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688b18d88c
- Do not hardcode the test file name, but instead take it from the command line (and add a Usage() function); - Do not use a too large fixed-size buffer to read & print the file, but instead use a correctly-size buffer, get the file size, and then do a loop to read data from the file by chunks & send it to the printer. svn path=/trunk/; revision=73047
101 lines
2.4 KiB
C
101 lines
2.4 KiB
C
#include <stdio.h>
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#include <windows.h>
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void Usage(WCHAR* name)
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{
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wprintf(L"Usage: %s testfile\n", name);
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}
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int wmain(int argc, WCHAR* argv[])
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{
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int ReturnValue = 1;
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DWORD dwFileSize;
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DWORD dwRead, dwWritten;
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HANDLE hFile = INVALID_HANDLE_VALUE;
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HANDLE hPrinter = NULL;
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DOC_INFO_1W docInfo;
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BYTE Buffer[4096];
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if (argc <= 1)
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{
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Usage(argv[0]);
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return 0;
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}
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hFile = CreateFileW(argv[1], GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
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if (hFile == INVALID_HANDLE_VALUE)
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{
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printf("CreateFileW failed, last error is %lu!\n", GetLastError());
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goto Cleanup;
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}
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dwFileSize = GetFileSize(hFile, NULL);
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if (dwFileSize == INVALID_FILE_SIZE)
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{
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printf("File is too big, or GetFileSize failed; last error is %lu!\n", GetLastError());
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goto Cleanup;
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}
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if (!OpenPrinterW(L"Dummy Printer On LPT1", &hPrinter, NULL))
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{
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printf("OpenPrinterW failed, last error is %lu!\n", GetLastError());
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goto Cleanup;
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}
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/* Print to a printer, with the "RAW" datatype (pDatatype == NULL or "RAW") */
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ZeroMemory(&docInfo, sizeof(docInfo));
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docInfo.pDocName = L"winspool_print";
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if (!StartDocPrinterW(hPrinter, 1, (LPBYTE)&docInfo))
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{
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printf("StartDocPrinterW failed, last error is %lu!\n", GetLastError());
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goto Cleanup;
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}
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if (!StartPagePrinter(hPrinter))
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{
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printf("StartPagePrinter failed, last error is %lu!\n", GetLastError());
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goto Cleanup;
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}
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while (dwFileSize > 0)
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{
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dwRead = min(sizeof(Buffer), dwFileSize);
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if (!ReadFile(hFile, Buffer, dwRead, &dwRead, NULL))
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{
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printf("ReadFile failed, last error is %lu!\n", GetLastError());
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goto Cleanup;
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}
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dwFileSize -= dwRead;
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if (!WritePrinter(hPrinter, Buffer, dwRead, &dwWritten))
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{
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printf("WritePrinter failed, last error is %lu!\n", GetLastError());
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goto Cleanup;
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}
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}
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if (!EndPagePrinter(hPrinter))
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{
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printf("EndPagePrinter failed, last error is %lu!\n", GetLastError());
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goto Cleanup;
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}
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if (!EndDocPrinter(hPrinter))
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{
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printf("EndDocPrinter failed, last error is %lu!\n", GetLastError());
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goto Cleanup;
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}
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ReturnValue = 0;
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Cleanup:
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if (hPrinter)
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ClosePrinter(hPrinter);
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if (hFile != INVALID_HANDLE_VALUE)
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CloseHandle(hFile);
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return ReturnValue;
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}
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