Kompilasi Program CSharp dengan Banyak File

Program yang besar biasanya terdiri atas banyak file. Begitu juga jika kita membuat program untuk menyelesaikan sebuah permasalahan atau membuat sistem informasi management biasanya akan terdiri atas banyak file. Terus bagaimana cara mengkompilasi file-file tersebut sehingga membentuk satu program executable yang langsung bisa dijalankan ?

Program Sistem Informasi biasanya diawali dengan Form login, dilanjutkan dengan Form Utama. Form Utama ini akan memiliki banyak menu yang setiap menu nya bisa jadi akan menjalankan satu form. Sehingga satu program ini akan terdiri atas sejumlah form. Dengan asumsi masing-masing form tersebut diwujudkan dalam satu file maka kita akan memiliki banyak file yang harus dikompilasi dan menghasilkan satu program exe.

Untuk anda yang pernah menggunakan visual basic versi sebelumnya, biasanya kita bisa menjalankan program dari sub main. Sub main ini biasanya ada dalam file module. Nah untuk C# sebenarnya ada yang juga bisa kita sebut dengan sub main ini. di C# ini ada public static void Main() yang berfungsi hampir sama dengan sub main. Fungsi Main ini adalah awal dimana program akan dijalankan.

Hubungannya adalah kita akan mencoba memisahkan Fungsi Main ini dalam file sendiri dan form class yang kita buat dalam file yang terpisah, dan mencoba untuk mengkompilasi dua file ini menjadi satu program exe. Yang akan kita buat sebagai contoh adalah program PhotoResizer dalam proyek I.

Kadang kita juga perlu untuk menambahkan sebuah About box. Isi dari Form About ini adalah menerangkan tentang aplikasi dan keterangannya. Keterangan-keterangan yang ada di form about ini biasanya ada nama aplikasi, versi, pembuat, dan juga bisa ditambahkan dengan keterangan-keterangan lain.

Hasil dari ini semua adalah kita akan memiliki 3 buah file yaitu PhotoResizer.cs, Utama.cs, About.cs. PhotoResizer.cs berisi rutin-rutin seperti yang ada dalam proyek I. Utama.cs merupakan pemisahan fungsi Main dari file PhotoResizer.cs. Sedangkan About.cs adalah file form baru yang akan berisi keterangan tentang nama aplikasi, versi, dan keterangan tambahan lain.

Perintah yang perlu dilakukan adalah sebagai berikut:

c:\>csc.exe /target:winexe /out:PhotoResizer.exe Utama.cs About.cs PhotoResizer.cs

Dalam perintah di atas ada /out: itu adalah untuk memastikan bahwa hasil output dari kompilasi akan menjadi PhotoResizer.exe. Kalau tidak dispesifikasikan hasil output maka nama exe file akan sesuai dengan nama file yang berisi fungsi Main, dalam hal ini adalah Utama.cs. Sehingga jika tidak diberi opsi /out maka hasil nya akan menjadi Utama.exe.

Untuk memudahkan pembaca, berikut saya sertakan masing-masing filenya:

1. Utama.cs

using System;
using System.Windows.Forms;

public static class Utama {

  public static void Main()
  {
     Application.EnableVisualStyles();
     Application.SetCompatibleTextRenderingDefault(false);
     PhotoResizer p ;
     p = new PhotoResizer();
     Application.Run(p);        
  }
}

2. About.cs

using System;
using System.Windows.Forms;
using System.Drawing;

public class About : Form
{
  private System.Windows.Forms.Label label1;
  private System.Windows.Forms.Label label2;
  private System.Windows.Forms.Label label3;
  private System.Windows.Forms.Label label4;
  private System.Windows.Forms.Button btnClose;

