How to capture long 5 key press in console application running in background?

[rohanwaugh]

hi all,

i have developed GUI application in which my application running in background is detecting a long key press for key '5'.I have used active object and observer class in that code.Now i want to do same in console application.Is it must to use active object in console application ??

i don know much about console application.Anybody has any idea as to how to do it??

Thanks in advance.

ROhanwaugh.

[rohanwaugh]

hi all,

i am attaching my .cpp file here in which i haven't used active object,but it is detecting only single key press not long key press.


/*
============================================================================
Name : ConsoleKeyCapture.cpp
Author : Rohan
Copyright : Your copyright notice
Description : Exe source file
============================================================================
*/

// Include Files

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

void CaptureKey()
{

RWsSession ws;
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
User::LeaveIfError(wg.CaptureKey('5',0,0));
User::LeaveIfError(wg.CaptureLongKey('5','5',0,0,0,ELongCaptureNormal));


// listen for the key presses[[Category:Connectivity]]
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();
if (status.Int()==KErrNone)
{
TWsEvent e;
ws.GetEvent(e);

TInt c;
TKeyEvent* aKeyEvent=e.Key();//[[Category:UI]]
c=aKeyEvent->iCode;
console->Write(_L("5 key press is detected!\n"));

// do something with keypress

// 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
}

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






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


CaptureKey();
}

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;
}


Thanks.regards.

Rohanwaugh.

[akshay.raikwar]

hi all,

i have developed GUI application in which my application running in background is detecting a long key press for key '5'.I have used active object and observer class in that code.Now i want to do same in console application.Is it must to use active object in console application ??

i don know much about console application.Anybody has any idea as to how to do it??

Thanks in advance.

ROhanwaugh.

Hi Rohan,

I am trying to develop a GUI app which should be able to capture long press key event in background.
Can u please elaborate how you did the same in your app.
If you could provide code snippets, that would be more helpful.

Thanks in advance.

- Akshay