//--------------------------------------------------------------------
// FILENAME: ControlForm.cs
//
// Copyright(c) 2005 Symbol Technologies Inc. All rights reserved.
//
// DESCRIPTION:
//
// NOTES:
//
//
//--------------------------------------------------------------------
using System;
using System.Drawing;
using System.Collections;
using System.Windows.Forms;
using System.Data;
namespace CS_DisplaySample1
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class ControlForm : System.Windows.Forms.Form
{
private System.Windows.Forms.TrackBar BacklightLeveltrackBar;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button AboutButton;
private System.Windows.Forms.Button ExitButton;
private System.Windows.Forms.TrackBar ContrastLeveltrackBar;
private System.Windows.Forms.Label Contrastlabel;
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.CheckBox BacklightCheckBox;
private Symbol.Display.Controller MyDisplayController=null;
public ControlForm()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
this.AboutButton.Focus();
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
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.BacklightLeveltrackBar = new System.Windows.Forms.TrackBar();
this.label1 = new System.Windows.Forms.Label();
this.Contrastlabel = new System.Windows.Forms.Label();
this.ContrastLeveltrackBar = new System.Windows.Forms.TrackBar();
this.AboutButton = new System.Windows.Forms.Button();
this.ExitButton = new System.Windows.Forms.Button();
this.label2 = new System.Windows.Forms.Label();
this.label3 = new System.Windows.Forms.Label();
this.label4 = new System.Windows.Forms.Label();
this.label5 = new System.Windows.Forms.Label();
this.BacklightCheckBox = new System.Windows.Forms.CheckBox();
this.SuspendLayout();
//
// BacklightLeveltrackBar
//
this.BacklightLeveltrackBar.LargeChange = 1;
this.BacklightLeveltrackBar.Location = new System.Drawing.Point(16, 104);
this.BacklightLeveltrackBar.Name = "BacklightLeveltrackBar";
this.BacklightLeveltrackBar.Size = new System.Drawing.Size(152, 45);
this.BacklightLeveltrackBar.TabIndex = 3;
this.BacklightLeveltrackBar.ValueChanged += new System.EventHandler(this.BacklightLeveltrackBar_ValueChanged);
//
// label1
//
this.label1.Location = new System.Drawing.Point(16, 80);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(152, 16);
this.label1.Text = "Backlight Levels";
//
// Contrastlabel
//
this.Contrastlabel.Location = new System.Drawing.Point(16, 160);
this.Contrastlabel.Name = "Contrastlabel";
this.Contrastlabel.Size = new System.Drawing.Size(152, 16);
this.Contrastlabel.Text = "Contrast Levels";
//
// ContrastLeveltrackBar
//
this.ContrastLeveltrackBar.LargeChange = 1;
this.ContrastLeveltrackBar.Location = new System.Drawing.Point(16, 184);
this.ContrastLeveltrackBar.Name = "ContrastLeveltrackBar";
this.ContrastLeveltrackBar.Size = new System.Drawing.Size(160, 45);
this.ContrastLeveltrackBar.TabIndex = 4;
this.ContrastLeveltrackBar.ValueChanged += new System.EventHandler(this.ContrastLeveltrackBar_ValueChanged);
//
// AboutButton
//
this.AboutButton.Location = new System.Drawing.Point(8, 240);
this.AboutButton.Name = "AboutButton";
this.AboutButton.Size = new System.Drawing.Size(88, 24);
this.AboutButton.TabIndex = 0;
this.AboutButton.Text = "About";
this.AboutButton.Click += new System.EventHandler(this.AboutButton_Click);
this.AboutButton.KeyDown += new System.Windows.Forms.KeyEventHandler(this.AboutButton_KeyDown);
//
// ExitButton
//
this.ExitButton.Location = new System.Drawing.Point(160, 240);
this.ExitButton.Name = "ExitButton";
this.ExitButton.Size = new System.Drawing.Size(72, 24);
this.ExitButton.TabIndex = 1;
this.ExitButton.Text = "Exit";
this.ExitButton.Click += new System.EventHandler(this.ExitButton_Click);
this.ExitButton.KeyDown += new System.Windows.Forms.KeyEventHandler(this.ExitButton_KeyDown);
//
// label2
//
this.label2.Location = new System.Drawing.Point(24, 128);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(24, 24);
