long keypress When program is run background??

[arun09]

sir

i checked this article - Global Long Key Capture - Capture long presses

attcah .zip folder download. .sis file its not working m N80 phone .this .sis file are working which model

[A.A.M.]

As you can see attached example application is designed to S60 2nd ed., so it can't be installed on S60 3rd ed. device.

[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
please cheack it

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

[skumar_rao]

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

Might be you want to check that your build system is correct, particularly the perl Version.

[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]

As you can see attached example application is designed to S60 2nd ed., so it can't be installed on S60 3rd ed. device.

the application are installed my N72 but not working

[arun09]

I have compile the long keypress program the following errors occured

please help to rectify it.

Errors caused tool to abort.
make[1]: *** [\Symbian\9.2\S60_3rd_FP1_3\EPOC32\RELEASE\WINSCW\UDEB\presskey.exe] Error 1
make: *** [TARGETPRESSKEY] Error 2
make -j 4 -s -r -f "\Symbian\9.2\S60_3rd_FP1_3\EPOC32\BUILD\Symbian\Carbide\workspace3\presskey\group\PRESSKEY\WINSCW\PRESSKEY.WINSCW" UDEB
mwldsym2.exe: Undefined symbol: 'RWsSession::RWsSession(void) (??0RWsSession@@QAE@XZ)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:45
mwldsym2.exe: Undefined symbol: 'int RWsSession::Connect(void) (?Connect@RWsSession@@QAEHXZ)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:47
mwldsym2.exe: Undefined symbol: 'RWindowGroup::RWindowGroup(class RWsSession &) (??0RWindowGroup@@QAE@AAVRWsSession@@@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:54
mwldsym2.exe: Undefined symbol: 'int RWindowGroup::Construct(unsigned long, int) (?Construct@RWindowGroup@@QAEHKH@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:55
mwldsym2.exe: Undefined symbol: 'long RWindowGroup::CaptureKeyUpAndDowns(unsigned int, unsigned int, unsigned int) (?CaptureKeyUpAndDowns@RWindowGroup@@QAEJIII@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:60
mwldsym2.exe: Undefined symbol: 'void RWsSession::EventReady(class TRequestStatus *) (?EventReady@RWsSession@@QAEXPAVTRequestStatus@@@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:63
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:104
mwldsym2.exe: Undefined symbol: 'void RWindowTreeNode::SetOrdinalPosition(int) (?SetOrdinalPosition@RWindowTreeNode@@QAEXH@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:67
mwldsym2.exe: Undefined symbol: 'void RWindowGroup::EnableReceiptOfFocus(int) (?EnableReceiptOfFocus@RWindowGroup@@QAEXH@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:68
mwldsym2.exe: Undefined symbol: 'class CApaWindowGroupName * CApaWindowGroupName::NewLC(class RWsSession const &) (?NewLC@CApaWindowGroupName@@SAPAV1@ABVRWsSession@@@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:69
mwldsym2.exe: Undefined symbol: 'void CApaWindowGroupName::SetHidden(int) (?SetHidden@CApaWindowGroupName@@QAEXH@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:70
mwldsym2.exe: Undefined symbol: 'int CApaWindowGroupName::SetWindowGroupName(class RWindowGroup &) const (?SetWindowGroupName@CApaWindowGroupName@@QBEHAAVRWindowGroup@@@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:71
mwldsym2.exe: Undefined symbol: 'void RWsSession::GetEvent(class TWsEvent &) (?GetEvent@RWsSession@@QAEXAAVTWsEvent@@@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:79
mwldsym2.exe: Undefined symbol: 'int RWsSession::GetFocusWindowGroup(void) (?GetFocusWindowGroup@RWsSession@@QAEHXZ)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:101
mwldsym2.exe: Undefined symbol: 'int RWsSession::SendEventToWindowGroup(int, class TWsEvent const &) (?SendEventToWindowGroup@RWsSession@@QAEHHABVTWsEvent@@@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:102
mwldsym2.exe: Undefined symbol: 'void RWsSession::EventReadyCancel(void) (?EventReadyCancel@RWsSession@@QAEXXZ)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:111
mwldsym2.exe: Undefined symbol: 'void RWindowTreeNode::Close(void) (?Close@RWindowTreeNode@@QAEXXZ)'
mwldsym2.exe: referenced from 'void CleanupClose<class RWindowGroup>::Close(void *) (?Close@?$CleanupClose@VRWindowGroup@@@@CAXPAX@Z)' in e32base.inl:3140
mwldsym2.exe: Undefined symbol: 'void RWsSession::Close(void) (?Close@RWsSession@@QAEXXZ)'
mwldsym2.exe: referenced from 'void CleanupClose<class RWsSession>::Close(void *) (?Close@?$CleanupClose@VRWsSession@@@@CAXPAX@Z)' in e32base.inl:3140

Total Time: 2 sec

***Invoking abld command
perl.exe -S ABLD.PL \Symbian\Carbide\workspace3\presskey\group\ final winscw udeb
make -r -f "\Symbian\9.2\S60_3rd_FP1_3\EPOC32\BUILD\Symbian\Carbide\workspace3\presskey\group\WINSCW.make" FINAL CFG=UDEB VERBOSE=-s

Total Time: 2 sec

***Invoking abld command
perl.exe -S ABLD.PL \Symbian\Carbide\workspace3\presskey\group\ test export
make -r -f "\Symbian\9.2\S60_3rd_FP1_3\EPOC32\BUILD\Symbian\Carbide\workspace3\presskey\group\EXPORTtest.make" EXPORT VERBOSE=-s
Nothing to do

Total Time: 2 sec

***Errors were detected in build. See the Problems or Console view for details.

Total Time: 2 sec

[A.A.M.]

