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Operation, cont’d
MGP 462 • Operation3-16
Background Capture menu
The Background Capture menu allows you to capture the image that is currently
displayed on the output screen and save it as a bitmap (.bmp) file with one of 16
designated image names. You can then recall the image and use it as a background.
Background Capture also can be done via Ethernet, using the MGP 462 Web pages.
See chapter 5, Ethernet Control, for further information.
Background Capture menu flow
Memory space for background files
The MGP 462 has 16 MB of user storage space that can be used for saved
backgrounds and uploaded user Web pages. The number of images that you can
save depends on the size (in kB) of the image bitmap file and the resolution. The
following table shows the number of images you can store based on different
resolutions.
Resolution 640 x 480 800 x 600 1024 x 768 1280 x 1024 1400 x 1050 1600 x 1200
Image size (KB) 900.00 1406.25 2304.00 3804.00 4306.64 5625.00
Total images 16* 11 6 4 3 2
*16 is the maximum number of images that can be saved as backgrounds.
To calculate the size of a bitmap file for any image of any specified size, use this
formula:
file size (in kilobytes) = (horizontal x vertical x 3)
+ +
+ +
+ 54(file header ID)
Saving a background to memory
To save the current image to memory for use as a background, follow these steps:
1. Press Menu repeatedly until the Background Capture screen is displayed.
Press Next once to display the Save Background to Memory submenu screen.
2. Rotate either Adjust knob to select a background file name (bkg01.bmp
through bkg16.bmp) with which to save the image.
You can save the background image only under one of the file names on this
menu; you cannot make up a different name for it.
If you do not want to save the image, select None, then press Next. The Recall
Background submenu screen is displayed.
3. Press the Next button to save the image as a bitmap (.bmp) file. The LCD
screen displays the message “[Detail] = Confirm filename.bmp.”
The unit supports 24-bit bitmap files only. Their file names must have the
format Bkgnn.bmp.
Window Text
Configuration
Background
Capture
MENU
Save Bkgd to Mem
<none>
Recall Bkgd Mem
<none>
Saving Backgrnd
Please Wait 10%
NEXT
Use either Adjust knob
to adjust the submenus.
NEXT
Recalled
<bkgNN.bmp>
Recalling
<bkgNN.bmp>
[Detail] = Confirm
<bkgNN.bmp>
NEXT
Save current image
as a background
Select a name for the
background file being
saved: bkg01.bmp
through bkg16.bmp
NEXT
Recall a background
Image from memory
Select an image
file name to recall for
use as background:
bkg01.bmp through
bkg16.bmp
DETAIL
If None is selected