Dll function caller

[Vortex]

Here is a small tool to call functions exported by Dlls. To pass numerical arguments, use a leading @ symbol. The environment variable %ERRORLEVEL% stores the value returned by the function called with CallDllFunc.exe :

Usage :

Code Select Expand

CallDllFunc.exe dllfile.dll function params

A quick example :

Code Select Expand

Set MB_ICONEXCLAMATION=48

Set MessageBox=MessageBoxA

CallDllFunc.exe msvcrt.dll printf "This is %%s %%u" test @1

CallDllFunc.exe user32.dll %MessageBox% @0 "Message 1" Caption @%MB_ICONEXCLAMATION%

CallDllFunc.exe testdll.dll add @80 @20

CallDllFunc.exe msvcrt.dll printf " 80 + 20 = %%u" @%ERRORLEVEL%

@echo.

[quarantined]

What would this be used for that is better than simply calling the exported function itself?

[Vortex]

Hi swordfish,

CallDllFunc is more functional than the similar Windows component rundll32. My tool can be used for batch file programming.

[quarantined]

Ah, ok. Since there was only a sparse description I was curious as to its usage. Thank you Vortex.

[Greenhorn]

This is a nice one. Small and very useful. 

Thanks, Erol !

[Biterider]

Hi Vortex
Nice Swiss Army knife 

Biterider

[hutch--]

Nice work Erol. 

[TimoVJL]

Useful tool for those, who don't want use vbs.
MessageBox with buttons can used to make choices.