[Mono-list] Runtime Issues

[Victor V. Ferenzi]

Title: Message

Hi,

 

Can someone help me in resolving this issue. I am very, very new to LINUX and I am not sure what
I need to do to resolve this issue. Here is what I am trying to do. I am running Mandrake Linux 9.
I downloaded the RPM'S from the MONO site and installed all four of them.

 

I then compiled the following program under a shell using
 mcs /r:System.Drawing /r:System.Windows.Forms Form1.cs

 

It compiled fine but when I go to run the application I get the following screen dump.

 

mono Form1.exe

 

** (Form1.exe:16976): WARNING **: Failed to load library libuser32.dll.so (user32.dll): libuser32.dll.so: cannot open shared object file: No such file or directory

 

** (Form1.exe:16976): WARNING **: Failed to load library libuser32.dll.so (user32.dll): libuser32.dll.so: cannot open shared object file: No such file or directory

 

** (Form1.exe:16976): WARNING **: Failed to load library libuser32.dll.so (user32.dll): libuser32.dll.so: cannot open shared object file: No such file or directory

 

** (Form1.exe:16976): WARNING **: Failed to load library libuser32.dll.so (user32.dll): libuser32.dll.so: cannot open shared object file: No such file or directory

 

Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object
in <0x00025> 06 System.Windows.Forms.Win32:RegisterClass (System.Windows.Forms.WNDCLASS&)
in <0x000dd> 00 System.Windows.Forms.ScrollableControl:get_CreateParams ()
in <0x00012> 00 System.Windows.Forms.ContainerControl:get_CreateParams ()
in <0x00012> 00 System.Windows.Forms.Form:get_CreateParams ()
in <0x00062> 00 System.Windows.Forms.Control:CreateHandle ()
in <0x00012> 00 System.Windows.Forms.Form:CreateHandle ()
in <0x003d8> 00 System.Windows.Forms.Control:.ctor ()
in <0x00015> 00 System.Windows.Forms.ScrollableControl:.ctor ()
in <0x00014> 00 System.Windows.Forms.ContainerControl:.ctor ()
in <0x00043> 00 System.Windows.Forms.Form:.ctor ()
in <0x00043> 00 WinFormHello.Form1:.ctor ()
in <0x00024> 00 WinFormHello.Form1:Main ()

 

Can someone please help me to resolve this issue.

 

Thanks,
Victor V. Ferenzi

 

SOURCE CODE

 

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

 

namespace WinFormHello
{
 /// <summary>12
 /// Summary description for Form1.
 /// </summary>
 public class Form1 : System.Windows.Forms.Form
 {
  private System.Windows.Forms.Label label1;
  private System.Windows.Forms.TextBox textBox1;
  private System.Windows.Forms.Button button1;
  /// <summary>
  /// Required designer variable.
  /// </summary>
  private System.ComponentModel.Container components = null;

 

  public Form1()
  {
   //
   // Required for Windows Form Designer support
   //
   InitializeComponent();

 

   //
   // TODO: Add any constructor code after InitializeComponent call
   //
  }

 

  /// <summary>
  /// Clean up any resources being used.
  /// </summary>
  protected override void Dispose( bool disposing )
  {
   if( disposing )
   {
    if (components != null)
    {
     components.Dispose();
    }
   }
   base.Dispose( disposing );
  }

 

  #region Windows Form Designer generated code
  /// <summary>
  /// Required method for Designer support - do not modify
  /// the contents of this method with the code editor.
  /// </summary>
  private void InitializeComponent()
  {
   //this.textBox1 = new System.Windows.Forms.TextBox();
   this.button1 = new System.Windows.Forms.Button();
   this.label1 = new System.Windows.Forms.Label();
   this.SuspendLayout();
   //
   // textBox1
   //
   this.textBox1.Location = new System.Drawing.Point(24, 48);
   this.textBox1.Name = "textBox1";
   this.textBox1.TabIndex = 1;
   this.textBox1.Text = "here";
   //
   // button1
   //
   this.button1.Location = new System.Drawing.Point(144, 48);
   this.button1.Name = "button1";
   this.button1.TabIndex = 2;
   this.button1.Text = "OK";
   this.button1.Click += new System.EventHandler(this.button1_Click);
   //
   // label1
   //
   this.label1.Location = new System.Drawing.Point(32, 24);
   this.label1.Name = "label1";
   this.label1.TabIndex = 0;
   this.label1.Text = "Enter your name";
   //
   // Form1
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
   this.ClientSize = new System.Drawing.Size(256, 93);
   this.Controls.AddRange(new System.Windows.Forms.Control[] {
             this.button1,
             this.textBox1,
             this.label1});
   
   this.Name = "Form1";
   this.Text = "Form1";
   this.ResumeLayout(false);

 

  }
  #endregion

 

  /// <summary>
  /// The main entry point for the application.
  /// </summary>
  [STAThread]
  static void Main()
  {
   Application.Run(new Form1());
  }

 

  private void button1_Click(object sender, System.EventArgs e)
  {
   MessageBox.Show("Hello " + textBox1.Text);
  }
 }
}