LPPICTUREDISP -- CPictureHolder --- How to release memory?
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Hi, I've been working on an image based application. I'm using VB and VC++ to work with the images. Both are activex controls. I created a property like Get/SetActivePicture(LPPICTUREDISP pPicture). The code is given below. I'm facing memory problems. Can someone help me how can I release the memory from VC++ after I use the picture object? Thanks in advance .. I can't release the component until I solve this issue. Pls. somebody help me. The implemenation in VB is like this ... After using this, the virtual memory has been increasing each time ... the performance became too slow !!! :( .... PicEd.Open("C:\Temp.bmp") set PicEd.ActivePicture = Picture1.Picture PicEd.RotateBy(90) set Picture1.Picture = PicEd.ActivePicture() .... //---------------------------------------------------------------------- void CPicEdCtrl::SetActivePicture(LPPICTUREDISP newValue) { // TODO: Add your property handler here if (newValue == NULL) return; try { HBITMAP hBMP; HRESULT lResult; newValue->AddRef (); m_Pic.SetPictureDispatch(newValue); newValue->Release(); lResult = m_Pic.m_pPict->get_Handle((OLE_HANDLE FAR *) &hBMP); //CxImage* image; image->CreateFromHBITMAP((HBITMAP)hBMP); }catch (CException e) { e.ReportError(); e.Delete(); } SetModifiedFlag(); } // ------------ ---------------------- --------------- ------ LPPICTUREDISP CPicEdCtrl::GetActivePicture() { // TODO: Add your property handler here if (image == NULL) { m_Pic.CreateEmpty(); goto EndProp; } try { m_Pic.CreateFromBitmap (image->MakeBitmap(0)); }catch (CException e) { //Suppress any exceptions e.Delete(); m_Pic.CreateEmpty(); } EndProp: //return the IPicture dispatch interface return m_Pic.GetPictureDispatch(); }