  public About()
  {
    label1 = new System.Windows.Forms.Label();
    label2 = new System.Windows.Forms.Label();
    label3 = new System.Windows.Forms.Label();
    label4 = new System.Windows.Forms.Label();
    btnClose = new System.Windows.Forms.Button();
    // 
    // label1
    // 
    label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 27.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
    label1.Location = new System.Drawing.Point(12, 9);
    label1.Size = new System.Drawing.Size(255, 42);
    label1.TabIndex = 0;
    label1.Text = "PhotoResizer";
    // 
    // label2
    // 
    label2.Location = new System.Drawing.Point(16, 51);
    label2.Size = new System.Drawing.Size(48, 13);
    label2.TabIndex = 1;
    label2.Text = "Versi 1.0";
    // 
    // label3
    // 
    label3.Location = new System.Drawing.Point(16, 73);
    label3.Size = new System.Drawing.Size(248, 48);
    label3.TabIndex = 2;
    label3.Text = "Aplikasi untuk menurunkan resolusi gambar, sehingga bisa didapat ukuran file gamb" +
        "ar yang optimal untuk bisa di upload ke website.";
    // 
    // label4
    // 
    label4.Location = new System.Drawing.Point(19, 125);
    label4.Size = new System.Drawing.Size(162, 13);
    label4.TabIndex = 3;
    label4.Text = "http://abcsharpind.blogspot.com";
    // 
    // btnClose
    // 
    btnClose.Location = new System.Drawing.Point(192, 146);
    btnClose.Size = new System.Drawing.Size(75, 23);
    btnClose.TabIndex = 4;
    btnClose.Text = "Tutup";
    btnClose.Click += new System.EventHandler(btnClose_Click);
    // 
    // Form3
    // 
    Size = new System.Drawing.Size(280, 210);
    ControlBox = false;
    Controls.Add(btnClose);
    Controls.Add(label4);
    Controls.Add(label3);
    Controls.Add(label2);
    Controls.Add(label1);
    Text = "About PhotoResizer";
  }
  
  private void btnClose_Click(object sender, EventArgs e)
  {
      Close();
  }  
}

3. PhotoResizer.cs

using System;
using System.Windows.Forms;
using System.Drawing;

public class PhotoResizer : Form 
{
  //Deklarasi
  private System.Windows.Forms.Label label1;
  private System.Windows.Forms.Label label2;
  private System.Windows.Forms.Label label3;
  private System.Windows.Forms.Label label4;
  private System.Windows.Forms.Label label5;
  private System.Windows.Forms.Label label6;
  private System.Windows.Forms.Label label7;
  private System.Windows.Forms.Label label8;
  private System.Windows.Forms.Label label9;
  private System.Windows.Forms.Label label10;

  private System.Windows.Forms.GroupBox groupBox1;
  private System.Windows.Forms.GroupBox groupBox2;
  private System.Windows.Forms.GroupBox groupBox3;
  private System.Windows.Forms.GroupBox groupBox4;

  private System.Windows.Forms.TextBox txtFotoAsal;
  private System.Windows.Forms.TextBox txtFotoTujuan;
  private System.Windows.Forms.Button btnAmbil;
  private System.Windows.Forms.TextBox txtAsalTinggi;
  private System.Windows.Forms.TextBox txtAsalLebar;
  private System.Windows.Forms.TextBox txtAsalUkuran;
  private System.Windows.Forms.TextBox txtTujuanTinggi;
  private System.Windows.Forms.TextBox txtTujuanLebar;
  private System.Windows.Forms.TextBox txtTujuanUkuran;
  private System.Windows.Forms.ComboBox cbInterpolasi;
  private System.Windows.Forms.ComboBox cbPenghalusan;

  private System.Windows.Forms.Button btnSelesai;
  private System.Windows.Forms.Button btnProses;
  private System.Windows.Forms.Button btnAbout;

  private System.Windows.Forms.ProgressBar progressBar1;
  public PhotoResizer()
  {
    InitComponent();
  }
  
  private void InitComponent()
  {
    label1 = new System.Windows.Forms.Label();
    label2 = new System.Windows.Forms.Label();
    label3 = new System.Windows.Forms.Label();
    label4 = new System.Windows.Forms.Label();
    label5 = new System.Windows.Forms.Label();
    label6 = new System.Windows.Forms.Label();
    label7 = new System.Windows.Forms.Label();
    label8 = new System.Windows.Forms.Label();
    label9 = new System.Windows.Forms.Label();
    label10 = new System.Windows.Forms.Label();

