2 * Printing interface for PuTTY.
8 struct printer_enum_tag
{
17 struct printer_job_tag
{
21 static int printer_add_enum(int param
, DWORD level
, char **buffer
,
22 int offset
, int *nprinters_ptr
)
24 DWORD needed
= 0, nprinters
= 0;
26 *buffer
= sresize(*buffer
, offset
+512, char);
29 * Exploratory call to EnumPrinters to determine how much space
30 * we'll need for the output. Discard the return value since it
31 * will almost certainly be a failure due to lack of space.
33 EnumPrinters(param
, NULL
, level
, (*buffer
)+offset
, 512,
39 *buffer
= sresize(*buffer
, offset
+needed
, char);
41 if (EnumPrinters(param
, NULL
, level
, (*buffer
)+offset
,
42 needed
, &needed
, &nprinters
) == 0)
45 *nprinters_ptr
+= nprinters
;
50 printer_enum
*printer_start_enum(int *nprinters_ptr
)
52 printer_enum
*ret
= snew(printer_enum
);
55 *nprinters_ptr
= 0; /* default return value */
56 buffer
= snewn(512, char);
59 * Determine what enumeration level to use.
60 * When enumerating printers, we need to use PRINTER_INFO_4 on
61 * NT-class systems to avoid Windows looking too hard for them and
62 * slowing things down; and we need to avoid PRINTER_INFO_5 as
63 * we've seen network printers not show up.
64 * On 9x-class systems, PRINTER_INFO_4 isn't available and
65 * PRINTER_INFO_5 is recommended.
68 if (osVersion
.dwPlatformId
!= VER_PLATFORM_WIN32_NT
) {
74 if (!printer_add_enum(PRINTER_ENUM_LOCAL
| PRINTER_ENUM_CONNECTIONS
,
75 ret
->enum_level
, &buffer
, 0, nprinters_ptr
))
78 switch (ret
->enum_level
) {
80 ret
->info
.i4
= (LPPRINTER_INFO_4
)buffer
;
83 ret
->info
.i5
= (LPPRINTER_INFO_5
)buffer
;
86 ret
->nprinters
= *nprinters_ptr
;
97 char *printer_get_name(printer_enum
*pe
, int i
)
101 if (i
< 0 || i
>= pe
->nprinters
)
103 switch (pe
->enum_level
) {
105 return pe
->info
.i4
[i
].pPrinterName
;
107 return pe
->info
.i5
[i
].pPrinterName
;
113 void printer_finish_enum(printer_enum
*pe
)
117 switch (pe
->enum_level
) {
128 printer_job
*printer_start_job(char *printer
)
130 printer_job
*ret
= snew(printer_job
);
132 int jobstarted
= 0, pagestarted
= 0;
134 ret
->hprinter
= NULL
;
135 if (!OpenPrinter(printer
, &ret
->hprinter
, NULL
))
138 docinfo
.pDocName
= "PuTTY remote printer output";
139 docinfo
.pOutputFile
= NULL
;
140 docinfo
.pDatatype
= "RAW";
142 if (!StartDocPrinter(ret
->hprinter
, 1, (LPSTR
)&docinfo
))
146 if (!StartPagePrinter(ret
->hprinter
))
154 EndPagePrinter(ret
->hprinter
);
156 EndDocPrinter(ret
->hprinter
);
158 ClosePrinter(ret
->hprinter
);
163 void printer_job_data(printer_job
*pj
, void *data
, int len
)
170 WritePrinter(pj
->hprinter
, data
, len
, &written
);
173 void printer_finish_job(printer_job
*pj
)
178 EndPagePrinter(pj
->hprinter
);
179 EndDocPrinter(pj
->hprinter
);
180 ClosePrinter(pj
->hprinter
);