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1.1 root 1: /******************************Module*Header*******************************\
2: * Module Name: printer.c
3: *
4: * Contains functions for enermerating printers
5: *
6: * Created: 16-Apr-1992 11:19:00
7: * Author: Petrus Wong
8: *
9: * Copyright (c) 1990 Microsoft Corporation
10: *
11: * Before printing the bInitPrinter is called for enumerating printers
12: * and doing the setup for printing
13: *
14: * When Mandelbrot Dream exits, bCleanupPrinter is called to free up
15: * memory
16: *
17: * Dependencies:
18: *
19: * (#defines)
20: * (#includes)
21: *
22: \**************************************************************************/
23: #include <windows.h>
24: #include <winspool.h>
25: #include <drivinit.h>
26: #include "printer.h"
27:
28: //
29: // Globals for printing
30: //
31: PPRINTER_INFO_1 gpPrinters = NULL;
32: PSZ *gpszPrinterNames = NULL;
33: PSZ *gpszDeviceNames = NULL;
34:
35: extern HMENU hPrinterMenu;
36: extern INT giNPrinters;
37: extern HWND ghwndMain;
38:
1.1.1.3 ! root 39: BOOL bInitPrinter(HWND);
! 40: BOOL bCleanupPrinter(VOID);
! 41:
! 42:
1.1 root 43: /******************************Public*Routine******************************\
44: *
45: * bInitPrinter
46: *
47: * Effects: Enumerating printers...
48: *
49: * Warnings: Globals alert!!
50: *
51: * History:
52: * 16-Apr-1992 -by- Petrus Wong
53: *
54: \**************************************************************************/
55:
56: BOOL bInitPrinter(HWND hwnd) {
57: BOOL bSuccess;
58: DWORD cbPrinters;
59: DWORD cbNeeded, cReturned, j;
60: int i;
61:
62:
63: bSuccess = TRUE;
64: cbPrinters = 4096L;
65:
66: if (!(gpPrinters = (PPRINTER_INFO_1)LocalAlloc((LMEM_FIXED | LMEM_ZEROINIT),
67: cbPrinters)))
68: {
69: MessageBox(ghwndMain, "InitPrint: LocalAlloc for gpPrinters failed.", "Error", MB_OK);
70: return (FALSE);
71: }
72:
73: if (!EnumPrinters(PRINTER_ENUM_LOCAL, NULL, 1, (LPBYTE)gpPrinters,
74: cbPrinters, &cbNeeded, &cReturned))
75: {
76: if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
77: {
78: LocalFree((LOCALHANDLE)gpPrinters);
79: gpPrinters = (PPRINTER_INFO_1)LocalAlloc((LMEM_FIXED | LMEM_ZEROINIT),
80: cbNeeded);
81: cbPrinters = cbNeeded;
82:
83: if (!EnumPrinters(PRINTER_ENUM_LOCAL, NULL, 1, (LPBYTE)gpPrinters,
84: cbPrinters, &cbNeeded, &cReturned))
85: {
86: MessageBox(ghwndMain, "Could not enumerate printers!", "Error", MB_OK);
87: return (FALSE);
88: }
89:
90: }
91: else
92: {
93: MessageBox(ghwndMain, "Could not enumerate printers!", "Error", MB_OK);
94: return (FALSE);
95: }
96: }
97:
98: // allocate some memory.
99:
100: gpszPrinterNames = (PSZ *)LocalAlloc((LMEM_FIXED | LMEM_ZEROINIT),
101: cReturned * (DWORD)sizeof(PSZ));
102:
103: gpszDeviceNames = (PSZ *)LocalAlloc((LMEM_FIXED | LMEM_ZEROINIT),
104: cReturned * (DWORD)sizeof(PSZ));
105:
106: if (giNPrinters != 0) {
107: for (i = 0; i < giNPrinters; i++) {
108: RemoveMenu(hPrinterMenu, 3, MF_BYPOSITION);
109: }
110: giNPrinters = 0;
111: }
112:
113: // insert each printer name into the menu.
114:
115: j = giNPrinters = cReturned;
116: for (i = 0; i < (INT) cReturned; i++)
117: {
118: // insert into menu from bottom up.
119:
120: j--;
121: InsertMenu(hPrinterMenu, 4, MF_BYCOMMAND | MF_STRING,
122: MM_PRINTER + i, (LPSTR)gpPrinters[j].pName);
123:
124: // save a list of printer names, so we can associate them
125: // with their menu indices later.
126:
127: gpszPrinterNames[i] = gpPrinters[j].pName;
128: gpszDeviceNames[i] = gpPrinters[j].pDescription;
129: }
130: #if 0
131: //
132: // Use this if this is called in the MDI child instead
133: //
134: DrawMenuBar(GetParent(GetParent(hwnd)));
135: #endif
136: //
137: // Use this instead if this is called in InitializeApp
138: //
139: DrawMenuBar(hwnd);
140: return (bSuccess);
141: }
142:
143:
144:
145:
146: /******************************Public*Routine******************************\
147: *
148: * bCleanupPrinter
149: *
150: * Effects: Local freeing
151: *
152: * Warnings: globals!!!
153: *
154: * History:
155: * 29-May-1992 -by- Petrus Wong
156: * Wrote it.
157: \**************************************************************************/
158:
159: BOOL bCleanupPrinter(VOID)
160: {
161: if (gpPrinters != NULL)
162: LocalFree((LOCALHANDLE)gpPrinters);
163: if (gpszPrinterNames != NULL)
164: LocalFree((LOCALHANDLE)gpszPrinterNames);
165: if (gpszDeviceNames != NULL)
166: LocalFree((LOCALHANDLE)gpszDeviceNames);
167:
168: return TRUE;
169: }
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