    txtFotoAsal = new System.Windows.Forms.TextBox();
    txtFotoTujuan = new System.Windows.Forms.TextBox();
    btnAmbil = new System.Windows.Forms.Button();

    groupBox1 = new System.Windows.Forms.GroupBox();
    txtAsalUkuran = new System.Windows.Forms.TextBox();
    txtAsalLebar = new System.Windows.Forms.TextBox();
    txtAsalTinggi = new System.Windows.Forms.TextBox();

    groupBox2 = new System.Windows.Forms.GroupBox();
    txtTujuanTinggi = new System.Windows.Forms.TextBox();
    txtTujuanLebar = new System.Windows.Forms.TextBox();
    txtTujuanUkuran = new System.Windows.Forms.TextBox();

    groupBox3 = new System.Windows.Forms.GroupBox();
    cbPenghalusan = new System.Windows.Forms.ComboBox();
    cbInterpolasi = new System.Windows.Forms.ComboBox();

    groupBox4 = new System.Windows.Forms.GroupBox();
    progressBar1 = new System.Windows.Forms.ProgressBar();
    btnProses = new System.Windows.Forms.Button();
    btnSelesai = new System.Windows.Forms.Button();
    btnAbout = new System.Windows.Forms.Button();
    // 
    // label1
    // 
    label1.Location = new System.Drawing.Point(13, 5);
    label1.Size = new System.Drawing.Size(77, 13);
    label1.TabIndex = 0;
    label1.Text = "File Photo Asal";
    // 
    // label2
    // 
    label2.Location = new System.Drawing.Point(13, 31);
    label2.Size = new System.Drawing.Size(66, 13);
    label2.TabIndex = 0;
    label2.Text = "Disimpan Ke";
    // 
    // txtFotoAsal
    // 
    txtFotoAsal.Location = new System.Drawing.Point(119, 5);
    txtFotoAsal.ReadOnly = true;
    txtFotoAsal.Size = new System.Drawing.Size(341, 20);
    txtFotoAsal.TabIndex = 1;
    // 
    // txtFotoTujuan
    // 
    txtFotoTujuan.Location = new System.Drawing.Point(119, 31);
    txtFotoTujuan.Size = new System.Drawing.Size(425, 20);
    txtFotoTujuan.TabIndex = 1;
    // 
    // btnAmbil
    // 
    btnAmbil.Location = new System.Drawing.Point(469, 5);
    btnAmbil.Size = new System.Drawing.Size(75, 23);
    btnAmbil.TabIndex = 0;
    btnAmbil.Text = "Ambil";
    // 
    // groupBox1
    // 
    groupBox1.Controls.Add(label3);
    groupBox1.Controls.Add(label4);
    groupBox1.Controls.Add(label5);
    groupBox1.Controls.Add(txtAsalUkuran);
    groupBox1.Controls.Add(txtAsalLebar);
    groupBox1.Controls.Add(txtAsalTinggi);
    groupBox1.Location = new System.Drawing.Point(16, 61);
    groupBox1.Size = new System.Drawing.Size(261, 96);
    groupBox1.TabIndex = 3;
    groupBox1.TabStop = false;
    groupBox1.Text = "Informasi File Asal";
    // 
    // label3
    // 
    label3.Location = new System.Drawing.Point(7, 20);
    label3.Size = new System.Drawing.Size(96, 13);
    label3.TabIndex = 0;
    label3.Text = "Ukuran File (Bytes)";
    // 
    // txtAsalUkuran
    // 
    txtAsalUkuran.Location = new System.Drawing.Point(121, 20);
    txtAsalUkuran.ReadOnly = true;
    txtAsalUkuran.Size = new System.Drawing.Size(134, 20);
    txtAsalUkuran.TabIndex = 1;
    txtAsalUkuran.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
    // 
    // label4
    // 
    label4.Location = new System.Drawing.Point(7, 46);
    label4.Size = new System.Drawing.Size(95, 13);
    label4.TabIndex = 0;
    label4.Text = "Lebar Foto (Piksel)";
    // 
    // txtAsalLebar
    // 
    txtAsalLebar.Location = new System.Drawing.Point(121, 46);
    txtAsalLebar.ReadOnly = true;
    txtAsalLebar.Size = new System.Drawing.Size(134, 20);
    txtAsalLebar.TabIndex = 1;
    txtAsalLebar.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
    // 
    // label5
    // 
    label5.Location = new System.Drawing.Point(7, 70);
    label5.Size = new System.Drawing.Size(97, 13);
    label5.TabIndex = 0;
    label5.Text = "Tinggi Foto (Piksel)";
    // 
    // txtAsalTinggi
    // 
    txtAsalTinggi.Location = new System.Drawing.Point(121, 70);
    txtAsalTinggi.ReadOnly = true;
    txtAsalTinggi.Size = new System.Drawing.Size(134, 20);
    txtAsalTinggi.TabIndex = 1;
    txtAsalTinggi.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
    // 
    // groupBox2
    // 
    groupBox2.Controls.Add(label6);
    groupBox2.Controls.Add(label7);
    groupBox2.Controls.Add(label8);
    groupBox2.Controls.Add(txtTujuanUkuran);
    groupBox2.Controls.Add(txtTujuanLebar);
    groupBox2.Controls.Add(txtTujuanTinggi);
    groupBox2.Location = new System.Drawing.Point(283, 61);
    groupBox2.Size = new System.Drawing.Size(261, 96);
