Pointer capturing in Symbian C++ on touch-enabled devices
|ID||Creation date||September 29, 2008|
|Platform||S60 5th Edition||Tested on devices Nokia 5800 XpressMusic|
|Category||Symbian C++||Subcategory||Touch UI|
|Keywords (APIs, classes, methods, functions): CCoeControl::SetPointerCapture()|
S60 5th Edition supports touch events. Pointer events are sended to the active ui application container control if pointer/stylus is on the application.
Container control base class implementation CCoeControl::HandlePointerEvent() redirects events to its child controls. Child control receives events if its borders (TRect) are inside pointer event. You have to remember implement event handling CCoeControl::HandlePointerEvent() into every ui controls in your application.
If you want that one ui control receives all pointer events, it can be done by CCoeControl::SetPointerCapture()
The following libraries are required:
// This start eating all pointer events from other ui control in this application.
// Disables pointer capturing
On ui contol receives all touch events.