Next Button is Visible when No Section is Selected

Hello everyone,

I have Created a new Installer Package of My project, I have added two sections in that ,
1. Installer & 2. Uninstaller.

I want to Disable the Next Button while no option is selected in that sections.

When one of the option is select "Next" button is enable, pls suggest me.

Thanks
lmenaria

Use the .onSelChange function to check when Sections are checked:

!include Sections.nsh



Section "A section" Sec1

SectionEnd



Section "Another section" Sec2

SectionEnd



Function .onSelChange



 SectionGetFlags ${Sec1} $R0

 IntOp $R0 $R0 & ${SF_SELECTED}

 StrCmp $R0 ${SF_SELECTED} +4



 SectionGetFlags ${Sec2} $R0

 IntOp $R0 $R0 & ${SF_SELECTED}

 StrCmp $R0 ${SF_SELECTED} 0 +4



 GetDlgItem $R0 $HWNDPARENT 1

 EnableWindow $R0 1



 Goto +3



 GetDlgItem $R0 $HWNDPARENT 1

 EnableWindow $R0 0



FunctionEnd

-Stu

Or with the LogicLib:

!include LogicLib.nsh



Function .onSelChange



  GetDlgItem $0 $HWNDPARENT 1



  ${If} ${SectionIsSelected} ${Sec1}

  ${OrIf} ${SectionIsSelected} ${Sec2}



    EnableWindow $0 1



  ${Else}



    EnableWindow $0 0



  ${EndIf}



FunctionEnd