problem about Reading data from a RESOURCE FILE to an application

[windalfred0]

Dear all

I have met a problem during reading data from a resource file. I have refered to the default example code (base\readdata), but I got a "program close" error in my emulator

the following the part of my code for reading data
**********************************************
RResourceFile resourceFile;
RFs fsSession;
fsSession.Connect();

resourceFile.OpenL( fsSession, _L ("C:\\system\\apps\\owm\\owm.rsc") );

resourceFile.ConfirmSignatureL(0);

HBufC8* res = resourceFile.AllocReadLC(CDA);
iLog->Log(_L("dddd"));

delete res;
resourceFile.Close();
fsSession.Close();
iLog->LogNewline();

**********************************************

I know that i have to call ConfirmSignature() before calling AllocReadLC(), but I still get the error. I can log the string "dddd" so it means i got the error after calling the AllocReadLC or probably later

So anyone knows what's going on????
Help~~~~~
thx a lot

[symbianyucca]

Hi

In case you want to read resource in standard application from the default resource file you could ustilize the functions provided by CEikonEnv. ReadResourceAsDes16 or AllocReadResourceL for example.

yucca

[windalfred0]

another question here...

i failed to get the correct data from my resource file
i have succeeded in loading the RSC file, then i tried to access the data by TResourceReader (just as the example from the SDK)

i tried this

theReader.ReadInt32() (nb sth like this, to get a LONG)

and

theReader.ReadHufC8 (nb still sth like this, to get a LTEXT)

but i have got some strange things...but not my data defined in the RESOURCE file....

my resource file is like this
RESOURCE ARRAY cda
{
datament = {
DATA{
longNum = 8;
ltextString = "ABC";
},
..............

};
}

[stenlik]

Hi,
I use this code reading a string from array of strings defined in my .rss file.May be it will help you:

===========[C source]===========

HBufC* GetStringLC() {
// copy resources from file to newly allocated memory
HBufC8* pArray = CEikonEnv::Static()->AllocReadResourceAsDes8LC(R_ARRAY_OF_STRINGS);

// obtain pointer to requested string by returned index
TResourceReader reader;
TInt index = iSettings.GetStringIndex();
TPtrC ptr = reader.ReadTPtrC(index, pArray);

// allocate memory for requested string
HBufC* pStr = ptr.AllocL();

CleanupStack::PopAndDestroy(pArray);
CleanupStack::PushL(pStr);

return pStr;
}

===========[RSS part]===========
// ---------------------------------------------------------
RESOURCE ARRAY r_array_of_strings {
items = {
LBUF { txt = " str1"; },
LBUF { txt = "str2"; },
LBUF { txt = "str3"; },
....
};
}

Of course it is better to put strings into LOC file.

Bye STeN

[johanehlers]

Hello windalfred0.

I have had a similar problem and your code seem fine. If u are using TBUF in your resource source files, dont! It is not putting in the rigth data into your resource file. There should be a byte with the text length and a padding byte "oxab" after that. Try changing your compiled resource file (change the first unicode character of your string to something like 0x10ab assuming your string is 10 characters long and it should work).

Use the following instead in your resource source file:

// Define structures
STRUCT STRING
{
LTEXT text;
}

RESOURCE STRING foony
{
text = "The cow said FOO!";
}

The error your program gives is a BAFL 15. Look it up in your sdk documentation and you can get more information on it. The best way to see the difference is to compile a simple resource file using TBUF and then one using STRING you can then see the difference in the file. The second file should be 2 bytes bigger for the length byte and padding byte. That is if you only have one string of course.

All the best.