NSD_CreateText not populating stack - stack

Question

For my NSIS script I need some user info, so I have the following code:
Function tomcatConfig
!insertmacro MUI_HEADER_TEXT "$(TEXT_CONF_TITLE)" "$(TEXT_CONF_SUBTITLE)"
nsDialogs::Create 1018
Pop $0
${NSD_CreateLabel} 0 2u 100u 14u "Tomcat shutdown port"
Pop $R0
${NSD_CreateText} 150u 0 50u 12u "8005"
Pop $CtlTomcatPortShutdown
${NSD_SetTextLimit} $CtlTomcatPortShutdown 5
${NSD_CreateLabel} 0 19u 100u 14u "Tomcat default http port"
Pop $R0
${NSD_CreateText} 150u 17u 50u 12u "80"
Pop $CtlTomcatPortHttp
${NSD_SetTextLimit} $CtlTomcatPortHttp 5
${NSD_CreateLabel} 0 36u 100u 14u "Tomcat default https port"
Pop $R0
${NSD_CreateText} 150u 34u 50u 12u "443"
Pop $CtlTomcatPortSSL
${NSD_SetTextLimit} $CtlTomcatPortSSL 5
${NSD_CreateLabel} 0 57u 140u 14u "Tomcat service name"
Pop $R0
${NSD_CreateText} 150u 55u 140u 12u "Servicename"
Pop $CtlTomcatServiceName
${NSD_SetFocus} $CtlTomcatPortShutdown
nsDialogs::Show
FunctionEnd
When I am using $CtlTomcatPortShutdown, $CtlTomcatPortHttp, $CtlTomcatPortHttp, $CtlTomcatServiceName in my script, I get returned some random number, instead of the input I expect (service name, port numbers etc.).
This sample from NSIS NsDialog page also looks invalid on Windows 10, when I use $Text I am returned a random number as well.
!include nsDialogs.nsh
!include LogicLib.nsh
Name nsDialogs
OutFile nsDialogs.exe
XPStyle on
Var Dialog
Var Label
Var Text
Page custom nsDialogsPage
Page instfiles
Function nsDialogsPage
nsDialogs::Create 1018
Pop $Dialog
${If} $Dialog == error
Abort
${EndIf}
${NSD_CreateLabel} 0 0 100% 12u "Hello, welcome to nsDialogs!"
Pop $Label
${NSD_CreateText} 0 13u 100% -13u "Type something here..."
Pop $Text
nsDialogs::Show
FunctionEnd
Section
DetailPrint "hello $Text"
SectionEnd

Answer 1

The ${NSD_CreateXYZ} macros return the handle (HWND) to the control on the stack, not a random number. This handle can be used in calls to ${NSD_GetText} and ${NSD_SetText} etc.