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BC4.5 App Expert error

Posted on 1997-01-16
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Last Modified: 2008-03-10
Hi, I have an interesting problem with Borland C v.4.5 running in Windows 95
When you create an AppExpert Windows application, using all the default values, apart from choosing "Dialogue client" fr the window model, it works fine, but if you then go into resource workshop and just add (say) a 3D line, compile it and run it, it works while Borland C is in memory, but if you shut down BC and just run the executable, it gives you a "Create fail for window error" - any ideas what is happening and does anyone else have the same problem?

                        Thanks,
                              Nick





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mattyg102096 earned 100 total points
ID: 1161913
The 3D line you are trying to use is not a standard user interface element of Windows.  It is provided by the BWCC.DLL (Borland Windows Custom Controls).  Your application needs to load in this library in order to use these extra features.

When you run under the Borland C++ IDE, everything works fine because the IDE itself uses BWCC.DLL, so it is memory.  But you need to load this DLL yourself so that you know it is loaded for your program.

When you generate your AppExpert projects, you need to make sure that you enable the BWCC library... there is an AppExpert which I believe is under Application | Advanced Options | Control Style.

Since an AppExpert project uses OWL, it really easy to add BWCC support once you've generated the project because the class TApplication has a member function called EnableBWCC that does the work for you.  Just add

     EnableBWCC();

to the constructor of your TApplication-derived class.  The function has default values for its 2 possible arguments which do what you want, so you don't need to pass any parameters to the function.
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