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c#rotationimage-rotation

How can I flip/rotate the label in C#/Windows Forms?


How can I flip/rotate the label in C# Windows Forms?

I set the background image to my label.

At every time interval it moves three pixels to the right side. When it reaches the form end position I need the label to be flipped and turned back.

I have tried the following way, but I didn't get the solution.

private void timer1_Tick(object sender, EventArgs e){

    if (label2.Location.X < this.Width)
        label2.Location = new Point(label2.Location.X + incr, label2.Location.Y);
    else
    {
        incr = -2;
        label2.Location = new Point(label2.Location.X - 50, label2.Location.Y);
        label1.Image.RotateFlip();
    }
    this.Refresh();
}

Solution

  • Create a class, newlabel, which can rotate its Text on any angle specified by the user.

    extend label class& override paint method
    

    You can use it by code or simply dragging from the ToolBox.

    using System.Drawing;
    
    class newLabel : System.Windows.Forms.Label
    {
        public int RotateAngle { get; set; }  
        public string NewText { get; set; }   
        protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
        {
            Brush b =new SolidBrush(this.ForeColor);           
            e.Graphics.TranslateTransform(this.Width / 2, this.Height / 2);
            e.Graphics.RotateTransform(this.RotateAngle);
            e.Graphics.DrawString(this.NewText, this.Font,b , 0f, 0f);
            base.OnPaint(e);
        }
    }
    

    Now drag this custom control to be used into your form.

    You have to set the below properties.

    newlbl.Text = "";           
    newlbl.AutoSize = false;      
    newlbl.NewText = "ravindra";     
    newlbl.ForeColor = Color.Green;  
    newlbl.RotateAngle = -90; 
    

    Change angle as required by simply changing the RotateAngle property.