7/5/2023 0 Comments Wuala overlay icons![]() ![]() Normally, you should set the value to zero. There is no way for your handler to determine what priority values other handlers are using. The priority value set by GetPriority is not a reliable way to resolve conflicts between unrelated icon overlay handlers. If these rules do not resolve the conflict, the values assigned to the icon overlays by GetPriority determine priority. The Shell first uses an internal set of rules to determine the highest-priority icon overlay. The purpose of this priority value is to help the Shell resolve the conflict that arises when multiple icon overlays are specified for a single object. The value can range from zero to 100, where 100 is the lowest priority. It assigns a priority value to the handler's icon overlay. The GetPriority method is called only during initialization. Although the Shell uses the image that is cached in the system image list rather than loading the image from the file, an icon overlay is still identified by its file name and index. The method should return the same file name and index that it did during initialization. ico.Īfter initialization is complete, the Shell calls GetOverlayInfo when it needs to display the handler's icon overlay. Icon overlays can be contained in any of the standard file types, including. The Shell then adds the image to the system image list. The method returns the fully qualified path of the file that contains the icon overlay image, and its zero-based index within the file. The GetOverlayInfo method is first called during initialization. Instructions Step 1: Implementing GetOverlayInfo This interface has three methods: IShellIconOverlayIdentifier::GetOverlayInfo, IShellIconOverlayIdentifier::GetPriority, and IShellIconOverlayIdentifier::IsMemberOf. They export one interface in addition to IUnknown: IShellIconOverlayIdentifier. Icon overlay handlers are in-process Component Object Model (COM) objects, implemented as DLLs. ![]()
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