Until this morning I was using 0.9.28.3, so I decided that it was time to upgrade.
After installing lazarus 0.9.30 from sourceforge and opening your demo I get a missing required package LCL >= 1.0.1. By default I found the installed package LCL 1.0 and not installed LCL 0.9.30, which I cannot install because it makes conflict with the other one. Happened to anyone ? R# 2011/5/30 Ludo Brands <[email protected]>: > Dear all, > > Attached a demo program that implements a simple solution for embedding > ActiveX controls in LCL forms. > It uses atl.dll, part of Active Template Library, the MS C++ COM support > classes. The dll is part of most (if not all) windows installations and is > really lightweight (58k on win32, 88k on win64). > If using MS C++ class helpers is causing "religuous" objections, please > don't read on ;) > > The method used is quite simple: > - Drop a Tpanel on a form. Could be any visual control but Tpanel is the > simplest. > - Start ActiveX control using CreateOleObject (late binding) or > CoCreateInstance (early binding) > - call AtlAxAttachControl with Tpanel.Handle and the IUnknown interface of > the ActiveX object. > That's it. The ActiveX object is embedded in the Tpanel. Resizing the Tpanel > at runtime correctly resizes the ActiveX control and setting Tpanel.Visible > to false will hide the ActiveX control. > > I also added the code to implement an event sink for the ActiveX object. The > demo uses the web browser control. The status bar below the control is > updated by the event sink. > > Important: since the fpc COM implementation has changed quit a lot recently, > the demo needs a recent fpc to compile and run. So if you get the compiler > complaining about constref in QueryInterface or if you run into compile or > run-time errors around Utf8Encode(OleVariant(Params.rgvarg[0])); , update > the compiler. > > Ludo > > > > -- > _______________________________________________ > Lazarus mailing list > [email protected] > http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus > > -- _______________________________________________ Lazarus mailing list [email protected] http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
