when a class uses the methods of a library file(dll). Since the binary file(dll) does not contain the type of access specifier(public,private)a method is assocaited with,How can the class identify whether the method is public or private ???

I recommend you use Keith Rule's Flicker Free Drawing In MFC[^] Good luck and keep the good coding!

maybe it is some helpful to you CImage m_Image; m_Image.Load(Filename); In funtion Onpaint(WM_PAINT) OnPaint() { CPaint DC(this) m_Image.BitBlt(dc.m_hDC,CRect(0,0,800,600),CPoint(0,0)); // m_Image.StretchBlt(GetDC()->m_hDC,CRect(0,0,200,200)/*Dest*/,CRect(0,0,800,600)); }

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If you need to compare the pointer values, just compare them using normal operators.  If you need to compare the things that the pointers point to you need more information about them: int iValueA = 1; int iValueB = 1; void *vp1 = &iValueA; void *vp2 = &iValueB; void *vp3 = &iValueA; if( vp1 == vp3 ) {     OutputDebugString( _T( "vp1 == vp3\n" ) ); } if( vp1 == vp2 ) {     OutputDebugString( _T( "vp1 == vp2\n" ) ); } if( *(int*)vp1 == *(int*)vp2 ) {     OutputDebugString( _T( "*vp1 == *vp2\n" ) ); } Peace! [edit] Alright - who is the buttmonkey that voted this a 2 with no reason given? ;P [/edit] -=- James If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong! Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road! DeleteFXPFiles & CheckFavorites (Please rate this post!)

Nemanja Trifunovic wrote: (what the heck is I for anyway?). Common Language Infrastructure... :doh: :cool:

i tried ur code and it gave me the following error: /*********************** test.cpp:13: error: invalid use of non-static member function ‘void cls::f()’ test.cpp:13: error: converting from ‘void (cls::)()’ to ‘void ****************************!!!/ any ideas ??