DDE SetLink Snafu
Posted on 1997-05-28
I attempt to use SetLink (with a DDEClientConv) to determine
whether or not an application is running, then I take action
depending on the result. I have tried this with ConnectMode set to ddeManual and ddeAutomatic but I get the same odd effect - namely, the application I am searching for gets executed if it isn't already running! Now, this doesn't happen all the time - I can write a very simple Delphi program to turn a program on and off that works as expected - but in the context of a larger, more complicated Delphi program I see this behaviour happenning. My question to you is, what might make SetLink behave this way? (actually I think it's the OpenLink implicit to a ddeAutomatic that causes it to happen. When I do it with ddeManual it is not the SetLink but the OpenLink which causes an instance of the
app to be fired up).