//
// label3
//
this.label3.Location = new System.Drawing.Point(152, 128);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(24, 24);
//
// label4
//
this.label4.Location = new System.Drawing.Point(24, 208);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(24, 24);
//
// label5
//
this.label5.Location = new System.Drawing.Point(152, 208);
this.label5.Name = "label5";
this.label5.Size = new System.Drawing.Size(24, 24);
//
// BacklightCheckBox
//
this.BacklightCheckBox.Location = new System.Drawing.Point(24, 40);
this.BacklightCheckBox.Name = "BacklightCheckBox";
this.BacklightCheckBox.Size = new System.Drawing.Size(168, 20);
this.BacklightCheckBox.TabIndex = 2;
this.BacklightCheckBox.Text = "Backlight (checked = ON)";
this.BacklightCheckBox.CheckStateChanged += new System.EventHandler(this.BacklightCheckBox_CheckStateChanged);
this.BacklightCheckBox.KeyDown += new System.Windows.Forms.KeyEventHandler(this.BacklightCheckBox_KeyDown);
//
// ControlForm
//
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Inherit;
this.BackColor = System.Drawing.Color.White;
this.ClientSize = new System.Drawing.Size(240, 270);
this.Controls.Add(this.label1);
this.Controls.Add(this.label2);
this.Controls.Add(this.label3);
this.Controls.Add(this.label4);
this.Controls.Add(this.label5);
this.Controls.Add(this.Contrastlabel);
this.Controls.Add(this.BacklightCheckBox);
this.Controls.Add(this.BacklightLeveltrackBar);
this.Controls.Add(this.ContrastLeveltrackBar);
this.Controls.Add(this.AboutButton);
this.Controls.Add(this.ExitButton);
this.Name = "ControlForm";
this.Text = "CS_DisplaySample1";
this.KeyUp += new System.Windows.Forms.KeyEventHandler(this.ControlForm_KeyUp);
this.Load += new System.EventHandler(this.ControlForm_Load);
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// This function scales down the given Form & its child controls in order to
/// make them completely viewable, based on the screen width & height.
/// </summary>
static void ScaleDown(System.Windows.Forms.Form frm)
{
int scrWidth = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Width;
int scrHeight = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Height;
if (scrWidth < frm.Width)
foreach (System.Windows.Forms.Control cntrl in frm.Controls)
{
cntrl.Width = ((cntrl.Width) * (scrWidth)) / (frm.Width);
cntrl.Left = ((cntrl.Left) * (scrWidth)) / (frm.Width);
}
if (scrHeight < frm.Height)
foreach (System.Windows.Forms.Control cntrl in frm.Controls)
{
cntrl.Height = ((cntrl.Height) * (scrHeight)) / (frm.Height);
cntrl.Top = ((cntrl.Top) * (scrHeight)) / (frm.Height);
}
}
/// <summary>
/// The main entry point for the application.
/// </summary>
static void Main()
{
ControlForm cf = new ControlForm();
ScaleDown(cf);
Application.Run(cf);
}
private void ControlForm_Load(object sender, System.EventArgs e)
{
//Select a device from listing
Symbol.Display.Device MyDevice=(Symbol.Display.Device)Symbol.StandardForms.SelectDevice.Select(
Symbol.Display.Controller.Title,
Symbol.Display.Device.AvailableDevices);
if(MyDevice ==null)
{
MessageBox.Show("No Device Selected", "SelectDevice");
//close the form
this.Close();
return;
}
//Check the device type
switch (MyDevice.DisplayType)
{
// if device is standard device
case Symbol.Display.DisplayType.StandardDisplay:
MyDisplayController = new Symbol.Display.StandardDisplay(MyDevice);
break;
//if device is simulated device
case Symbol.Display.DisplayType.SimulatedDisplay:
MyDisplayController = new Symbol.Display.SimulatedDisplay(MyDevice);
break;
default :
throw new Symbol.Exceptions.InvalidDataTypeException("Unknown Device Type");
}
//add a event handler to handle event change
this.MyDisplayController.ChangeNotify+=new EventHandler(MyDisplayController_ChangeNotify);
//if backlightIntensitylevel is supported assign the max and min value to intensity
if ( this.MyDisplayController.BacklightIntensityLevels > 0 )
{
this.BacklightLeveltrackBar.Minimum=0;
this.BacklightLeveltrackBar.Maximum=(int)this.MyDisplayController.BacklightIntensityLevels-1;
