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- #include <fpclib.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <conio.h>
-
- void TestDosErrNo( void );
-
-
- char Buf[20000];
- FILE Text;
- long int FilSize;
- int Handle,NBytes,WBytes;
- char Done,Ch;
-
- void TestDosErrNo( void )
- {
- int rc = 0;
-
- if ( DosErrNo || CErrCode ) {
- printf( "DosErrNo = %d \n", DosErrNo );
- printf( "CErrCode = %d \n", CErrCode );
- printf( "CErrType = %d \n", CErrType );
- printf( "CErrDrive = %d \n", CErrDrive );
- printf( "CErrDevice = %s \n\n", CErrDevice );
- ResetErrCodes();
- rc++;
- }
- printf("\nPress Enter to continue...");
- GetKey();
- printf( "\n" );
- }
-
- void main( void )
- {
- VioInit();
- GotoxyAbs( 1, 1 );
-
- memset( Buf, 'A', sizeof( Buf ) );
- ClrWin( 1, 1, 80, 25, 7 );
- SetInt24();
-
- printf( "doing createfile\n" );
- CreateFile( "a:Test", 0, &Handle );
- TestDosErrNo();
-
- printf( "doing writefile\n" );
- WriteFile( Handle, sizeof( Buf ), Buf, &WBytes );
- TestDosErrNo();
-
-
- printf( "doing closefile\n" );
- CloseFile( Handle );
- TestDosErrNo();
-
- printf( "doing openfile\n" );
- OpenFile( "A:Test", 2, &Handle );
- TestDosErrNo();
-
- printf( "doing FSeek\n" );
- printf( "FilSize = %ld\n", FSeek( Handle, 0, 15100L ) );
- TestDosErrNo();
-
- printf( "doing FSeek again...\n" );
- printf( "FilSize = %ld\n", FSeek( Handle, 0, 0L ) );
- TestDosErrNo();
-
- printf( "do ReadFile\n" );
- ReadFile( Handle, sizeof( Buf ), Buf, &WBytes );
- TestDosErrNo();
- printf( "Number of bytes read = %u\n", WBytes );
-
- printf( "do CloseFile\n" );
- CloseFile( Handle );
- TestDosErrNo();
- }
-