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RTD, how do you stop/start it from pulling in data?
I have a spreadsheet that pulls in prices using a mixture of DDE and RTD
links, now with a program called DDE Server I can stop/start the realtime links, but for any of the links in the sheets that have the =RTD in the formula's these continue to retrieve data regardless if the DDE Server is stopped. Now i know the DDE and RTD are different, but is there anyone that knows how to say Pause the retrieval of RTD links in the spreadsheet? The only thing I found on MSFT's Knowledgebase was that if you select the Manual calculation the data still comes through but it's cached locally, is there anyone that might know how to Stop/Start the RTD links? I know this is a programming Newsgroup, so I hope you'll share your thoughts, as alas I am not a programmer... |
#2
Posted to microsoft.public.excel.programming
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RTD, how do you stop/start it from pulling in data?
" m wrote in message ... I have a spreadsheet that pulls in prices using a mixture of DDE and RTD links, now with a program called DDE Server I can stop/start the realtime links, but for any of the links in the sheets that have the =RTD in the formula's these continue to retrieve data regardless if the DDE Server is stopped. Now i know the DDE and RTD are different, but is there anyone that knows how to say Pause the retrieval of RTD links in the spreadsheet? The only thing I found on MSFT's Knowledgebase was that if you select the Manual calculation the data still comes through but it's cached locally, is there anyone that might know how to Stop/Start the RTD links? I know this is a programming Newsgroup, so I hope you'll share your thoughts, as alas I am not a programmer... Hmm.. When you use RTD you call functions in a dll, right? Have you or your company made the dll? What happens when you stop a DDE link? Does it show the latest value or an empty string, 0 or similar? If you have made the dll, you could simply check the calculation mode within the called function. If it's manual, bail out. An alternative idea - I have no idea whether it would work - is to create a User defined function that wraps the RTD call. If it works, you could use an if statement to determine whether to call RTD or not. /Fredrik |
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