[fpc-pascal] Re: TProcess questions

Marco van de Voort marcov at stack.nl
Tue Oct 3 11:39:50 CEST 2006

> Can you add the following to TProcess instead of using the CommandLine property:
> example:
> property ProcessName: String - the process to be executed
> property Params : TStringList - list of command line params to be
> passed to the process
> Why should quote characters be stripped as it is in the current
> implementation?

When executing, there is a difference between shell notation and the
programming interface.


program name parammeter 1 parameter 2 parameter 3

should be written on the cmdline as

"program name" "parameter 1" "parameter 2"  "parameter 3"

But should be passed to a kernel function as:
filename:='/full/path/to/program name';  // no quotes;
param[0]:='parameter 1';		 // no quotes;
param[1]:='parameter 2';		 // no quotes;
param[2]:='parameter 3';		 // no quotes;

This is the difference between shell api and deeper api. E.g

	shell      		deeper
Unix:  (fp)system() 		 (fp)exec* 
winxx:  shellexecute  		createprocess 

Another usual difference between these two is that the shell versions search
for the binary, while you need to pass full path to the "deeper" category of

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