The source is unable to perform
the rendering operation. The target may be allowed to retry. If the target
is allowed to retry and chooses not to, it must send a DM_ENDCONVERSATION
message to the source.
DMFL_RENDEROK
The
source has completed the rendering operation. When the target completes
its part of the rendering operation, it must post a DM_RENDERCOMPLETE message
to the source.
DMFL_RENDERRETRY
The
source has completed the rendering operation and will allow the target to
retry its part of the operation if it fails. This flag can be set in conjunction
with either the DMFL_RENDERFAIL or DMFL_RENDEROK flags.