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CodeBlocksPortable/WATCOM/samples/clibexam/_hdopen.c

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#include <stdio.h>
#include <dos.h>
#include <fcntl.h>
#include <io.h>
void main()
{
int dos_handle;
int handle;
if( _dos_open( "file", O_RDONLY, &dos_handle ) != 0 ) {
printf( "Unable to open file\n" );
} else {
handle = _hdopen( dos_handle, O_RDONLY );
if( handle != -1 ) {
write( handle, "hello\n", 6 );
close( handle );
}
}
}