    groupBox2.TabIndex = 3;
    groupBox2.TabStop = false;
    groupBox2.Text = "Setting File Tujuan";
    // 
    // label6
    // 
    label6.AutoSize = true;
    label6.Location = new System.Drawing.Point(7, 20);
    label6.Name = "label6";
    label6.Size = new System.Drawing.Size(96, 13);
    label6.TabIndex = 0;
    label6.Text = "Ukuran File (Bytes)";
    // 
    // txtTujuanUkuran
    // 
    txtTujuanUkuran.Location = new System.Drawing.Point(121, 20);
    txtTujuanUkuran.Name = "txtTujuanUkuran";
    txtTujuanUkuran.ReadOnly = true;
    txtTujuanUkuran.Size = new System.Drawing.Size(134, 20);
    txtTujuanUkuran.TabIndex = 1;
    txtTujuanUkuran.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
    // 
    // txtTujuanLebar
    // 
    txtTujuanLebar.Location = new System.Drawing.Point(121, 46);
    txtTujuanLebar.Name = "txtTujuanLebar";
    txtTujuanLebar.Size = new System.Drawing.Size(134, 20);
    txtTujuanLebar.TabIndex = 1;
    txtTujuanLebar.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
    // 
    // label7
    // 
    label7.Location = new System.Drawing.Point(7, 46);
    label7.Size = new System.Drawing.Size(95, 13);
    label7.TabIndex = 0;
    label7.Text = "Lebar Foto (Piksel)";
    // 
    // label8
    // 
    label8.Location = new System.Drawing.Point(7, 70);
    label8.Size = new System.Drawing.Size(97, 13);
    label8.TabIndex = 0;
    label8.Text = "Tinggi Foto (Piksel)";
    // 
    // txtTujuanTinggi
    // 
    txtTujuanTinggi.Location = new System.Drawing.Point(121, 70);
    txtTujuanTinggi.Name = "txtTujuanTinggi";
    txtTujuanTinggi.Size = new System.Drawing.Size(134, 20);
    txtTujuanTinggi.TabIndex = 1;
    txtTujuanTinggi.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
    // 
    // groupBox3
    // 
    groupBox3.Controls.Add(cbInterpolasi);
    groupBox3.Controls.Add(cbPenghalusan);
    groupBox3.Controls.Add(label9);
    groupBox3.Controls.Add(label10);
    groupBox3.Location = new System.Drawing.Point(16, 163);
    groupBox3.Size = new System.Drawing.Size(261, 96);
    groupBox3.TabIndex = 3;
    groupBox3.TabStop = false;
    groupBox3.Text = "Opsi";
    // 
    // label9
    // 
    label9.AutoSize = true;
    label9.Location = new System.Drawing.Point(7, 31);
    label9.Name = "label9";
    label9.Size = new System.Drawing.Size(99, 13);
    label9.TabIndex = 0;
    label9.Text = "Mode Penghalusan";
    // 
    // cbPenghalusan
    // 
    cbPenghalusan.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
    cbPenghalusan.FormattingEnabled = true;
    cbPenghalusan.Location = new System.Drawing.Point(121, 31);
    cbPenghalusan.Name = "cbPenghalusan";
    cbPenghalusan.Size = new System.Drawing.Size(134, 21);
    cbPenghalusan.TabIndex = 1;
    cbPenghalusan.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
    // 
    // label10
    // 
    label10.Location = new System.Drawing.Point(7, 54);
    label10.Size = new System.Drawing.Size(85, 13);
    label10.TabIndex = 0;
    label10.Text = "Mode Interpolasi";
    // 
    // cbInterpolasi
    // 
    cbInterpolasi.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
    cbInterpolasi.FormattingEnabled = true;
    cbInterpolasi.Location = new System.Drawing.Point(121, 54);
    cbInterpolasi.Name = "cbInterpolasi";
    cbInterpolasi.Size = new System.Drawing.Size(134, 21);
    cbInterpolasi.TabIndex = 1;
    cbInterpolasi.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
    // 
    // groupBox4
    // 
    groupBox4.Controls.Add(btnSelesai);
    groupBox4.Controls.Add(btnProses);
    groupBox4.Controls.Add(progressBar1);
    groupBox4.Location = new System.Drawing.Point(283, 163);
    groupBox4.Size = new System.Drawing.Size(261, 96);
    groupBox4.TabIndex = 3;
    groupBox4.TabStop = false;
    groupBox4.Text = "Proses";
    // 
    // progressBar1
    // 
    progressBar1.Location = new System.Drawing.Point(10, 28);
    progressBar1.Size = new System.Drawing.Size(248, 23);
    progressBar1.TabIndex = 0;
    // 
    // btnProses
    // 
    btnProses.Location = new System.Drawing.Point(53, 57);
    btnProses.Size = new System.Drawing.Size(75, 23);
    btnProses.TabIndex = 1;
    btnProses.Text = "Proses";
    // 
    // btnSelesai
    // 
    btnSelesai.Location = new System.Drawing.Point(134, 57);
    btnSelesai.Size = new System.Drawing.Size(75, 23);
    btnSelesai.TabIndex = 1;
    btnSelesai.Text = "Selesai";


