C#

private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            // make sure that the click was in the right column
            if (e.ColumnIndex == 2)
            {
                // Value is given in case the cell is empty
                string cellContent = "0";
                if (this.dataGridView1[e.ColumnIndex, e.RowIndex].Value != null)
                {
                    cellContent = this.dataGridView1[e.ColumnIndex, e.RowIndex].Value.ToString();
                }
                using (InputBox ib = new InputBox("Enter new stock amount:", this.dataGridView1[0, e.RowIndex].Value.ToString(), cellContent))
                {
                    if (ib.ShowDialog() == DialogResult.OK)
                    {
                        this.dataGridView1[e.ColumnIndex, e.RowIndex].Value = ib.Result;
                        cellContent = ib.Result;
                       this.dataGridView1.Controls.Find("btn" + cellValue, true); "THIS IS THE LINE WHERE I WANT TO GET THAT cellFoodTypeValue...
                        
                    }
                }
            }
        } 

private DataGridViewTextBoxColumn ColFoodQtyStock = new DataGridViewTextBoxColumn();
        private DataGridViewTextBoxColumn ColFoodStatus = new DataGridViewTextBoxColumn();

        private void cmdStarters_Click(object sender, EventArgs e)
        {
            OleDbConnectionStringBuilder connBuilder = new OleDbConnectionStringBuilder();
            connBuilder.DataSource = @"C:\Users\AP_AE\Desktop\DTPOS_APP\DataBase\DtposMenu.accdb";
            connBuilder.Provider = "Microsoft.ACE.OLEDB.12.0";
            connBuilder.Add("Jet OLEDB:Engine Type", "5");

            // Food SQL Query
            string foodTypeSql = @"SELECT FoodName, FoodType FROM Food WHERE FoodType = @foodType";
            using (OleDbConnection conn = new OleDbConnection(connBuilder.ConnectionString))
            {
                dataGridView1.Columns.Clear();
                dataGridView1.RowTemplate.Height = 60;
                //====================================\\
                dataGridView1.Visible = true;
                dataGridView2.Visible = false;
                try
                {
                    OleDbCommand foodsCommand = new OleDbCommand(foodTypeSql, conn);
                    OleDbParameter foodType = foodsCommand.Parameters.Add("@foodType", OleDbType.VarChar, 15);
                    OleDbDataAdapter foodsDa = new OleDbDataAdapter(foodsCommand);
                    
                    DataSet ds = new DataSet();
                    conn.Open();
                    foodType.Value = "Starter";
                    foodsDa.Fill(ds, "Food_table");

                    //add extra column structures to dataset
                    ds.Tables["Food_table"].Columns.Add(new DataColumn("Quantity In Stock", System.Type.GetType("System.Int32")));
                    ds.Tables["Food_table"].Columns.Add(new DataColumn("Status", System.Type.GetType("System.String")));
                    //loop through all the rows and add the data to the new columns dynamically
                    for (int i = 0; i < ds.Tables["Food_table"].Rows.Count; i++)
                    {
                        ds.Tables["Food_table"].Rows[i]["Quantity In Stock"] = 0;
                        ds.Tables["Food_table"].Rows[i]["Status"] = "<Always On Stock>";
                    }
                    
                    dataGridView1.DataSource = ds;
                    dataGridView1.DataMember = "Food_table";
                    
                    DataGridViewCellStyle dataGridViewCellStyle1 = new DataGridViewCellStyle();
                    this.dataGridView1.ColumnHeadersDefaultCellStyle = dataGridViewCellStyle1;
                    dataGridViewCellStyle1.Font = new Font("Verdana", 20.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));

                    this.dataGridView1.Columns[0].Width = 420;
                    this.dataGridView1.Columns[1].Width = 180;
                    this.dataGridView1.Columns[2].Width = 300;
                    this.dataGridView1.Columns[3].Width = 308;

                    conn.Close();

                }
                catch (Exception ex)
                {
                    MessageBox.Show("Error: " + ex);
                }
            }
        }

StreamReader parseFile = new StreamReader(@"C:\temp\output.txt");
string fileRead = parseFile.ReadToEnd();
string line;
string year = DateTime.Now.Year.ToString();
while ((line = parseFile.ReadLine()) != null)
{
    int linenumber = 0;
    if (line.EndsWith("(null)") != true)
    {
        linenumber = linenumber + 1;
        Excel.Range range = oSheet.get_Range("A" + linenumber, );
        range.Value2 = line;
    }



}
parseFile.Close();

//(From header file)
//SCANDLL_API int __stdcall WScanSelectBuf(MY_IMAGE *simage_down,MY_IMAGE *simage_up,int select);


//(structure from C++ documentation
typedef struct {
  int width; // image width
  int height; // image height
  int info; // bit-count (1,4,8 bit)
  unsigned char* pbuf; // image buffer
} MY_IMAGE; // defines the image information



//(Use of method in sample C++ code)

MY_IMAGE img1,img2;

img1.width = 864;
img1.height = 3000;
img1.info = 8; // 8bit
img1.pbuf = (UCHAR *)new UCHAR[2*nWidth*nHeight];

img2.width = 864;
img2.height = 3000;
img2.info = 8; // 8bit
img2.pbuf = (UCHAR *)new UCHAR[2*nWidth*nHeight];

ret=WScanSelectBuf(&img1, &img2,0);

---------------------------------------------------------------------
//C# conversion

[StructLayout(LayoutKind.Explicit)]
    public struct MY_IMAGE
    {
        [FieldOffset(0)]
        public int width;

        [FieldOffset(4)]
        public int height;
        
        [FieldOffset(8)]
        public int info;
        
        //[FieldOffset(12)]
        //public byte[] pbuf; // image buffer as byte array???

        //Stuck here? 
        [FieldOffset(12), MarshalAs(UnmanagedType.SysUInt)]
        public IntPtr pbuf; // image buffer
    }

[DllImport("scandll.dll")]
private extern static int WT_ScanSelectBuf(ref MY_IMAGE image_down, ref MY_IMAGE image_up, int select);


public static int ScanSelectBuf(ref MY_IMAGE image_down, ref MY_IMAGE image_up, int select)
{
  return WScanSelectBuf(ref image_down, ref image_up, select);
}

ImageInfo img1 = new ImageInfo();
ImageInfo img2 = new ImageInfo();


int nWidth = 864;
int nHeight = 1000;

img1.width = nWidth;
img1.height = nHeight;
img1.info = 8; // 8bit
//img1.pbuf = new byte[2 *nWidth * nHeight];
//img1.pbuf = IntPtr.Zero;

img2.width = nWidth;
img2.height = nHeight;
img2.info = 8; // 8bit
//img2.pbuf = new byte[2 * nWidth * nHeight];
//img2.pbuf = IntPtr.Zero;

//CRASHES WITH MEMORY ACCESS/CORRUPT ERRORS
ret = ScanSelectBuf(ref img1,ref img2, 0);