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Technical reference

3.3

Driver routines

3.3.1

adc100_get_driver_version

PREF1 short PREF2 adc100_get_driver_version (void);

This routine returns the version number of the ADC100/101 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.

Arguments:

Returns:

3.3.2

adc100_open_unit

PREF1 short PREF2 adc100_open_unit (

short port);

This routine opens the ADC-100 driver.

With the Windows 32-bit driver, the routine 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 adc100_get_unit_info to find out why it failed.

Arguments:

port

- the number of the parallel or USB port to which the ADC-100

is connected:

1 - LPT1

2 - LPT2 etc

101 - USB-PP1

102 - USB-PP2 etc

Returns:

TRUE if successful

3.3.3

adc100_close_unit

PREF 1 short PREF2 adc100_close_unit (

short port);

This routine closes the ADC-100 driver.

Arguments:

port

- the number identifying the port

Returns:

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 24 25

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