; GetParent
; input, top of stack (e.g. C:\Program Files\Poop)
; output, top of stack (replaces, with e.g. C:\Program Files)
; modifies no other variables.
;
; Usage:
; Push "C:\Program Files\Directory\Whatever"
; Call GetParent
; Pop $R0
; ; at this point $R0 will equal "C:\Program Files\Directory"
Function GetParent
Exch $R0
Push $R1
Push $R2
Push $R3
StrCpy $R1 0
StrLen $R2 $R0
loop:
IntOp $R1 $R1 + 1
IntCmp $R1 $R2 get 0 get
StrCpy $R3 $R0 1 -$R1
StrCmp $R3 "\" get
Goto loop
get:
StrCpy $R0 $R0 -$R1
Pop $R3
Pop $R2
Pop $R1
Exch $R0
FunctionEnd
; TrimNewlines ; input, top of stack (e.g. whatever$\r$\n) ; output, top of stack (replaces, with e.g. whatever) ; modifies no other variables. Function TrimNewlines Exch $R0 Push $R1 Push $R2 StrCpy $R1 0 loop: IntOp $R1 $R1 - 1 StrCpy $R2 $R0 1 $R1 StrCmp $R2 "$\r" loop StrCmp $R2 "$\n" loop IntOp $R1 $R1 + 1 IntCmp $R1 0 no_trim_needed StrCpy $R0 $R0 $R1 no_trim_needed: Pop $R2 Pop $R1 Exch $R0 FunctionEnd
; GetParameters
; input, none
; output, top of stack (replaces, with e.g. whatever)
; modifies no other variables.
Function GetParameters
Push $R0
Push $R1
Push $R2
Push $R3
StrCpy $R2 1
StrLen $R3 $CMDLINE
;Check for quote or space
StrCpy $R0 $CMDLINE $R2
StrCmp $R0 '"' 0 +3
StrCpy $R1 '"'
Goto loop
StrCpy $R1 " "
loop:
IntOp $R2 $R2 + 1
StrCpy $R0 $CMDLINE 1 $R2
StrCmp $R0 $R1 get
StrCmp $R2 $R3 get
Goto loop
get:
IntOp $R2 $R2 + 1
StrCpy $R0 $CMDLINE 1 $R2
StrCmp $R0 " " get
StrCpy $R0 $CMDLINE "" $R2
Pop $R3
Pop $R2
Pop $R1
Exch $R0
FunctionEnd
; StrStr
; input, top of stack = string to search for
; top of stack-1 = string to search in
; output, top of stack (replaces with the portion of the string remaining)
; modifies no other variables.
;
; Usage:
; Push "this is a long ass string"
; Push "ass"
; Call StrStr
; Pop $R0
; ($R0 at this point is "ass string")
Function StrStr
Exch $R1 ; st=haystack,old$R1, $R1=needle
Exch ; st=old$R1,haystack
Exch $R2 ; st=old$R1,old$R2, $R2=haystack
Push $R3
Push $R4
Push $R5
StrLen $R3 $R1
StrCpy $R4 0
; $R1=needle
; $R2=haystack
; $R3=len(needle)
; $R4=cnt
; $R5=tmp
loop:
StrCpy $R5 $R2 $R3 $R4
StrCmp $R5 $R1 done
StrCmp $R5 "" done
IntOp $R4 $R4 + 1
Goto loop
done:
StrCpy $R1 $R2 "" $R4
Pop $R5
Pop $R4
Pop $R3
Pop $R2
Exch $R1
FunctionEnd
; GetWindowsVersion
;
; Based on Yazno's function, http://yazno.tripod.com/powerpimpit/
; Updated by Joost Verburg
;
; Returns on top of stack
;
; Windows Version (95, 98, ME, NT x.x, 2000, XP, 2003)
; or
; '' (Unknown Windows Version)
;
; Usage:
; Call GetWindowsVersion
; Pop $R0
; ; at this point $R0 is "NT 4.0" or whatnot
Function GetWindowsVersion
Push $R0
Push $R1
ClearErrors
ReadRegStr $R0 HKLM \
"SOFTWARE\Microsoft\Windows NT\CurrentVersion" CurrentVersion
IfErrors 0 lbl_winnt
; we are not NT
ReadRegStr $R0 HKLM \
"SOFTWARE\Microsoft\Windows\CurrentVersion" VersionNumber
StrCpy $R1 $R0 1
StrCmp $R1 '4' 0 lbl_error
StrCpy $R1 $R0 3
StrCmp $R1 '4.0' lbl_win32_95
StrCmp $R1 '4.9' lbl_win32_ME lbl_win32_98
lbl_win32_95:
StrCpy $R0 '95'
Goto lbl_done
lbl_win32_98:
StrCpy $R0 '98'
Goto lbl_done
lbl_win32_ME:
StrCpy $R0 'ME'
Goto lbl_done
lbl_winnt:
StrCpy $R1 $R0 1
StrCmp $R1 '3' lbl_winnt_x
StrCmp $R1 '4' lbl_winnt_x
StrCpy $R1 $R0 3
StrCmp $R1 '5.0' lbl_winnt_2000
StrCmp $R1 '5.1' lbl_winnt_XP
StrCmp $R1 '5.2' lbl_winnt_2003 lbl_error
lbl_winnt_x:
StrCpy $R0 "NT $R0" 6
Goto lbl_done
lbl_winnt_2000:
Strcpy $R0 '2000'
Goto lbl_done
lbl_winnt_XP:
Strcpy $R0 'XP'
Goto lbl_done
lbl_winnt_2003:
Strcpy $R0 '2003'
Goto lbl_done
lbl_error:
Strcpy $R0 ''
lbl_done:
Pop $R1
Exch $R0
FunctionEnd
; GetIEVersion
;
; Based on Yazno's function, http://yazno.tripod.com/powerpimpit/
; Returns on top of stack
; 1-6 (Installed IE Version)
; or
; '' (IE is not installed)
;
; Usage:
; Call GetIEVersion
; Pop $R0
; ; at this point $R0 is "5" or whatnot
Function GetIEVersion
Push $R0
ClearErrors
ReadRegStr $R0 HKLM "Software\Microsoft\Internet Explorer" "Version"
IfErrors lbl_123 lbl_456
lbl_456: ; ie 4+
Strcpy $R0 $R0 1
Goto lbl_done
lbl_123: ; older ie version
ClearErrors
ReadRegStr $R0 HKLM "Software\Microsoft\Internet Explorer" "IVer"
IfErrors lbl_error
StrCpy $R0 $R0 3
StrCmp $R0 '100' lbl_ie1
StrCmp $R0 '101' lbl_ie2
StrCmp $R0 '102' lbl_ie2
StrCpy $R0 '3' ; default to ie3 if not 100, 101, or 102.
