Using Spy++ I can see these messages to my WPF window/wrapper when NPP closes down…
<000015> 001A0C64 S WM_GETTEXT cchTextMax:512 lpszText:0012D7A8
<000016> 001A0C64 R WM_GETTEXT cchCopied:5 lpszText:0012E910 ("A")
<000017> 001A0C64 S message:0x0090 [Unknown] wParam:00000000 lParam:00000000
<000018> 001A0C64 R message:0x0090 [Unknown] lResult:00000000
<000019> 001A0C64 S WM_WINDOWPOSCHANGING lpwp:0012FBFC
<000020> 001A0C64 R WM_WINDOWPOSCHANGING
<000021> 001A0C64 S WM_WINDOWPOSCHANGED lpwp:0012FBFC
<000022> 001A0C64 R WM_WINDOWPOSCHANGED
<000023> 001A0C64 S message:0x0272 [Unknown] wParam:00000000 lParam:00000000
<000024> 001A0C64 R message:0x0272 [Unknown] lResult:00000000
<000025> 001A0C64 S WM_DESTROY
<000026> 001A0C64 R WM_DESTROY
<000027> 001A0C64 S WM_NCDESTROY
<000028> 001A0C64 R WM_NCDESTROY
Does anyone know what 0x0090 and 0x0272 messages are?
I hooked the messages in my WPF code which gave this:
MSG 90 (0, 0) = ???
MSG 46 (0, 1244516) = WM_WINDOWPOSCHANGING
MSG 47 (0, 1244516) = WM_WINDOWPOSCHANGED
MSG 272 (0, 0) = ???
The thread 0x2920 has exited with code 0 (0x0).
MSG 2 (0, 0) = WM_DESTROY
MSG 82 (0, 0) = WM_NCDESTROY
Exception thrown at 0x73F008F2 (KernelBase.dll) in notepad++.exe: 0x0000071A: The remote procedure call was canceled, or if a call time-out was specified, the call timed out.
The thread 0x1b9c has exited with code 0 (0x0).
Is it interesting that a thread exits after Msg 0x272 ? Perhaps NPP expects a non-zero reply to this message?