;----------------------------------------------------------------
Name "ProgressBar Test"
OutFile "pb_demo.exe"

;----------------------------------------------------------------
!include "mui.nsh"

!insertmacro MUI_PAGE_WELCOME
!insertmacro MUI_PAGE_INSTFILES
!insertmacro MUI_PAGE_FINISH
!insertmacro MUI_LANGUAGE "English"

;----------------------------------------------------------------
!define PBM_SETPOS 0x0402
!define IDC_PROGBAR 1004

;----------------------------------------------------------------
ShowInstDetails show
AutoCloseWindow false

;----------------------------------------------------------------
Section SEC_0 IDX_0
    DetailPrint "Begin SEC_0"
    
    Call DisableSec
    
    Sleep 1000
    DetailPrint "End   SEC_0"
SectionEnd

Section SEC_1 IDX_1
    DetailPrint "Begin SEC_1"
    Sleep 1000
    DetailPrint "End   SEC_1"
SectionEnd

Section SEC_2 IDX_2
    DetailPrint "Begin SEC_2"
    Sleep 1000
    DetailPrint "End   SEC_2"
SectionEnd

Section SEC_3 IDX_3
    DetailPrint "Begin SEC_3"
    Sleep 1000
    DetailPrint "End   SEC_3"

    Call UpdateProgBar 
SectionEnd

Function DisableSec
    SectionSetFlags ${IDX_2} 0
FunctionEnd

Function UpdateProgBar
        FindWindow $R0 '#32770' '' $HWNDPARENT
        GetDlgItem $R1 $R0 ${IDC_PROGBAR}
        SendMessage $R1 ${PBM_SETPOS} 29774 0 $R2
        DetailPrint "RESULT SendMessage = $R2"
        MessageBox MB_OK "Progress bar updated!"
FunctionEnd