Schultz
23rd April 2002 13:24 UTC

SectionSetFlags bits
  I read the documentation and tried playing around with it.. but i am failing to grasps how to actually modify the bits to Select/Deselect make Read-only / Non-read only. Could anyone explain to me how these work exactly? thanks..

justin
23rd April 2002 19:35 UTC

This will set the second section as currently enabled:

  SectionGetFlags 1 $R0

  IntOp $R0 $R0| 0x80000000

  SectionSetFlags 1 $R0 

>

  SectionSetFlags 1 0x40000000 

>

  SectionSetFlags 1 0xC0000000 

>

  SectionSetFlags 1 0x80000003 

>

Schultz
24th April 2002 15:25 UTC

Ok now i am not sure about how to test and see if a section is enabled or not.. would you use the AND operade like
SectionGetFlags 1 $R0
IntOp $R1 $R0 & 0x80000000
and then do a test like this to see if its valid or not..? or am i way off bases and totaly failing to understand how it works..

justin
24th April 2002 20:42 UTC

Yep you got it ...
IntOp $R1 $R0 & 0x80000000
IntCmp $R1 0 SectionNotEnabled
DetailPrint "Section is enabled"
SectionNotEnabled:

-Justin

Schultz
25th April 2002 11:24 UTC

Justin,
I think i am getting it.. I am using this as a test script.. would this be the best way to work with it.? I am using 0x00000000 to make a Selection Disabled correct method right? here is the script

Name "test"

>OutFile "test.exe"

>Caption "NSIS Testing Script"

>ShowInstDetails show

ComponentText "Testing"


>Section "crap"

  GetDLLVersion $SYSDIRDVobSub.ax $3 $4

   GetDLLVersion"C:\Windows\System\DVobSub.ax" $1 $2

   DetailPrint "$3 $4, $1 $2"

  IntOp $0 $3 & $4

   IntOp$5 $3 | $4

   DetailPrint "$0, $5"

  IntOp $0 $1 & $2

   IntOp$5 $1 | $2

   DetailPrint "$0, $5"

   SectionEnd


Section "VobSub for DirectShow"

>DetailPrint "Blah Blah" 

>SectionEnd


Section "Section 3"

  DetailPrint "Blah Blah 2"

>SectionEnd


Section "SubMux"

  DetailPrint "Blah Blah 3"

>SectionEnd


>Function .onSelChange

  ;This does the check to see if the user (de)selected the SubMux and skips rest if not enabled

   SectionGetFlags 3 $R1

   IntOp $R2 $R1& 0x80000000

   IntCmp $R2 0 Done


   SectionGetFlags 1 $R1

   IntOp $R2 $R1& 0x80000000

   IntCmp $R2 0 NotEnabled

      Goto Done

   NotEnabled:

     MessageBox MB_YESNO "Submux needs VobSub for DirectShow installed to function properly would you like to also install VobSub for DirectShow?" IDNO DontInstall

         SectionSetFlags 1 0x80000000

         Goto Done

      DontInstall:

         SectionSetFlags 3 0x0000000

   Done:

>FunctionEnd 

>