Load PNG From resource with CodeJock

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   Hi,
which class can load a PNG file from dll resources and make HBITMAP for resource ?!?

I tried CXTPImageManager and CXTPImageIcon and CXTPImageIconHandle but I can't load my resource. I have HINSTANCE handle and when I try to load PNG file with handle The HBITMAP is NULL.

please help me,
Thanks,
Best Regards.

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
barobax Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 07 May 2008 Status: Offline Points: 117	Post Options Post Reply Quote barobax Report Post Thanks(0) Quote Reply Topic: Load PNG From resource with CodeJock Posted: 20 April 2009 at 7:55am
	Hi, which class can load a PNG file from dll resources and make HBITMAP for resource ?!? I tried CXTPImageManager and CXTPImageIcon and CXTPImageIconHandle but I can't load my resource. I have HINSTANCE handle and when I try to load PNG file with handle The HBITMAP is NULL. please help me, Thanks, Best Regards.

rdhd Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 13 August 2007 Location: United States Status: Offline Points: 954	Post Options Post Reply Quote rdhd Report Post Thanks(0) Quote Reply Posted: 20 April 2009 at 3:27pm
	After we moved to V12 we had problems getting bitmaps. We had to create a CXTPImageManagerIconHandle and call CopyHandle. The input was the CXTPImageManagerIconHandle CXTPImageManagerIconHandle IconCopy; IconCopy.CopyHandle(IconHandle); We could then get the HBITMAP. However, with png files, the returned bitmap was rendered with a black background and I could not find a way to control that. So we then used the CXTPImageManagerIconHandle and createded a compatible DC and drew into the DC. It went something like this: CDC pDCSrc = GetDC(); if(pDCSrc) { HDC hDCMem = CreateCompatibleDC( NULL ); HBITMAP hBmpOld = 0; HBRUSH hBrush = CreateSolidBrush( Background ); // create a bitmap that will be used after the // icon is drawn hbm = CreateCompatibleBitmap( pDCSrc->m_hDC, nWidth, nWidth ); hBmpOld = (HBITMAP)SelectObject( hDCMem, hbm ); CPoint pt; pt.x = pt.y = 0; HBRUSH hBrushOld = (HBRUSH)SelectObject( hDCMem, hBrush ); HPEN hPenOld = (HPEN)SelectObject(hDCMem,GetStockObject(NULL_PEN)); Rectangle( hDCMem, 0, 0, nWidth+1, nWidth+1 ); CSize szIcon; szIcon.cx = szIcon.cy = nWidth; bool bDrawComposited = false; CDC tmpDC; tmpDC = CDC::FromHandle( hDCMem ); IconHandle.Draw( tmpDC, pt, szIcon, bDrawComposited ); SelectObject( hDCMem, hBrushOld ); SelectObject( hDCMem, hPenOld ); SelectObject( hDCMem, hBmpOld ); DeleteObject( hBrush ); DeleteDC( hDCMem ); DeleteDC( pDCSrc->m_hDC);