************************************** WELCOME TO TURBO C++ FOR WINDOWS 4.5 ************************************** This README file contains important information about TURBO C++ FOR WINDOWS 4.5 (TCW).
For the latest information about TCW and its accompanying programs, read this entire — Installing Turbo C++ on your hard disk — Importing Project Files from Borland C++ 4.x — ObjectComponents Framework (OCF), OLE 2.0, and ObjectWindows 2.5 — Registering debugging versions of OLE servers under TCW — New file in WINDOWSSYSTEM directory — New tools for registering OLE servers and automation controllers — Debugging OLE applications under Windows NT — OLE error codes — OLE2 applications — OLE implementation under Windows NT — OLE2 compiler options — VBX Controls Included with TCW — OpenHelp with TASM — Limitation in DOCVIEW.IDE — DDVT functions and RTTI — Inline assembly and interrupts — Creating 16-bit import libraries from .DEF files — IDE/Integrated Debugging — InProc servers and the IDE — Running from a Windows 3.1 DOS Prompt — Converting TCW 3.1 to TCW 4.5 code — C/C++ Language Features ********************************************* ********************************************* If you have any problems, please read this file, the HELPME.WRI and other files in your DOC subdirectory, and ********************************************* ********************************************* Do not install TCW 4.5 over previously installed TCW directories. The files in this distribution will not work with tools and libraries If you used Turbo Assembler 4.0 with a previous installation of TCW, you must reinstall it after installing TCW 4.5. Also, be especially careful when using object files and libraries from earlier TCW versions with binaries created with this release. There are several potential problems when linking with old objects or libraries. Exceptions won’t work correctly (destructors won’t get called) when a pre-BC4 stack frame is unwound due to an exception. Do not use long file names when installing under Windows NT. ———————————————– Installing TCW 4.5 on your hard disk ———————————————– Diagnostic and debug version of OWL are not installed to the hard disk, but they can be copied from the CD.
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Users of ObjectWindows 1.0, should read the COMPAT.TXT file for **** Note to Windows NT, OS/2, and Windows 95 users **** If you intend to use TCW under any of these platforms you must follow some additional installation steps, which are listed in the INSTALL.TXT file. If you fail to read and follow these configuration guidelines, you may encounter several significant For more information about installing and configuring TCW, see the file INSTALL.TXT which can be found in the following locations: TCW 4.5 includes the following new features: – A complete encapsulation of OLE2 via new ObjectWindows classes and the ObjectComponents Framework, a new set of C++ classes. This allows you to develop applications that support the following * Linking and embedding containers * Linking and embedding servers * Automation servers (automatable servers) * OLE clipboard operations * OLE drag and drop operations * OLE user interface, including menu merging, pop-up menu for activated object, verbs on container’s Edit menu * Localized strings for international support – New utilities to make OLE programming easier: * WinRun allows you to launch Window application from the MS-DOS prompt in Windows 3.1. (See UTILS.TXT for * AutoGen, MacroGen, GuidGen produce helpful class declarations, macro,s and OLE identifiers automatically * DllRun and Register simplify running and testing DLL – IDE enhancements to TargetExpert, AppExpert, and ClassExpert to support the new OLE2 capabilities. – Support for ANSI C++ exception handling, structured exception handling under C, and mixed C/C++ exception handling. – Support for ANSI C++ operator new[] and operator delete[]. – Runtime Library support for the ANSI C++ string class. – Support for ANSI C++ runtime type identification (RTTI).
