long keypress When program is run background??

[arun09]

sir
i m using Symbian c++ for first time i have to develop an application which can run in background. the application is to send on sms when a long keypressed.
Is this possible in Symbian c++?

please help me
thank you

[nuker85]

Hello,
yes it is possible
How_to_capture_Keyevents_in_thread_or_exe

Sending_SMS_in_S60_3rd_Edition_-_MTM

good luck

[A.A.M.]

Also you can check this article - Global Long Key Capture - Capture long presses

[arun09]

sir


please cheack this

// Include Files 
#ifdef EKA2
#include <eikstart.h>
#endif


#include "keyPress.h"
#include <e32base.h>
#include <e32std.h>
#include <e32cons.h> // Console

#include <apgwgnam.h> // CApaWindowGroupName


// Constants
// Text strings created by wizard
_LIT( KTextConsoleTitle, "Console" );
_LIT( KTextFailed, " failed, leave code = %d" );
_LIT( KTextPressAnyKey, "\n[press any key to exit]\n" );

// Key to listen to 
const TUint KKeyCode = EKeyLeftArrow;

// Capture KNumberOfPressesToCapture key presses
const TInt KNumberOfPressesToCapture = 3;

// Global Variables
// write all messages to this console
LOCAL_D CConsoleBase* console; 


EXPORT_C CApaApplication* NewApplication()
{
return new CkeyPress;
}




////////////////////////////////////
// CGlobalCapturer
////////////////////////////////////

// Constructor
CGlobalCapturer::CGlobalCapturer() :
CActive( EPriorityNormal )
{
// nothing
}

// Destructor
CGlobalCapturer::~CGlobalCapturer()
{
delete iWindowGroupName;
delete iWindowGroup;
iWsSession.Close();
}

// Cancel listening to key presses
void CGlobalCapturer::DoCancel()
{
iWindowGroup->CancelCaptureLongKey( iCaptureHandle );
iWindowGroup->CancelCaptureKey( iCaptureHandle );
}

void CGlobalCapturer::StartCapturingL() 
{
// Connect to the window server
User::LeaveIfError( iWsSession.Connect() );
// Create an invisible window group. Well, we'll make it invisible later
/** @todo Can ELeave be used with R-classes? */
iWindowGroup = new (ELeave) RWindowGroup ( iWsSession );
// @see RBlankWindow::Construct
iWindowGroup->Construct( (TUint32)iWindowGroup, EFalse );

// You cannot just call CaptureLongKey for the same key code
// You MUST call CaptureKey first
User::LeaveIfError( iCaptureHandle = iWindowGroup->CaptureKey( KKeyCode , 0, 0 ) );
// And finally capture long key presses
User::LeaveIfError( iLongCaptureHandle = iWindowGroup->CaptureLongKey( KKeyCode , KKeyCode, 0, 0, 0, 0 ) );
// Send created window to the background and hide it from the
// application switcher
iWindowGroup->SetOrdinalPosition(-1);
iWindowGroup->EnableReceiptOfFocus( EFalse );
iWindowGroupName = CApaWindowGroupName::NewL( iWsSession );
iWindowGroupName->SetHidden(ETrue);
iWindowGroupName->SetWindowGroupName( *iWindowGroup );

// Tell window server, that we are ready to receive events
iWsSession.EventReady( &this->iStatus );
CActiveScheduler::Add( this );
SetActive();
}

// Key press happened
void CGlobalCapturer::RunL()
{
if( iStatus == KErrNone ) 
{
// EEventKey received
console->Write( _L( "Captured key press\n" ) );
TWsEvent we;
iWsSession.GetEvent( we );

if( we.Key()->iCode == KKeyCode ) 
{
if( we.Key()->iRepeats == 0 )
{
console->Printf( _L( "Capture %i. Short key press\n" ), ++iCaptureCounter );
}
else
{
console->Printf( _L( "Capture %i. Long key press\n" ), ++iCaptureCounter );
}
}
else 
{
// This should never happen, but just to demonstrate how 
// it is possible to forward events to the default destination
TInt foregroundAppId = iWsSession.GetFocusWindowGroup();
iWsSession.SendEventToWindowGroup( foregroundAppId, we );
} // if iCode
if( iCaptureCounter == KNumberOfPressesToCapture ) 
{
// exit MainL() inner loop
CActiveScheduler::Stop();
}
else 
{
iWsSession.EventReady( &iStatus );
SetActive();
} // if captured enough times
} // if iStatus
else 
{
// Framework notified of some error
/** @todo Handle error if required */
}
}

// Main function. Is TRAPD outside, in Start()
LOCAL_C void DoStartL()
{
// Create active scheduler (to run active objects)
CActiveScheduler* scheduler = new (ELeave) CActiveScheduler();
CleanupStack::PushL(scheduler);
CActiveScheduler::Install(scheduler);

