BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Painting in TScrollingWinControl          BorlandTalk.com Forum Index -> C++ Builder (VCL Components Development) View previous topic :: View next topic   Author Message tinyabs Guest Posted: Wed Apr 06, 2005 5:28 am    Post subject: Painting in TScrollingWinControl How to I draw custom graphics in TScrollingWinControl? I'm doing a custom control that requires scrollbars. Back to top Hans Galema Guest Posted: Wed Apr 06, 2005 6:51 am    Post subject: Re: Painting in TScrollingWinControl tinyabs wrote: Quote: How to I draw custom graphics in TScrollingWinControl? I'm doing a custom control that requires scrollbars. You could supply it with a TControlCanvas. Or just a TPaintBox maybe. Hans, Back to top tinyabs Guest Posted: Wed Apr 06, 2005 9:29 pm    Post subject: Re: Painting in TScrollingWinControl Do you mean setting TPaintBox as a child of TScrollingWinControl? Currently, I paint after the control processed WM_PAINT. I think I just use TWinControl with WS_EX_RIGHTSCROLLBAR to do it. "Hans Galema" <notused (AT) notused (DOT) nl> wrote Quote: tinyabs wrote: How to I draw custom graphics in TScrollingWinControl? I'm doing a custom control that requires scrollbars. You could supply it with a TControlCanvas. Or just a TPaintBox maybe. Hans, Back to top Hans Galema Guest Posted: Thu Apr 07, 2005 8:05 am    Post subject: Re: Painting in TScrollingWinControl tinyabs wrote: Quote: Do you mean setting TPaintBox as a child of TScrollingWinControl? Currently, I paint after the control processed WM_PAINT. But where do you paint on ? Which canvas ? You asked "How to draw..". Maybe I did not understand what you needed. Quote: I think I just use TWinControl with WS_EX_RIGHTSCROLLBAR to do it. To draw a graphic on/or what ?? Hans. Back to top tinyabs Guest Posted: Thu Apr 07, 2005 6:42 pm    Post subject: Re: Painting in TScrollingWinControl It's a specialized control. Try imagine MS Paint using this control as its drawing area (with scrollbars). I draw other things on my control. Quote: But where do you paint on ? Which canvas ? You asked "How to draw..". Maybe I did not understand what you needed. I draw directly to the HDC created during WM_PAINT. My original intention was to find out which control supports custom painting and scrollbars. Cos I think TScrollingWinControl don't support custom painting, it's only for placing child controls. 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