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MSN Messenger and NSIS (Now Playing)

2 posts

saivert#

MSN Messenger and NSIS (Now Playing)

I'm working on a NSIS script that uses the System plug-in in order to set the Now Playing item in MSN Messenger.

Here is the script, but something is wrong. CAn someone point it out for me?



Function Page1Leave

ReadIniStr $R0 "$PLUGINSDIR\msnmsgr-nowplaying.ini" "Settings" "State"

StrCmp $R0 0 next

Abort



next:

ReadIniStr $R1 "$PLUGINSDIR\msnmsgr-nowplaying.ini" "Field 1" "State"

	

StrCpy $TITLE $R1

StrCpy $ARTIST "Saivert"

StrCpy $ALBUM "The last one"



StrCpy $R4 'Music\01\0{0} - {1}\0 $ARTIST \0 $TITLE \0 $ALBUM \0WMContentID'

StrLen $R5 $R4

IntOp $R5 $R5 * 2

System::Alloc /NOUNLOAD 256

Pop $R6

System::Call /NOUNLOAD "*$R6(&w128 R4.)"

System::Call /NOUNLOAD "*(i 0x547, i R5, i R1) i .R2"

FindWindow $R3 "MsnMsgrUIManager"

SendMessage $R3 ${WM_COPYDATA} $HWNDPARENT $R2

System::Free /NOUNLOAD $R2

System::Free $R6



; Write to IO ini file

WriteIniStr "$PLUGINSDIR\msnmsgr-nowplaying.ini" "Field 3" "Text" $R4

SendMessage $HWNDPARENT 0x408 0 0 ; Reload page

Abort



FunctionEnd
The code is a fragment of the entire script. I'm using an InstallOptions page to present a text field where one can enter a title, the ARTIST and ALBUM is variables declared with Var and set to static values using StrCpy. When user clicks the next button, the function above gets called, and it just executes the commands past next label and then keeps the page by using an undocumented message to reload the page. This is so I can write to the IO ini file and have the new data reloaded by InstallOptions.
saivert#
I guess none of you are interested in this. It didn't take long before this post ended up on page three. So here is an update anyway:

I have rewritten the code to use wsprintfW as in ShaneH's code over at MsnFanatics.com, but it's still not working.

I saw some VB code there that used a structure to hold the title, artist and album info (pluss WMCOntentID) but later code just uses a string with literal "\0" sequences in it.

The code so far:


Function Page1Leave

  ReadIniStr $R0 "$PLUGINSDIR\msnmsgr-nowplaying.ini" "Settings" "State"

  StrCmp $R0 0 next

  StrCmp $R0 5 clear

  

  clear:

    FindWindow $R0 "#32770" "" $HWNDPARENT 0

    GetDlgItem $R0 $R0 1203

    SendMessage $R0 0xC 0 "STR:"

    Abort

  next:

ReadIniStr $R0 "$PLUGINSDIR\msnmsgr-nowplaying.ini" "Field 4" "State"



System::Alloc 1024

Pop $R1

; Set up string to send the MSN Messenger

; A backslash at the end of line means span next line.

; I needed to do this in order to keep the layout on

; the forum neat.

System::Call 'user32::wsprintfW(i R1, w s, i 1, w "{0} - {1}", w R0,\

 w "Artist", w "Album", w "WMContentID") i..?c'\

 "\\0Music\\0%d\\0%s\\0%s\\0%s\\0%s\\0%s\\0"



System::Call "kernel32::lstrlenW(i R1) i.R2"

IntOp $R2 $R2 * 2



System::Call "*(i 0x547, i R2, i R1) i .R3"

StrCpy $R4 0

nextwnd:

  FindWindow $R5 "MsnMsgrUIManager" "" 0 $R4

  StrCpy $R4 $R5

  SendMessage $R5 ${WM_COPYDATA} $HWNDPARENT $R3 /TIMEOUT=1000

  StrCmp $R5 0 +1 nextwnd

System::Free $R3



; get the complete string

System::Call "*$R1(&w1024 .R6)"

System::Free $R1



; Write to IO ini file

;WriteIniStr "$PLUGINSDIR\msnmsgr-nowplaying.ini" "Field 7" "State" $R6

;SendMessage $HWNDPARENT 0x408 0 0 ; Reload page

; we just set the text

FindWindow $R0 "#32770" "" $HWNDPARENT 0

GetDlgItem $R0 $R0 1206

SendMessage $R0 0xC 0 "STR:$R6"





Abort

FunctionEnd
You can download the latest 7z archive with all the files here:
msnmsgr-nowplaying.7z (34kB)