Page calling command

khal_nayak · 6th June 2003, 00:15

how to call or take the user back to a specific page of the installer by just specifing some command in the section?
I mean when u specify some command in a section and when the user selects the components and clicks next, the installation starts. What i want is that if the user selects a specific section then during installation, a msgbox should appear on clicking which the user be send to some previous page of the installer, eg:license, welcome, component. So then what command is there to make the user jump to diffrent pages?

iceman_k · 6th June 2003, 01:02

None really that I know of.
You may be able to go to the next or previous page by sending a WM_COMMAND message to the window with the ID of the next or previous button. Never tried it, so I don't know if it will work.
BTW, like your nick.

kichik · 6th June 2003, 09:37

You can add another page after the instfiles page and skip it if the user hasn't selected the right component.

khal_nayak · 6th June 2003, 10:02

is it possible to disable the next button on the components page if the user doesnt select the appropriate install type from the drop down list?

kichik · 6th June 2003, 10:06

It's not possible to disable it, but it's possible to not allow the user to continue. Call Abort from the leave function of the page and the user won't be able to move on.

khal_nayak · 6th June 2003, 16:08

im not so good at scripting the NSIS so can u plz type in that part of the script so i know what u exactly mean.
Secondly, in my installer there r some exe files which while installing update some older version of them on the computer but the problem is u cant update a dll or exe file if it is already running in the background or foreground so then is it possible to detect that such files r running and that the installer can close such running programs and then update the file and then make it run again using exec? Like what the msn messenger installer has, it closes the msn that is running in the system tray and then updates the exe file and then runs it again?

kichik · 7th June 2003, 09:25

As for the leave function:

code:
Page components "" "" compLeave

#...

!include Sections.nsh

Function compLeave

  # make sure ${mySec} is defined!

  SectionGetFlags ${mySec} $0

  IntOp $0 $0 & ${SF_SELECTED}

  StrCmp $0 ${SF_SELECTED} ok

    # the user didn't select the required section,

    # don't let him leave the page

    Abort

  ok:

FunctionEnd

In case you're using the MUI see the MUI readme about defining a leave function for the components page.

As for updating in use DLLs, use the UpgradeDLL macro.

I don't know how to close messenger yet. There is a recent thread about it. I really recommend you don't use the process termination method though, it's far from being the ideal way. There are also some other less recent threads about closing programs, some linked from that thread.

khal_nayak · 7th June 2003, 15:52

thanx m8, i finally got the script working my way.
Plz keep me informed if u get any news bout some way to close running exe files and progs.

6th June 2003, 00:15	#1
khal_nayak Junior Member Join Date: Jun 2003 Posts: 9	Page calling command how to call or take the user back to a specific page of the installer by just specifing some command in the section? I mean when u specify some command in a section and when the user selects the components and clicks next, the installation starts. What i want is that if the user selects a specific section then during installation, a msgbox should appear on clicking which the user be send to some previous page of the installer, eg:license, welcome, component. So then what command is there to make the user jump to diffrent pages?

6th June 2003, 01:02	#2
iceman_k NSIS Dev Join Date: Feb 2003 Location: Boston, MA, U.S.A. Posts: 455	None really that I know of. You may be able to go to the next or previous page by sending a WM_COMMAND message to the window with the ID of the next or previous button. Never tried it, so I don't know if it will work. BTW, like your nick. Cheers, Iceman_K EclipseNSIS - An NSIS IDE for the Eclipse Platform \| My contributions to the wiki

6th June 2003, 09:37	#3
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,338	You can add another page after the instfiles page and skip it if the user hasn't selected the right component. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

6th June 2003, 10:06	#5
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,338	It's not possible to disable it, but it's possible to not allow the user to continue. Call Abort from the leave function of the page and the user won't be able to move on. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

7th June 2003, 09:25	#7
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,338	As for the leave function: code: Page components "" "" compLeave #... !include Sections.nsh Function compLeave # make sure ${mySec} is defined! SectionGetFlags ${mySec} $0 IntOp $0 $0 & ${SF_SELECTED} StrCmp $0 ${SF_SELECTED} ok # the user didn't select the required section, # don't let him leave the page Abort ok: FunctionEnd In case you're using the MUI see the MUI readme about defining a leave function for the components page. As for updating in use DLLs, use the UpgradeDLL macro. I don't know how to close messenger yet. There is a recent thread about it. I really recommend you don't use the process termination method though, it's far from being the ideal way. There are also some other less recent threads about closing programs, some linked from that thread. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

6th June 2003, 10:02	#4
khal_nayak Junior Member Join Date: Jun 2003 Posts: 9	is it possible to disable the next button on the components page if the user doesnt select the appropriate install type from the drop down list?

6th June 2003, 16:08	#6
khal_nayak Junior Member Join Date: Jun 2003 Posts: 9	im not so good at scripting the NSIS so can u plz type in that part of the script so i know what u exactly mean. Secondly, in my installer there r some exe files which while installing update some older version of them on the computer but the problem is u cant update a dll or exe file if it is already running in the background or foreground so then is it possible to detect that such files r running and that the installer can close such running programs and then update the file and then make it run again using exec? Like what the msn messenger installer has, it closes the msn that is running in the system tray and then updates the exe file and then runs it again?

7th June 2003, 15:52	#8
khal_nayak Junior Member Join Date: Jun 2003 Posts: 9	thanx m8, i finally got the script working my way. Plz keep me informed if u get any news bout some way to close running exe files and progs.

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