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– Support for ANSI C++ new style casts dynamic_cast, static_cast, const_cast, – Support for three character types as provided in ANSI C++. – Integrated GUI debugging for 16-bit Windows applications. – A new project manager that supports multiple targets, drag-and-drop, and Style Sheets for associating options. – AppExpert, which simplifies the process of creating ObjectWindows applications through code generation. – ClassExpert, which simplifies adding and managing classes in – Transfers, Settings Notebook, SpeedMenus, and a configurable SpeedBar. – Expanded editor support, including column blocking and window splitting. TEMC now called KEYMAPR. – Auto mapping of accelerators and help hints to menu items – Dialog editor property inspector – Integrated with ClassExpert and IDE project manager – Complete coverage of Windows API, including GDI – Single source for Win 3.1, Win 32s, and NT (building 32-bit applications requires Borland C++) – Built in exception handling using standard C++ exceptions for robust error – Built-in type safety using standard C++ templates – Toolbars, status lines, and print preview – Flexible Document/View architecture – Supports VBX 1.0 controls in a dialog or window – Printing and print previewing support – OpenHelp, a utility that enhances the functionality of Windows Help by allowing you to quickly search for topics across Help files, as well as the ability to add your own Help files (or remove them) from – Documentation in the Acrobat 2.0 document viewing browser. Acrobat lets you search through the entire documentation set to find selected topics. You can view the contents page by page and print sections of particular interest.
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– Borland’s visual tools, such as Resource Workshop, provide support of VBX 1.0 controls via a DLL called BIVBX11.DLL. You can freely distrubute this DLL with programs you create that use VBX BIVBX11.DLL has been tested with a large number of VBX controls written to the Microsoft Visual Basic 1.0 CDK specification. If you have a problem with a specific control, make sure that it does not require VB 2.0 or VB 3.0 CDK functionality. VBX 2.0 and 3.0 controls will usually display a message saying that they require VB 2.0 or 3.0 support. In some cases, though, the control may appear to work but exhibit instability. Please contact the control vendor and explain the problem. They may have an updated control or may be able to This section contains important information not found elsewhere in the product documentation. Please read through this material The four books available online duplicate material already in the online Help. We recommend using the Acrobat Reader to read long sequences of material in order and the online Help when searching for specific information by The Acrobat Reader is capable of high-quality printed output. You might prefer to print sections of the manuals ——————————————– Importing Project Files from Borland C++ 4.x ——————————————– When TCW loads an .IDE file created with Borland C++, it shows a dialog box warning that the project might contain target types and option settings that TCW does not support. If you click Yes to import a BC project, TCW ignores any optimization settings the project might contain. The TCW project manager displays DOS targets and Win32 targets, but attempting to build them causes errors. For more details about what project features might cause problems for TCW, click the Help button in the You can disable the dialog box, if you prefer, with the following setting in your TCW.INI file. With this setting, TCW automatically converts any .IDE Borland C++ reads TCW .IDE files without difficulty. TCW 4.5 does not support development of OWL 1 applications. The differences between OWL 1 and the current OWL 2.5 are large enough to render them incompatible. You will need to convert your OWL 1 programs to use OWL 2.5 before you can build them. For help converting, see Appendix A of the ObjectWindows Programmer’s Guide in the online To get you started quickly with using Turbo C++ for Windows, take a look at the online Quick Tour. The Quick Tour provides an overview of the product, with animated demonstrations of its many Although you can view the Quick Tour at any screen resolution, a resolution of at least 800 x 600 is recommended. If you choose to install the Quick Tour Help file, then you also need to run Microsoft’s Setup program for Video for Windows. Normally the TCW install launches Setup for you automatically. If you have chosen the WinLAN configuration, however, then a system administrator will have to run the Video for Windows Setup program for you because Setup writes to the system registry. Without Video for Windows, the Quick Tour Help file cannot The animation (AVI) files are stored on the CD and are not automatically installed on your hard drive. For this reason, you need to leave the CD in the drive while viewing the Quick Tour if you want to view the demonstrations. If the CD is not in the drive, an error message is displayed when you try to run a Although compression of the animation files is optimized to run from the CD-ROM, you can also run them from your hard drive. To do so, you need to make the following changes: 1. Create a directory called AVI under the TCWTOUR directory located in your Turbo C++ for Windows directory (TCWIN45, by 2. Copy all the files from the TCWIN45TCWTOURAVI directory on the CD-ROM to the TCWTOURAVI directory on your hard disk. 3. In WINHELP.INI, change the value of CdTcPath so it points to the drive and directory in which you installed TCW. If you used the default directory (TCWIN45), you will only need to change the drive letter to that of the hard drive where TCW is The Quick Tour page that describes features for internationalizing applications allows you to launch the INTLDEMO example program directly from the Help file. If you chose not to install the Borland custom control library (BWCC.DLL) then INTLDEMO.EXE cannot run. You can start the Quick Tour from the following places: – From the Quick Tour icon in the Turbo C++ 4.5 desktop group. – From the Quick Tour button in the About Turbo C++ dialog box which displays the first time you start the IDE. – From the Quick Tour command on the Help menu. You can uninstall the Quick Tour after viewing it by deleting the TCWTOUR directory located under the directory where you installed Turbo C++ for Windows (TCWIN45, by default).
