I have an excel sheet that has dde links to real time market data. I use a timer to watch the dde prices every second. Then submit orders when certain conditions are met. I tried an infinite loop with DoEvent in the middle which works for 5 seconds then freezes the workbook.
Is there a way to respond to changes in dde updates? Change event doesn’t detect them. It just detects when user makes manual change.
I was told that if I have conditional formatting there’s a way to pick up that event. So I can create a cell formula to turn true when my condition is met and then conditional format that cell to some formatting when it’s true and then pick up the format change event. Is that possible? If so how. Any suggestions would be appreciated.
To Clarify: I want to pick up an event IN VBA that would submit an order to trade a stock. The way i’m doing this right now is with a timer which loops over all the rows looking for true cell in the trigger column. Once found it shuts off the flag for that row (sets the true condition to false) and submits the order.
The problem is that one second is an eternity for fast moving stocks. So I need an event to be thrown in VBA when a cell in trigger column turns true so I can respond immediately and not wait for the second interval of the timer class.
As far as I know, you can’t call on the timer with a value of less than a second. If I could use milliseconds my problem would be solved. I’d just loop over the list every 10 milliseconds.
As far as I know I can’t create another thread in VBA. If I could I would make an infinite loop and put it to sleep after every iteration for 10 milliseconds or so.
As far as I know, I can’t pull dde directly into VBA or even .net for that matter since MSDN says it’s no longer supported.
I hope this clarifies. All suggestion are appreciated.
If you create a dummy function which has your DDE output cells as parameters then you should be able to respond to the
Worksheet_Calculateevent?I’m guessing that might work, but I’ve no experience with DDE: the DDE update may even trigger the Calculate event directly.