Tizen - Overlap app UI over lock screen - alarm

Question

I'm currently building a native app on Tizen latest SDK and it needs to be programmed in C language.
In my app I need to build a kind of "alarm clock" that will go off in a certain time and if the device is asleep my app will need to woke it up. I can do this already but my app is not shown in the lock screen. I want to know if you guys have any idea of how I can wake up the screen AND make my app ui's go overlapping the lock screen natively and in using the new SDK that it is C based.
Thank you!

Answer 1

For starters, Tizen Native API is in C++, not C.
As for your question, on https://developer.tizen.org/ you can find examples:
how to show popup on locked screen:
Popup pPopup = new (std::nothrow) Popup();
pPopup->Construct(true, Dimension(600, 750));
if (Tizen::Shell::LockManager::GetInstance()->IsLocked())
{
// 'http://tizen.org/privilege/uimanager' platform privilege required
pPopup->SetZOrderGroup(WINDOW_Z_ORDER_GROUP_HIGHEST);
}
how to unlock screen:
if (Tizen::Shell::LockManager::GetInstance()->IsLocked())
{
// 'http://tizen.org/privilege/lockmanager' platform privilege required
Tizen::Shell::LockManager::GetInstance()->Unlock();
UiApp::GetInstance()->GetFrameAt(0)->SetZOrderGroup(WINDOW_Z_ORDER_GROUP_NORMAL);
}