Migration issues vc6 -> vc7 I have message handlers, modified to return values, that wont compile

[Zardoz]

Hi,

I'm trying to find a workaround to this problem

ON_BN_CLICKED(IDC_CANCEL, OnCancelOperation)

BOOL CCurrenciesDialog::OnCancelOperation()

Somone's obviously modified this handler to return a BOOL and the
compile in VC7 fails with :

error C2440: 'static_cast' : cannot convert from 'BOOL (__thiscall
CCurrenciesDialog::* )(void)' to 'AFX_PMSG'
I'm trying to find a workaround - one would be to write a new handler
and call the modified function. /small/ amount of work there I suppose

ON_BN_CLICKED(IDC_CANCEL,(void) OnCancelOperation) compiled but threw
an exception when called.

Cheers

[Jeff Partch [MVP]]

"Zardoz" <[e-mail]> wrote in message
news:qo********************************@4ax.com...

Hi,

I'm trying to find a workaround to this problem

ON_BN_CLICKED(IDC_CANCEL, OnCancelOperation)

BOOL CCurrenciesDialog::OnCancelOperation()

Somone's obviously modified this handler to return a BOOL and the
compile in VC7 fails with :

error C2440: 'static_cast' : cannot convert from 'BOOL (__thiscall
CCurrenciesDialog::* )(void)' to 'AFX_PMSG'

Inasmuch as the proper signature of an ON_BN_CLICKED handler has a return
type of VOID, what is the reasoning behind declaring it improperly?
--
Jeff Partch [VC++ MVP]

[Zardoz]

>

Inasmuch as the proper signature of an ON_BN_CLICKED handler has a return
type of VOID, what is the reasoning behind declaring it improperly?

I suspect we're calling the same function from elsewhere in order to
test how the dialog closes. I can see easy workarounds...