I have asked this question before,but i might not make it clear enough. I need to use the hslider to control how many percent of the image will be shown in a panel,when I trag the slider to the zero, none of the picture shows ,and when I drag it to the right edge, and the whole picture is shown.Tim Hoff have told me a method ,but I guess I have to use mask, cause the image cannot move, but I have to be controlled by the Hslider.
I don't know how to use the mask ,Would you please help me?Thanks!! Ashly

