| Opens the selected parallel port if it is installed on PC.
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Language
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Description
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C/C++
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BOOL OpenPort ( HANDLE hLpt, UCHAR PortNumber )
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Delphi
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function OpenPort ( hLpt: THANDLE; PortNumber: Byte ) : Boolean; stdcall
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VB
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Function OpenPort ( ByVal hLpt As Long, ByVal PortNumber As Byte ) As Boolean
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Parameters:
hLpt - the handle returned by a successful call to OpenRapidLpt
PortNumber - number of the port to be opened.
Return Value :
TRUE, if the call to port was successful, FALSE otherwise.
Comments:
Use this function before doing i/o and interrupt operations with the port. If OpenPort() succeeds, you can get access to current
Parallel port info.
For example, LPT1 is opened in such a way:
OpenPort(hLpt, 1);
See also:
ClosePort
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