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Timeouts on LPT1

Posted on 1998-05-15
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Last Modified: 2013-12-03
I am writing a program that gets a handle to the parrallel port using CreateFile and then sends a string of bytes out that port to be printed using WriteFile.  I am trying to incorporate some sort of timeout functionality in this program but ever time I try to call either GetCommTimeouts or SetCommTimeouts I get an error 1: ERROR_INVALID_FUUNCTION.  Is it possible to use these functions when writing out LPT1?  If not is their any way to get some sort of timeout capability on the parallel port?
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Question by:toddj
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Accepted Solution

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bbarber earned 100 total points
ID: 1402147
You could try settimer to windows.  Every time you receive a response kill the timer then every time you send data set the timer.  If you receive the WM_TIMER message process
it as a error as in time out.
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Expert Comment

by:bbarber
ID: 1402148
if ( 0 == SetTimer ( hWnd, 1, ( UINT )600L, NULL ) )
{
MessageBox(hWnd, "Unable to Initialize Queue Refresh Timer.\r\nAutomatic Refresh of this Queue is disabled.", "Timer Warning!", MB_ICONEXCLAMATION | MB_OK);
                                          }

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Expert Comment

by:bbarber
ID: 1402149
if ( 0 == SetTimer ( hWnd, 1, ( UINT )600L, NULL ) )
{
MessageBox(hWnd, "Unable to Initialize Queue Refresh Timer.\r\nAutomatic Refresh of this Queue is disabled.", "Timer Warning!", MB_ICONEXCLAMATION | MB_OK);
                                          }

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