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

License

This script is provided 'as-is', without any express or implied warranty. In no event will the author be held liable for any damages arising from the use of this code.

Permission is granted to anyone to use this script for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:

1. The origin of this script must not be misrepresented; you must not claim that you wrote the original code. If you use this script in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered versions must be plainly marked as such, and must not be misrepresented as being the original header file.
3. This notice may not be removed or altered from any distribution.