Looks like you forget to link against ws32.lib. Add to .mmp:

LIBRARY ws32.lib

[arun09]

thank you sir for your replay

i added LIBRARY ws32.lib in .mmp as you said the 70% errors are corrected
but still i have the following errors


Errors caused tool to abort.
make[1]: *** [\Symbian\9.2\S60_3rd_FP1_3\EPOC32\RELEASE\WINSCW\UDEB\presskey.exe] Error 1
make: *** [TARGETPRESSKEY] Error 2
make -j 4 -s -r -f "\Symbian\9.2\S60_3rd_FP1_3\EPOC32\BUILD\Symbian\Carbide\workspace3\presskey\group\PRESSKEY\WINSCW\PRESSKEY.WINSCW" UDEB
presskey.UID.CPP
mwldsym2.exe: Undefined symbol: 'class CApaWindowGroupName * CApaWindowGroupName::NewLC(class RWsSession const &) (?NewLC@CApaWindowGroupName@@SAPAV1@ABVRWsSession@@@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:69
mwldsym2.exe: Undefined symbol: 'void CApaWindowGroupName::SetHidden(int) (?SetHidden@CApaWindowGroupName@@QAEXH@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:70
mwldsym2.exe: Undefined symbol: 'int CApaWindowGroupName::SetWindowGroupName(class RWindowGroup &) const (?SetWindowGroupName@CApaWindowGroupName@@QBEHAAVRWindowGroup@@@Z)'
mwldsym2.exe: referenced from 'void MainL(void) (?MainL@@YAXXZ)' in presskey.cpp:71

[A.A.M.]

Try to add to .mmp

LIBRARY apgrfx.lib

[arun09]

thank you somuch for your help

almost all the errors are rectified
when the program is running on emulator

" Application Closed ncnlist kern-EXEC 3" is show

the build configration used is "Emulator Debug(WINSCW)[S60_3rd_FP1]"

[A.A.M.]

Check this - NCNList KERN-EXEC 3 panic when starting the S60 3rd Edition, FP1 emulator

[arun09]

sir , here i m including my "keypress" program when 5 is long pressed the sms is to be sent please tell me what procedure should i follow


#include "presskey.h"
#include <e32base.h>
#include <e32std.h>
#include <e32cons.h>
#include <w32std.h>
#include <apgwgnam.h>
// Constants

_LIT(KTextConsoleTitle, "Console");
_LIT(KTextFailed, " failed, leave code = %d");
_LIT(KTextPressAnyKey, " [press any key]\n");

// Global Variables

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


// Local Functions

LOCAL_C void MainL()
{
//
// add your program code here, example code below
//

// connect to window server
TTime iStartTime;
TTime iEndTime;
TTimeIntervalMicroSeconds iInterval;
TTimeIntervalMicroSeconds minIntervalRequiered = TTimeIntervalMicroSeconds(2 * 1000 * 1000); //two seconds

// connect to window server
RWsSession ws;
TKeyCode keyCode = EKeyApplication0;
User::LeaveIfError(ws.Connect());
CleanupClosePushL(ws);


TRequestStatus status;

// create a window group for the thread
RWindowGroup wg(ws);
wg.Construct((TUint32)&wg, EFalse);
CleanupClosePushL(wg);


// capture a key up and down events
User::LeaveIfError(wg.CaptureKeyUpAndDowns(EStdKeyApplication19, 0, 0)); // scan code of camera button is EStdKeyApplication19

// listen for the key presses
ws.EventReady(&status);


// hide this window group from the app switcher
wg.SetOrdinalPosition(-1);
wg.EnableReceiptOfFocus(EFalse);
CApaWindowGroupName* wn=CApaWindowGroupName::NewLC(ws);
wn->SetHidden(ETrue);
wn->SetWindowGroupName(wg);


// handle key events
for(; {
User::WaitForAnyRequest(); //wait for events
if (status.Int()==KErrNone) { //if not error
TWsEvent e;
ws.GetEvent(e);

TInt eventType;
eventType = e.Type();

if(eventType == EEventKeyDown){
iStartTime.UniversalTime(); //key down time
}
else if (eventType == EEventKeyUp){
iEndTime.UniversalTime(); //key up time
iInterval = iEndTime.MicroSecondsFrom(iStartTime); //difference = duration of the press
if (iInterval> minIntervalRequiered)
{
console = Console::NewL(KTextConsoleTitle, TSize(KConsFullScreen,KConsFullScreen));
console->Write(_L("Long key press, press 5 to end daemon\n"));
keyCode = console->Getch();
delete console;
}
}

// if not ours, then send to top window group
// note that this breaks key repeat :-(
TInt wgid=ws.GetFocusWindowGroup();
ws.SendEventToWindowGroup(wgid, e);
}
ws.EventReady(&status);

// stop condition
if (keyCode == EStdKeyF11){ break; }
}

// clean up
ws.EventReadyCancel();
CleanupStack::PopAndDestroy(3); //ws, wg, wn





//console->Write(_L("Hello, world!\n"));
}

LOCAL_C void DoStartL()
{
// Create active scheduler (to run active objects)
CActiveScheduler* scheduler = new (ELeave) CActiveScheduler();
CleanupStack::PushL(scheduler);
CActiveScheduler::Install(scheduler);

MainL();

// Delete active scheduler
CleanupStack::PopAndDestroy(scheduler);
}

// Global Functions

GLDEF_C TInt E32Main()
{
// 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;
}

[arun09]

sir,
when the program is running in emulator there is no output is this only work in phone