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—————————————————————- ObjectComponents Framework (OCF), OLE 2.0, and ObjectWindows 2.5 —————————————————————- Registering debugging versions of OLE servers under TCW ——————————————————- The debugger, debugid, and debugdesc registration keys require the use of a debugger that can be invoked from the command line. Turbo C++ for Windows 4.5 does not provide a command-line debugger. You can purchase Turbo Debugger for Windows as part of the ————————————- TCW 4.5 installs a new file called BOCOLE.DLL in your WINDOWSSYSTEM directory. This library must be present in order for any ObjectComponents program to execute. Debugging OLE applications under Windows NT ——————————————- When debugging OLE applications under Windows NT 3.5, you may experience a lock up if a program is forced to terminate. This will happen when any OLE application is running under the IDE and you explicitly request Debug | Program Terminate, or implicitly request program termination by closing a project. This problem will not occur under Windows 3.1 or Windows 95, and will not happen with non-OLE applications. Borland recommends that all developers running under NT accept any updates to the NT OLE DLLs if and when they are made available by Microsoft. When WinSight spies on an ObjectWindows OLE container, it sometimes causes corruption of the container’s menus. This behavior is expected. If it occurs, quit the application and start again. The file DOCOLE_ERRS.TXT contains a list of the error codes OLE defines. The list is sorted in numerical order. Refer to it for help in interpreting Many commercial products are now offering their first generation of OLE2 enabled applications. Some of these applications are more complete OLE implementations than others. Borland has observed several major commercial applications that exhibit errant behavior when asked to perform certain OLE operations. This is especially true when asked to embed DLL servers, which many OLE applications appear to be unprepared to handle. If you experience problems when using OLE applications you create with TCW in conjunction with third party products, do not jump to the conclusion that the problem is yours. Until OLE applications in the market place mature, it is not yet a safe assumption that just because a product comes from a leading company that it is robust. Changes introduced between OLE 2.0 and OLE 2.02 are responsible for exposing some of these problems. When reporting bugs in OLE applications to third parties, be sure to specify that they should be developing and testing under the latest version of OLE. The 16 bit OLE implementation originally shipped in Windows NT 3.5 may exhibit problems with DLL servers and may behave differently than the version of OLE that MS recommends for Windows 3.1. Borland recommends that all NT developers update to later versions of the NT OLE DLLs if and when they are made available by Microsoft. When linking 16 bit OLE2 modules, the OLE2 import library (ole2w16.lib) must come before the RTL import library (import.lib.) The BIVBX102.DLL has been renamed to BIVBX11.DLL. BIVBX11.DLL has been tested with a large number of VBX controls written to the Microsoft Visual Basic 1.0 CDK specification. If you have a problem with a specific control, make sure that it does not require VB 2.0 or VB 3.0 CDK functionality. VBX 2.0 and 3.0 controls will usually display a message saying that they require VB 2.0 or 3.0 support. In some cases, though, the control might appear to work but exhibit instability. Please contact the control vendor and explain the problem. They might have an updated control or might be able to contact Borland to find a solution. The following functions in BIVBX.H are limited to 16-bit only. To allow for portability to 32-bits, these functions should be replaced Old (16-bit only) New (16-bit and 32-bit) —————– ———————– VBXGetBasicStringPtr VBXGetBasicStringBuf VBXGetCStringPtr VBXGetCStringBuf VBXGetEventName VBXGetEventNameBuf VBXGetPropName VBXGetPropNameBuf VBXLockCString VBXLockCStringBuf Turbo C++ 4.5 does not support 32-bit development, but using the more portable names is still a good idea in case you later upgrade to Borland C++ and want to create a 32-bit application. For more information, see the BIVBX.WRI file. TargetExpert now manages libraries for VBX controls. If you have an IDE project which uses VBX controls, make the following change to your project to take advantage of TargetExpert support: – In the project window, delete the bivbx.lib node. – In the project window, right click on your EXE node. – From the resulting SpeedMenu, select TargetExpert. – In TargetExpert, enable the VBX checkbox and press OK. If you choose to install the example programs, TCW places a set of VBX controls in your WINDOWS/SYSTEM directory. The VBX controls are made by MicroHelp. Two of the examples, Turbo MahJongg and TurboCribbage, make use of one of the For more information about what controls are included and how to use them, find the Help file called VBT300.HLP To find out more about using VBX controls generally with Turbo C++, consult the online Help and the ObjectWindows Programmer’s Guide in the Acrobat Reader.
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See the online Help provided with OpenHelp (OPENHELP.HLP) for details on how to use and configure this new search engine. If you install TASM with TCW4.5, you need to run the OpenHelp configuration The OWL example called DOCVIEW has a project file called DOCVIEW.IDE. The project file has a number of different target nodes. The best way to build all the nodes successfully is to use the Project|Build All command. There is a potential danger because many of the products produce intermediate .OBJ files with the same name, but the .OBJs are compiled differently. Using a Make command, one node might end up accidentally using and .OBJ that was built for When compiling code that contains DDVT functions, do not use run-time type information or you will receive an error message. In order to compile without using run-time type information, compile all code that uses DDVTs (for instance OWL 1.0x libraries and applications)with the -RT- switch (Options|Project|C++ Options|Exception handlingRTTI in the IDE).
If your inline assembly code includes an interrupt call, the compiler does not preserve any registers altered by the call. You must write code to save and restore registers when using interrupt calls within inline assembly ——————————————— New Compiler Switches and Linker Optimizations ———————————————- See your documentation for a description of the new compiler switches The NOEHxx libraries eliminates the overhead of exception-handling code in the run-time library for users who don’t need it and who do rely on any A NOEHxx library must be linked in before the standard runtime library. For the IDE, add the approriate library to the project using AddNode. To ensure the NOEHxx library is processed before the standard libraries, turn on “Show Runtime Nodes” in the Options|Environment|ProjectView dialog. From the project window you can move the library up and down using the ALt-*arrow* keys. Be sure the NOEHxx library appears before other standard The NOEHxx libraries resolve calls to exception-related compiler helper functions to dummy functions that return appropriate return values. They also restore the pre-exception behavior of operator new to return NULL on out of memory conditions. Non-exception enabled versions of setjmp() and Note: some new features (first introduced in Borland C++ 4.0) require exception handling. These include the string class, BIDS container classes, the standard OWL libraries, and RTTI. Using the Microsoft DBWIN utility interferes with the Event log’s ability to display those same messages. To see those messages in the Event log, either quit DBWIN or select Options|No Output in DBWIN. DDE applications must be debugged in hard mode. Hard-mode debugging does not work reliably under Windows NT version 3.1, and might crash the WOW session. The IDE disallows users from selecting hard mode on all stops, but setting a breakpoint on certain Windows messages might cause the debugger to go into hard mode. 16-bit tools running on NT cannot use NTFS filenames. ———————————————————– Converting TCW 3.1 Windows Code to TCW 4.5 ———————————————————— To get your TCW++ 3.1 code to compile and run under TCW 4.5, modify your code to reflect three