事件付值问题

surname 2003-07-30 10:08:06

void __fastcall TForm1::FunctionDrawCell(TObject *Sender,
int ACol,int ARow,TRect &Rect,TGridRrawState State)
{
....
}

StringGrid1->OnDrawCell = FunctionDrawCell;

这样子为什么不行？

//-------------------------------------------
void __fastcall TForm1::FunctionSelectCell(TObject *Sender,
int ACol,int ARow,bool &SanSelect)
{
....
}
StringGrid1->OnSelectCell = FunctionSelectCell;
这样子又行，求解，谢谢

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surname 2003-07-30

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是这样给分吗

surname 2003-07-30

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汗颜... 真是太不好意思了^
行了，谢谢，太感谢了

kingfish 2003-07-30

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出错信息抄错了吧,少了const

加const
void __fastcall TForm1::FunctionDrawCell(TObject *Sender, int ACol,
int ARow, const TRect &Rect, TGridDrawState State)

surname 2003-07-30

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我在窗体的OnCreate事件写的

这样也不行:
StringGrid1->OnDrawCell = &FunctionDrawCell;

可是这句就行:
StringGrid1->OnSelectCell = FunctionSelectCell;

kingfish 2003-07-30

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StringGrid1->OnDrawCell = FunctionDrawCell;
你写在哪的?

比如这样
void __fastcall TForm1::BitBtn1Click(TObject *Sender)
{
StringGrid1->OnDrawCell = FunctionDrawCell;
}
//---------------------------------------------------------------------------

void __fastcall TForm1::FunctionDrawCell(TObject *Sender, int ACol,
int ARow, TRect &Rect, TGridDrawState State)
{
//
}

surname 2003-07-30

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不好意思^，打错
void __fastcall TForm1::FunctionDrawCell(TObject *Sender,
int ACol,int ARow,TRect &Rect,TGridDrawState State)

这样也不行呀
出错信息：
[C++ Error]From1cpp.cpp(1203):E2034 Cannot convert
'void (__fastcall) *(_closure )
(TObject *,int,int,TRect &,TGridDrawState))
(TObject *,int,int,TRect &,TGridDrawState)'
to
'void (__fastcall) *(_closure )
(TObject *,int,int,TRect &,TGridDrawState))
(TObject *,int,int,TRect &,TGridDrawState)'

kingfish 2003-07-30