sjanarth
8th March 2005 14:05 UTC

Modern UI Abort
Hi,

I am trying to call abort from one of my callbacks as shown below :

!define MUI_CUSTOMFUNCTION_GUIINIT .ShowSplash
!define MUI_PAGE_CUSTOMFUNCTION_PRE CheckPrevInstall
!insertmacro MUI_PAGE_WELCOME

Function CheckPrevInstall
Push $0
ReadRegStr $0 ${REGROOT} ${REGKEY} ""
StrCmp $0 "" CheckMore
PromptUnInstall:
MessageBox MB_YESNO|MB_ICONQUESTION "A previous version of SWFAudio was found.\
$\n$\nIt is recommended that you uninstall it first.$\n$\nDo you want to do that now?" IDNO NoUnInstall IDYES UnInstall
UnInstall:
ExecWait '$0\Uninstall.exe $R0'
MessageBox MB_OK|MB_ICO

sjanarth
8th March 2005 14:08 UTC

[The previous one didn't get posted properly, sending again]

Hi,

I am trying to call abort from one of my callbacks as shown below :

!define MUI_CUSTOMFUNCTION_GUIINIT .ShowSplash
!define MUI_PAGE_CUSTOMFUNCTION_PRE CheckPrevInstall
!insertmacro MUI_PAGE_WELCOME

Function CheckPrevInstall
Push $0
ReadRegStr $0 ${REGROOT} ${REGKEY} ""
StrCmp $0 "" CheckMore
PromptUnInstall:
MessageBox MB_YESNO|MB_ICONQUESTION "A previous version of SWFAudio was found.\
$\n$\nIt is recommended that you uninstall it first.$\n$\nDo you want to do that now?" IDNO NoUnInstall IDYES UnInstall
UnInstall:
ExecWait '$0\Uninstall.exe $R0'
MessageBox MB_OK|MB_ICONINFORMATION "Click OK to continue installing ${MUI_PRODUCT}."
Goto ExitFunction
NoUnInstall:
Abort
CheckMore:
ReadRegStr $0 ${REGROOT} ${ALTREGKEY} ""
StrCmp $0 "" ExitFunction
Goto PromptUnInstall
ExitFunction:
Pop $0
FunctionEnd

Basically am trying to check if a previous version of my app
is installed and if yes, prompt the user to uninstall it first.

If the user chooses not to Uninstall, i need to abort the main installation.

Please help me with this,.

Thanks,
Sathish.

sjanarth
8th March 2005 14:09 UTC

Clicking "No" on the "Confirm UnInstall" message box proceeds with the main install and doesn't abort.

Afrow UK
8th March 2005 14:41 UTC

Your Function needs cleaning up... :)

Function CheckPrevInstall
Push $0

 ReadRegStr $0 ${REGROOT} ${REGKEY} ""
  StrCmp $0 "" 0
 ReadRegStr $0 ${REGROOT} ${ALTREGKEY} ""
  StrCmp $0 "" ExitFunction

 PromptUnInstall:

  MessageBox MB_YESNO|MB_ICONQUESTION "A previous version of SWFAudio was found.\
  $\n$\nIt is recommended that you uninstall it first.$\n$\nDo you want to do that now?" IDNO ExitFunction
  ExecWait '$0\Uninstall.exe $R0'
 
  MessageBox MB_OK|MB_ICONINFORMATION "Click OK to continue installing ${MUI_PRODUCT}."

ExitFunction:
Pop $0
FunctionEnd

sjanarth
9th March 2005 05:24 UTC

Thanks for the reply.

But am afraid that doesn't abort the installation!

My original problem still persists even if i use the code modified as below:

Function CheckPrevInstall2
Push $0
ReadRegStr $0 ${REGROOT} ${REGKEY} ""
StrCmp $0 "" 0 PromptUnInstall
ReadRegStr $0 ${REGROOT} ${ALTREGKEY} ""
StrCmp $0 "" ExitFunction
PromptUnInstall:
MessageBox MB_YESNO|MB_ICONQUESTION "A previous version of SWFAudio was found.\
$\n$\nIt is recommended that you uninstall it first.$\n$\nDo you want to do that now?" IDNO DoAbort
ExecWait '$0\Uninstall.exe $R0'
MessageBox MB_OK|MB_ICONINFORMATION "Click OK to continue installing ${MUI_PRODUCT}."
Goto ExitFunction
DoAbort:
Abort
ExitFunction:
Pop $0
FunctionEnd

Please help.

Afrow UK
9th March 2005 10:59 UTC

Oh I thought you wanted it to run the uninstaller and wait for it to finish, and then continue with installation?
That's what my code does.

If you want it to run the uninstaller and then quit, use Exec not ExecWait, and Quit not Abort.

-Stu