Get PNG data of an image (:png_data)
Declaration
png_data = img:png_data()
Returns
- png_data
String. PNG data. Modifying this data will not affect the image object
Description
Obtain the PNG data of the image object
Performance: this function copies data twice
Example
file.writes('/var/mobile/1.png', screen.image():png_data())
Note: This example uses functions outside this chapter screen.image
, file.writes