HTC Dash - Manual (Page 117)

While viewing an image, you can advance to the next image
or go back to the previous image; rotate the image; zoom in
or out on the image, and more.
To advance to the next image or go back to the previous image:
 Advance to the next image by sliding your finger
across the screen from right to left.
—or—
 Go back to the previous image by sliding your finger
from left to right.
To rotate the image:
With your finger, make a half-circle motion on the screen.
 Slide your finger clockwise to rotate the image 90
degrees clockwise.
—or—
 Slide your finger counter-clockwise to rotate the image
90 degrees counter-clockwise.
Section 11: Experiencing Multimedia 111