FAQ-0517 Can I obtain a return code other than zero from E32Main in a WINC executable?


FAQ-0517 Can I obtain a return code other than zero from E32Main in a WINC executable?

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Classification:	C++	Category:	Base
Created:	09/12/2000	Modified:	12/11/2001
Number:	FAQ-0517
Platform:	ER5

Question:
Can I obtain a return code other than zero from E32Main in a WINC executable?

Answer:
This is possible, although it is not straight forward. The _E32Startup() function ignores the E32Main() return value under WINS and calls E32ExitProcess() which in turn calls the Win32 function ExitProcess(), passing zero as the return code. However, you could achieve the desired effect by doing the following:

#include

GLDEF_C TInt E32Main() // main function called by E32

{ ExitProcess(2); return 2; }
The executable will have to be linked to Win32 Library kernel32.lib. Although the side effect of this will be that the process is exited without calling E32DeInitialize() and other "clean up" functions. To link to kernel32.lib via a makmake-generated makefile, you can add the following to your .mmp file:

START WINS

WIN32_LIBRARY kernel32.libEND