hwndClient (HWND) - input

Client's window handle.

pszAppName (PSZ) - input

Application name.

This is the name of the desired server application. If it is a zero-length string, any application can respond.

Application names may not contain slashes or backslashes.

pszTopicName (PSZ) - input

Topic name.

This is the name of the desired topic. If it is a zero-length string, each responding application will respond once for each topic which it can support.

pContext (PCONVCONTEXT) - input

Conversation context.

rc (BOOL) - returns

Success indicator.

TRUE

Successful completion. The WM_DDE_INITIATE message is successfully sent to all appropriate windows.
FALSE
Error occurred.

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