When trying to run a 16-bit Windows application that is compiled with
Borland C++ 5.02 in Windows 95, it does not have any 3D Controls when using
EnableCtl3d(true) within the InitMainWindow function of the application.
This text file explains how to override this behavior so that your
application has 3D Controls in both Windows 3.X and Windows 95.

In C:\BC5\INCLUDE\OWL\applicat.h we need to change a few variables from
being private to being protected so that our application can modify their
values.  Just search the file for this grouping of variables.  It's about
halfway down the file.  Be sure to keep everything in the same order.  It
is not necessary to rebuild OWL with this change.  BE SURE TO MAKE A BACKUP
COPY!

------------------------------ applicat.h ---------------------------
...
// This section of code has been added.
  protected:
    bool          BWCCOn;
    TBwccDll*     BWCCModule;

    bool          Ctl3dOn;
    TCtl3dDll*    Ctl3dModule;

  private:
// The following section was commented out, to make the variables protected
// instead.  The new code is above.
/*  bool          BWCCOn;
    TBwccDll*     BWCCModule;

    bool          Ctl3dOn;
    TCtl3dDll*    Ctl3dModule; */

    TCurrentEvent CurrentEvent;
...
------------------------------ applicat.h ---------------------------

Now, we'll need to modify the InitMainWindow () function of your application
as follows (just pay attention to the CTL3D override parts):

------------------------------- myapp.cpp --------------------------
...
void MyApp::InitMainWindow ()
{
   if (nCmdShow != SW_HIDE)
      nCmdShow = (nCmdShow != SW_SHOWMINNOACTIVE) ? SW_SHOWNORMAL : nCmdShow;


   SDIDecFrame *frame = new SDIDecFrame(0, GetName(), 0, true);
   frame->SetFlag(wfShrinkToClient);

   //
   // Assign ICON w/ this application.
   //
   frame->SetIcon(this, IDI_SDIAPPLICATION);

   //
   // Menu associated with window and accelerator table associated with table.
   //
   frame->AssignMenu(SDI_MENU);

   //
   // Associate with the accelerator table.
   //
   frame->Attr.AccelTable = SDI_MENU;

   //EnableCtl3d(true);
   // The following code is to override TApplication::EnableCtl3d so that
   // 3d controls are available in Windows 95

   // Beginning of CTL3D override for BC5
   bool enableCtl3d = false;
	if( !Ctl3dModule  )
      {

      Ctl3dModule = new TCtl3dDll();

      if( ( Ctl3dModule = new TCtl3dDll() )!= NULL )
         {
         Ctl3dModule->Register(*this);
         enableCtl3d = true;
         }
      }
   else//been here, done that
      enableCtl3d = true;// to Ctl3dOn flag

   Ctl3dOn = enableCtl3d;
   // End of Ctl3d override for BC5
...
rest of InitMainWindow () function
------------------------------- myapp.cpp --------------------------

That should do it!  This method should work with BC++ 5.0 and above.

Cover myself statement:
You use this information at your own risk.  I cannot be held liable for
loss or damages resulting from the use or misuse of this code, including but
not limited to the following: loss of data, your program, your harddrive, your
car keys, your mind, etc..  :)

Mark Headrick
headrick@ionet.net
webmaster@pharaohgames.com