Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-06-27 00:11:35 +00:00
Code Issues Packages Projects Releases Wiki Activity

[WINSPOOL_PRINT]: Improve the test application:

Browse source 
- 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
This commit is contained in:
Hermès Bélusca-Maïto 2016-10-26 22:43:53 +00:00
parent b5beb7dffc
commit 688b18d88c
2 changed files with 38 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
rosapps/applications/cmdutils/winspool_print/CMakeLists.txt
View file

@ -1,4 +1,4 @@
add_executable(winspool_print main.c)
set_module_type(winspool_print win32cui)
set_module_type(winspool_print win32cui UNICODE)
add_importlibs(winspool_print winspool msvcrt kernel32)
add_cd_file(TARGET winspool_print DESTINATION reactos/system32 FOR all)

50
rosapps/applications/cmdutils/winspool_print/main.c
View file

@ -1,26 +1,38 @@
#include <stdio.h>
#include <windows.h>
int main()
void Usage(WCHAR* name)
{
wprintf(L"Usage: %s testfile\n", name);
}
int wmain(int argc, WCHAR* argv[])
{
int ReturnValue = 1;
DWORD dwRead;
DWORD dwWritten;
DWORD dwFileSize;
DWORD dwRead, dwWritten;
HANDLE hFile = INVALID_HANDLE_VALUE;
HANDLE hPrinter = NULL;
DOC_INFO_1W docInfo;
BYTE Buffer[20000];
BYTE Buffer[4096];
hFile = CreateFileW(L"testfile", GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
if (argc <= 1)
{
Usage(argv[0]);
return 0;
}
hFile = CreateFileW(argv[1], GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
printf("CreateFileW failed, last error is %lu!\n", GetLastError());
goto Cleanup;
}
if (!ReadFile(hFile, Buffer, sizeof(Buffer), &dwRead, NULL))
dwFileSize = GetFileSize(hFile, NULL);
if (dwFileSize == INVALID_FILE_SIZE)
{
printf("ReadFile failed, last error is %lu!\n", GetLastError());
printf("File is too big, or GetFileSize failed; last error is %lu!\n", GetLastError());
goto Cleanup;
}
@ -30,6 +42,7 @@ int main()
goto Cleanup;
}
/* Print to a printer, with the "RAW" datatype (pDatatype == NULL or "RAW") */
ZeroMemory(&docInfo, sizeof(docInfo));
docInfo.pDocName = L"winspool_print";
@ -45,10 +58,21 @@ int main()
goto Cleanup;
}
if (!WritePrinter(hPrinter, Buffer, dwRead, &dwWritten))
while (dwFileSize > 0)
{
printf("WritePrinter failed, last error is %lu!\n", GetLastError());
goto Cleanup;
dwRead = min(sizeof(Buffer), dwFileSize);
if (!ReadFile(hFile, Buffer, dwRead, &dwRead, NULL))
{
printf("ReadFile failed, last error is %lu!\n", GetLastError());
goto Cleanup;
}
dwFileSize -= dwRead;
if (!WritePrinter(hPrinter, Buffer, dwRead, &dwWritten))
{
printf("WritePrinter failed, last error is %lu!\n", GetLastError());
goto Cleanup;
}
}
if (!EndPagePrinter(hPrinter))
@ -66,11 +90,11 @@ int main()
ReturnValue = 0;
Cleanup:
if (hFile != INVALID_HANDLE_VALUE)
CloseHandle(hFile);
if (hPrinter)
ClosePrinter(hPrinter);
if (hFile != INVALID_HANDLE_VALUE)
CloseHandle(hFile);
return ReturnValue;
}