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95 lines
1.5 KiB
95 lines
1.5 KiB
/*++
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Copyright (c) 1990 Microsoft Corporation
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Module Name:
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com.hxx
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Abstract:
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Header specific to LPT
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Author:
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Ramon Juan San Andres (ramonsa) 26-Jun-1991
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Revision History:
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--*/
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#include "string.hxx"
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//
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// Registry key with the names of the serial ports
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//
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#define LPT_KEY_NAME "HARDWARE\\DEVICEMAP\\PARALLEL PORTS"
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//
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// Data for request type REQUEST_TYPE_LPT_SETUP
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//
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typedef struct _REQUEST_DATA_LPT_SETUP {
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//
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// These flags tell what options to set
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//
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BOOLEAN SetCol;
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BOOLEAN SetLines;
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BOOLEAN SetRetry;
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//
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// Options
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//
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ULONG Col;
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ULONG Lines;
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WCHAR Retry;
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} REQUEST_DATA_LPT_SETUP, *PREQUEST_DATA_LPT_SETUP;
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//
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// Data for request type REQUEST_TYPE_LPT_REDIRECT
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//
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typedef struct _REQUEST_DATA_LPT_REDIRECT {
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DEVICE_TTYPE DeviceType;
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ULONG DeviceNumber;
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} REQUEST_DATA_LPT_REDIRECT, *PREQUEST_DATA_LPT_REDIRECT;
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//
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// Data for request type REQUEST_TYPE_CODEPAGE_SELECT
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//
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typedef struct _REQUEST_DATA_LPT_CODEPAGE_SELECT {
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ULONG Codepage; // CodePage
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} REQUEST_DATA_LPT_CODEPAGE_SELECT, *PREQUEST_DATA_LPT_CODEPAGE_SELECT;
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//
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// Data for requests to LPT
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//
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typedef union _LPT_REQUEST_DATA {
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REQUEST_DATA_LPT_SETUP Setup;
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REQUEST_DATA_LPT_REDIRECT Redirect;
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REQUEST_DATA_LPT_CODEPAGE_SELECT CpSelect;
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} LPT_REQUEST_DATA, *PLPT_REQUEST_DATA;
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//
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// Structure of a request to LPT
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//
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typedef struct _LPT_REQUEST {
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REQUEST_HEADER Header; // Request Header
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LPT_REQUEST_DATA Data; // Request data
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} LPT_REQUEST, *PLPT_REQUEST;
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