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PidTagContainerFlags Canonical Property
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Contains a bitmask of flags describing capabilities of an address book container.
One or more of the following flags can be set for the bitmask:
The AB_FIND_ON_OPEN flag is highly recommended for containers used with online services or with slow connections to servers. When a container is opened that has AB_FIND_ON_OPEN set, a Find dialog box is presented to the user to restrict the displayed messaging users. Even a partial specification limiting the messaging users can dramatically speed up a display of the contents.
Either the AB_MODIFIABLE or AB_UNMODIFIABLE flag must be set. Both flags can be set to indicate that the container does not know whether it can be modified or not, for example if modification depends on the user's access rights. In this case, a client application must attempt a call and examine the return code to determine the container's capabilities. A client typically starts by examining AB_MODIFIABLE. If it is set, the client makes a call that attempts to modify the container and checks the return value.
The AB_MODIFIABLE flag does not indicate what types of entries can be added to the container. To determine this, the client should use the appropriate OpenProperty method to open the container's PR_CREATE_TEMPLATES (PidTagCreateTemplates) property. Opening PR_CREATE_TEMPLATES causes the container's one-off table to be returned, listing the kinds of entries that can be created in the container.