[fpc-pascal] Options -WG -WC -WF -WT

[Mattias Gaertner]

On Sun, 29 Jan 2012 18:03:56 +0100
Sven Barth <pascaldragon at googlemail.com> wrote:

> On 29.01.2012 17:04, Mattias Gaertner wrote:
> > Hi,
> >
> > According to fpc -h (2.7.1):
> >
> > Option -WG creates graphic type application (EMX, OS/2, Windows).
> > Option -WC creates console type application (EMX, OS/2, Windows).
> >
> > fpc -h (2.6.1) knows also:
> > Option -WF creates full screen type application (EMX, OS/2)
> >
> > And the "user" documentation knows one more:
> > http://www.freepascal.org/docs-html/user/usersu15.html#x38-450005.1.4
> >
> > -WT Generate a TOOL application (+) or a console application (-).
> >
> > Are these correct or maybe outdated?
> 
> Here is the complete list of supported apptypes:
> 
> -WA = {$apptype native}: currently only used for NativeNT target if a 
> driver is compiled (not finalized yet, so I wouldn't build on that ;) )
> -WC = {$apptype console}: Console application on EMX, OS/2 and Windows 
> (and according to compiler source also classic Mac OS). On Windows this 
> means that calling that application from inside e.g. cmd.exe will block 
> cmd.exe until the application is finished. Calling the application using 
> the explorer will result in a console window appearing.
> -WG = {$apptype gui}: GUI application on EMX, OS/2 and Windows (and 
> according to compiler source also classic Mac OS).
> On Windows this means that e.g. cmd.exe won't block when such an application is started and on 
> console window will be shown. Also the Std I/O is closed by the application
> -WF = {$apptype fs}: Fullscreen application on EMX and OS/2

For 2.7.1 too?
The option is missing in the ppcx64 -h help.


> -WT = {$apptype tool}: only classic Mac OS
> {$apptype arm7}, {$apptype arm9}: Only used for Nintendo DS, no command 
> line switch available
> > Are they mutually exclusive or can some be paired?
> 
> They are mutually exclusive. If there are multiple on the command line 
> then the last one will win. Also an {$apptype ...} directive in the 
> project file will win.

Thanks.

 
> > What kind of program is created under Windows without any of
> > these options?
> 
> The apptype always (not only Windows) defaults to "Console" except on 
> WinCE where the default is "GUI".
> 
> Note (as I've also read your other mail): I would not suggest to let the 
> IDE automatically set this based on some obscure logic. The option in 
> "Project Settings => Compiler Settings => Linking => Target specific 
> options" is enough.

The "obscure logic" prevents that -WG is passed to the compiler for
invalid targets. Otherwise the compiler stops with an error.

If I understand correct, then a Windows application without -WG is
compiled as a console application and a writeln/readln should work.
Right?


Mattias