Dear Sirs ,

The examples within the following directories
could be compiled with their Makefile use .

c:\fpc\2.2.2\examples\gtk1\
c:\fpc\2.2.2\examples\gtk2\

(A)

During execution of programs some DLL files
are requested which none of them found in
either FPC directories or in other Windows
directories ( where GIMP and GTK 2.0 are installed ( except libglib-2.0.0.dll in GTK 2.0 ) ) .

They are searched in GOOGLE and they have been found with one exception : gtkgl.dll .

http://www.nodevice.com/dll/libgdk-0_dll/item9998.html 1.3.0.24__libgdk-0.zip

http://www.nodevice.com/dll/libgtk-0_dll/item10004.html 1.3.0.9__libgtk-0.zip

http://www.dlldll.com/libintl-1.dll_download.html
libintl-1.dll

http://www.google.com.tr/search?num=30&hl=en&newwindow=1&q=libglib-2.0.0.dll&btnG=Search libglib-2.0-0.dll

https://zerowing.idsoftware.com/svn/radiant.gamepacks/gtk2-win32/trunk/bin/ libgdkglext-win32-1.0.0.dll

http://svn.icculus.org/FUSE/trunk/libglade-2.0-0.dll?view=log&pathrev=26 libglade-2.0-0.dll

(B)

gtkgl.dll is searched :

GOOGLE gave the following links which none of them contains gtkgl.dll :

http://community.freepascal.org:10000/bboards/message?message_id=116156&forum_id=24092 http://community.freepascal.org:10000/bboards/forum?forum_id=24092&old_count=1 http://freepascal.ru/forum/viewtopic.php?f=1&t=3128 ( in Russian ) http://www.freepascal.ru/forum/viewforum.php?f=1&st=0&sk=t&sd=d&start=80 ( in Russian )

http://www.siteadvisor.com/sites/kimludvigsen.dk/downloads/14268167/ ( mentions gtkgl122.zip )

Inspired from the above link
gtkgl122.zip is searched :

http://www.siteadvisor.com/sites/kimludvigsen.dk/downloads/14268167/ ( tells it is safe )

From

http://edv-ringhofer.de/inhalt/links/os2/cyb/$A020248.HTM

a link to

ftp://cyberia.dnsalias.com/filebase/gfd/gnu/APPS/GTKGL122.ZIP ( Does not exist )

From

http://roedeldns.dyndns.org/filebase/5gfd/gnu_apps/files.htm

a link to

http://roedeldns.dyndns.org/filebase/5gfd/gnu_apps/gtkgl122.zip ( did not worked )

From

http://www.dreamlandbbs.com/files/gfd/gnuapps/

a link to

http://www.dreamlandbbs.com/files/gfd/gnuapps/gtkgl122.zip ( did not worked )

Searching through the following sites could not enable to find gtkgl.dll :

http://www.hakia.com/
http://www.yahoo.com/

(C)

When

c:\fpc\2.2.2\examples\gtk1\list.exe
c:\fpc\2.2.2\examples\gtk1\progressbar.exe

are executed , they are requested "libglib-2.0.0"
instead of "libglib-2.0.0.dll" because in sources

of glib.pp supplied with FPC installation

and in Revision 11822 :

http://svn.freepascal.org/svn/fpc/trunk/packages/gtk1/src/glib/glib.pp

the following is written

{$ifdef win32}
  const
    glibdll='libglib-2.0-0';
  {$define gtkwin}

instead of the following :

{$ifdef win32}
  const
    glibdll='libglib-2.0-0.dll';
  {$define gtkwin}

( This means that DLL loader does not
[ check extension and append a proper part ] . )

(D)

c:\fpc\2.2.2\examples\gtk2\gettingstarted\gettingstarted.exe

is not closing Command Prompt window when GTK form is closed .

(E)

When

c:\fpc\2.2.2\examples\gtk2\gtk_demo\gtk_demo.exe

is started , it is giving the following exception message and then closing :

--------------------------

An unhandled exception occurred at $66E9433E :
EDivByZero : Division by zero
$66E9433E
$66E94B30
$66E915EF
$73B35CEC
$73B3615E
$77F40BB4
$77F36F62
$77F34D74
$6B061F36
$6B0623B0
$6B08B040
$606ACE80
$606B1200
$62743935
$627569B2
$62757D5E
$62757FD6

---------------------------

(F)

In

c:\fpc\2.2.2\examples\gtk2\plugins\main.pas

example , there is an error message saying that
a plugin could not be found .

A readme.txt or readme.html file showing how a plugin will be prepared by direct description and/or showing resources to study may be very useful .

(G)

If the above mentioned DLL files are supplied with FPC installation and/or they are made downloadable from FPC sites it may be very useful to users .
Especially new beginners ( may or will ) encounter difficulties during studying examples .

From the security point of view , arbitrarily downloaded DLL files may be very inconvenient from some suppliers .

Determination of whether a portion of a software is malicious or not is an "Unsolvable Problem" ( from Turing Halting Problem ) and neither of the programs
trying to determine such an issue always can be able to determine such parts . To prevent such cases ,
it is necessary to utilize trustable sites .

Thank you very much ,

Mehmet Erol Sanliturk

This is a known bug on windows.

Use the folowing call in your application initialization section:

Set8087CW($133F);

Best regards,
Paul Ishenin.