nsis disable next button of component page

Question

I am writing a installer using nsis. On ".onInit" Iam checking prerequisite software are there or not and based on that I want to enable or disable "Next" button of component page.Here is what iam trying

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

.oninit中不存在组件页面，您需要在组件页面的show回调中调用GetDlgItem + EnableWindow 。

Answer 2

this code may help you

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