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Author |
Date |
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Roongrit Charoensupkul
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Jan 9, 2008 - 12:04 AM
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I’m running the sample application, RibbonBarMDI. When I click Print Preview menu, the alert dialog pop up. Here is the detail:
"unhandled exception at 0x7833d6eb in RibbonBarMDI-ud.exe:0xC0000005: Access violation reading location 0x024e41d4."
When I click break button, it stop in CExtPopupMenuWnd::OnTimer(...) function, in ID_TIMER_FADE_OUT_ANIMATION case. Please let me know how to solve this issue.
Thanks
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Technical Support
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Jan 9, 2008 - 9:52 AM
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Thank you for reporting this issue. To fix it please, update the following part of the CExtPopupMenuWnd::OnTimer() method: case ID_TIMER_FADE_OUT_ANIMATION:
{
if( m_nFadeOutAnimationStepIndex < m_nFadeOutAnimationStepCount )
{
CExtPopupMenuWnd * pPopup;
for( pPopup = this; pPopup != NULL; pPopup = pPopup->m_pWndParentMenu )
{
if( pPopup->GetSafeHwnd() == NULL )
continue;
ASSERT( g_PaintManager.m_pfnSetLayeredWindowAttributes != NULL );
if( (pPopup->GetStyle()&WS_VISIBLE) == 0 )
continue;
if( m_nFadeOutAnimationStepIndex == 0 )
{
pPopup->m_bHelperAnimationControllerDetected = true;
if( (pPopup->GetExStyle()&(__EXT_MFC_WS_EX_LAYERED|WS_EX_TRANSPARENT)) !=
(__EXT_MFC_WS_EX_LAYERED|WS_EX_TRANSPARENT)
)
pPopup->ModifyStyleEx( 0, (__EXT_MFC_WS_EX_LAYERED|WS_EX_TRANSPARENT) );
pPopup->EnableWindow( FALSE );
}
BYTE nAlpha = (BYTE)
::MulDiv(
m_nFadeOutAnimationStepCount - m_nFadeOutAnimationStepIndex - 1,
255,
m_nFadeOutAnimationStepCount
);
g_PaintManager.m_pfnSetLayeredWindowAttributes( pPopup->m_hWnd, 0, nAlpha, __EXT_MFC_LWA_ALPHA );
if( pPopup->m_ctrlShadow.GetSafeHwnd() != NULL
&& (pPopup->m_ctrlShadow.GetStyle()&WS_VISIBLE)
)
pPopup->m_ctrlShadow.UpdateWindowLayer( nAlpha );
CExtPaintManager::stat_PassPaintMessages();
}
m_nFadeOutAnimationStepIndex ++;
}
else
{
KillTimer( nIDEvent );
if( m_ctrlShadow.GetSafeHwnd() != NULL )
m_ctrlShadow.DestroyWindow();
CExtPopupMenuWnd * pPopup = this;
for( ; pPopup != NULL; )
{
VERIFY( pPopup->_BuildItems( NULL, true ) );
if( pPopup->m_ctrlShadow.GetSafeHwnd() != NULL
&& (pPopup->m_ctrlShadow.GetStyle()&WS_VISIBLE)
)
pPopup->m_ctrlShadow.DestroyWindow();
HWND hWnd = pPopup->m_hWnd;
pPopup = pPopup->m_pWndParentMenu;
::DestroyWindow( hWnd );
}
}
}
return;
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