CreateActCtxA function (winbase.h)
The CreateActCtx function creates an activation context.
HANDLE CreateActCtxA( PCACTCTXA pActCtx );
Pointer to an ACTCTX structure that contains information about the activation context to be created.
If the function succeeds, it returns a handle to the returned activation context. Otherwise, it returns INVALID_HANDLE_VALUE.
Set any undefined bits in dwFlags of ACTCTX to 0. If any undefined bits are not set to 0, the call to CreateActCtx that creates the activation context fails and returns an invalid parameter error code. The handle returned from CreateActCtx is passed in a call to ActivateActCtx to activate the context for the current thread.
The winbase.h header defines CreateActCtx as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.
|Minimum supported client||Windows XP [desktop apps only]|
|Minimum supported server||Windows Server 2003 [desktop apps only]|
|Header||winbase.h (include Windows.h)|