character types where compiler errors occur when using the TCW 4.5 RTL includes. Alternatively, you can set a compiler option and use the RTL includes from TCW 3.1. The Options | Project | C++ Options | Compatibility | ‘Do not read ‘char’ as distinct type’ This option provides for only two character types. Also, use operator new[]() and delete[]() syntax for class arrays. Floating-point formats are a collection of formatting information used to manipulate floating point numbers in certain runtime library functions such This section discusses why you might get the error FLOATING POINT FORMATS NOT LINKED : ABNORMAL PROGRAM TERMINATION and tells There are no current plans to fix this because it is not a bug. The intent is to avoid linking the floating-point formats (about 1K of overhead) when they are not required. The tradeoff is that the programmer must explicitly request that the floating-point formats be linked in for some programs that manipulate floats in a limited and Because you can get this error in a number of different ways, check the following list of potential causes to find out how to resolve the error. The causes are listed in order of most common to least common. 1. CAUSE: Floating point set to *None*. You have your floating point option set to None when it should be set to FIX: Set Floating Point to Fast or Normal. 2. CAUSE: Either the compiler is over-optimizing, or the floating-point formats really do need to be linked in because your program manipulates floats in a limited and specific fashion. Under certain obscure conditions, the compiler will ignore floating point usage in scanf() (e.g., trying to read into a float variable that is part of an array contained FIX: Add the following to one source module: #pragma extref _floatconvert 3. CAUSE: Forgetting to put the address operator & on the scanf variable expression. For example, FIX: Change the code so that the & operator is used where it is needed. For example, the above code should be If you are bringing programs from Borland C++ 4.x into TCW 4.5: the value of the IDS_LISTNUM define in OWL has changed since BC++ 4.02. If you have created an application in BC++ 4.0 or 4.02 using AppExpert, you will receive redefinition warnings when rebuilding in TCW 4.5. To correct this problem, update the .RH file for your project to match the new value for this define. Specifically, the Many changes were made to the compiler in compliance with the latest changes proposed by the ANSI C++ committee. These include three distinct char types, enhancements to templates, support for virtual functions differing in return types, and other improvements listed here. See the Library Reference and the Programmer’s Guide for complete details on these changes and how they affect your wchar_t is a fundamental data type in C++ programs. In C programs it continues to be a typedef defined in stddef.h. See online Help. Enum operator overloading is also supported. The runtime library now supports the ANSI C++ string class. If you already have a string class, it must be renamed for Turbo C++ 4.5. In addition, operator new and operator new[] now throw an exception (xalloc), as specified by the ANSI C++ committee. To get the old behavior, you can issue set_new_handler(0).
(set_new_handler(0), however, does not work with ObjectWindows or string classes.) See Chapter 3 of the Programmer’s Guide. Arrays are now being allocated through operator new[]() and deleted by operator delete[]().
An example is provided in Chapter 3 of the Turbo C++ 4.5 implements ANSI C++ runtime type identification (RTTI).
See the Library Reference, “C++ runtime support”, for a description of class Type_info. RTTI and operator typeid() are fully described in Chapter 3 of the Programmer’s Guide. Turbo C++ provides a full implementation of exception handling under C++ and C. C exceptions can be handled in C or C++ code; C++ exceptions can be handled only in C++ code. The C++ exceptions are described in the Library Reference, “C++ run-time support.” See Chapter 4 of the Programmer’s Guide for a full description of how to use exception Turbo C++ 4.5 also implements the accepted ANSI C++ new style casts. See the Chapter 3 of the Programmer’s Guide for information and
