NSIS/Examples/one-section.nsi

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Name example
OutFile setup.exe
ComponentText "please choose just one but the the default"
Section !Required
SectionIn RO
SectionEnd
Section "optional #1" sec1
SectionEnd
Section "optional #2" sec2
SectionEnd
Section "optional #3" sec3
SectionEnd
Section "optional #4" sec4
SectionEnd
!define SECTION_OFF 0x7FFFFFFF
Function .onInit
StrCpy $1 ${sec1} ; Gotta remember which section we are at now...
SectionGetFlags ${sec1} $0
IntOp $0 $0 | 0x80000000
SectionSetFlags ${sec1} $0
SectionGetFlags ${sec2} $0
IntOp $0 $0 & ${SECTION_OFF}
SectionSetFlags ${sec2} $0
SectionGetFlags ${sec3} $0
IntOp $0 $0 & ${SECTION_OFF}
SectionSetFlags ${sec3} $0
SectionGetFlags ${sec4} $0
IntOp $0 $0 & ${SECTION_OFF}
SectionSetFlags ${sec4} $0
FunctionEnd
Function .onSelChange
; Turn off old selected section
StrCmp $1 ${sec1} 0 +4
SectionGetFlags ${sec1} $0
IntOp $0 $0 & ${SECTION_OFF}
SectionSetFlags ${sec1} $0
StrCmp $1 ${sec2} 0 +4
SectionGetFlags ${sec2} $0
IntOp $0 $0 & ${SECTION_OFF}
SectionSetFlags ${sec2} $0
StrCmp $1 ${sec3} 0 +4
SectionGetFlags ${sec3} $0
IntOp $0 $0 & ${SECTION_OFF}
SectionSetFlags ${sec3} $0
StrCmp $1 ${sec4} 0 +4
SectionGetFlags ${sec4} $0
IntOp $0 $0 & ${SECTION_OFF}
SectionSetFlags ${sec4} $0
; Now remember the current selection
SectionGetFlags ${sec1} $0
IntOp $0 $0 & 0x80000000
IntCmp $0 0x80000000 0 +2 +2
StrCpy $1 ${sec1}
SectionGetFlags ${sec2} $0
IntOp $0 $0 & 0x80000000
IntCmp $0 0x80000000 0 +2 +2
StrCpy $1 ${sec2}
SectionGetFlags ${sec3} $0
IntOp $0 $0 & 0x80000000
IntCmp $0 0x80000000 0 +2 +2
StrCpy $1 ${sec3}
SectionGetFlags ${sec4} $0
IntOp $0 $0 & 0x80000000
IntCmp $0 0x80000000 0 +2 +2
StrCpy $1 ${sec4}
FunctionEnd