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IFileOperationProgressSink::UpdateProgress method (shobjidl_core.h)

  • Άρθρο

Provides an estimate of the total amount of work currently done in relation to the total amount of work.

Syntax

HRESULT UpdateProgress(
  [in] UINT iWorkTotal,
  [in] UINT iWorkSoFar
);

Parameters

[in] iWorkTotal

Type: UINT

An estimate of the amount of work to be completed.

[in] iWorkSoFar

Type: UINT

The portion of iWorkTotal that has been completed so far.

Return value

Type: HRESULT

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

Remarks

The iWorkTotal and iWorkSoFar values are "points" or estimates of the amount of work to be done, and how much is completed. They are not specified in any particular units, but should be roughly proportional to how much time the total process takes. For example, to copy one small file might be considered two points, and a large file might be considered ten points. If a process is performing an operation that copies five small files and one large file, and the process has completed four of the small files, iWorkSoFar would be eight points (4 x 2 = 8) and iWorkTotal would be twenty points (5 x 2 + 10 = 20), so the estimate would be 8 of 20 points (or 40%) complete.

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2008 [desktop apps only]
Target Platform Windows
Header shobjidl_core.h (include Shobjidl.h)