2 * Printing interface for PuTTY.
7 struct printer_enum_tag {
16 struct printer_job_tag {
20 static char *printer_add_enum(int param, DWORD level, char *buffer,
21 int offset, int *nprinters_ptr)
23 DWORD needed, nprinters;
25 buffer = sresize(buffer, offset+512, char);
28 * Exploratory call to EnumPrinters to determine how much space
29 * we'll need for the output. Discard the return value since it
30 * will almost certainly be a failure due to lack of space.
32 EnumPrinters(param, NULL, level, buffer+offset, 512,
38 buffer = sresize(buffer, offset+needed, char);
40 if (EnumPrinters(param, NULL, level, buffer+offset,
41 needed, &needed, &nprinters) == 0)
44 *nprinters_ptr += nprinters;
49 printer_enum *printer_start_enum(int *nprinters_ptr)
51 printer_enum *ret = snew(printer_enum);
52 char *buffer = NULL, *retval;
54 *nprinters_ptr = 0; /* default return value */
55 buffer = snewn(512, char);
58 * Determine what enumeration level to use.
59 * When enumerating printers, we need to use PRINTER_INFO_4 on
60 * NT-class systems to avoid Windows looking too hard for them and
61 * slowing things down; and we need to avoid PRINTER_INFO_5 as
62 * we've seen network printers not show up.
63 * On 9x-class systems, PRINTER_INFO_4 isn't available and
64 * PRINTER_INFO_5 is recommended.
67 if (osVersion.dwPlatformId != VER_PLATFORM_WIN32_NT) {
73 retval = printer_add_enum(PRINTER_ENUM_LOCAL | PRINTER_ENUM_CONNECTIONS,
74 ret->enum_level, buffer, 0, nprinters_ptr);
80 switch (ret->enum_level) {
82 ret->info.i4 = (LPPRINTER_INFO_4)buffer;
85 ret->info.i5 = (LPPRINTER_INFO_5)buffer;
88 ret->nprinters = *nprinters_ptr;
99 char *printer_get_name(printer_enum *pe, int i)
103 if (i < 0 || i >= pe->nprinters)
105 switch (pe->enum_level) {
107 return pe->info.i4[i].pPrinterName;
109 return pe->info.i5[i].pPrinterName;
115 void printer_finish_enum(printer_enum *pe)
119 switch (pe->enum_level) {
130 printer_job *printer_start_job(char *printer)
132 printer_job *ret = snew(printer_job);
134 int jobstarted = 0, pagestarted = 0;
136 ret->hprinter = NULL;
137 if (!OpenPrinter(printer, &ret->hprinter, NULL))
140 docinfo.pDocName = "PuTTY remote printer output";
141 docinfo.pOutputFile = NULL;
142 docinfo.pDatatype = "RAW";
144 if (!StartDocPrinter(ret->hprinter, 1, (LPSTR)&docinfo))
148 if (!StartPagePrinter(ret->hprinter))
156 EndPagePrinter(ret->hprinter);
158 EndDocPrinter(ret->hprinter);
160 ClosePrinter(ret->hprinter);
165 void printer_job_data(printer_job *pj, void *data, int len)
172 WritePrinter(pj->hprinter, data, len, &written);
175 void printer_finish_job(printer_job *pj)
180 EndPagePrinter(pj->hprinter);
181 EndDocPrinter(pj->hprinter);
182 ClosePrinter(pj->hprinter);