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Unable to display icon for item - Part 2 |
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iron1103 
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Joined: 16 February 2007 Location: Taiwan Status: Offline Points: 2 |
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 Topic: Unable to display icon for item - Part 2Posted: 18 February 2007 at 12:31pm |
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oh.. it could be the answer..
thank you.. i will check my bitmap files
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Oleg
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Joined: 21 May 2003 Location: United States Status: Offline Points: 11234 |
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Posted: 16 February 2007 at 9:12am |
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Hi,
If yo use CXTPImageManagerIconHandle xtpicon( hbmp ); ImageManager assumes that hbmp is 32bit alpha bitmap.
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Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS |
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iron1103
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Joined: 16 February 2007 Location: Taiwan Status: Offline Points: 2 |
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Posted: 16 February 2007 at 7:05am |
 Hi,Here is my problem, when I use SetIcon() in this way, it works fine,
CXTPTaskPanelGroupItem *pItem;
CXTPImageManagerIconHandle hicon( AfxGetApp()->LoadIcon(IDI_ICON) );
m_TaskPanel.GetImageManager()->SetIcon( hicon, pItem->GetID() ); But in this way, it won't display the icon,
CXTPTaskPanelGroupItem *pItem;
HICON hicon = AfxGetApp()->LoadIcon(IDI_VEC);
HBITMAP hbmp = MyFunction( hicon );
CXTPImageManagerIconHandle xtpicon( hbmp );
m_TaskPanel.GetImageManager()->SetIcon( xtpicon, pItem->GetID() );
And I chased the source code,
CXTPImageManagerIcon::PreMultiplyAlphaBitmap()
{
TRY
{
hBitmapAlpha = CreateDIBSection(dcSrc, pBitmapInfo, DIB_RGB_COLORS, (void**)&pDest, NULL, 0);
}
}
I use CDC.BitBlt() to see the hBitmapAlpha, it's totally black.
Did I miss something ?? Please help me.
 Happy Chinese New Year !! |
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