// Call main function with command line
// Command line is not really needed for this demo, but
// why not to demonstrate this either?
/* TBuf<256> cmdLine;
RProcess().CommandLine( cmdLine );
MainL( cmdLine );
*/
// Delete active scheduler
CleanupStack::PopAndDestroy(scheduler);
}

// Global Functions

GLDEF_C TInt Start()
{
// Create cleanup stack
__UHEAP_MARK;
CTrapCleanup* cleanup = CTrapCleanup::New();

// Create output console
TRAPD(createError, console = Console::NewL(KTextConsoleTitle, TSize(KConsFullScreen,KConsFullScreen)));
if (createError)
return createError;

// Run application code inside TRAP harness, wait keypress when terminated
TRAPD(mainError, DoStartL());
if (mainError)
console->Printf(KTextFailed, mainError);
console->Printf(KTextPressAnyKey);
console->Getch();

delete console;
delete cleanup;
__UHEAP_MARKEND;
return KErrNone;
}


// Exported Functions

#ifdef __WINS__
EXPORT_C TInt WinsMain(TAny* /*aParam*/)
{
return Start();
}
#else
GLDEF_C TInt E32Main()
{
return Start();
}
#endif

#ifndef EKA2

GLDEF_C TInt E32Dll(TDllReason )
{
return KErrNone;
}

#else

GLDEF_C TInt E32Main()
{
return EikStart::RunApplication( NewApplication );
}

#endif

// Local Functions
LOCAL_C void MainL(const TDesC& /*aArgs*/)
{
console->Write( _L( "Starting key capturing\n" ) );
// Create capturer
CGlobalCapturer* capturer = new (ELeave) CGlobalCapturer();
CleanupStack::PushL( capturer );
// And start capturing
capturer->StartCapturingL();

// In a real application you should use CActiveSchedulerWait,
// but in this small demo application we know that there is just
// a single inner loop and no CActiveSchedulerWait "protection" is
// needed
CActiveScheduler::Start();
// Cleanup. Demo completed
CleanupStack::PopAndDestroy( capturer );
}






// End of file

I am having an error on this programme. Please retify it an d help me in this critical situation. I have attached the error message below.

Creation Time Description Resource Path Location Type
1235440694593 *** missing separator. Stop.[\Symbian\9.2\S60_3rd_FP1_3\EPOC32\BUILD\Symbian\Carbide\workspace3\keyPress\group\KEYPRESS\GCCE\KEYPRESS.GCCE] keyPress line 94 C/C++ Problem

[arun09]

sir


i have one doubt is it possible to import code warrier to carbide c++

[amitkankani]

if you mean code warrior project to carbide project, why not import the inf file ?

[arun09]

sir


please give me KStandbyScreenAppIdDevice of N80



thank you

[arun09]

if you mean code warrior project to carbide project, why not import the inf file ?

sir
i have written a program for sending a message when long key pressed. which works on my N95 StandBy Screen App id
are "const TInt KStandbyScreenAppIdDevice = 0x12;" but is not working my N80 please help me.

[sumit.rathi]

sir
i m using Symbian c++ for first time i have to develop an application which can run in background. the application is to send on sms when a long keypressed.
Is this possible in Symbian c++?

please help me
thank you

Hi Arun,
I am Sure it's possible.Try to use RWindowGroup API's function CaptureLongKey .

Regards,
Sumit

[hemrajn]

Hi arun
This link will help you to get the solution for captureing the long key
http://discussion.forum.nokia.com/fo...d.php?t=145116
Try to create application using active objects.

[neel.soft]

HI,


FOR CAPTURING A LONG KEY PRESS U NEED TO CAPTURE THAT KEY FIRST AND THEN CAPTURE IT FOR LONG PRESSES.

1.)// first capture the key

iWindowGroup->CaptureKey( ); //iWindowGroup : OBJECT OF RWindowGroup class

2.)
// And finally capture long key presses
iWindowGroup->CaptureLongKey( ); //iWindowGroup :OBJECT OF RWindowGroup class

[arun09]

Sir
thank you for your replay. sir i m using Carbide c++ IDE i cannot create .sis file from .pkg file

[A.A.M.]

i m using Carbide c++ IDE i cannot create .sis file from .pkg file

What errors you are getting?

[sumit.rathi]

Sir
thank you for your replay. sir i m using Carbide c++ IDE i cannot create .sis file from .pkg file

R u getting any particular message for any particular line in your pkg.

[arun09]

the error message are:
Error : Cannot find file : $(EPOCROOT)Epoc32\release\$(PLATFORM)\$(TARGET)\myproject.exe


myproject_EKA2.pkg(23) : error: file I/O fault.