[in] A handle to the parent window of the progress indicator.
[in] A bitmask of flags that controls how the progress object should calculate progress. The following flag can be set:
Progress is calculated for a top-level item, such as a parent folder. The progress object should use the values in the IMAPIProgress::Progress method's ulCount and ulTotal parameters — which indicate the current item and the total items in the operation, respectively — to increment the progress indicator for the operation.
[out] A pointer to a pointer to the progress object.
The IMAPISupport::DoProgressDialog method is implemented for address book and message store provider support objects. These providers call DoProgressDialog to access the MAPI implementation of the IMAPIProgress interface, which calculates the progress information and displays a standard dialog box.