Rockwell Automation 2706-P42_P43_P44_P72_P74_P92_P94 InView Marquee Message Display User Manual - Manual (Page 128)

Publication 2706-UM016D-EN-P - March 2006
5-10 InView Control and InView Control API
DownloadMessage Description This method is used to download a simple
message to the display. The download
message command will be sent to the
display address set by the DisplayAddress
property. DisplayAddress should be set
before calling this method.
DownloadMessageEx Syntax HRESULT DownloadMessageEx
(BSTR bstrMessage)
Parameters bstrMessage
A complete InView protocol formatted
download message string.
Return Value S_OK - Success
E_FAIL - Failure
Description This method is for advanced users only and
requires knowledge of the InView Protocol.
It allows you to download a message of any
complexity to the display. The download
message command will be sent to the
display address set by the DisplayAddress
property. DisplayAddress should be set
before calling this method.
AddMessage Syntax HRESULT AddMessage
(short nMessageNumber)
Parameters nMessageNumber
The number of the message to be added to
the queue of running messages.
Return Value S_OK - Success
E_FAIL - Failure
Description This method is used to trigger a message to
run on the display. A message of lower
priority will not be visible if a higher priority
message is running. The message to trigger
must be downloaded to the display before it
can be triggered. The maximum number of
messages that can be queued to run is 60.
The add message command will be sent to
the display address set by the
DisplayAddress property. DisplayAddress
should be set before calling this method.
Methods
InViewCtrl Methods Properties Description