Vicente: Thanks for the info.
Regards, Vicente Guerra wrote: > On Fri, 6 Mar 2009, Luis Krause Mantilla wrote: >> Are there any docs on how #pragma TEXTHIDDEN(0|1) works? >> What's the overhead, pros/cons, etc and usefulness of this feature? > > It's a very simple XOR mask for text strings. You can write some > text which will not be visible to "mortal users" with standard tools > like EDIT or NOTEPAD. Any hacker will be able to read anyway (it will, > in any way you try to hide), but at least it will not be to the most > common user. > > // It's not the safest password... > #pragma TEXTHIDDEN( 1 ) > IF cUser == "ME" .AND. cPassword == "SECRET" > Login() > ENDIF > #pragma TEXTHIDDEN( 0 ) > > #pragma TEXTHIDDEN( 1 ) > @ y,x SAY "I'm the author. Please don't change my name with yours." > #pragma TEXTHIDDEN( 0 ) > > DO WHILE .T. > ACCEPT "Which one is the best xBase compiler? " TO cCompiler > #pragma TEXTHIDDEN( 1 ) > IF UPPER( cCompiler ) == "XHARBOUR" > ? "Yes! xHarbour is the best!" > #pragma TEXTHIDDEN( 0 ) > EXIT > ELSE > ? "Incorrect answer! Try again." > ENDIF > ENDDO > > It's slower than a "regular" strings, because it requires to allocate > a new memory block and XOR all characters on the string, but it affects > only static-string operations. > > Atte. > Vic > -- Luis Krause Mantilla lkrausem at shaw dot ca luis_krause at hotmail dot com "May the Source be with GNU" ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ xHarbour-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/xharbour-developers
