APPENDIX B
Common PEN*KEY 6000 Series Information
PEN*KEY
R
6200/6300 Hand-Held Computer Programmer’s Reference Guide B-35
Additional Windows Files
Applications
DLLs
INIs
APIs
Additional
Windows
Files
(optional)
Handwriting
Recognition
Pen Windows
Minimal Windows System Files
Windows Drivers
DOS
DOS Drivers
BIOS
Hardware
While they are not shown explicitly in the block diagram, there are other files
that must be present for a Windows application to run. Some applications reĆ
quire only the main executable (or EXE file), but most require the EXE, one or
more DLLs (either the type supplied with Windows or DLLs specific to the apĆ
plication), as well as data files. If one or more required files are not present,
then Windows fails to load the application, and offers the following helpful" erĆ
ror message:
Cannot find file or one of its components.
If you see this message when you doubleĆclick on an application's filename in the
Windows Explorer, it usually means that one or more DLLs are either not presĆ
ent or not in a location on the disk drive that is accessible via the path. UnfortuĆ
nately, Windows does not provide much assistance in helping you to determine
exactly which files are missing (the above message is an example). Determining
which files are missing is largely a matter of trial and error, unless you are able
to determine exactly which files the application is expecting to have available on
the disk. For assistance in determining what these files are Ċ in reference to an
application that is documented in this programming guide Ċ see the appropriate
paragraph (for that application) in this appendix of the document.
Shell Applications
The
shell
is the first program that Windows starts, and it is the program that
causes Windows to exit when it shuts down. By default, Windows uses the ProĆ
gram Manager as the shell. Ordinarily, almost any application can be desigĆ
nated as the shell, and one of the basic requirements of a shell program is the
ability to launch other applications. Rather than require special programming
on the part of the customer to implement shellĆlike capabilities, the PEN*KEY
6000 Series Computer uses an invisible" shell program that, in turn, invokes
the main application program. To see how the File Manager is launched from
the shell program, see the
Windows Shell
paragraph in Section 3.
Fonts: What They Are and How They Impact
The retail Windows program comes with several fonts. There is also a considerĆ
able aftermarket for addĆon fonts. Fonts are usually in one of two categories:
"
BitĆmapped fonts have a filename extension of .FON. At least one of these
fonts must be present for Windows to use in building dialog boxes and meĆ
nus. The INTERMEC minimal Windows configuration includes three bitĆ
mapped fonts: VGAFIX, VGAOEM, and VGASYS.
B. Common PEN*KEY
6000 Series Info.
