Question about Message Boxes

TehMuffinMan
26th March 2011 05:39 UTC

Question about Message Boxes
Howdy folks! Brand new here... :)

I am wondering if there is an alternative to being forced to use gotos and labels as the result of buttons in a message box. Instead of using labels I would like to set some flags or something similar. I have been a developer for many years and the thought of using gotos makes me cringe a little bit haha! I am using a MB_YESNOCANCEL message box and once the flags are set I would do some logic on them via LogicLib.nsh.

Thanks for any info!

pengyou
26th March 2011 11:36 UTC

Try reading the manual and the example scripts supplied with NSIS.

Here is a simple example to get you started:

!include "LogicLib.nsh"


>Name "Demo"

>OutFile demo.exe


RequestExecutionLevel "user"


>ShowInstDetails show


Section default


   ${If} ${Cmd} `MessageBox MB_YESNO|MB_ICONQUESTION 'Display MAKENSIS help?' IDYES`

      DetailPrint "MAKENSIS Help:"

      DetailPrint ""

      nsExec::ExecToLog '"${NSISDIR}\makensis.exe" /CMDHELP'

      DetailPrint ""

  ${Else}

     DetailPrint ""

     DetailPrint "User did not request the help listing"

     DetailPrint ""

  ${EndIf}


>SectionEnd 

>

TehMuffinMan
26th March 2011 17:03 UTC

Thanks for the info! My apologies, I did look through the manual (but not example scripts) and every mention I could find of MessageBox used labels. I must have missed the part where they work with logical flow statements. I had also googled for hours trying to find this information too so I hope you don't think I was lazy haha :)

TehMuffinMan
26th March 2011 17:06 UTC

I also need this to work with YESNOCANCEL (so 3 buttons), off to searching the manual again and examples I go! Thanks again for pointing me in the right direction.

TehMuffinMan
26th March 2011 17:25 UTC

How about something like this?


"LogicLib.nsh"


>Name "Demo"

>OutFile demo.exe


RequestExecutionLevel "user"


>ShowInstDetails show


Section default


   ${If} ${Cmd} `MessageBox MB_YESNOCANCEL|MB_ICONQUESTION 'Display MAKENSIS help?' IDYES`

      DetailPrint "MAKENSIS Help:"

      DetailPrint ""

      nsExec::ExecToLog '"${NSISDIR}\makensis.exe" /CMDHELP'

      DetailPrint ""

 ${ElseIf ${Cmd} `IDNO`}

     DetailPrint ""

     DetailPrint "User did not request the help listing"

     DetailPrint ""

  ${Else}

      {DOSOMETHING ELSE HERE}

  ${EndIf}


>SectionEnd 

>

pengyou
26th March 2011 17:27 UTC

I find "Windows Grep" useful for searching the example files supplied with NSIS.

TehMuffinMan
26th March 2011 17:41 UTC

Originally posted by pengyou
I find "Windows Grep" useful for searching the example files supplied with NSIS.

That is exactly what I already did. I looked through all instances of "messagebox" and the only ones I found using LogicLib only had 2 choices like your original example.

I also grepped for instances of ${If} and ${Cmd} together to see if they were possibly used with another command other than messagebox, no dice.

I am not lazy, I know how to search for stuff. This isn't my first rodeo =( I may have seen what I needed and not known it was what I needed.

Sorry for the troubles :(

pengyou
26th March 2011 17:45 UTC

${ElseIf ${Cmd} `IDNO`}

will not compile for several reasons.

Have you bothered to look at the LogicLib.nsi example script? It shows that LogicLib uses ${ElseIf} for the "if ... elseif ... else ... endif" structure.

The ${If} ${Cmd} structure conditionally executes an inline statement, depending on a true value of the provided NSIS function. Your suggestion uses `IDNO` which is not a function.

TehMuffinMan
26th March 2011 18:15 UTC

Originally posted by pengyou
will not compile for several reasons.

Have you bothered to look at the LogicLib.nsi example script? It shows that LogicLib uses ${ElseIf} for the "if ... elseif ... else ... endif" structure.

The ${If} ${Cmd} structure conditionally executes an inline statement, depending on a true value of the provided NSIS function. Your suggestion uses `IDNO` which is not a function.

Yes I have "bothered" to. I hope by now I would have proved my self knowledgeable and competent... I am not someone looking for an easy answer. I had already spent a day looking for a solution to this. I just explained how I even used wingrep to search through all the example file.

