/* Using FSRead to Read from a File

* This is a simple demonstration of using SFGetFile, FSOpen and FSRead. It

* prompts the user for a text file and then writes the contents of that file to the

* console window. It is intended only as an example and so contains a minimum of

* error handling.

// Assumes inclusion of

#include

void ToolBoxInit (void);

void GetAFile (Handle* handleToFileData, long *fileSize);

void ToolBoxInit ()

{

InitGraf (&thePort);

InitFonts ();

InitWindows ();

InitMenus ();

TEInit ();

InitDialogs (nil);

InitCursor ();

}

void GetAFile (Handle* handleToFileData, long *fileSize)

{

short fileRefNum;

SFTypeList typeList;

Point where;

SFReply aReply;

OSErr err;

long count;

SetPt (&where, 0, 0);

typeList[0] = 'TEXT';

SFGetFile (where, nil, nil, 1, typeList, nil, &aReply);

if (aReply.good)

{

err = FSOpen (aReply.fName, aReply.vRefNum, &fileRefNum);

if (!err) {

err = GetEOF (fileRefNum, fileSize);

if (!err) {

if (fileSize == 0)

{

printf ("Nothing in file\n");

exit (1);

}

* handleToFileData = NewHandle (*fileSize);

if (* handleToFileData == nil)

{

printf ("Sorry, the file is too big to read at once\n");

err = FSClose (fileRefNum);

exit (1);

}

HLock (* handleToFileData);

count = *fileSize;

err = FSRead (fileRefNum, &count, ** handleToFileData);

if ((err) || (count != *fileSize)) {

printf ("Problem reading file\n");

err = FSClose (fileRefNum);

exit (1);

}

HUnlock (* handleToFileData);

}

else {

printf ("Problem getting size of file\n");

err = FSClose (fileRefNum);

exit (1);

}

else {

printf ("Problem opening file\n");

exit (1);

}

main ()

{

Handle handleToData;

short i;

long fileSize;

ToolBoxInit();

GetAFile (& handleToData, &fileSize);

HLock ( handleToData);

for (i = 0; i < fileSize; i++)

if (((* handleToData)[i]) == '\r')

putchar ('\n');

else

putchar ((* handleToData)[i]);

HUnlock ( handleToData);

while (!Button ());

}