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IFrameEventsRequest::RequestAsync method

  • Article

An asynchronous request to get specified information about a single specified frame.

Syntax

HRESULT RequestAsync(
   DWORD                  frameNumber,
   DWORD                  numColumns,
   DWORD []               count1_columns,
   IFrameEventsCallback * requestCallback,
   DWORD                  requestCookie,
   DWORD                  progressIntervalMsecs
);

Parameters

frameNumber
The specified frame.

numColumns
The specified columns (fields).

count1_columns
The address of callback used to notify the host of results.

requestCallback
The address of callback used to notify the host of results.

requestCookie
A cookie that uniquely identifies the request, and can be used to signal for it to be cancelled.

progressIntervalMsecs
Not used.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

Header

Vspixengine.h

See also

IFrameEventsRequest