My question was never about how to setup the logic structure, I know how to use ${ElseIf} just fine (in general that is). My question is how to use that logic structure specifically with MessageBox YESNOCANCEL.

There are only 2 examples in LogicLib.nsi that reference MessageBox.


  ; ifcmd..||..| and if/unless cmd

  StrCpy $R2 ""

 ${IfCmd} MessageBox MB_YESNO "Please click Yes" IDYES ${||} StrCpy $R2 $R2A ${|}

  ${Unless} ${Cmd} `MessageBox MB_YESNO|MB_DEFBUTTON2 "Please click No" IDYES`

    StrCpy $R2 $R2B

 ${EndUnless}

  ${If}$R2 == "AB"

   DetailPrint "PASSED IfCmd/If Cmd test"

  ${Else}

   DetailPrint "FAILED IfCmd/If Cmd test"

  ${EndIf}

Function ComponentsLeave

 ; Section flags tests (requires sections.nsh be included)

  ${Unless} ${SectionIsSelected} ${TESTS}

   MessageBox MB_OK "Please select the component"

    Abort

  ${EndIf}

>FunctionEnd 

>

Neither of the above reference using an ${ElseIf}

The only example in that script that references ${ElseIf} is the below, and it is just using strings, nothing to do with commands like MessageBox.


  ; if..elseif..else..endif

  StrCpy $R1 A

  StrCpy $R2 ""

 ${If} $R1 == A

    StrCpy $R2 $R2A

 ${ElseIf} $R1 == B

    StrCpy $R2 $R2B

 ${ElseUnless} $R1 != C

    StrCpy $R2 $R2C

  ${Else}

    StrCpy $R2 $R2D

  ${EndIf}

  ${If}$R1 == D

    StrCpy $R2 $R2D

 ${ElseIf} $R1 == A

    StrCpy $R2 $R2A

 ${ElseUnless} $R1 != B

    StrCpy $R2 $R2B

  ${Else}

    StrCpy $R2 $R2C

  ${EndIf}

  ${If}$R1 == C

    StrCpy $R2 $R2C

 ${ElseIf} $R1 == D

    StrCpy $R2 $R2D

 ${ElseUnless} $R1 != A

    StrCpy $R2 $R2A

  ${Else}

    StrCpy $R2 $R2B

  ${EndIf}

  ${If}$R1 == B

    StrCpy $R2 $R2B

 ${ElseIf} $R1 == C

    StrCpy $R2 $R2C

 ${ElseUnless} $R1 != D

    StrCpy $R2 $R2D

  ${Else}

    StrCpy $R2 $R2A

  ${EndIf}

  ${If}$R2 == "$R1$R1$R1$R1"

   DetailPrint "PASSED If..ElseIf..Else..EndIf test"

  ${Else}

   DetailPrint "FAILED If..ElseIf..Else..EndIf test"

  ${EndIf}

What am I missing? Do I have an old example file or something? I promise I am not an idiot! LOL

TehMuffinMan
26th March 2011 18:17 UTC

Originally posted by pengyou
will not compile for several reasons.

Have you bothered to look at the LogicLib.nsi example script? It shows that LogicLib uses ${ElseIf} for the "if ... elseif ... else ... endif" structure.

The ${If} ${Cmd} structure conditionally executes an inline statement, depending on a true value of the provided NSIS function. Your suggestion uses `IDNO` which is not a function.

Also FYI I typoed that, what I had meant was

${ElseIf} ${Cmd} `IDNO` (which still won't work obviously)

Please excuse the slip of the keyboard, I know how to use ${ElseIf}, this isn't my first NSIS script :)

TehMuffinMan
26th March 2011 19:41 UTC

For simplicity, this is exactly what I am trying to figure out... (I can ramble some)

Reference the [WHAT GOES HERE]

   ${If} ${Cmd} `MessageBox MB_YESNOCANCEL|MB_ICONEXCLAMATION "PRORAM X is already installed. Click YES to remove the installed version found in C:\Program Files(x86). Click NO to skip uninstall and choose a different install location (not recommended) or CANCEL to terminate the installer." IDYES`

       MessageBox MB_OK "Yes was clicked"

   ${ElseIf} {WHAT GOES HERE??}

       MessageBox MB_OK "No was clicked"

    ${Else}    

       MessageBox MB_OK "Cancel was clicked"

    ${EndIf}

Afrow UK
26th March 2011 22:34 UTC

You have to use labels I'm afraid, unless you use nsL (see sticky topic).

Stu