Re: Unexplained WM_COMMAND messages in modeless dialog

On Jan 17, 10:14 am, Joseph M. Newcomer <newco...@flounder.com> wrote:


flict with some other


If there is, it isn't obvious. The control receiving the unexplained
messages has IDC 3671. Here is the relevant part of resource.h:

#define IDC_TicksX 3671
#define IDC_DebugOutput07 3672
#define IDC_TicksY 3672
#define IDC_DebugOutput08 3673
#define IDC_NoneX 3673
#define IDC_DebugOutput09 3674
#define IDC_GridX 3674
#define IDC_DebugOutput10 3675
#define IDC_GridTypeX 3675
#define IDC_DebugOutput11 3676
#define IDC_RADIO4 3676
#define IDC_GridTypeX2 3677
#define IDC_GridTypeY 3677

The debug output IDCs are in a different dialog. I also searched all
files in the project for "3671" and its hex equivalent. But to be sure
it isn't due to an ID conflict, I have manually renumbered the IDs in
the affect dialog to a unique range and rebuilt everything. I still
get the same unwanted messages.


sent them. Study it.

Here is the stack. The first entry is the message handler. message 273
(=0x111) is WM_COMMAND. 3679 is the IDC_TicksX (renumbered from the
above excerpt). The message is being sent during the modeless dialog
Create; that code is in CMainMenuToolbar. User has clicked within the
main menu (CWnd-derived), and that invokes the modeless Create. I
tried tracing through CreateDialogIndirect, but my MFC source code
apparently doesn't match, so I just get the disassembler.

Any assistance will be appreciated. I also tried to use the tool ATL/
MFC Tracer to see where the message was coming from, but this tool is
essentially undocumented.

CFitGridWindow::OnTicksX() Line 64
_AfxDispatchCmdMsg(CCmdTarget * pTarget=0x0830a290, unsigned int
nID=3679, int nCode=0, void (void)* pfn=0x00954089, void *
pExtra=0x00000000, unsigned int nSig=56, AFX_CMDHANDLERINFO *
pHandlerInfo=0x00000000) Line 82
CCmdTarget::OnCmdMsg(unsigned int nID=3679, int nCode=0, void *
pExtra=0x00000000, AFX_CMDHANDLERINFO * pHandlerInfo=0x00000000) Line
381 + 0x27 bytes
CDialog::OnCmdMsg(unsigned int nID=3679, int nCode=0, void *
pExtra=0x00000000, AFX_CMDHANDLERINFO * pHandlerInfo=0x00000000) Line
85 + 0x18 bytes
CWnd::OnCommand(unsigned int wParam=3679, long lParam=198698) Line
2300
CWnd::OnWndMsg(unsigned int message=273, unsigned int wParam=3679,
long lParam=198698, long * pResult=0x0038ed68) Line 1755 + 0x1e bytes
CWnd::WindowProc(unsigned int message=273, unsigned int wParam=3679,
long lParam=198698) Line 1741 + 0x20 bytes
AfxCallWndProc(CWnd * pWnd=0x0830a290, HWND__ * hWnd=0x00030826,
unsigned int nMsg=273, unsigned int wParam=3679, long lParam=198698)
Line 240 + 0x1c bytes
AfxWndProc(HWND__ * hWnd=0x00030826, unsigned int nMsg=273, unsigned
int wParam=3679, long lParam=198698) Line 389
7e418734
[Frames below may be incorrect and/or missing, no symbols loaded for
user32.dll]
....
CWnd::CreateDlgIndirect(const DLGTEMPLATE *
lpDialogTemplate=0x07bdb358, CWnd * pParentWnd=0x0830bb78, HINSTANCE__
* hInst=0x00400000) Line 307 + 0x2a bytes
CDialog::CreateIndirect(const DLGTEMPLATE *
lpDialogTemplate=0x07bdb358, CWnd * pParentWnd=0x0830bb78, void *
lpDialogInit=0x00000000, HINSTANCE__ * hInst=0x00400000) Line 211
CDialog::CreateIndirect(void * hDialogTemplate=0x07bdb358, CWnd *
pParentWnd=0x0830bb78, HINSTANCE__ * hInst=0x00400000) Line 188 + 0x16
bytes
CDialog::Create(const char * lpszTemplateName=0x000000f1, CWnd *
pParentWnd=0x0830bb78) Line 170 + 0x14 bytes
CDialog::Create(unsigned int nIDTemplate=241, CWnd *
pParentWnd=0x0830bb78) Line 601 + 0x18 bytes
CMainMenu::MainMenuToolbar() Line 95 + 0x21 bytes
CMainMenu::SelectionMade() Line 1881
CMainMenu::OnLButtonDown(unsigned int nFlags=1, CPoint point={...})
Line 1706 + 0x8 bytes
CWnd::OnWndMsg(unsigned int message=513, unsigned int wParam=1, long
lParam=20972204, long * pResult=0x0038fcbc) Line 2169
CWnd::WindowProc(unsigned int message=513, unsigned int wParam=1, long
lParam=20972204) Line 1741 + 0x20 bytes
AfxCallWndProc(CWnd * pWnd=0x0830bb78, HWND__ * hWnd=0x000507fa,
unsigned int nMsg=513, unsigned int wParam=1, long lParam=20972204)
Line 240 + 0x1c bytes
AfxWndProc(HWND__ * hWnd=0x000507fa, unsigned int nMsg=513, unsigned
int wParam=1, long lParam=20972204) Line 389
....
AfxInternalPumpMessage() Line 183C++