SYSTEM AND METHOD FOR CONTROLLING PANNING AND SCROLLING AREA OF DISPLAY IMAGE

摘要

A system and method for controlling panning and scrolling area of display image includes the steps of detecting a selection of a region of the display by a pointer device (10); computing newX and newY coordinates of selected region (12); comparing said newX and newY coordinates on the display with corresponding region of bitmap of the image; determining if the newX and newY coordinates are within a threshold range (16); if the newX and newY coordinates are within a threshold range, shifting the coordinates by a predetermined value (18); comparing the newX and newY coordinates with currentX and currentY coordinates stored in memory (20); if said newX and newY coordinates are different from currentX and currentY coordinates, updating the image on the display to section of the image bitmap corresponding with the newX and newY coordinates (24); and storing the newX and newY coordinates in memory as currentX and currentY coordinates (22). A method for scrolling on a display, an image stored on a digital device is also included.