2 * Printing interface for PuTTY.
8 struct printer_enum_tag {
17 struct printer_job_tag {
21 static char *printer_add_enum(int param, DWORD level, char *buffer,
22 int offset, int *nprinters_ptr)
24 DWORD needed, nprinters;
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);
53 char *buffer = NULL, *retval;
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 retval = printer_add_enum(PRINTER_ENUM_LOCAL | PRINTER_ENUM_CONNECTIONS,
75 ret->enum_level, buffer, 0, nprinters_ptr);
81 switch (ret->enum_level) {
83 ret->info.i4 = (LPPRINTER_INFO_4)buffer;
86 ret->info.i5 = (LPPRINTER_INFO_5)buffer;
89 ret->nprinters = *nprinters_ptr;
100 char *printer_get_name(printer_enum *pe, int i)
104 if (i < 0 || i >= pe->nprinters)
106 switch (pe->enum_level) {
108 return pe->info.i4[i].pPrinterName;
110 return pe->info.i5[i].pPrinterName;
116 void printer_finish_enum(printer_enum *pe)
120 switch (pe->enum_level) {
131 printer_job *printer_start_job(char *printer)
133 printer_job *ret = snew(printer_job);
135 int jobstarted = 0, pagestarted = 0;
137 ret->hprinter = NULL;
138 if (!OpenPrinter(printer, &ret->hprinter, NULL))
141 docinfo.pDocName = "PuTTY remote printer output";
142 docinfo.pOutputFile = NULL;
143 docinfo.pDatatype = "RAW";
145 if (!StartDocPrinter(ret->hprinter, 1, (LPSTR)&docinfo))
149 if (!StartPagePrinter(ret->hprinter))
157 EndPagePrinter(ret->hprinter);
159 EndDocPrinter(ret->hprinter);
161 ClosePrinter(ret->hprinter);
166 void printer_job_data(printer_job *pj, void *data, int len)
173 WritePrinter(pj->hprinter, data, len, &written);
176 void printer_finish_job(printer_job *pj)
181 EndPagePrinter(pj->hprinter);
182 EndDocPrinter(pj->hprinter);
183 ClosePrinter(pj->hprinter);