C++Builder點擊變色!!急需請高手解答

luckbox520

請高手大大們幫忙解答

我的問題是：

我在BCB中做了一個表格

這個大表格內每格都有數據

如何當我滑鼠點擊(左鍵單擊)任一格時

該格字體變為紅色

點別格後又還原成原本顏色(黑色)

試看看!!應該OK~

1. //---------------------------------------------------------------------------
   
2. 
   
3. #ifndef Unit1H
   
4. #define Unit1H
   
5. //---------------------------------------------------------------------------
   
6. #include <Classes.hpp>
   
7. #include <Controls.hpp>
   
8. #include <StdCtrls.hpp>
   
9. #include <Forms.hpp>
   
10. #include <Grids.hpp>
    
11. //---------------------------------------------------------------------------
    
12. class TForm1 : public TForm
    
13. {
    
14. __published:        // IDE-managed Components
    
15.         TStringGrid *StringGrid1;
    
16.         void __fastcall StringGrid1MouseDown(TObject *Sender,
    
17.           TMouseButton Button, TShiftState Shift, int X, int Y);
    
18.         void __fastcall StringGrid1DrawCell(TObject *Sender, int ACol,
    
19.           int ARow, TRect &Rect, TGridDrawState State);
    
20. private:        // User declarations
    
21. public:                // User declarations
    
22.         __fastcall TForm1(TComponent* Owner);
    
23. 
    
24.         void __fastcall SetSGPos(int Col,int Row);
    
25.         void __fastcall GetSGPos(int *Col,int *Row);
    
26.         int m_ACol ;
    
27.         int m_ARow ;
    
28. };
    
29. //---------------------------------------------------------------------------
    
30. extern PACKAGE TForm1 *Form1;
    
31. //---------------------------------------------------------------------------
    
32. #endif
    
33. 
    
34. 
    
35. //---------------------------------------------------------------------------
    
36. 
    
37. #include <vcl.h>
    
38. #pragma hdrstop
    
39. 
    
40. #include "Unit1.h"
    
41. //---------------------------------------------------------------------------
    
42. #pragma package(smart_init)
    
43. #pragma resource "*.dfm"
    
44. TForm1 *Form1;
    
45. //---------------------------------------------------------------------------
    
46. __fastcall TForm1::TForm1(TComponent* Owner)
    
47.         : TForm(Owner)
    
48. {
    
49.    for(int x=1;x<StringGrid1->ColCount;x++){
    
50.       for(int y=1;y<StringGrid1->RowCount;y++){
    
51.          StringGrid1->Cells[x][y] = "TEST" ;
    
52.       }
    
53.    }
    
54. }
    
55. //---------------------------------------------------------------------------
    
56. void __fastcall TForm1::SetSGPos(int Col,int Row)
    
57. {
    
58.    m_ACol = Col ;
    
59.    m_ARow = Row ;
    
60. }
    
61. //---------------------------------------------------------------------------
    
62. void __fastcall TForm1::GetSGPos(int *Col,int *Row)
    
63. {
    
64.    *Col = m_ACol  ;
    
65.    *Row = m_ARow  ;
    
66. }
    
67. 
    
68. //---------------------------------------------------------------------------
    
69. 
    
70. void __fastcall TForm1::StringGrid1MouseDown(TObject *Sender,
    
71.       TMouseButton Button, TShiftState Shift, int X, int Y)
    
72. {
    
73.    if( Button == mbLeft ){
    
74.       SetSGPos(StringGrid1->Col,StringGrid1->Row);
    
75.       StringGrid1->Repaint() ;
    
76.    }
    
77. }
    
78. //--------------------------------------------------------------------------
    
79. void __fastcall TForm1::StringGrid1DrawCell(TObject *Sender, int ACol,
    
80.       int ARow, TRect &Rect, TGridDrawState State)
    
81. {
    
82.     int Col = 0 , Row = 0 ;
    
83. 
    
84.     GetSGPos( &Col , &Row ) ;
    
85. 
    
86.     if (State.Contains(gdFixed)) return;
    
87. 
    
88.     if (ARow==Row && ACol == Col){
    
89.        StringGrid1->Canvas->Font->Color=clRed ;
    
90.     }
    
91.     else{
    
92.        StringGrid1->Canvas->Font->Color=clBlack ;
    
93.     }
    
94. 
    
95.     StringGrid1->Canvas->TextRect (Rect, Rect.Left, Rect.Top,StringGrid1->Cells[ACol][ARow]);
    
96. 
    
97. }
    
98. //---------------------------------------------------------------------------

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