this.BacklightLeveltrackBar.Value = (int)this.MyDisplayController.BacklightIntensityLevel;
this.BacklightCheckBox.Checked = this.MyDisplayController.BacklightState==Symbol.Display.BacklightState.ON;
this.label2.Text=this.BacklightLeveltrackBar.Minimum.ToString();
this.label3.Text=this.BacklightLeveltrackBar.Maximum.ToString();
this.BacklightLeveltrackBar.Show();
this.BacklightCheckBox.Show();
this.label2.Show();
this.label3.Show();
}
else
{
this.BacklightLeveltrackBar.Hide();
this.BacklightCheckBox.Hide();
this.label2.Hide();
this.label3.Hide();
}
if ( this.MyDisplayController.ContrastLevels > 0 )
{
this.ContrastLeveltrackBar.Minimum=0;
this.ContrastLeveltrackBar.Maximum=this.MyDisplayController.ContrastLevels-1;
this.ContrastLeveltrackBar.Value=this.MyDisplayController.ContrastLevel;
this.label4.Text=this.ContrastLeveltrackBar.Minimum.ToString();
this.label5.Text=this.ContrastLeveltrackBar.Maximum.ToString();
this.label4.Show();
this.label5.Show();
this.Contrastlabel.Show();
this.ContrastLeveltrackBar.Show();
}
else
{
this.label4.Hide();
this.label5.Hide();
this.Contrastlabel.Hide();
this.ContrastLeveltrackBar.Hide();
}
// Add MainMenu if Pocket PC
if(Symbol.Win32.PlatformType == "PocketPC")
{
this.Menu = new MainMenu();
}
}
private void AboutButton_Click(object sender, System.EventArgs e)
{
string sVerInfo="CS_DisplaySample1 - C# Display Control Sample 1"+"\r\n"+"\n"+
"CAPI Version\t"+this.MyDisplayController.Version.CAPIVersion+"\r\n" +
"Assembly Version\t"+this.MyDisplayController.Version.AssemblyVersion;
//Display The about Dialog
Symbol.StandardForms.About.Run(null,sVerInfo);
this.AboutButton.Focus();
}
private void ExitButton_Click(object sender, System.EventArgs e)
{
//Release all the resource before exiting
this.MyDisplayController.Dispose ();
//close the form
this.Close();
}
private void AboutButton_KeyDown(object sender, KeyEventArgs e)
{
// Checks if the key pressed was an enter button (character code 13)
if (e.KeyValue == (char)13)
AboutButton_Click(this, e);
}
private void ExitButton_KeyDown(object sender, KeyEventArgs e)
{
// Checks if the key pressed was an enter button (character code 13)
if (e.KeyValue == (char)13)
ExitButton_Click(this, e);
}
private void ControlForm_KeyUp(object sender, KeyEventArgs e)
{
this.AboutButton.Focus();
}
private void MyDisplayController_ChangeNotify(object sender, System.EventArgs e)
{
//to Get the next status of display controller
Symbol.Display.DisplayStatus MyStatus=this.MyDisplayController.GetNextStatus ();
if(MyStatus != null)
{
switch(MyStatus.Change)
{
case Symbol.Display.ChangeType.BACKLIGHT://Backlight change
if(this.MyDisplayController.BacklightState==Symbol.Display.BacklightState.ON )
this.BacklightCheckBox.Checked = true;
else
this.BacklightCheckBox.Checked = false;
break;
case Symbol.Display.ChangeType.INTENSITY://Intensity change
this.BacklightLeveltrackBar.Value =this.MyDisplayController.BacklightIntensityLevel;
break;
case Symbol.Display.ChangeType.CONTRAST://contrast change
this.ContrastLeveltrackBar.Value =this.MyDisplayController.ContrastLevel;
break;
}
}
}
private void BacklightLeveltrackBar_ValueChanged(object sender, System.EventArgs e)
{
this.MyDisplayController.BacklightIntensityLevel=this.BacklightLeveltrackBar.Value;
}
private void BacklightCheckBox_CheckStateChanged(object sender, System.EventArgs e)
{
if(this.BacklightCheckBox.Checked)
this.MyDisplayController.BacklightState=Symbol.Display.BacklightState.ON;
else
this.MyDisplayController.BacklightState=Symbol.Display.BacklightState.OFF;
}
private void BacklightCheckBox_KeyDown(object sender, KeyEventArgs e)
{
// Checks if the key pressed was an enter button (character code 13)
if (e.KeyValue == (char)13)
{
this.BacklightCheckBox.Checked = !(this.BacklightCheckBox.Checked);
BacklightCheckBox_CheckStateChanged(this, e);
}
}
private void ContrastLeveltrackBar_ValueChanged(object sender, System.EventArgs e)
{
this.MyDisplayController.ContrastLevel=this.ContrastLeveltrackBar.Value;
}
}
}
