As ever, There's Always One. Check in the extra source file. *blush*

[originally from svn r1582]

printing.c

@@ -0,0 +1,117 @@
+/*
+ * Printing interface for PuTTY.
+ */
+
+#include <windows.h>
+#include "putty.h"
+
+struct printer_enum_tag {
+    int nprinters;
+    LPPRINTER_INFO_5 info;
+};
+
+struct printer_job_tag {
+    HANDLE hprinter;
+};
+
+printer_enum *printer_start_enum(int *nprinters_ptr)
+{
+    printer_enum *ret = smalloc(sizeof(printer_enum));
+    char *buffer = NULL;
+    DWORD needed, nprinters;
+
+    *nprinters_ptr = 0;		       /* default return value */
+    buffer = smalloc(512);
+    if (EnumPrinters(PRINTER_ENUM_LOCAL, NULL, 5,
+		     buffer, 512, &needed, &nprinters) == 0)
+	goto error;
+
+    buffer = srealloc(buffer, needed);
+
+    if (EnumPrinters(PRINTER_ENUM_LOCAL, NULL, 5,
+		     (LPBYTE)buffer, needed, &needed, &nprinters) == 0)
+	goto error;
+
+    ret->info = (LPPRINTER_INFO_5)buffer;
+    ret->nprinters = *nprinters_ptr = nprinters;
+    
+    return ret;
+
+    error:
+    sfree(buffer);
+    sfree(ret);
+    return NULL;
+}
+
+char *printer_get_name(printer_enum *pe, int i)
+{
+    if (!pe)
+	return NULL;
+    if (i < 0 || i >= pe->nprinters)
+	return NULL;
+    return pe->info[i].pPrinterName;
+}
+
+void printer_finish_enum(printer_enum *pe)
+{
+    if (!pe)
+	return;
+    sfree(pe->info);
+    sfree(pe);
+}
+
+printer_job *printer_start_job(char *printer)
+{
+    printer_job *ret = smalloc(sizeof(printer_job));
+    DOC_INFO_1 docinfo;
+    int jobstarted = 0, pagestarted = 0;
+
+    ret->hprinter = NULL;
+    if (!OpenPrinter(printer, &ret->hprinter, NULL))
+	goto error;
+
+    docinfo.pDocName = "PuTTY remote printer output";
+    docinfo.pOutputFile = NULL;
+    docinfo.pDatatype = "RAW";
+
+    if (!StartDocPrinter(ret->hprinter, 1, (LPSTR)&docinfo))
+	goto error;
+    jobstarted = 1;
+
+    if (!StartPagePrinter(ret->hprinter))
+	goto error;
+    pagestarted = 1;
+
+    return ret;
+
+    error:
+    if (pagestarted)
+	EndPagePrinter(ret->hprinter);
+    if (jobstarted)
+	EndDocPrinter(ret->hprinter);
+    if (ret->hprinter)
+	ClosePrinter(ret->hprinter);
+    sfree(ret);
+    return NULL;
+}
+
+void printer_job_data(printer_job *pj, void *data, int len)
+{
+    DWORD written;
+
+    if (!pj)
+	return;
+
+    WritePrinter(pj->hprinter, data, len, &written);
+}
+
+void printer_finish_job(printer_job *pj)
+{
+    if (!pj)
+	return;
+
+    EndPagePrinter(pj->hprinter);
+    EndDocPrinter(pj->hprinter);
+    ClosePrinter(pj->hprinter);
+    sfree(pj);
+}