PFNProgressNotification callback function (wincodec.h)

Application defined callback function called when codec component progress is made.

Syntax

PFNProgressNotification Pfnprogressnotification;

HRESULT Pfnprogressnotification(
  LPVOID pvData,
  ULONG uFrameNum,
  WICProgressOperation operation,
  double dblProgress
)
{...}

Parameters

pvData

Type: LPVOID

Component data passed to the callback function.

uFrameNum

Type: ULONG

The current frame number.

operation

Type: WICProgressOperation

The current operation the component is in.

dblProgress

Type: double

The progress value. The range is 0.0 to 1.0.

Return value

Type: HRESULT

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

Remarks

An operation can be canceled by returning WINCODEC_ERR_ABORTED.

To register your callback function, query the encoder or decoder for the IWICBitmapCodecProgressNotification interface and call RegisterProgressNotification.

Requirements

See also

Reference

WICProgressNotification

WICProgressOperation