Archived:How to use the camera viewfinder in PySymbian

Article Metadata

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Tested with

Devices(s): Nokia N95, Nokia E90

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Compatibility

Platform(s): S60 2nd Edition, S60 3rd Edition

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Article

Keywords: camera

Created: (15 May 2007)

Last edited: bogdan.galiceanu (05 Dec 2008)

Overview

This snippet shows how to use the camera viewfinder in Python.

Preconditions

Note: The camera module is not available for S60 1st Edition.

Source code

import appuifw, e32, camera
 
 
app_lock = e32.Ao_lock()
#Define the exit function 
def quit():
	#Close the viewfinder
	camera.stop_finder()
	#Release the camera so that other programs can use it
	camera.release()
	app_lock.signal()
appuifw.app.exit_key_handler = quit
 
#Function for displaying the viewfinder
def vf(im):
	appuifw.app.body.blit(im)
 
#Set the application's body to Canvas
appuifw.app.body = appuifw.Canvas()
 
#Start the viewfinder and keep the backlight on
camera.start_finder(vf, backlight_on = 1)
 
#Wait for the user to request the exit
app_lock.wait()

Postconditions

The viewfinder is shown on the device's screen and the backlight is kept on.