[hbelusca] 73047: [WINSPOOL_PRINT]: Improve the test application: - 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 la...

Author: hbelusca
Date: Wed Oct 26 22:43:53 2016
New Revision: 73047

URL: http://svn.reactos.org/svn/reactos?rev=73047&view=rev
Log:
[WINSPOOL_PRINT]: Improve the test application:
- 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.

Modified:
    trunk/rosapps/applications/cmdutils/winspool_print/CMakeLists.txt
    trunk/rosapps/applications/cmdutils/winspool_print/main.c

Modified: trunk/rosapps/applications/cmdutils/winspool_print/CMakeLists.txt
URL:
http://svn.reactos.org/svn/reactos/trunk/rosapps/applications/cmdutils/wins…
==============================================================================
--- trunk/rosapps/applications/cmdutils/winspool_print/CMakeLists.txt	[iso-8859-1]
(original)
+++ trunk/rosapps/applications/cmdutils/winspool_print/CMakeLists.txt	[iso-8859-1] Wed Oct
26 22:43:53 2016
@@ -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)

Modified: trunk/rosapps/applications/cmdutils/winspool_print/main.c
URL:
http://svn.reactos.org/svn/reactos/trunk/rosapps/applications/cmdutils/wins…
==============================================================================
--- trunk/rosapps/applications/cmdutils/winspool_print/main.c	[iso-8859-1] (original)
+++ trunk/rosapps/applications/cmdutils/winspool_print/main.c	[iso-8859-1] Wed Oct 26
22:43:53 2016
@@ -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 @@
         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 @@
         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 @@
     ReturnValue = 0;
 
 Cleanup:
+    if (hPrinter)
+        ClosePrinter(hPrinter);
+
     if (hFile != INVALID_HANDLE_VALUE)
         CloseHandle(hFile);
 
-    if (hPrinter)
-        ClosePrinter(hPrinter);
-
     return ReturnValue;
 }