using System;
using System.Drawing;
using System.Drawing.Printing;
using System.Windows.Forms;
using System.Runtime.InteropServices;
 
namespace PrintForm
{
    public class PrintForm
    {
        Form form;
        Bitmap bmp;
        int x=0; int y=0;
        int width=0; int height=0;
 
        public PrintForm(Form form) {this.form = form;}
 
        public void Print() {Print(0, 0);}
 
        public void Print(int x, int y)
        {
            this.x = x; this.y = y;
            width = form.ClientSize.Width;
            height = form.ClientSize.Height;
            bmp = GetFormBitmap();
 
            //create new PrintDocument object
            //and assign a method for the PrintPage event
            PrintDocument pd = new PrintDocument();
            pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);
            pd.Print();
        }
 
        private void pd_PrintPage(object sender, 
            System.Drawing.Printing.PrintPageEventArgs e) 
        {
            //Graphics object for the current printer
            e.Graphics.DrawImage(bmp, x, y, width, height);
        }
 
        private Bitmap GetFormBitmap() 
        {    //creates new Bitmap object containing 
            //the image of the form
            const int SRCCOPY = 0xcc0020;
 
            //create Graphics objects for the form
            Graphics gg = form.CreateGraphics();
            IntPtr formhdc = gg.GetHdc();
 
            //create new Bitmap object
            Bitmap bmp = new Bitmap(width, height);
            Graphics g = Graphics.FromImage(bmp);
            IntPtr bmphdc = g.GetHdc();
 
            //copy the bitmap data of the form to the new Bitmap
            BitBlt(bmphdc, 0, 0, width, height, 
                formhdc, 0, 0, SRCCOPY);
 
            //the hdc of Bitmap object must be released 
            //before sending this object to print
            g.ReleaseHdc(bmphdc);
            gg.ReleaseHdc(formhdc);
 
            return bmp;
        }
 
        [DllImport("gdi32.dll")]
        static extern bool BitBlt(IntPtr hdc, int nXDest, 
            int nYDest, int nWidth, int nHeight, 
            IntPtr hdcSrc, int nXSrc, int nYSrc, uint dwRop);
 
    }
}