2 * Printing interface for PuTTY.
9 struct printer_enum_tag
{
18 struct printer_job_tag
{
22 static char *printer_add_enum(int param
, DWORD level
, char *buffer
,
23 int offset
, int *nprinters_ptr
)
25 DWORD needed
, nprinters
;
27 buffer
= sresize(buffer
, offset
+512, char);
30 * Exploratory call to EnumPrinters to determine how much space
31 * we'll need for the output. Discard the return value since it
32 * will almost certainly be a failure due to lack of space.
34 EnumPrinters(param
, NULL
, level
, buffer
+offset
, 512,
40 buffer
= sresize(buffer
, offset
+needed
, char);
42 if (EnumPrinters(param
, NULL
, level
, buffer
+offset
,
43 needed
, &needed
, &nprinters
) == 0)
46 *nprinters_ptr
+= nprinters
;
51 printer_enum
*printer_start_enum(int *nprinters_ptr
)
53 printer_enum
*ret
= snew(printer_enum
);
54 char *buffer
= NULL
, *retval
;
56 *nprinters_ptr
= 0; /* default return value */
57 buffer
= snewn(512, char);
60 * Determine what enumeration level to use.
61 * When enumerating printers, we need to use PRINTER_INFO_4 on
62 * NT-class systems to avoid Windows looking too hard for them and
63 * slowing things down; and we need to avoid PRINTER_INFO_5 as
64 * we've seen network printers not show up.
65 * On 9x-class systems, PRINTER_INFO_4 isn't available and
66 * PRINTER_INFO_5 is recommended.
69 if (osVersion
.dwPlatformId
!= VER_PLATFORM_WIN32_NT
) {
75 retval
= printer_add_enum(PRINTER_ENUM_LOCAL
| PRINTER_ENUM_CONNECTIONS
,
76 ret
->enum_level
, buffer
, 0, nprinters_ptr
);
82 switch (ret
->enum_level
) {
84 ret
->info
.i4
= (LPPRINTER_INFO_4
)buffer
;
87 ret
->info
.i5
= (LPPRINTER_INFO_5
)buffer
;
90 ret
->nprinters
= *nprinters_ptr
;
101 char *printer_get_name(printer_enum
*pe
, int i
)
105 if (i
< 0 || i
>= pe
->nprinters
)
107 switch (pe
->enum_level
) {
109 return pe
->info
.i4
[i
].pPrinterName
;
111 return pe
->info
.i5
[i
].pPrinterName
;
117 void printer_finish_enum(printer_enum
*pe
)
121 switch (pe
->enum_level
) {
132 printer_job
*printer_start_job(char *printer
)
134 printer_job
*ret
= snew(printer_job
);
136 int jobstarted
= 0, pagestarted
= 0;
138 ret
->hprinter
= NULL
;
139 if (!OpenPrinter(printer
, &ret
->hprinter
, NULL
))
142 docinfo
.pDocName
= "PuTTY remote printer output";
143 docinfo
.pOutputFile
= NULL
;
144 docinfo
.pDatatype
= "RAW";
146 if (!StartDocPrinter(ret
->hprinter
, 1, (LPSTR
)&docinfo
))
150 if (!StartPagePrinter(ret
->hprinter
))
158 EndPagePrinter(ret
->hprinter
);
160 EndDocPrinter(ret
->hprinter
);
162 ClosePrinter(ret
->hprinter
);
167 void printer_job_data(printer_job
*pj
, void *data
, int len
)
174 WritePrinter(pj
->hprinter
, data
, len
, &written
);
177 void printer_finish_job(printer_job
*pj
)
182 EndPagePrinter(pj
->hprinter
);
183 EndDocPrinter(pj
->hprinter
);
184 ClosePrinter(pj
->hprinter
);