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CBasePropertyPage.OnApplyChanges method

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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 OnApplyChanges method is called when the user applies changes to the property page.

Syntax

virtual HRESULT OnApplyChanges();

Parameters

This method has no parameters.

Return value

The base-class implementation returns S_OK.

Remarks

The CBasePropertyPage::Apply method calls OnApplyChanges if the CBasePropertyPage::m_bDirty flag is TRUE. Override OnApplyChanges to process the changes and reset m_bDirty to FALSE.

Examples

HRESULT CMyProp::OnApplyChanges(void)
{
    ASSERT(m_pOwningFilter != NULL);
    return m_pOwningFilter->SetSomeProperty(&m_lNewVal);
}

Requirements

Requirement Value
Header
Cprop.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CBasePropertyPage Class