Question and Answer Database
FAQ1454C.txt OWL pre compiled headers
Category :OWL
Platform :All
Product :BC++ 5.x
Question:
Did the rules for precompiled headers change between BC++
4.5 and BC++ 5.0? I just upgraded to 5.01 and tried to
recompile an old project. Its C++ files simply included
, but to get them to recompile with BC++ 5.01,
I had to add header includes for the specific classes used.
For example, to use a TComboBox, I had to include
(did this really need to change?) and then .
Otherwise, the compiler spewed errors related to not
understanding the types used.
Answer:
Check your defines in the options for compiling. You will see a
OWL_PCH defined. If you want all OWL header, change this OWL_PCH
to OWL_ALL_PCH. Of course, this precompiled header will get very
large so you better have lots of RAM. Furthermore, unless
_OWL_ALL_PCH is defined, you only get PCH support for the "core
OWL" classes: TWindow, TDialog,TApplication, TModule, TDC and a
few others.
7/2/98 10:32:32 AM