InstallOptions The Usage of NOTIFY Flag

Author: Red Wine (talk, contrib)

Description

The following example on how to manage the NOTIFY flag of an InstallOptions Custom Page, provided as a starting point for the subject at this forum thread.

The Code

outfile 'CheckboxNotify.exe'
showinstdetails show
licenseData '${NSISDIR}\License.txt'
 
!define NOCHECKED_TEXT 'Please select a checkbox'
 
!include WinMessages.nsh
!include LogicLib.nsh
 
page license
page custom CustomCreate CustomLeave
page instfiles
 
section -
 
sectionend
 
function .onInit
initpluginsdir
gettempfilename $0
rename $0 '$PLUGINSDIR\custom.ini'
call WriteIni
functionend
 
function CustomCreate
push $R1 ;park contains of $R1 to the stack
InstallOptions::InitDialog /NOUNLOAD '$PLUGINSDIR\custom.ini'
pop $R1 ;$R1 contains the dialog HWND
GetDlgItem $R0 $HWNDPARENT 1
EnableWindow $R0 0
InstallOptions::Show '$PLUGINSDIR\custom.ini'
pop $R1 ;$R1 contains the pressed button 
pop $R1 ;$R1 contains the the path to the custom.ini
pop $R1 ;$R1 got back the value from stack
functionend
 
function CustomLeave
readinistr $0 '$PLUGINSDIR\custom.ini' 'Settings' 'State'
${if} $0 == 1
readinistr $1 '$PLUGINSDIR\custom.ini' 'Field 1' 'Text'
readinistr $2 '$PLUGINSDIR\custom.ini' 'Field 5' 'HWND'
readinistr $3 '$PLUGINSDIR\custom.ini' 'Field 1' 'State'
${if} $3 == 1
SendMessage $2 ${WM_SETTEXT} 1 'STR:$1'
GetDlgItem $R0 $HWNDPARENT 1
EnableWindow $R0 1
${else}
SendMessage $2 ${WM_SETTEXT} 1 'STR:${NOCHECKED_TEXT}'
GetDlgItem $R0 $HWNDPARENT 1
EnableWindow $R0 0
${endif}
readinistr $2 '$PLUGINSDIR\custom.ini' 'Field 2' 'HWND'
SendMessage $2 ${BM_SETCHECK} 0 0
readinistr $2 '$PLUGINSDIR\custom.ini' 'Field 3' 'HWND'
SendMessage $2 ${BM_SETCHECK} 0 0
abort
${elseif} $0 == 2
readinistr $1 '$PLUGINSDIR\custom.ini' 'Field 2' 'Text'
readinistr $2 '$PLUGINSDIR\custom.ini' 'Field 5' 'HWND'
readinistr $3 '$PLUGINSDIR\custom.ini' 'Field 2' 'State'
${if} $3 == 1
SendMessage $2 ${WM_SETTEXT} 1 'STR:$1'
GetDlgItem $R0 $HWNDPARENT 1
EnableWindow $R0 1
${else}
SendMessage $2 ${WM_SETTEXT} 1 'STR:${NOCHECKED_TEXT}'
GetDlgItem $R0 $HWNDPARENT 1
EnableWindow $R0 0
${endif}
readinistr $2 '$PLUGINSDIR\custom.ini' 'Field 1' 'HWND'
SendMessage $2 ${BM_SETCHECK} 0 0
readinistr $2 '$PLUGINSDIR\custom.ini' 'Field 3' 'HWND'
SendMessage $2 ${BM_SETCHECK} 0 0
abort
${elseif} $0 == 3
readinistr $1 '$PLUGINSDIR\custom.ini' 'Field 3' 'Text'
readinistr $2 '$PLUGINSDIR\custom.ini' 'Field 5' 'HWND'
readinistr $3 '$PLUGINSDIR\custom.ini' 'Field 3' 'State'
${if} $3 == 1
SendMessage $2 ${WM_SETTEXT} 1 'STR:$1'
GetDlgItem $R0 $HWNDPARENT 1
EnableWindow $R0 1
${else}
SendMessage $2 ${WM_SETTEXT} 1 'STR:${NOCHECKED_TEXT}'
GetDlgItem $R0 $HWNDPARENT 1
EnableWindow $R0 0
${endif}
readinistr $2 '$PLUGINSDIR\custom.ini' 'Field 1' 'HWND'
SendMessage $2 ${BM_SETCHECK} 0 0
readinistr $2 '$PLUGINSDIR\custom.ini' 'Field 2' 'HWND'
SendMessage $2 ${BM_SETCHECK} 0 0
abort
${endif}
functionend
 
function WriteIni
WriteIniStr '$PLUGINSDIR\custom.ini' 'Settings' 'NumFields' '5'
 
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'Type' 'Checkbox'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'Left' '2'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'Top' '2'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'Right' '100'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'Bottom' '14'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'Text' 'Checkbox one'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'State' '0'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'Flags' 'NOTIFY'
 
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'Type' 'Checkbox'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'Left' '2'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'Top' '18'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'Right' '100'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'Bottom' '32'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'Text' 'Checkbox two'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'State' '0'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'Flags' 'NOTIFY'
 
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 3' 'Type' 'Checkbox'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 3' 'Left' '2'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 3' 'Top' '36'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 3' 'Right' '100'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 3' 'Bottom' '50'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 3' 'Text' 'Checkbox three'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 3' 'State' '0'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 3' 'Flags' 'NOTIFY'
 
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 4' 'Type' 'GroupBox'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 4' 'Left' '30'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 4' 'Top' '70'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 4' 'Right' '-31'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 4' 'Bottom' '120'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 4' 'Text' 'Select Checkbox'
 
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 5' 'Type' 'Text'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 5' 'Left' '40'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 5' 'Top' '90'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 5' 'Right' '-41'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 5' 'Bottom' '105'
WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 5' 'State' '${NOCHECKED_TEXT}'
Functionend