Run Windows Phone apps in the emulator

Windows Phone emulator is a desktop application that simulates a Windows Phone. The emulator provides a virtualized environment in which you can debug and test Windows Phone apps on your computer without a physical device. You can simulate common touch and rotation events and choose the physical screen size and resolution that you want to emulate. You can also test many commonly used features, such as location, networking, notifications, sensors, the accelerometer, and the optional SD card.

For more info about the features that you can test in the emulator, see Test app features in Windows Phone Emulator.

Together with Visual Studio, the emulator provides a complete environment in which you can design, develop, debug, and test Windows Phone apps.

In this topic

• Run a Windows Phone app in the emulator

  • Run an app from Visual Studio

  • Run an app with the Application Deployment tool

• Configure the Windows Phone emulator with the emulator toolbar

• Use the simulated hardware buttons on the emulator

• Use the computer keyboard with the emulator

• Save and load custom checkpoints

• Capture screenshots in the emulator

Run a Windows Phone app in the emulator

While you’re developing a Windows Phone app, you can use Windows Phone Emulator to deploy and test your app quickly. We recommend that you test your app on an actual Windows Phone device, however, before you publish your app in the Windows Phone Store. This lets you experience your app as users will experience it.

When you run a Windows Phone app for the first time in Windows Phone Emulator, the following events occur:

1. The emulator starts.

2. The emulator loads the Windows Phone operating system.

3. The emulator displays the Windows Phone Start screen.

4. Your app is deployed to the emulator.

5. Your app runs on the emulator.

If the selected emulator is already running, your app is deployed and started in the running emulator. Only one instance of each emulator can run at a time.

Tip

When you’re testing your app on the emulator, leave the emulator open between debugging sessions so you can run your app again quickly.

Run an app from Visual Studio

To deploy and run an app from Visual Studio

1. In Visual Studio, open a Windows Phone project.

2. On the Standard toolbar, select one of the emulator options.

   

3. To deploy and run your app with debugging, on the Debug menu, click Start Debugging, or press F5.

   To deploy and run your app without debugging, on the Debug menu, click Start without Debugging, or press Ctrl+F5.

   Your app is deployed and started.

   To deploy your app without running it, on the Build menu, click Deploy Solution.

To stop a running app

• To stop a running app, do one of the following:

  • In Visual Studio, on the Debug menu, click Stop Debugging, or press Shift+F5.

  • In the emulator, press the Back button to exit the app. If the active page of the app was not the app’s start page, you may have to press the Back button more than once.

  The app exits and the Start screen opens. This ends the current debugging session.

To restart an app without debugging

1. In the emulator, on the Start screen, swipe left to view the app list.

2. In the app list, tap the app icon. The app restarts without debugging.

To deactivate a running app

1. Before you run your app, in Visual Studio, right-click the project in Solution Explorer, and then select Properties to open Project Designer.

2. In Project Designer, on the Debug page, leave the Tombstone upon deactivation while debugging check box unchecked if you want the app to go into a dormant state when deactivated. Check the check box if you want the app to be tombstoned when deactivated.

3. On the Debug menu, click Start Debugging, or press F5 to run the app.

4. In the emulator, press the Start button. The Start screen appears and the app is deactivated. The app either goes into a dormant state or it is tombstoned, depending on the setting of the Tombstone upon deactivation while debugging check box.

To reactivate a dormant or tombstoned app

• In the emulator, press the Back button to return to the app. If you navigated to other pages or opened another app, you may have to press the Back button more than once to reactivate the app.

  The debugging session resumes. If the debugger has detached from the app, you may have to press F5 to resume the debugging session.

Run an app with the Application Deployment tool

You can also use the Windows Phone Application Deployment tool (AppDeploy.exe) to run your app in the emulator. This tool is a stand-alone app that is installed when you install the Windows Phone development tools.

For more info, see Deploy Windows Phone apps with the Application Deployment tool.

Configure the Windows Phone emulator with the emulator toolbar

The following screen shot shows the configuration buttons available on the emulator toolbar.

Toolbar buttons	Configuration options
	Configure single-point or multi-point input When you enable multi-point input, you can right-click to move the touch points without touching the screen. Then you can left-click to move both touch points simultaneously.
	Configure the orientation of the emulator You can change the orientation in Windows Phone Emulator to one of three orientations: portrait, landscape left, or landscape right. The size of the emulator does not change when you change the orientation. To change the orientation, click the Rotate Left button or the Rotate Right button.
	Configure the size of the emulator You can change the size of the emulator on the host computer screen. The dots per inch (DPI) for the emulator is based on the host monitor DPI, regardless of the zoom value. To fit the emulator to the screen, click the Fit to Screen button. To change the zoom setting, click the Zoom button. The Zoom dialog box opens. In the Zoom dialog box, enter a zoom value between 33 and 100.

