Using IR Port i have to print the data through printer from nokia devices.

I used commconnection and used IR0 as port but i am unable to print the data

public void commConnection()
{
...

i am developing code for a device which supports embedded linux.
application needs to save the data permanently untill the application is unloaded.but the data shouldnt visible to the user who will...

we cant hide the data from user?we cant give security without visible from the user?

Hi,

I have a doubt.the stored details will be visible from memory to the user?means the user can delete the data from memory?

thank you verymuch ,

i wil try with SQLite if i get any doubt i will ask

thank you once again

thank you very much for your reply

Hi,

thank you for quick reply

instead of https url i mentioned http url but the following error is occuring

Download failed: Connection refused.

what i do now?what changes need that...

Hi,


what changes required to send a http post instead of https sample program which is given by network examples.


please guide me.

thanks in Advance

Hi,

I am using Linux OS,
i need to encrypt as well as decrypt text with TripleDes with pkcs5 padding on C, for this i am using openssl libraries , by using this i am able to encrypt and...

Hi,

Right now i am working with Qt on Embedded Linux, i need to save the data as a persistent storage,which is like a recordstorage in j2me,not as a file. Please guide me


Is it possible or...

Hi,

what is the use of Q_OBJECT macro?

thanks in Advance

Hi,

How MOC and UIC will work for compilatkon in Qt

Hi,

What are all the platforms/os currently Qt Supports?

Hi,

How a Qt program/Application written for one platform can be ported/executed in another platform?

thank you very much your explanation helps to me alot

Hi,

what is QCast and how will it differ compared to c++ dynamic cast

please explain

thank you

Hi,

i have another doubt in Signals that is how signals are different from events please explain this

thanks in advance

Hi,

How many signals at maximum we can connect to a single slot. If more than one how we can do that?
If any possible please explain this with example.

Please explain this

Thanks in Advance

Hi,

How many slots can we connect to a signal?If more than one how these slots will be executed (The Order of execution)
Any one Please explain this with example

Thanks in Advance

Hi,


what is dpointer?

Thank you it helps to me alot.

Hi,

What are the striking features of Qt?

Hi,

Thank you and i have another doubt If we are working with GTK what is the difference between Qt and GTK?

Hi,



How qt differs from other mobile development platforms like android?

I signed the application butwhne i deploy it on device its giving error as Certificate Not on phone or SIM.

For Signing the application i used keytool

1. keytool -genkeypair -keyalg rsa -keysize 2048 -keystore mykeystore.jks -alias kstore
2. keytool -certreq -file "C:\Program...