nsis禁用组件页的下一步按钮

Question

我正在写一个使用nsis的安装程序。在".onInit“上，Iam检查必备软件是否存在，并在此基础上启用或禁用component page.Here的"Next”按钮，这是iam正在尝试的

Function .onInit
     ${If} $JavaExists == false ;check if java is installed
          ${OrIf} $TomcatExists == false ;check if tomcat is installed
               ${OrIf} $MysqlExists == false ;check if mysql is installed
               ;code to disable next button of component page
${EndIf}
FunctionEnd

Answer 1

组件页在.oninit中不存在，需要在组件页的显示回调中调用GetDlgItem+EnableWindow ...

Answer 2

此代码可能会对您有所帮助

${NSD_CreateButton} 40% 150 80 14u "Next"
Pop $BUTTON
EnableWindow $BUTTON 0--------;; disables button