    btnAbout.Location = new System.Drawing.Point(470, 260);
    btnAbout.Size = new System.Drawing.Size(75, 23);
    btnAbout.TabIndex = 1;
    btnAbout.Text = "About";

    // 
    // PhotoResizer Form
    // 
    Controls.Add(groupBox2);
    Controls.Add(groupBox4);
    Controls.Add(groupBox3);
    Controls.Add(groupBox1);
    Controls.Add(btnAmbil);
    Controls.Add(txtFotoTujuan);
    Controls.Add(txtFotoAsal);
    Controls.Add(label2);
    Controls.Add(label1);
    Controls.Add(btnAbout);
    Size = new System.Drawing.Size(563, 320);
    Text = "PhotoResizer: Ayo Belajar C# (abcsharpind.blogspot.com)";
    
    //Inisialisasi
    cbPenghalusan.Items.Clear();
    cbPenghalusan.Items.Add("Default");
    cbPenghalusan.Items.Add("HighSpeed");
    cbPenghalusan.Items.Add("HighQuality");
    cbPenghalusan.SelectedIndex=0;

    cbInterpolasi.Items.Clear();
    cbInterpolasi.Items.Add("Default");
    cbInterpolasi.Items.Add("Bilinear");
    cbInterpolasi.Items.Add("Bicubic");
    cbInterpolasi.Items.Add("High");
    cbInterpolasi.Items.Add("HighQualityBilinear");
    cbInterpolasi.Items.Add("HighQualityBicubic");
    cbInterpolasi.Items.Add("Low");
    cbInterpolasi.Items.Add("NearestNeighbour");
    cbInterpolasi.SelectedIndex = 0;
    
