[turner] 18776: Calculate the screen size correctly. Allow a file name input.

Calculate the screen size correctly.  Allow a file name input.
Modified: trunk/rosapps/cmdutils/more/more.c
  _____
Modified: trunk/rosapps/cmdutils/more/more.c
--- trunk/rosapps/cmdutils/more/more.c  2005-10-25 19:54:15 UTC (rev
18775)
+++ trunk/rosapps/cmdutils/more/more.c  2005-10-26 12:47:22 UTC (rev
18776)
@@ -15,7 +15,7 @@
 DWORD len;
-LPTSTR msg = "--- continue ---";
+LPTSTR msg = _T("--- continue ---");
 /*handle for file and console*/
@@ -31,8 +31,8 @@
        CONSOLE_SCREEN_BUFFER_INFO csbi;
        GetConsoleScreenBufferInfo (hStdOut, &csbi);
-               *maxx = csbi.srWindow.Right;
-               *maxy = csbi.srWindow.Bottom;
+               *maxx = (csbi.srWindow.Right - csbi.srWindow.Left) + 1;
+               *maxy = (csbi.srWindow.Bottom  - csbi.srWindow.Top) - 4;
 }
@@ -85,6 +85,8 @@
        SHORT maxx,maxy;
        SHORT line_count=0,ch_count=0;
        INT i, last;
+       HANDLE hFile = INVALID_HANDLE_VALUE;
+       TCHAR szFullPath[MAX_PATH];
        /*reading/writing buffer*/
        TCHAR *buff;
@@ -106,18 +108,32 @@
                return 0;
        }
-       hKeyboard = CreateFile ("CONIN$", GENERIC_READ,
+       hKeyboard = CreateFile (_T("CONIN$"), GENERIC_READ,
                                0,NULL,OPEN_ALWAYS,0,0);
        GetScreenSize(&maxx,&maxy);
        buff=malloc(4096);
-       FlushConsoleInputBuffer (hKeyboard);
+       FlushConsoleInputBuffer (hKeyboard);
+       if(argc > 1)
+       {
+               GetFullPathName(argv[1], MAX_PATH, szFullPath, NULL);
+               hFile = CreateFile (szFullPath, GENERIC_READ,
+                               0,NULL,OPEN_ALWAYS,0,0);
+       }
+
        do
        {
-               bRet = ReadFile(hStdIn,buff,4096,&dwRead,NULL);
+               if(hFile != INVALID_HANDLE_VALUE)
+               {
+                       bRet = ReadFile(hFile,buff,4096,&dwRead,NULL);
+               }
+               else
+               {
+                       bRet = ReadFile(hStdIn,buff,4096,&dwRead,NULL);
+               }
                for(last=i=0;i<dwRead && bRet;i++)
                {
@@ -144,6 +160,7 @@
        free (buff);
        CloseHandle (hKeyboard);
+       CloseHandle (hFile);
        return 0;
 }