Hi Inside this you have to initialize your event right click on InitializeComponent() method -> go to definition and copy and paste event handler
public Form1()
{
InitializeComponent();
}
this.pictureBox1.MouseClick += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseClick);
this.pic.MouseClick += new System.Windows.Forms.MouseEventHandler(this.pic_MouseClick);