Developer CD Series 1991: Code Warrior/bincue/Code Warrior.bin/Developer Essentials/DTS Sample Code/Snippets/Snippets May '91/ReadLN.c

C/C++ Source or Header | 1991-09-09 | 389 b | 21 lines | [TEXT/MPS ]

#include <Files.h>

OSErr    ReadLine(short refNum, long *count, Ptr buf) {

    auto    struct IOParam        pb;
    auto    OSErr                osErr;

    pb.ioRefNum        = refNum;
    pb.ioCompletion    = nil;
    pb.ioBuffer        = buf;
    pb.ioReqCount    = *count;
    pb.ioPosMode    =  ('\n' << 8) | 128 ;
    pb.ioPosOffset    = 0;

    osErr = PBRead((ParmBlkPtr) &pb, false);
    if (noErr = osErr)
        *count = pb.ioActCount;

    return osErr;
}