point(204, 12); this.pictureBox2.Name = pictureBox2; this.pictureBox2.Size = new System.Drawing.Size(178, 126); this.pictureBox2.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage; this.pictureBox2.TabIndex = 1; this.pictureBox2.TabStop = false; / / pictureBox3 / this.pictureBox3.Image = (System.Drawing.Image)(resources.GetObject(pictureBox3.Image); this.pictureBox3.Location = new System.Drawing.Point(401, 12); this.pictureBox3.Name = pictureBox3; this.pictureBox3.Size = new System.Drawing.Size(216, 126); this.pictureBox3.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage; this.pictureBox3.TabIndex = 2; this.pictureBox3.TabStop = false; this.pictureBox3.MouseMove += new System.Windows.Forms.MouseEventHandler(this.pictureBox3_MouseMove); this.pictureBox3.MouseDown += new System.Windows.Forms.MouseEventHandler(this.pictureBox3_MouseDown); / / pictureBox4 / this.pictureBox4.Image = (System.Drawing.Image)(resources.GetObject(pictureBox4.Image); this.pictureBox4.Location = new System.Drawing.Point(14, 188); this.pictureBox4.Name = pictureBox4; this.pictureBox4.Size = new System.Drawing.Size(159, 126); this.pictureBox4.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage; this.pictureBox4.TabIndex = 3; this.pictureBox4.TabStop = false; / / pictureBox5 / this.pictureBox5.Image = (System.Drawing.Image)(resources.GetObject(pictureBox5.Image); this.pictureBox5.Location = new System.Drawing.Point(204, 187); this.pictureBox5.Name = pictureBox5; this.pictureBox5.Size = new System.Drawing.Size(178, 126); this.pictureBox5.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage; this.pictureBox5.TabIndex = 4; this.pictureBox5.TabStop = false; / / pictureBox6 / this.pictureBox6.Image = (System.Drawing.Image)(resources.GetObject(pictureBox6.Image); this.pictureBox6.Location = new System.Drawing.Point(401, 188); this.pictureBox6.Name = pictureBox6; this.pictureBox6.Size = new System.Drawing.Size(216, 126); this.pictureBox6.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage; this.pictureBox6.TabIndex = 5; this.pictureBox6.TabStop = false; / / Form1 / this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.ClientSize = new System.Drawing.Size(630, 318); this.Controls.Add(this.pictureBox6); this.Controls.Add(this.pictureBox5); this.Controls.Add(this.pictureBox4); this.Controls.Add(this.pictureBox3); this.Controls.Add(this.pictureBox2); this.Controls.Add(this.pictureBox1); this.Name = Form1; this.Text = Form1; (System.ComponentModel.ISupportInitialize)(this.pictureBox1).EndInit(); (System.ComponentModel.ISupportInitialize)(this.pictureBox2).EndInit(); (System.ComponentModel.ISupportInitialize)(this.pictureBox3).EndInit(); (System.ComponentModel.ISupportInitialize)(this.pictureBox4).EndInit(); (System.ComponentModel.ISupportInitialize)(this.pictureBox5).EndInit(); (System.ComponentModel.ISupportInitialize)(this.pictureBox6).EndInit(); this.ResumeLayout(false); #endregion private System.Windows.Forms.PictureBox pictureBox1; private System.Windows.Forms.PictureBox pictureBox2; private System.Windows.Forms.PictureBox pictureBox3; private System.Windows.Forms.PictureBox pictureBox4; private System.Windows.Forms.PictureBox pictureBox5; private System.Windows.Forms.PictureBox pictureBox6;public partial class Form1 : Form public Form1() InitializeComponent(); int x = 0; int y = 0; Form2 objFrm=null; private void pictureBox3_MouseDown(object sender, MouseEventArgs e) int intTemp = Cursor.Position.X; x = e.X; y = e.Y; int xl = Cursor.Position.X ; int yl = Cursor.Position.Y; objFrm = new Form2(pictureBox3.Image); objFrm.Top = xl; objFrm.Left = yl-e.X; objFrm.Visible = false; objFrm.Show(); private void pictureBox3_MouseMove(object sender, MouseEventArgs e) if (e.Button = MouseButtons.Left) objFrm.Visible = true; objFrm.Location=new Point(Cursor.Position.X,Cursor.Position.Y); partial class Form2 / / 必需的设计器变量。 / private System.ComponentModel.IContainer components = null; / / 清理所有正在使用的资源。 / / 如果应释放托管资源，为 true；否则为 false。 protected override void Dispose(bool disposing) if (disposing & (components != null) components.Dispose(); base.Dispose(disposing); #region Windows 窗体设计器生成的代码 / / 设计器支持所需的方法 - 不要 / 使用代码编辑器修改此方法的内容。 / private void InitializeComponent() this.SuspendLayout(); / / Form2 / this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.ClientSize = new System.Drawing.Size(42, 54); this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None; this.Name = Form2; this.Opacity = 0.7; this.Text = Form2; this.TopMost = true; this.ResumeLayout(false); #endregionpublic partial class Form2 : Form Image objImage; public Form2(Image objImageTemp) InitializeComponent(); this.MouseDown += new MouseEventHandler(Form2_MouseDown); this.MouseMove += new MouseEventHandler(Form2_MouseMove); this.MouseUp +=