Adding a checkbox to the MUI_WELCOME page

Jamyn · 29th September 2005, 20:59

Hi all,

I am curious if anyone is aware of a way to add one component to a MUI page (specifically the MUI_WELCOME page). Basically, I want to add one checkbox at the bottom of the welcome page that says "Check online for updates". I could of course write a custom page just for that one checkbox, but I think it'd be cleaner to integrate it into the existing MUI welcome page.

I saw the following in the manual, and I will be testing out some ideas in a few minutes:

Quote:

MUI_WELCOMEFINISHPAGE_INI ini_file
InstallOptions INI file for the Welcome page and the Finish page.
Default: ${NSISDIR}\Contrib\Modern UI\ioSpecial.ini

But I don't want the "Check for updates" to show up on the finish page, just the welcome page. Well, if anyone has expertise in something like this, a basic shove in the right direction would be appreciated. Thanks

Jamyn · 29th September 2005, 21:36

I'm guessing the easiest way to do this would be to add a PRE and LEAVE function to the MUI_WELCOME page, with the PRE function adding the checkbox to the MUI_WELCOME InstallOptions file, and the LEAVE function editing it back out? Hmmm. I'll have to look at it when I get home.

Jamyn · 30th September 2005, 22:05

(Picture attached)

PHP Code:


			
Function .onInit

    InitPluginsDir

        !insertmacro MUI_INSTALLOPTIONS_EXTRACT "ioSpecial.ini"

FunctionEnd



...



Function PageWelcomeUpdateCheckbox

    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Settings" "NumFields" "4"

    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" "Type" "Checkbox"

    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" "Left" "120"

    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" "Top" "170"

    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" "Right" "250"

    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" "Bottom" "180"

    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" "Text" "Check for program updates?"

    ; Bug?: The following line changes the checkbox to the right side (TRANSPARENT is invalid?)

    ;    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" "Flags" "NOTIFY|TRANSPARENT"

    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" "Flags" "NOTIFY"

    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" "State" "1"

    ; Field 3 overlaps the checkbox a little; shrink it.

    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 3" "Bottom" "169"

FunctionEnd



...



    !define MUI_PAGE_CUSTOMFUNCTION_PRE "PageWelcomeUpdateCheckbox" ; Add update checkbox

    !insertmacro MUI_PAGE_WELCOME



...

(I need to write the exit function for MUI_WELCOME to work with the checkbox, but that's besides the point)

So far, things seem fine, with one caveat: The text with the checkbox does not have the same white background as the rest of the welcome page. Example picture attached.

Do I need to redraw the screen somehow? Is there a way to tell NSIS to use the same background for the checkbox as the rest of the welcome page? Any pointers would be greatly appreciated. I just have never tried to add additional components to an existing MUI page, so maybe I am missing something obvious. Anyway... any help or pointers would be greatly appreciated

kichik · 30th September 2005, 22:17

Use SetCtlColors on the checkbox. Take a look at Contrib\Modern UI\System.nsh, it's done there a lot.

Jamyn · 30th September 2005, 22:33

Thanks for the help sir!

Jamyn · 2nd October 2005, 06:43

Hmm. Well, I ran into a brick wall with one of two things (I've never tried to modify a built in MUI page before).

1) Maybe I am modifying the page too early, and it's being redone by the actual MUI_WELCOMEPAGE macro. I am inserting the PRE page right before MUI_WELCOMEPAGE though.

2) I am not getting the right "hwnd" or handle for the checkbox. I'm not sure how to figure out what the handle is. I know when I use InstallOptions, the correct item is "1200 + <label> -1." But I don't think that applies to built in MUI pages. So item #4 in the inSpecial.ini file.. hmm, well, 1203 does not seem to be doing the trick (the background of the checkbox is not white.

So for now, I have been unsuccessful. I am going to just insert another custom page right after the welcome page until I can figure this out :P Thanks for the help all.

-J

Animaether · 3rd October 2005, 02:17

You could always use WinSpy (google it) to get the control's ID (near the bottom, in HEX, convert to DEC). Really useful little tool, that.

Jamyn · 4th October 2005, 06:13

Thanks all, for the help. I now have it working as intended. I will do a writeup describing some of the mistakes I made, and the proper way to do this, and submit it to the Wiki or something similar.

kichik · 4th October 2005, 09:54

Quote:

Originally posted by Jamyn
I will do a writeup describing some of the mistakes I made, and the proper way to do this, and submit it to the Wiki or something similar.

Great, thanks!

30th September 2005, 22:33	#5
Jamyn Junior Member Join Date: Aug 2002 Location: Texas Posts: 36	Thanks! Thanks for the help sir!

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29th September 2005, 21:36	#2
Jamyn Junior Member Join Date: Aug 2002 Location: Texas Posts: 36	I'm guessing the easiest way to do this would be to add a PRE and LEAVE function to the MUI_WELCOME page, with the PRE function adding the checkbox to the MUI_WELCOME InstallOptions file, and the LEAVE function editing it back out? Hmmm. I'll have to look at it when I get home.

30th September 2005, 22:17	#4
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	Use SetCtlColors on the checkbox. Take a look at Contrib\Modern UI\System.nsh, it's done there a lot. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

2nd October 2005, 06:43	#6
Jamyn Junior Member Join Date: Aug 2002 Location: Texas Posts: 36	Hmm. Well, I ran into a brick wall with one of two things (I've never tried to modify a built in MUI page before). 1) Maybe I am modifying the page too early, and it's being redone by the actual MUI_WELCOMEPAGE macro. I am inserting the PRE page right before MUI_WELCOMEPAGE though. 2) I am not getting the right "hwnd" or handle for the checkbox. I'm not sure how to figure out what the handle is. I know when I use InstallOptions, the correct item is "1200 + <label> -1." But I don't think that applies to built in MUI pages. So item #4 in the inSpecial.ini file.. hmm, well, 1203 does not seem to be doing the trick (the background of the checkbox is not white. So for now, I have been unsuccessful. I am going to just insert another custom page right after the welcome page until I can figure this out :P Thanks for the help all. -J

3rd October 2005, 02:17	#7
Animaether Major Dude Join Date: Jun 2001 Posts: 1,173	You could always use WinSpy (google it) to get the control's ID (near the bottom, in HEX, convert to DEC). Really useful little tool, that.

4th October 2005, 06:13	#8
Jamyn Junior Member Join Date: Aug 2002 Location: Texas Posts: 36	Thanks all, for the help. I now have it working as intended. I will do a writeup describing some of the mistakes I made, and the proper way to do this, and submit it to the Wiki or something similar.