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ParamCount

unit
System
category
command line utilities

declaration
function ParamCount: integer

description
Returns the number command-line parameters.
Delphi uses space character to break command line parameters; use double quotes around text that contains space characters (long file names).

example
var i: integer;
s
for i:=1 to ParamCount do
 ShowMessage(i +') parameter: ' + ParamStr(i));

in real code
Run with Parameters
How to pass command-line parameters to your Delphi application and how to handle them.

see also
ParamStr, CmdLine, FindCmdLineSwitch


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