2. NSIS Discussion
  3. Refresh *.ini

Archive: Refresh *.ini


aemik
6th July 2007 08:20 UTC

Refresh *.ini
Hello,

I have following problem...

I have a costum MUI Page with a list of some software that have to be installed.
I check some Reg Strings to see if the software is installed or not. When the software is not installed you can click a button and install it now.

Now I need a refresh button for this costum page, to show that the software is now installed. Is this possible???

kichik
6th July 2007 10:22 UTC

When the page is already displayed, you cannot edit the INI. InstallOptions won't reload the INI while the page is showing. You'd have to use Windows messages or instructions like ShowWindow and EnableWindow to edit the page. How exactly does the page show the software is installed?

aemik
6th July 2007 10:41 UTC

The page looks like this:

Software 1 "not installed" Button (Install now)
Software 2 "installed" Button (disabled)
Software 3 "installed" Button (disabled)

When I click on the Installbutton I can install the software.
I need a refresh function to show that the software is now installed.

kichik
6th July 2007 10:44 UTC

But what is "software 1 installed"? Is it a label? If it is, simply get its HWND by reading it from the INI and send it WM_SETTEXT. See Examples\InstallOptions\testnotify.nsi for a working example of such an operation.

aemik
6th July 2007 11:18 UTC

"Software 1" is a label
"not installed" is a label
"Button (Install now)" is a button

kichik
6th July 2007 11:23 UTC

Then modify the second label using SendMessage as explained above.

aemik
6th July 2007 11:33 UTC

I dont undertstand winmessages.nsh. What is it good for?? Ive read the docu but i dont know how to use these commands.

kichik
6th July 2007 11:57 UTC

It contains definitions like WM_SETTEXT.

Galatea
8th November 2007 16:06 UTC

I have nearly the same problem, i try to do some checks and want to disply it by checkboxes.

but its only updated on the end of the function.
Its it possible to get a refresh of the UI after the send message command?


Function CustomLeave
GetDlgItem $R0 $HWNDPARENT 1
EnableWindow $R0 0
   readinistr $2 '$PLUGINSDIR\systemcheck.ini' 'Field 4' 'HWND'
   SendMessage $2 ${BM_SETCHECK} 1 0
   Sleep 1000

   readinistr $2 '$PLUGINSDIR\systemcheck.ini' 'Field 5' 'HWND'
   SendMessage $2 ${BM_SETCHECK} 1 0
   Sleep 1000
...
...
EnableWindow $R0 1
FunctionEnd

kichik
8th November 2007 17:22 UTC

That piece of code looks fine and should update the display by checking the check boxes. There must be something else in the script preventing it from actually happening. Attach the complete script.

Galatea
9th November 2007 08:59 UTC


!insertmacro MUI_PAGE_WELCOME
Page custom CustomShow CustomLeave
!insertmacro MUI_PAGE_LICENSE License.rtf
.
.
.
Function CustomShow 
    GetDlgItem $R0 $HWNDPARENT 1
    SendMessage $R0 ${WM_SETTEXT} 1 "STR:Check"
    !insertmacro MUI_HEADER_TEXT "System Check" "Checking System requirements"
    !insertmacro INSTALLOPTIONS_DISPLAY "systemcheck.ini" 
FunctionEnd

Function CustomLeave
  GetDlgItem $R0 $HWNDPARENT 1
  EnableWindow $R0 0
  ;TODO check WinVersion

   readinistr $2 '$PLUGINSDIR\systemcheck.ini' 'Field 4' 'HWND'
   SendMessage $2 ${BM_SETCHECK} 1 0
   Sleep 1000

  ;TODO check browser
   readinistr $2 '$PLUGINSDIR\systemcheck.ini' 'Field 5' 'HWND'
   SendMessage $2 ${BM_SETCHECK} 1 0
   Sleep 1000

    !insertmacro IsUserAdmin $0
    IntCmp $0 1 Ok AdminWarning
    AdminWarning:
        MessageBox MB_OK "You have no administration rights on this PC$\nAsk the Administrator for more information."
        Abort
    OK:
        readinistr $2 '$PLUGINSDIR\systemcheck.ini' 'Field 6' 'HWND'
        SendMessage $2 ${BM_SETCHECK} 1 0
   Sleep 1000
        MessageBox MB_OK "DEBUG:STOP"
EnableWindow $R0 1
FunctionEnd

systemcheck.ini:
[Settings]
NumFields=6

[Field 1]
Type=Label
Left=107
Top=73
Right=187
Bottom=82
Text=Administrator rights

[Field 2]
Type=Label
Left=107
Top=52
Right=187
Bottom=61
Text=Browser (IE 7)

[Field 3]
Type=Label
Left=107
Top=33
Right=187
Bottom=42
Text=Windows Version

[Field 4]
Type=CheckBox
Left=91
Top=32
Right=107
Bottom=42
Flags=DISABLED|NOTIFY

[Field 5]
Type=CheckBox
Left=91
Top=52
Right=107
Bottom=62
Flags=DISABLED|NOTIFY

[Field 6]
Type=CheckBox
Left=91
Top=72
Right=107
Bottom=82
Flags=DISABLED|NOTIFY


The checkboxes are disabled, they should be only statusdisplay, not selectabel by user.
Also on enabled they will not updated after setting, seperate labels so the text is black instead of greyout.

Macro "IsUserAdmin" is copied from http:// nsis.sourceforge.net /Check_if_the_current_user_is_an_Administrator

The window will be updated at the end of function, when the Messagebox is displayed,
but i need a update before every sleep

kichik
9th November 2007 10:37 UTC

You can't both sleep and update the screen. The function must return in order for the message loop to process drawing of the dialog.

Galatea
9th November 2007 12:48 UTC

thanx for the fast answer.

If I return after the first check i need another user interaction, is it possible to triger it automatical again? so i can count it how often it is called and jumps out after last loop.

or any other idea how to implements a step-by-step display without interaction?

Afrow UK
9th November 2007 13:20 UTC

You would really need to write a plug-in in C/C++ to do this. For example, create a dialog in your Visual Studio designer and then modify it asynchronously in another thread at run time. This is basically how the LockedList plug-in works with a dynamically updated list box.

Stu

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