ADLINK PCI-7432 - Manual (Page 36)

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C/C++ Libraries
5.2 Programming Guide
5.2.1 Naming Convention
The functions of the NuDAQ PCI or NuIPC CompactPCI card software
drivers uses full-names to represent the functions' real meaning. The naming
convention rules are:
In DOS Environment :
_{hardware_model}_{action_name}. e.g. _7432_Initial().
All functions in the PCI-7432 driver have 7432 as {hardware_model} and can
be used by both PCI-7432 and cPCI-7432. All functions in the PCI-7433
driver have 7433 as {hardware_model}. And again can be used by PCI-7433,
cPCI-7433 and cPCI-7433R. All functions in the PCI-7434 driver have 7434
as {hardware_model}. And can be used by PCI-7434, cPCI-7434 and cPCI-
7434R.
In order to recognize the difference between the DOS library and Windows
95 library, a capital "W" is placed at the start of each function name for
Windows 95 DLL drivers. e.g. W_7432_Initial().
5.2.2 Data Types
We have defined some data types in the Pci_743X.h (DOS) and Acl_pci.h
(Windows 95) header files. These data types are used by the NuDAQ Cards’
library. We recommend you use these data types in your application
programs. The following table shows the data type names and their range.
Type
Name
Description Range
U8 8-bit ASCII character 0 to 255
I16 16-bit signed integer -32768 to 32767
U16 16-bit unsigned integer 0 to 65535
I32 32-bit signed integer -2147483648 to 2147483647
U32 32-bit ingle-precision floating-point 0 to 4294967295
F32 32-bit ingle-precision floating-point -3.402823E38 to 3.402823E38
F64 64-bit double-precision floating-point
-1.797683134862315E308 to
1.797683134862315E309
Boolean Boolean logic value TRUE, FALSE
Table 8. Function Data Types