barcode generator dll in vb.net 17: iPod touch Photography in Objective-C

Encoder Quick Response Code in Objective-C 17: iPod touch Photography

NOTE: For Mac users, iPhoto uses geo-tagging to put photos into the Places category of iPhoto. If you have Location Services turned on (see 1: Getting Started ) when you start the camera, you will be asked if it is OK to use your current location. To double-check, do the following: 1. 2. 3. 4. Start your Settings. Go to General. Then touch Location Services. You will see a screen like the one here. Make sure the switch next to Camera is toggled to ON.

Taking a picture is as simple as pointing and shooting, yet there are some adjustments that you can make if you choose. Once your camera is on, center your subject in the screen of your iPod touch. When you are ready to take a picture, just touch the Camera button along the bottom. You will hear a shutter sound, and the screen will show an animation indicating that the picture is being taken. Once the picture is taken, it will drop down into the window in the lower left-hand corner. Touch that small thumbnail, and the Camera Roll album of your Photos app will load.

The iPod touch camera includes a 5x digital zoom. NOTE: A digital zoom is never as clear as an analog zoom, so be aware that picture quality is usually degraded slightly when using the zoom. To use the zoom, just touch the screen and move the Zoom slider, as shown in Figure 17 1.

As mentioned, the iPod touch comes with two cameras: a .7-megapixel camera for most photography and a VGA camera for self-portraits or for use in FaceTime video calls (see 13: "FaceTime Video Messaging and Skype").

To switch between the cameras, do the following: 1. 2. 3. Touch the Switch Camera icon from the Camera app. Wait for the camera to switch to the front-facing camera, and line up the shot. Touch the Switch Camera icon again to switch back to the standard camera.

TIP: Because of the placement of the front-facing camera, faces can look somewhat distorted. Try moving your face back a bit and adjusting the camera angle to get a better image.

Your iPod touch stores pictures you take in what is called your Camera Roll. You can access the Camera Roll from inside both the Camera and Photos apps. In the Camera app, touch the Pictures icon in the bottom left corner of the camera screen.

Once you touch a picture to view, you can swipe through your pictures to see all the pictures in the Camera Roll.

You have many options for loading photos onto your device. Sync using iTunes: Probably the simplest way is to use iTunes to sync photos from your computer. This is described this in detail in 3: Sync Your IPod touch with iTunes. Receive as email attachments: While this is not useful for large numbers of pictures, it works well for one or a few photos. Check out 14: Email on your iPod touch for more details about how to save attachments. (Once saved, these images show up in the Camera Roll album.) Save images from the Web: Sometimes you ll see a great image on a web site. Press and hold it to see the pop-up menu and then select Save Image. (Like other saved images, these end up in the Camera Roll album.) Download images from within an app: A good example of this is the Wallpaper image shown in 7: Personalize and Secure your iPod touch.

Figure 17 3. Windows Explorer showing the iPod touch as a portable device (connected with USB cable).

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Double-click on the iPod touch image under Portable Devices to open it. Double-click on Internal Storage to open it. Double-click on DCIM to open it. Double-click on 100APPLE to open it. You will see all the images in the Saved Photos album on your iPod touch. To copy images to your iPod touch, select and then drag and drop images from your computer into this folder. To copy images from your iPod touch, select and then drag and drop images out of this folder onto your computer.

TIP: Here s how to select multiple images in Windows. Draw a box around the images, or click on one image and then press Ctrl+A to select them all. Hold down the Ctrl key and click on individual pictures to select them. Right-click on one of the selected pictures and choose Cut (to move) or Copy (to copy) all of the selected images. To paste the images, press and click on any other disk or folder, such as My Documents, and navigate to where you want to move or copy the files. Then right-click again and select Paste.