32bit png display using CXTPSkinImage

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I want to display background of control(or window) using CXTPSkinImage. 

below is my code.

CXTPSkinImage  m_BKImage;

BOOL bIsAlpha = TRUE;
HBITMAP hBitmap = CXTPImageManagerIcon::LoadBitmapFromResource( MAKEINTRESOURCE(nResourceID), &bIsAlpha );
m_BKImage.SetBitmap( hBitmap, bIsAlpha );

CXTPClientRect rcClient(this);
dc.FillSolidRect( &rcClient, RGB(0,0,0) );
CSize sizeImage = CSize( m_BKImage.GetWidth(), m_BKImage.GetHeight() );
m_BKImage.DrawImage( &dc, rcClient, CRect(0,0,sizeImage.cx,sizeImage.cy), CRect(0,0,0,0), ST_TRUESIZE, TRUE );

but i got strange result
some parts of image are strange( see white area in b) )

a) in photoshop

b) result

What is wrong?
Here is png file
uploads/20080425_011633_btn_play06_n.zip

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winrive Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 April 2008 Location: Korea, South Status: Offline Points: 3	Post Options Post Reply Quote winrive Report Post Thanks(0) Quote Reply Topic: 32bit png display using CXTPSkinImage Posted: 25 April 2008 at 1:19am
	I want to display background of control(or window) using CXTPSkinImage. below is my code. CXTPSkinImage m_BKImage; BOOL bIsAlpha = TRUE; HBITMAP hBitmap = CXTPImageManagerIcon::LoadBitmapFromResource( MAKEINTRESOURCE(nResourceID), &bIsAlpha ); m_BKImage.SetBitmap( hBitmap, bIsAlpha ); CXTPClientRect rcClient(this); dc.FillSolidRect( &rcClient, RGB(0,0,0) ); CSize sizeImage = CSize( m_BKImage.GetWidth(), m_BKImage.GetHeight() ); m_BKImage.DrawImage( &dc, rcClient, CRect(0,0,sizeImage.cx,sizeImage.cy), CRect(0,0,0,0), ST_TRUESIZE, TRUE ); but i got strange result some parts of image are strange( see white area in b) ) a) in photoshop b) result What is wrong? Here is png file uploads/20080425_011633_btn_play06_n.zip

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: 25 April 2008 at 6:20am
	Use ImageManager instead. XTPImageManager()->SetIcons(....); XTPImageManager()->GetIcon(1)->Draw(...); or Premultiply bitmap for SkinImage: hBitmap = CXTPImageManagerIcon::PreMultiplyAlphaBitmap(hBmp, &m_bAlpha); DeleteObject(hBmp);
	Oleg, Support Team CODEJOCK SOFTWARE SOLUTIONS

winrive Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 April 2008 Location: Korea, South Status: Offline Points: 3	Post Options Post Reply Quote winrive Report Post Thanks(0) Quote Reply Posted: 27 April 2008 at 7:43pm
	It works good Thanks a lot. Could you let me know another better apporach for dispalying alpha png for background?

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: 28 April 2008 at 12:43am
	As I worte better use some XTPImageManager. You can create some instance for your buttons: m_pImageManager = new CXTPImageManager(); m_pImageManager->SetIcons(...); ... m_pImageManager()->GetImage(x)->Draw(...);
	Oleg, Support Team CODEJOCK SOFTWARE SOLUTIONS