SendMessage to click button of other application

[helge]

I am quite new to NSIS and not so familiar with windows messages. I like to use NSIS as a wrappper for another installation application to automize some steps. So I like to let the NSIS installer click some buttons in the other windows. From searching the forum I got the idea to use SendMessage for that. But I have no idea which message to use. There are quite a few messages in the winMessages.nsh like WM_MBUTTONDOWN or WM_NCLBUTTONDOWN which look like they could work. Has anyone some experience with that?

[Yathosho]

this probably is of help

[helge]

Thanks for the link. Now I have another question: I adapted the code to my needs (see below) and started testing it a little bit but I cannot get the GetWindowModuleFileName function work properly. I might not need this function in this special case but I like to know how to work with it.

Although $0 gives me the window handle to my password (Kennwort) window $2 just gives me name and path of the runnning NSIS installer. I cannot see what I did wrong but I certainly did.

Code:

Section ""
StrCpy $3 0

wait:
IntOp $3 $3 + 1
StrCmp $3 500 error
Sleep 100
FindWindow $0 "om-popup" "Kennwort"
StrCmp $0 0 wait
strcpy $2 "test"
MessageBox MB_OK "Handle: $0"
MessageBox MB_OK "vor GetWin ... : $2"
System::Call 'user32::GetWindowModuleFileName(i r0, t .r2, i ${NSIS_MAX_STRLEN})'
MessageBox MB_OK "nach GetW...: $2"

${GetFileName} '$2' $2
MessageBox MB_OK "Datei :$2"
goto Erfolg

error:
MessageBox MB_OK "nicht gefunden"
quit

Erfolg:
SectionEnd