2 * Printing interface for PuTTY.
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6 #include <winspool.h>
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8 struct printer_enum_tag {
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12 LPPRINTER_INFO_4 i4;
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13 LPPRINTER_INFO_5 i5;
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17 struct printer_job_tag {
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21 static char *printer_add_enum(int param, DWORD level, char *buffer,
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22 int offset, int *nprinters_ptr)
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24 DWORD needed = 0, nprinters = 0;
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26 buffer = sresize(buffer, offset+512, char);
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29 * Exploratory call to EnumPrinters to determine how much space
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30 * we'll need for the output. Discard the return value since it
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31 * will almost certainly be a failure due to lack of space.
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33 EnumPrinters(param, NULL, level, buffer+offset, 512,
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34 &needed, &nprinters);
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39 buffer = sresize(buffer, offset+needed, char);
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41 if (EnumPrinters(param, NULL, level, buffer+offset,
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42 needed, &needed, &nprinters) == 0)
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45 *nprinters_ptr += nprinters;
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50 printer_enum *printer_start_enum(int *nprinters_ptr)
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52 printer_enum *ret = snew(printer_enum);
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53 char *buffer = NULL, *retval;
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55 *nprinters_ptr = 0; /* default return value */
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56 buffer = snewn(512, char);
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59 * Determine what enumeration level to use.
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60 * When enumerating printers, we need to use PRINTER_INFO_4 on
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61 * NT-class systems to avoid Windows looking too hard for them and
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62 * slowing things down; and we need to avoid PRINTER_INFO_5 as
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63 * we've seen network printers not show up.
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64 * On 9x-class systems, PRINTER_INFO_4 isn't available and
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65 * PRINTER_INFO_5 is recommended.
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68 if (osVersion.dwPlatformId != VER_PLATFORM_WIN32_NT) {
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69 ret->enum_level = 5;
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71 ret->enum_level = 4;
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74 retval = printer_add_enum(PRINTER_ENUM_LOCAL | PRINTER_ENUM_CONNECTIONS,
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75 ret->enum_level, buffer, 0, nprinters_ptr);
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81 switch (ret->enum_level) {
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83 ret->info.i4 = (LPPRINTER_INFO_4)buffer;
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86 ret->info.i5 = (LPPRINTER_INFO_5)buffer;
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89 ret->nprinters = *nprinters_ptr;
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100 char *printer_get_name(printer_enum *pe, int i)
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104 if (i < 0 || i >= pe->nprinters)
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106 switch (pe->enum_level) {
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108 return pe->info.i4[i].pPrinterName;
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110 return pe->info.i5[i].pPrinterName;
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116 void printer_finish_enum(printer_enum *pe)
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120 switch (pe->enum_level) {
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122 sfree(pe->info.i4);
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125 sfree(pe->info.i5);
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131 printer_job *printer_start_job(char *printer)
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133 printer_job *ret = snew(printer_job);
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134 DOC_INFO_1 docinfo;
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135 int jobstarted = 0, pagestarted = 0;
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137 ret->hprinter = NULL;
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138 if (!OpenPrinter(printer, &ret->hprinter, NULL))
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141 docinfo.pDocName = "PuTTY remote printer output";
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142 docinfo.pOutputFile = NULL;
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143 docinfo.pDatatype = "RAW";
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145 if (!StartDocPrinter(ret->hprinter, 1, (LPSTR)&docinfo))
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149 if (!StartPagePrinter(ret->hprinter))
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157 EndPagePrinter(ret->hprinter);
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159 EndDocPrinter(ret->hprinter);
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161 ClosePrinter(ret->hprinter);
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166 void printer_job_data(printer_job *pj, void *data, int len)
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173 WritePrinter(pj->hprinter, data, len, &written);
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176 void printer_finish_job(printer_job *pj)
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181 EndPagePrinter(pj->hprinter);
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182 EndDocPrinter(pj->hprinter);
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183 ClosePrinter(pj->hprinter);
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