    txtTujuanLebar.Text = "640";
    txtTujuanTinggi.Text = "480";
    //Penambahan Aksi Tombol:
    btnAmbil.Click += new System.EventHandler(this.btnAmbil_Click);    
    btnProses.Click += new System.EventHandler(this.btnProses_Click);
    btnSelesai.Click += new System.EventHandler(this.btnSelesai_Click);
    btnAbout.Click += new System.EventHandler(this.btnAbout_Click);
  }
  private void btnAmbil_Click(object sender, EventArgs e)
  {
      OpenFileDialog ofd;
      ofd = new OpenFileDialog();
      ofd.Filter = "JPeg File (*.jpg)|*.jpg||";            
      if (ofd.ShowDialog() == DialogResult.OK )
      {
          String tx = ofd.FileName;
          txtFotoAsal.Text = ofd.FileName;
          tx = tx.Substring(0,ofd.FileName.Length-ofd.SafeFileName.Length);
          txtFotoTujuan.Text = tx + "Dest-" + ofd.SafeFileName;
          System.IO.FileInfo f = new System.IO.FileInfo(ofd.FileName);
          long size = f.Length;                
          Bitmap b = new Bitmap(ofd.FileName);
          txtAsalUkuran.Text = size.ToString("#,##0");
          txtAsalLebar.Text = b.Width.ToString("#,##0");
          txtAsalTinggi.Text = b.Height.ToString("#,##0");
          b.Dispose();                
      }
      
  }

  private void btnSelesai_Click(object sender, EventArgs e)
  {
      Close();
  }

  private void btnProses_Click(object sender, EventArgs e)
  {
      int w;
      int h;

      progressBar1.Value = 10;
      int.TryParse( txtTujuanLebar.Text, out w);
      int.TryParse(txtTujuanTinggi.Text, out h);


      progressBar1.Value = 20;
      Bitmap bmpAsal = new Bitmap(txtFotoAsal.Text);
      Bitmap bmpTujuan = new Bitmap(w, h, bmpAsal.PixelFormat);
      Graphics g = Graphics.FromImage(bmpTujuan);


      progressBar1.Value = 30;
      //Smoothing Mode
      switch (cbPenghalusan.SelectedIndex)
      {
          case 0:
              g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.Default;
              break;
          case 1:
              g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;
              break;
          case 2:
              g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
              break;
      }

      progressBar1.Value = 40;

      switch (cbInterpolasi.SelectedIndex)
      {
          case 0:
              g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.Default;
              break;
          case 1:
              g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.Bilinear;
              break;
          case 2:
              g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.Bicubic;
              break;
          case 3:
              g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
              break;
          case 4:
              g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear;
              break;
          case 5:
              g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
              break;
          case 6:
              g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.Low;
              break;
          case 7:
              g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;
              break;
      }

      progressBar1.Value = 50;
      
      g.DrawImage(bmpAsal, 0, 0, w, h);
      g.Dispose();

      progressBar1.Value = 60;
      System.Drawing.Imaging.ImageCodecInfo[] c = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders(); ;
      System.Drawing.Imaging.ImageCodecInfo ss = c[0];
      for (int i = 0; i < c.Length; i++)
      {
          if (c[i].MimeType.Equals("image/jpeg"))
          {
              ss =  c[i];
          }
      }
      progressBar1.Value = 70;
      bmpTujuan.Save(txtFotoTujuan.Text, ss, null);

      progressBar1.Value = 80;
      bmpAsal.Dispose();
      bmpTujuan.Dispose();

      progressBar1.Value = 90;

      System.IO.FileInfo fi = new System.IO.FileInfo(txtFotoTujuan.Text);
      txtTujuanUkuran.Text = fi.Length.ToString("#,##0");
      progressBar1.Value = 100;
      
  }  
  
  private void btnAbout_Click(object Sender, EventArgs e)
  {
      About ab;
      ab = new About();
      ab.ShowDialog(this);
  }

}

Ok, Selamat Mencoba!!! (PhotoResizer)