IDE crashing after running a program with subclassing

[Elroy]

Hi Ted,

What's most obvious to me is that you've got an extra comma in your call to RemoveWindowSubclass. I'm not sure you're getting it removed.

RemoveWindowSubclass, Me.hwnd, AddressOf SubClassProc, ID

That actually makes me wonder how you've got RemoveWindowSubclass declared. I wouldn't mind seeing that too. Here are mine:

Private Declare Function SetWindowSubclass Lib "comctl32.dll" Alias "#410" (ByVal hWnd As Long, ByVal pfnSubclass As Long, ByVal uIdSubclass As Long, Optional ByVal dwRefData As Long) As Long
Private Declare Function GetWindowSubclass Lib "comctl32.dll" Alias "#411" (ByVal hWnd As Long, ByVal pfnSubclass As Long, ByVal uIdSubclass As Long, pdwRefData As Long) As Long
Private Declare Function RemoveWindowSubclass Lib "comctl32.dll" Alias "#412" (ByVal hWnd As Long, ByVal pfnSubclass As Long, ByVal uIdSubclass As Long) As Long
Private Declare Function DefSubclassProc Lib "comctl32.dll" Alias "#413" (ByVal hWnd As Long, ByVal uMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long

Good Luck,
Elroy

[TedH]

Private Declare Function DefSubclassProc Lib "comctl32.dll" (ByVal hwnd As Long, ByVal uMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Private Declare Function SetWindowSubclass Lib "comctl32.dll" (ByVal hwnd As Long, ByVal pfnSubclass As Long, ByVal uIdSubclass As Long, ByVal dwRefData As Long) As Long
Private Declare Function RemoveWindowSubclass Lib "comctl32.dll" (ByVal hwnd As Long, ByVal pfnSubclass As Long, ByVal uIdSubclass As Long) As Long

GetWindowSubclass not used.

However, the subclassing all works fine with the program running from an EXE or within the IDE. Whilst running, various windows are opened and subclassed, and later de-subclassed and closed with no apparent problems.
It's only when I close the program (when running it in the IDE) that the IDE crashes.