I had this code previously:
void App::FillFontBox(HWND PrefsBox)
{
[snipped]
EnumFontFamilies(hdc,(LPCTSTR)NULL,(FONTENUMPROC)E numFontNamesProc,(long)this);
[snipped]
sort(FontNames.begin(), FontNames.end(), CaselessCmp);
[snipped]
return;
}
int CALLBACK App::EnumFontNamesProc(ENUMLOGFONT FAR *lpelf,
NEWTEXTMETRICFAR*lpntm,intFontType, LPARAM lParam)
bool App::CaselessCmp(const string& s1, const string& s2)
It compiled fine. (Apologies for the window code, but I'm assuming this
is a C++ problem, rather than an OS specific one.)
I moved much of the code from FillFontBox, and the CALLBACK (__stdcall)
and predicate functions into an existing class:
vector<stringClass_Font::GetTypeFaces()
{
[snipped]
EnumFontFamilies(hdc,(LPCTSTR)
NULL,(FONTENUMPROC)EnumFontNamesProc, (long)NULL);
[snipped]
sort(TypefaceNames.begin(), TypefaceNames.end(), CaselessCmp);
return TypefaceNames;
}
int CALLBACK Class_Font::EnumFontNamesProc(ENUMLOGFONT FAR *lpelf,
NEWTEXTMETRIC FAR *lpntm, int FontType, LPARAM lParam)
bool Class_Font::CaselessCmp(const string& s1, const string& s2)
Now the compiler wants me to use "&Class_Font::CaselessCmp" and when
passing EnumFontNamesProc the compiler gives me "error C2440: 'type
cast' : cannot convert from 'overloaded-function' to 'FONTENUMPROC'"
There's only one EnumFontNamesProc.
Anyone know what's going on here?
Thank you
--
Derek 1 1811
* DerekBaker:
* DerekBaker:
>I had this code previously:
void App::FillFontBox(HWND PrefsBox) { [snipped]
EnumFontFamilies(hdc,(LPCTSTR)NULL,(FONTENUMPROC) EnumFontNamesProc,(long)this); [snipped] sort(FontNames.begin(), FontNames.end(), CaselessCmp);
[snipped]
return; }
int CALLBACK App::EnumFontNamesProc(ENUMLOGFONT FAR *lpelf, NEWTEXTMETRICFAR*lpntm,intFontType, LPARAM lParam)
bool App::CaselessCmp(const string& s1, const string& s2)
It compiled fine. (Apologies for the window code, but I'm assuming this is a C++ problem, rather than an OS specific one.)
I moved much of the code from FillFontBox, and the CALLBACK (__stdcall) and predicate functions into an existing class:
vector<stringClass_Font::GetTypeFaces() { [snipped] EnumFontFamilies(hdc,(LPCTSTR) NULL,(FONTENUMPROC)EnumFontNamesProc, (long)NULL); [snipped] sort(TypefaceNames.begin(), TypefaceNames.end(), CaselessCmp);
return TypefaceNames; }
int CALLBACK Class_Font::EnumFontNamesProc(ENUMLOGFONT FAR *lpelf, NEWTEXTMETRIC FAR *lpntm, int FontType, LPARAM lParam)
bool Class_Font::CaselessCmp(const string& s1, const string& s2)
Now the compiler wants me to use "&Class_Font::CaselessCmp" and when passing EnumFontNamesProc the compiler gives me "error C2440: 'type cast' : cannot convert from 'overloaded-function' to 'FONTENUMPROC'"
There's only one EnumFontNamesProc.
Anyone know what's going on here?
Thank you
Well it wouldn't take EnumFontNamesProc, because I didn't declare it
static.
Now it won't take the predicate!
sort(TypefaceNames.begin(), TypefaceNames.end(), &Class_Font::CaselessCmp);
won't call
bool Class_Font::CaselessCmp(const string& s1, const string& s2)
{[snipped]}
even though the compiler suggests it.
Output [apologies for the length]:
[snipped]
Works now that CasslessCmp is static. That'll teach not to copy and paste, especially when I've got
a headache!.
--
Derek This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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