User`s guide

Driver Formats & Routines

4.2

Procedures

4.2.1

adc10_get_driver_version

short adc10_get_driver_version (void)

This routine returns the version number of the ADC-10 driver. You can use it to check

that your application is used only with the driver version that it was designed for use

with.

Generally speaking, new driver versions will be fully backward compatible with earlier

versions, though the converse is not always true, so it should be safe to check that

the driver version is greater than or equal to the version that it was designed for use

with.

The version is a two-byte value, of which the upper byte is the major version and the

lower byte is the minor version.

4.2.2

adc10_open_unit

short adc10_open_unit

(

short port,

short product

)

This routine opens the ADC-10 driver.

If possible, it checks the BIOS printer address table and gets the address of the

specified printer port. If not, it assumes that the printer ports 1..3 are at 0x378,

0x278 and 0x3BC.

It then calibrates the timing functions for the computer. It returns TRUE if successful.

If it is not successful, you can call adc10_get_unit_info to find out why it failed.

Arguments

port The number of the parallel port or USB port that the ADC-10 is

connected to:

1 - LPT1

2 - LPT2 etc

101 - USB-PP1

102 - USB-PP2 etc

product This identifies the type of product that you wish to use:

10 - ADC-10

12 - ADC-12

40 - ADC-40

42 - ADC-42

4.2.3

adc10_close_unit

short adc10_close_unit

(

short port

)