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Pointer capturing in Symbian C++ on touch-enabled devices

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Article Metadata
Tested with
Devices(s): Nokia 5800 XpressMusic
Compatibility
Platform(s): S60 5th Edition
Article
Keywords: CCoeControl::SetPointerCapture()
Created: tepaa (03 Oct 2008)
Last edited: hamishwillee (05 Jul 2012)

Contents

Overview

S60 5th Edition supports touch events. Pointer events are sent to the active UI application container control if the pointer/stylus is on the application.

The container control base class implementation CCoeControl::HandlePointerEvent() redirects events to its child controls. Remember to implement event handling into every custom UI control in your application.

If you want one UI control to receive all pointer events, use CCoeControl::SetPointerCapture().

MMP file

The following libraries are required:

LIBRARY cone.lib

Source file

void CMyContainer::EatAllEvents()
{
// This start eating all pointer events from other ui control in this application.
SetPointerCapture(ETrue);
}
void CMyContainer::ReleaseEventCatching()
{
// Disables pointer capturing
SetPointerCapture(EFalse);
}


Postconditions

One UI control receives all touch events.

See also

S60 5th Edition: Solitaire Game Example

S60 Platform: Image Converter Example

Handling pointer events in Symbian C++

Enabling drag events in Symbian C++ on touch-enabled devices

This page was last modified on 5 July 2012, at 11:25.
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