Secret Keyboard Input

10 posts

torparkSeptember 2, 2006 at 2:59 AM#

Secret Keyboard Input

I have a program that installs with non-visible UI. I am always debugging it because it runs from a USB device, and on different OSes.

I would like to be able to add a string or hotkey combo that would allow me to set a flag. This flag causes a message boxes to pop up at each different section.

I have everything set up except for the ability to silently capture this keyboard input. Anyone have any ideas? Let us say that I want to put it in while the splash screen is up, or during the first 5 seconds of the program, etc.

kichikSeptember 2, 2006 at 9:40 AM#

You can have it passed on as a command line switch. Use GetOptions to retrieve it from the command line.

torparkSeptember 2, 2006 at 3:20 PM#

Having some trouble with it.

After the Function .onInit but before Section "Main" I placed the example code:

Section "Test"
${GetOptions} "/S /T" "/T" $R0

IfErrors 0 +2
MessageBox MB_OK "Not found" IDOK +2
MessageBox MB_OK "Found"
SectionEnd

and at the end of the file I placed the code for the function GetOptions

Function GetOptions
!define GetOptions `!insertmacro GetOptionsCall`

!macro GetOptionsCall _PARAMETERS _OPTION _RESULT
Push `${_PARAMETERS}`
Push `${_OPTION}`
Call GetOptions
Pop ${_RESULT}
!macroend

Exch $1
Exch
Exch $0
Exch
...

...
Pop $2
Pop $1
Exch $0
FunctionEnd

I did this just to test the workings of it. Well it doesn't work. Compile error:

Section: "Test"
Invalid command: ${GetOptions}

kichikSeptember 2, 2006 at 3:32 PM#

That's not the correct usage. The top of that documentation section shows the correct usage. You must first include TextFunc.nsh, then !insertmacro GetOptions and only then you can use the function. There's no need to copy the function code to your script.

torparkSeptember 2, 2006 at 4:55 PM#

I think you mean !include "FileFunc.nsh"

Okay, I've got it running, but it is still confusing.

I just want it to check if i added "/debug" to the end.

torparkSeptember 2, 2006 at 4:57 PM#

I'm using:

${GetOptions} "/debug" "/" $R0
MessageBox MB_OK "r0= $R0"

yet

$R0 = null value, instead of "debug"

kichikSeptember 2, 2006 at 5:04 PM#

How is it not working? Does it simply ignore /debug? Is it the same code as above? If so, replace "/S /T" with $CMDLINE.

torparkSeptember 2, 2006 at 5:08 PM#

Section "Test"
ClearErrors
${GetOptions} $CMDLINE "/" $R0
MessageBox MB_OK "r0= $R0"
SectionEnd

at the command line i enter "program.exe /debug" and the popup box returns "r0="

torparkSeptember 2, 2006 at 5:12 PM#

Okay, I've changed the code to just use GetParameters instead, since there will only be one switch.

Section "Test"
ClearErrors
${GetParameters} $DEBUG
MessageBox MB_OK "debug= $DEBUG"
SectionEnd

kichikSeptember 2, 2006 at 5:14 PM#

${GetParameters} $1

DetailPrint $1

${GetOptions} $1 "/debug=" $0

DetailPrint $0

installer.exe /debug=yes