IVPBaseConfig::GetMaxPixelRate method (vpconfig.h)

Article
4/26/2023

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The GetMaxPixelRate method retrieves the maximum pixel rate the device will output for a given width and height.

Syntax

HRESULT GetMaxPixelRate(
  [in, out] LPAMVPSIZE pamvpSize,
  [out]     LPDWORD    pdwMaxPixelsPerSecond
);

Parameters

[in, out] pamvpSize

Pointer to an AMVPSIZE structure containing the desired width and height.

[out] pdwMaxPixelsPerSecond

Pointer to a variable that receives the maximum pixel rate, in pixels per second.

Return value

Returns an HRESULT value.

Remarks

This method retrieves the maximum pixels per second expected for a given size. If the device does not support this size, then it returns the rate and the size that it supports.

Include Dvp.h and Vptype.h before Vpconfig.h.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	vpconfig.h

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