Window -server events

diff -r ebc84c812384 -r 46218c8b8afa Symbian3/PDK/Source/GUID-EF7FF39E-929F-4767-B475-5D582D37BB32.dita --- a/Symbian3/PDK/Source/GUID-EF7FF39E-929F-4767-B475-5D582D37BB32.dita Thu Mar 11 15:24:26 2010 +0000 +++ b/Symbian3/PDK/Source/GUID-EF7FF39E-929F-4767-B475-5D582D37BB32.dita Thu Mar 11 18:02:22 2010 +0000 @@ -1,86 +1,86 @@ - - - - - -Window -server events -

Window server events are an important part of the application framework. -They allow applications to receive information regarding key presses, pointer -activities, application switches, and focus transitions.

Every application has at least a UI -controller, which is the root for all other controls owned by the application. -When an event occurs under the window server, the window server passes the -event to the UI controller and possible other controls, depending on the event -and the architecture of your application.

For more information on the window server, see Introduction to the window server.

The following window server events have a special function:

Key events
-
Layout -change events
-
Foreground -events
-
Pointer -events
-
System -events
-
Application-specific -events
-
Other -window server events
-

The framework provides different functions to handle each type of event -separately. You must implement these functions for the events to be handled -by your application.

All the window server event types are defined in the w32std.h header, -and are as follows:

-enum TEventCode - { - EEventNull, - EEventKey, - EEventKeyUp, - EEventKeyDown, - EEventModifiersChanged, - EEventPointer, - EEventPointerEnter, - EEventPointerExit, - EEventPointerBufferReady, - EEventDragDrop, - EEventFocusLost, - EEventFocusGained, - EEventSwitchOn, - EEventWindowGroupsChanged, - EEventErrorMessage, - EEventMessageReady, - EEventMarkInvalid, - EEventSwitchOff, - EEventKeySwitchOff, - EEventScreenDeviceChanged, - EEventFocusGroupChanged, - EEventCaseOpened, - EEventCaseClosed, - EEventWindowGroupListChanged, - EEventWindowVisibilityChanged, - EEventKeyRepeat=100, - EEventDirectScreenAccessBegin = 200, - EEventDirectScreenAccessEnd, - EEventHeartbeatTimerStateChange, - EEventUser = 1000, - }; - - + + + + + +Window +server events +

Window server events are an important part of the application framework. +They allow applications to receive information regarding key presses, pointer +activities, application switches, and focus transitions.

Every application has at least a UI +controller, which is the root for all other controls owned by the application. +When an event occurs under the window server, the window server passes the +event to the UI controller and possible other controls, depending on the event +and the architecture of your application.

For more information on the window server, see Introduction to the window server.

The following window server events have a special function:

Key events
+
Layout +change events
+
Foreground +events
+
Pointer +events
+
System +events
+
Application-specific +events
+
Other +window server events
+

The framework provides different functions to handle each type of event +separately. You must implement these functions for the events to be handled +by your application.

All the window server event types are defined in the w32std.h header, +and are as follows:

+enum TEventCode + { + EEventNull, + EEventKey, + EEventKeyUp, + EEventKeyDown, + EEventModifiersChanged, + EEventPointer, + EEventPointerEnter, + EEventPointerExit, + EEventPointerBufferReady, + EEventDragDrop, + EEventFocusLost, + EEventFocusGained, + EEventSwitchOn, + EEventWindowGroupsChanged, + EEventErrorMessage, + EEventMessageReady, + EEventMarkInvalid, + EEventSwitchOff, + EEventKeySwitchOff, + EEventScreenDeviceChanged, + EEventFocusGroupChanged, + EEventCaseOpened, + EEventCaseClosed, + EEventWindowGroupListChanged, + EEventWindowVisibilityChanged, + EEventKeyRepeat=100, + EEventDirectScreenAccessBegin = 200, + EEventDirectScreenAccessEnd, + EEventHeartbeatTimerStateChange, + EEventUser = 1000, + }; + + \ No newline at end of file