How to get the installer path in Inno Setup?

D开发者_如何学运维o you know the right method to get the installer path in Inno Setup?

I want to catch that value inside the [Code] section.

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{srcexe} will give you the path and filename of the setup.
{src} will give you just the installer path.

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You should use the {srcexe} constant. In Pascal scripting, you can obtain the values of constants using the ExpandConstant function, as in

path := ExpandConstant('{srcexe}');