diff -r 51a74ef9ed63 -r ae94777fff8f Symbian3/SDK/Source/GUID-ACC71D0D-32C4-5DAF-B4D9-66013A073FD4-GENID-1-8-1-6-1-1-4-1-8-1-4-1-8-1.dita --- a/Symbian3/SDK/Source/GUID-ACC71D0D-32C4-5DAF-B4D9-66013A073FD4-GENID-1-8-1-6-1-1-4-1-8-1-4-1-8-1.dita Wed Mar 31 11:11:55 2010 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,50 +0,0 @@ - - - - - -Synchronising -FEP InstantiationsThis topic describes how to synchronize settings across different -instances of the same FEP. -

As mentioned previously, the FEP architecture has been designed so that -each running application has its own instance of the current FEP. CCoeFep provides -support for synchronizing attributes across all of these instances, so that -when one instance changes the value of an attribute, the others are automatically -updated. In order for this to happen, the FEP has to do several things.

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The purpose of the SynchronouslyExecuteSettingsDialogL() exported -function, which the FEP must provide, is to launch a dialog that allows the -user to change any settings specific to that FEP. As mentioned above, there -is no guarantee that any instance of that particular FEP exists when this -function is called. In order for the dialog launched by SynchronouslyExecuteSettingsDialogL() to -be able to edit settings that are required to be synchronized across all running -applications, the dialog class must derive from MFepAttributeStorer. -The dialog class’ implementation of MFepAttributeStorer ’s -virtual functions should be the same as the CCoeFep -derived -class’ implementation of them. For an example of this, see TFEP1Plugin. When -the dialog is launched it needs to call MFepAttributeStorer::ReadAllAttributesL() to -correctly initialize all the settings. Conversely, the settings in the dialog -are committed by calling MFepAttributeStorer::WriteAttributeDataAndBroadcastL().

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