The target sends this message to a source window to request a rendering of an object. If the source returns FALSE, it may set flags in the DRAGTRANSFER structure that tell the target how to perform the rendering operation on its own, or how to retry the operation. If no flags are set, the source will not allow a rendering of the object.

If TRUE is returned, the message was processed by the recipient and the requested rendering will take place. The source will post a DM_RENDERCOMPLETE message to the target when the rendering is complete.

If FALSE is returned, either the message was not processed by the recipient, or the recipient could not perform the requested rendering. See fsReply in DRAGTRANSFER for more information.