. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Read the example for the software you use. If your software is not in- cluded, refer to its documentation to determine if it is TWAIN-compliant, and if it is, how it provides access to TWAIN drivers.
NOTE: As you use a variety of TWAIN-compliant software, it may be helpful to know how the TWAIN specifications expect applications to perform. The specifi- cations provide for a consistent software interface by encouraging software developers to include two specific commands — SELECT SOURCE and ACQUIRE — on the FILE menu. The specification intends that users should first choose SELECT SOURCE which should display a list of TWAIN-compliant device drivers installed on the computer system. After the user selects a driver from the list, he/she should be returned to the application. The user should then choose ACQUIRE which should open access to the device and allow the user to obtain image data.
IMPORTANT: Some image editing software takes all available RAM by default at start-up. The TWAIN driver will not work if this occurs. To avoid the problem set the memory preference for your application (often found on the FILE menu) so that there is at least one megabyte of free RAM.
Example 1: Adobe Photoshop 2.5 and 3.0 for
Windows
Once you have installed the TWAIN driver(s) as described earlier in this chapter, and are in Windows, you access the driver by following these steps.
NOTE: Refer to the “Important” note just above.
1.Run Adobe Photoshop for Windows.
2.Choose SELECT TWAIN SOURCE on the ACQUIRE submenu on the Adobe Photoshop FILE menu; the SELECT SOURCE dialog box appears.
3.Click “DCSXXX,FUTUREDOMAIN” or “DCSxxx,ASPI” depending on which version of the TWAIN driver you installed and want to use. Laptop users should click the ASPI driver.
Preparing for Use with PC G 5-43
