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| Graphics Programming Discussion graphics programming using C++. Valid topics include OpenGL, DirectX, GDI/GDI+, Aero, and more. |
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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 ... .... PicEd.Open("C:\Temp.bmp") set PicEd.ActivePicture = Picture1.Picture PicEd.RotateBy(90) set Picture1.Picture = PicEd.ActivePicture() .... //---------------------------------------------------------------------- //NOTE: m_Pic is of type CPictureHolder // image is of type CxImage [ a class library found on CodeProject] 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(); } |
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