Unable to display icon for item - Part 2

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    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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iron1103 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 February 2007 Location: Taiwan Status: Offline Points: 2	Post Options Post Reply Quote iron1103 Report Post Thanks(0) Quote Reply Topic: Unable to display icon for item - Part 2 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 !!

Oleg Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 21 May 2003 Location: United States Status: Offline Points: 11234	Post Options Post Reply Quote Oleg Report Post Thanks(0) Quote Reply Posted: 16 February 2007 at 9:12am
	Hi, If yo use CXTPImageManagerIconHandle xtpicon( hbmp ); ImageManager assumes that hbmp is 32bit alpha bitmap.
	Oleg, Support Team CODEJOCK SOFTWARE SOLUTIONS

iron1103 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 February 2007 Location: Taiwan Status: Offline Points: 2	Post Options Post Reply Quote iron1103 Report Post Thanks(0) Quote Reply Posted: 18 February 2007 at 12:31pm
	oh.. it could be the answer.. thank you.. i will check my bitmap files