Network check

[ginther]

Hello @all,

i have two install options. Local and Network. I want to check at the begin of setup.exe, if the network resource is reachable. If the network isn't reachable (e.g. setup.exe is on a CD) the option should not be available.

Function .onInit

!insertmacro MUI_LANGDLL_DISPLAY
StrCpy $1 ${LocInstHint}

IfFileExists "$EXEDIR\fileexists.txt" NetworkExists NetworkUnreachable

NetworkUnreachable:
MessageBox MB_OK "file isn't installed"
' code to disable the network install option ???

NetworkExists:
MessageBox MB_OK "file is installed"

FunctionEnd


Function .onSelChange

!insertmacro StartRadioButtons $1
!insertmacro RadioButton ${LocInstHint2}
!insertmacro RadioButton ${LocInstHint}
!insertmacro EndRadioButtons

FunctionEnd

Is .onInit the right place for this check?
How can I check/uncheck the RadioButton with code?


Thx ginther

[Comm@nder21]

i'd do the check in the init function of the components page.

there you need to use SectionGetFlags and SectionSetFlags to set/unset the selected flag on the sections.

[ginther]

Thx Comm@nder21 for the fast reply.

ginther

[ginther]

The NSIS helpfile show an example for an hidden Section:

Section "-hidden section"
SectionEnd

Isn't it possible to use a variable for "-hidden section"?
In my project the variable $InstallNetwork isn't able to hide the Section (see Code). There are always the specified section called -Installation (network) available. Is there a possibility to solve this problem?

Thx



Section /o $InstallNetwork LocInstHint2
...
SectionEnd


Function .onInit

!insertmacro MUI_LANGDLL_DISPLAY
StrCpy $1 ${LocInstHint} ; Group 1 - Option 1 is selected by default

IfFileExists "$EXEDIR\fileexists.txt" NetworkExists NetworkUnreachable

NetworkUnreachable:
MessageBox MB_OK "file isn't installed"
StrCpy $InstallNetwork "-Installation (network)"

GoTo Label


NetworkExists:
MessageBox MB_OK "file is installed"
StrCpy $InstallNetwork "Installation (network)"

Label:

FunctionEnd

[kichik]

To hide a section, set its name to nothing at runtime using SectionSetText. The hyphen is only checked on compile time.

[ginther]

Hello kichik,
i solved the problem by using a similar method.

...

NetworkUnreachable:
MessageBox MB_OK "file isn't installed"
StrCpy $InstallNetwork ""
...

But i think using SectionSetText section_index "" is the prefered method.

Thx for your hint.