ON_MESSAGE change from VC++ 6.0 to VC++ .net 2003 ?
in [Visual C]
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From: Jim Langston on 3 Dec 2005 07:39 I'm trying to compile a VC++ 6.0 project in my VC++ .net 2003 compiler. I opened the project and told it to convert it when it asked and did a compile. But I get 2 errors both on the same type of line. The errors are: c:\temp\ZipDemo\TextProgressCtrl.cpp(145) : error C2440: 'static_cast' : cannot convert from 'LRESULT (__thiscall CTextProgressCtrl::* )(UINT,LPCTSTR)' to 'LRESULT (__thiscall CWnd::* )(WPARAM,LPARAM)' None of the functions with this name in scope match the target type c:\temp\ZipDemo\TextProgressCtrl.cpp(146) : error C2440: 'static_cast' : cannot convert from 'LRESULT (__thiscall CTextProgressCtrl::* )(UINT,LPTSTR)' to 'LRESULT (__thiscall CWnd::* )(WPARAM,LPARAM)' None of the functions with this name in scope match the target type The errors occur in this code: BEGIN_MESSAGE_MAP(CTextProgressCtrl, CProgressCtrl) //{{AFX_MSG_MAP(CTextProgressCtrl) ON_WM_ERASEBKGND() ON_WM_PAINT() ON_WM_SIZE() //}}AFX_MSG_MAP ON_MESSAGE(WM_SETTEXT, OnSetText) ON_MESSAGE(WM_GETTEXT, OnGetText) END_MESSAGE_MAP() on the ON_MESSAGE lines. How do I fix this? Thanks.
From: Jeff Partch [MVP] on 3 Dec 2005 07:54 "Jim Langston" <tazmaster(a)rocketmail.com> wrote in message news:3mgkf.1220$0u6.1048(a)fe06.lga... > I'm trying to compile a VC++ 6.0 project in my VC++ .net 2003 compiler. I > opened the project and told it to convert it when it asked and did a > compile. But I get 2 errors both on the same type of line. The errors are: > > c:\temp\ZipDemo\TextProgressCtrl.cpp(145) : error C2440: 'static_cast' : > cannot convert from 'LRESULT (__thiscall > CTextProgressCtrl::* )(UINT,LPCTSTR)' to 'LRESULT (__thiscall > CWnd::* )(WPARAM,LPARAM)' > > How do I fix this? Thanks. Make sure your ON_MESSAGE handlers are declared properly: LRESULT CWndClass::MemberFxn(WPARAM, LPARAM) -- Jeff Partch [VC++ MVP]
From: Jim Langston on 3 Dec 2005 08:47
"Jeff Partch [MVP]" <jeffp(a)mvps.org> wrote in message news:uLBwAjA%23FHA.2176(a)TK2MSFTNGP09.phx.gbl... > "Jim Langston" <tazmaster(a)rocketmail.com> wrote in message > news:3mgkf.1220$0u6.1048(a)fe06.lga... >> I'm trying to compile a VC++ 6.0 project in my VC++ .net 2003 compiler. >> I >> opened the project and told it to convert it when it asked and did a >> compile. But I get 2 errors both on the same type of line. The errors > are: >> >> c:\temp\ZipDemo\TextProgressCtrl.cpp(145) : error C2440: 'static_cast' : >> cannot convert from 'LRESULT (__thiscall >> CTextProgressCtrl::* )(UINT,LPCTSTR)' to 'LRESULT (__thiscall >> CWnd::* )(WPARAM,LPARAM)' >> >> How do I fix this? Thanks. > > Make sure your ON_MESSAGE handlers are declared properly: > > LRESULT CWndClass::MemberFxn(WPARAM, LPARAM) Thanks, searching for the actual functions that were being passed in, I changed their parms to WPARAM and LPARAM and did casting in the fuctions where needed. Program compiles and seems to work. Thanks. |