Goto lbl_done
lbl_ie1:
StrCpy $R0 '1'
Goto lbl_done
lbl_ie2:
StrCpy $R0 '2'
Goto lbl_done
lbl_error:
StrCpy $R0 ''
lbl_done:
Exch $R0
FunctionEnd
; IsDotNETInstalled
;
; Usage:
; Call IsDotNETInstalled
; Pop $0
; StrCmp $0 1 found.NETFramework no.NETFramework
Function IsDotNETInstalled
Push $0
Push $1
Push $2
Push $3
Push $4
ReadRegStr $4 HKEY_LOCAL_MACHINE \
"Software\Microsoft\.NETFramework" "InstallRoot"
# remove trailing back slash
Push $4
Exch $EXEDIR
Exch $EXEDIR
Pop $4
# if the root directory doesn't exist .NET is not installed
IfFileExists $4 0 noDotNET
StrCpy $0 0
EnumStart:
EnumRegKey $2 HKEY_LOCAL_MACHINE \
"Software\Microsoft\.NETFramework\Policy" $0
IntOp $0 $0 + 1
StrCmp $2 "" noDotNET
StrCpy $1 0
EnumPolicy:
EnumRegValue $3 HKEY_LOCAL_MACHINE \
"Software\Microsoft\.NETFramework\Policy\$2" $1
IntOp $1 $1 + 1
StrCmp $3 "" EnumStart
IfFileExists "$4\$2.$3" foundDotNET EnumPolicy
noDotNET:
StrCpy $0 0
Goto done
foundDotNET:
StrCpy $0 1
done:
Pop $4
Pop $3
Pop $2
Pop $1
Exch $0
FunctionEnd
; IsFlashInstalled
;
; By Yazno, http://yazno.tripod.com/powerpimpit/
; Returns on top of stack
; 0 (Flash is not installed)
; or
; 1 (Flash is installed)
;
; Usage:
; Call IsFlashInstalled
; Pop $R0
; ; $R0 at this point is "1" or "0"
Function IsFlashInstalled
Push $R0
ClearErrors
ReadRegStr $R0 HKCR "CLSID\{D27CDB6E-AE6D-11cf-96B8-444553540000}" ""
IfErrors lbl_na
StrCpy $R0 1
Goto lbl_end
lbl_na:
StrCpy $R0 0
lbl_end:
Exch $R0
FunctionEnd
; ConnectInternet (uses Dialer plugin)
; Written by Joost Verburg
;
; This function attempts to make a connection to the internet if there is no
; connection available. If you are not sure that a system using the installer
; has an active internet connection, call this function before downloading
; files with NSISdl.
;
; The function requires Internet Explorer 3, but asks to connect manually if
; IE3 is not installed.
Function ConnectInternet
Push $R0
ClearErrors
Dialer::AttemptConnect
IfErrors noie3
Pop $R0
StrCmp $R0 "online" connected
MessageBox MB_OK|MB_ICONSTOP "Cannot connect to the internet."
Quit ;This will quit the installer. You might want to add your own error handling.
noie3:
; IE3 not installed
MessageBox MB_OK|MB_ICONINFORMATION "Please connect to the internet now."
connected:
Pop $R0
FunctionEnd
System::Call 'kernel32::GetModuleFileNameA(i 0, t .R0, i 1024) i r1' ;$R0 will contain the installer filename
Put the following code in your .onInit function:
System::Call 'kernel32::CreateMutexA(i 0, i 0, t "myMutex") i .r1 ?e' Pop $R0 StrCmp $R0 0 +3 MessageBox MB_OK|MB_ICONEXCLAMATION "The installer is already running." Abort
'myMutex' should be replaced by a unique value.
You can find more useful scripts at the NSIS Archive, the NSIS forum and NSIS development page.