Camera Capture Task in Windows Phone 7 via WCF Service Messaging

Introduction

In this article let's learn one better concept in windows phone which communicates with WCF Service to retrieve some friendly message to user. Once this application is fully developed and deployed it enables to take photo using application with inbuilt camera. Later, can able to view the taken photo images.

Question Arises: What is Camera Capture Task?

In simple terms "It enables to take photos using this application with inbuilt camera."

Let's get this started now!!

Step 1 : The Complete Code of IService1.cs looks like this:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;
namespace Camera_WCF
{
// NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "IService1" in both code and config file together.
[ServiceContract]
public interface IService1 { [OperationContract] string Capture(); }
}

Step 2 : The Complete Code of Service1.svc.cs looks like this:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;
namespace Camera_WCF
{
// NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "Service1" in code, svc and config file together.
public class Service1 : IService1
{
public string Capture()
{
return " Hurray !!! It's Message from WCF for Camera Task ";
}
}
}

Step 3 : The Complete Code of Web.Config looks like this:

<?xml version="1.0"?>
<configuration>
<system.web>
<compilation debug="true" targetFramework="4.0" />
</system.web>
<system.serviceModel>
<behaviors>
<serviceBehaviors>
<behavior>

<serviceMetadata httpGetEnabled="true"/>

<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
</system.webServer>
</configuration>

Step 4 : The Complete Code of MainPage.xaml looks like this:

<phone:PhoneApplicationPage x:Class="Camera_Capture_Task.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768" FontFamily=
{StaticResource PhoneFontFamilyNormal}" FontSize="{StaticResource PhoneFontSizeNormal}" Foreground="{StaticResource PhoneForegroundBrush}"

SupportedOrientations="Portrait" Orientation="Portrait" shell:SystemTray.IsVisible="True">

<Grid x:Name="LayoutRoot" Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>

<StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
<TextBlock x:Name="ApplicationTitle" Text="Vijay's Camera Capture Application" Style="{StaticResource PhoneTextNormalStyle}"/>
<TextBlock x:Name="PageTitle" Text="Windows 7 Phone" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
</StackPanel>

<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<Image Height="234" HorizontalAlignment="Left" Margin="75,342,0,0" Name="image1" Stretch="Fill" VerticalAlignment="Top" Width="329" />
<Button Content="Capture" FontFamily="Verdana" FontSize="22" Height="72" HorizontalAlignment="Left" Margin="145,155,0,0" Name="button1"
VerticalAlignment="Top" Width="160" Click="button1_Click" />
</Grid>
</Grid>
</phone:PhoneApplicationPage>

Step 5 : The Complete Code of MainPage.xaml.cs looks like this:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Tasks;
using System.Windows.Media.Imaging;
using Camera_Capture_Task.ServiceReference1;
namespace Camera_Capture_Task
{
public partial class MainPage : PhoneApplicationPage
{
// Constructor
public MainPage()
{
InitializeComponent();
}
static void capture_Call(object sender, CaptureCompletedEventArgs e)
{
MessageBox.Show(e.Result);
}
private void button1_Click(object sender, RoutedEventArgs e)
{
objClient.CaptureCompleted += new EventHandler<CaptureCompletedEventArgs>(capture_Call);
objClient.CaptureAsync();
objCapture_Task.Completed += new EventHandler<PhotoResult>(capture_Completed);
objCapture_Task.Show();
}
void capture_Completed(object sender, PhotoResult e)
{
switch(e.TaskResult)
{
case TaskResult.OK: BitmapImage objImage = new BitmapImage();
objImage.SetSource(e.ChosenPhoto);
image1.Source = objImage;
break;
case TaskResult.Cancel: MessageBox.Show("Capture Cancelled");
break;
case TaskResult.None: MessageBox.Show("Capture Cannot be Operated");
break;
}
}
#region Class Objects Service1Client objClient = new Service1Client();
CameraCaptureTask objCapture_Task = new CameraCaptureTask(); #endregion
}
}

Step 6 : The Output of the Application looks like this:

I hope this article is useful for you. I look forward for your comments and feedback.

Thanks Vijay Prativadi.

8 Comments

Join the conversation! Your thoughts help the community grow.

Manish Singh14y ago
It is really nice presentation
- Vijay Prativadi14y ago
  Thanks Manish......For your valuable feedback!!!
Amit Maheshwari14y ago
Hello Vijay it's really very helpful to us having great effort to accomplish such task and thanks for sharing............
- Vijay Prativadi14y ago
  Thanks Amit......U Welcome!!!
Vineet Kumar Saini14y ago
Good article.....
- Vijay Prativadi14y ago
  Thanks Vineeth.... U welcome!!!
Mahesh Chand14y ago
I was looking for the same. Thanks!
- Vijay Prativadi14y ago
  Thank You Sir!!