Help Related to CSharp Coding [Help Related to CSharp Coding]

malti — Mon, 12 Jan 2009 07:06:54 GMT

We are getting a Run-Time Error ::

Picturebox of a form is inaccessible by a class due to Protection Level Fault within a Same Application.......

Cud u juz help us to eliminate this error................

Our Code ::

class--Operator.cs

using System;

using System.Drawing;

using System.Drawing.Imaging;

using System.Windows.Forms;

using System.Collections.Generic;

using System.Text;

namespace WindowsApplication7

{

public class Operator

{

private Bitmap bmpimg;

public Operator()

{

}

public void setImage(Bitmap bmp)

{

bmpimg = (Bitmap)bmp.Clone();

// PictureBox1.Image(bmpimg);

}

public Bitmap getImage()

{

return (Bitmap)bmpimg.Clone();

// bmpimg = Form1.pb_color.Image;

}

public void calcHisto(Form1 form)

{

BitmapData data= bmpimg.LockBits(new System.Drawing.Rectangle(0,0,bmpimg.Width,bmpimg.Height),ImageLockMode.ReadWrite,PixelFormat.Format24bppRgb);

unsafe

{

byte* ptr= (byte*)data.Scan0;

int remain=data.Stride - data.Width*3;

int[] histogram =new int[256];

for(int i=0;i<histogram.Length;i++)

{

histogram[i]=0;

}

for(int i=0;i<data.Height;i++)

{

for(int j=0;j<data.Width;j++)

{

int mean=ptr[0]+ptr[1]+ptr[2];

mean=mean/3;

histogram[mean]++;

ptr +=3;

}

ptr +=remain;

}

drawHistogram(histogram , form);

}

bmpimg.UnlockBits(data);

}

public void drawHistogram (int []histogram , Form1 form)

{

Bitmap bmp = new Bitmap (histogram.Length+10, 310);

form.pb_color.Image = bmp;

BitmapData data = bmpimg.LockBits(new System.Drawing.Rectangle(0, 0, bmpimg.Width, bmpimg.Height), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

unsafe

{

byte* ptr = (byte*)data.Scan0;

int remain = data.Stride - data.Width * 3;

for (int i = 0; i < data.Height; i++)

{

for (int j = 0; j < data.Width; j++)

{

ptr[0] = ptr[1] = ptr[2] = 150;

ptr += 3;

}

ptr += remain;

}

int max = 0;

for (int i = 0; i < histogram.Length; i++)

{

if (max < histogram[i])

max = histogram[i];

}

for (int i = 0; i < histogram.Length; i++)

{

ptr = (byte*)data.Scan0;

ptr += data.Stride * (305) + (i + 5) * 3;

int length = (int)(1.0 * histogram[i] * 300 / max);

for (int j = 0; j < length; j++)

{

ptr[0] = 255;

ptr[1] = ptr[2] = 0;

ptr -= data.Stride;

}

bmpimg.UnlockBits(data);

}

form-------------Form1

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

namespace WindowsApplication7

{

public partial class Form1 : Form

{

private Operator processing;

public Form1()

{

InitializeComponent();

processing = new Operator();

}

private void Form1_Load(object sender, EventArgs e)

{

processingToolStripMenuItem.Enabled = false;

saveToolStripMenuItem.Enabled = false;

}

private void grayScaleToolStripMenuItem_Click(object sender, EventArgs e)

{

Bitmap grays = (Bitmap)pb_color.Image;

int width = grays.Size.Width;

int height = grays.Size.Height;

for (int j = 0; j < height; j++)

{

for (int i = 0; i < width; i++)

{

Color col;

col = grays.GetPixel(i, j);

int A = (col.R + col.G + col.B )/ 3;

grays.SetPixel(i, j, Color.FromArgb(A, A, A));

}

pb_color.Image = grays;

MessageBox.Show("PROCESSING COMPLETE!!");

saveToolStripMenuItem.Enabled = true;

}

private void exitToolStripMenuItem1_Click(object sender, EventArgs e)

{

this.Close();

}

private void saveToolStripMenuItem_Click(object sender, EventArgs e)

{

Bitmap b = (Bitmap)pb_color.Image;

SaveFileDialog save = new SaveFileDialog();

save.Filter = "Image Files(*.jpg; *.jpeg; *.gif; *.bmp)|*.jpg; *.jpeg; *.gif; *.bmp";

if (save.ShowDialog() == DialogResult.OK)

{

b.Save(save.FileName);

}

private void binaryToolStripMenuItem_Click(object sender, EventArgs e)

{

int threshold = 220;

Bitmap binary = (Bitmap)pb_color.Image;

int width = binary.Size.Width;

int height = binary.Size.Height;

for (int j = 0; j < height; j++)

{

for (int i = 0; i < width; i++)

{

Color col;

col = binary.GetPixel(i, j);

int A = (col.R + col.G + col.B) / 3;

if (A <= threshold)

{

binary.SetPixel(i, j, Color.FromArgb(0,0,0));

}

else

{

binary.SetPixel(i, j, Color.FromArgb(255,255,255));

}

pb_color.Image = binary;

MessageBox.Show("PROCESSING COMPLETE !!");

saveToolStripMenuItem.Enabled = true;

}

private void openToolStripMenuItem_Click(object sender, EventArgs e)

{

OpenFileDialog open = new OpenFileDialog();

open.Filter = "Image Files(*.jpg; *.jpeg; *.gif; *.bmp)|*.jpg; *.jpeg; *.gif; *.bmp";

if (open.ShowDialog() == DialogResult.OK)

{

pb_color.Image = new Bitmap(open.FileName);

}

processingToolStripMenuItem.Enabled = true;

/*OpenFileDialog filechooser = new OpenFileDialog();

filechooser.RestoreDirectory = true;

if (filechooser.ShowDialog() == DialogResult.OK)

{

pb_color.Image = new Bitmap(new Bitmap(filechooser.FileName), 300, 300);

this.Invalidate();

}

this.processing.setImage(new Bitmap(this.pb_color.Image));

this.Invalidate();*/

}

private void button1_Click_1(object sender, EventArgs e)

{

Form2 frm2 = new Form2();

frm2.Show();

}

private void textBox1_TextChanged(object sender, EventArgs e)

{

}

private void pb_color_Click(object sender, EventArgs e)

{

}

private void histogramToolStripMenuItem_Click(object sender, EventArgs e)

{

this.processing.calcHisto(this);

this.pictureBox1.Image = this.processing.getImage();

this.Invalidate();

}

private void processingToolStripMenuItem_Click(object sender, EventArgs e)

{

}

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Help Related to CSharp Coding [Help Related to CSharp Coding]