Use the simulated hardware buttons on the emulator

Simulate the use of a phone's hardware buttons by using the simulated hardware buttons on the right side of the emulator screen.

• Click the Power button to simulate turning the display off and on. Click and hold to simulate turning the phone off.

• Click the Volume Up or Volume Down button to simulate changing the volume of the phone's speaker for phone calls and notifications.

• The Camera button launches the camera app. You can simulate taking a photo or a video by using the controls in the camera app.

The following screenshot shows the simulated hardware buttons.

1. The left image displays the Start screen on the emulator.

2. The middle image displays the emulator after tapping the Power button to turn the display off.

3. The right image displays the emulator screen after tapping the Volume Up button to increase the volume.

Use the computer keyboard with the emulator

The emulator supports mapping of the hardware keyboard on your development computer to the keyboard on a Windows Phone. The behavior of the keys is the same as on a Windows Phone device.

By default, the hardware keyboard is not enabled. This implementation is equivalent to a sliding keyboard that must be deployed before you can use it. Before you enable the hardware keyboard, the emulator accepts key input only from the control keys.

Special characters on the keyboard of a localized version of a Windows development computer are not supported by the emulator. To enter special characters that are present on a localized keyboard, use the Software Input Panel (SIP) instead.

To use your computer keyboard in the emulator

• Press the PAGE UP key.

  - or -

• Press the PAUSE/BREAK key.

To stop using your computer the hardware keyboard in the emulator

• Press the PAGE DOWN key.

  - or -

• Press the PAUSE/BREAK key.

The following table lists the keys on a hardware keyboard that you can use to emulate the buttons and other controls on a device.

Computer hardware key	hardware button	Notes
F1	BACK	Long presses work as expected.
F2	START	Long presses work as expected.
F3	SEARCH
F4	Not applicable.
F5	Not applicable.
F6	CAMERA HALF	A dedicated camera button that is pressed halfway.
F7	CAMERA FULL	A dedicated camera button.
F8	Not applicable.
F9	VOLUME UP
F10	VOLUME DOWN
F11	Not applicable.
F12	POWER	Press the F12 key twice to enable the lock screen. Long presses work as expected.
ESC	BACK	Long presses work as expected.
PAUSE/BREAK	Toggle Keyboard	Toggles the hardware keyboard.
PAGE UP	Keyboard Up	Enables the hardware keyboard.
PAGE DOWN	Keyboard Down	Disables the hardware keyboard.

Save and load custom checkpoints

Save a snapshot of the emulator's state by using the Checkpoints tab of the emulator's Additional Tools. This feature is useful if you frequently test your app with the same data and settings.

For example, if your app requires several contacts, you can create the contact records one time and save a snapshot of the emulator. Otherwise you have to recreate the contact records every time you start the emulator.

• Click New checkpoint to capture a new snapshot of the state of the emulator with the data and settings required to test your app again later. The new checkpoint is added to the Checkpoints list.

  You can't capture a checkpoint while the debugger is attached to the emulator.

• Select a checkpoint in the Checkpoints list to view info about the checkpoint.

• Select the radio button in the Default column to make a saved checkpoint the default checkpoint for the active emulator.

• Click Restore to restart the Windows Phone operating system on the emulator and load the selected snapshot.

• Click Delete to delete a snapshot that you no longer need.

The original emulator image always appears as the first item in the Checkpoints list and cannot be changed or deleted. However you can select a different snapshot as the default emulator image.

Capture screenshots in the emulator

You can create screenshots of your Windows Phone apps by using the screenshot tool from the Additional Tools window. The tool creates PNG files that match the resolution of the running emulator.

To create an app screenshot by using the built-in emulator screenshot tool

1. To optimize the quality of your screenshots, set the zoom level of the emulator to 100 percent. The higher you set the zoom level, the better the quality of the screenshot.

2. Start your app in the emulator.

3. On the emulator toolbar, click the expand button to open the Additional Tools window.

4. Click the Screenshot tab.

5. When your app is ready, click the Capture button.

   The screenshot appears in the workspace.

6. Click the Save button to open the Save As dialog box.

7. Choose the location and File name that you want, and then click Save.

8. Optionally, navigate to other pages in your app and capture additional screenshots.

9. Launch an emulator with a different screen resolution to capture the same screenshots at a different resolution. If you ran your app with debugging, you have to stop debugging before you can run it again on another emulator.

Disable the frame rate counters on the emulator screen before you capture screenshots that will be submitted to the Windows Phone Store.

To disable frame rate counters in the emulator before capturing screenshots

• Specify a release build in Visual Studio. After specifying a release build, launch your app by selecting the Deploy [app name] link on the Build menu.

• Alternately, you can comment out the line of code in the app.xaml.cs or app.xaml.vb file that sets the value of EnableFrameRateCounter to true.