Coloring cells in C++ builder, StringGrid
I tried to do this:
void __fastcall TTetrisGame::DrawGrid1DrawCell(TObject *Sender, int ACol, int ARow,
TRect &Rect, TGridDrawState State)
{
this->Canvas->Brush->Color=clBlue;
this->Canvas->FillRect(Rect);
}
But it is a really weird result. I put my StringGrid in the middle of the window but I can't see any Blue color. Instead, it is transparent. I see a colored blue Grid in the right top corner of my window.
What am I doing wrong?
How can I color each cell individually?
c++ c++builder stringgrid
edited Nov 21 '18 at 22:35
Remy Lebeau
332k18251444
asked Nov 21 '18 at 20:04
g0dafkg0dafk
87
add a comment |
I tried to do this:
void __fastcall TTetrisGame::DrawGrid1DrawCell(TObject *Sender, int ACol, int ARow,
TRect &Rect, TGridDrawState State)
{
this->Canvas->Brush->Color=clBlue;
this->Canvas->FillRect(Rect);
}
But it is a really weird result. I put my StringGrid in the middle of the window but I can't see any Blue color. Instead, it is transparent. I see a colored blue Grid in the right top corner of my window.
What am I doing wrong?
How can I color each cell individually?
c++ c++builder stringgrid
edited Nov 21 '18 at 22:35
Remy Lebeau
332k18251444
asked Nov 21 '18 at 20:04
g0dafkg0dafk
87
add a comment |
I tried to do this:
void __fastcall TTetrisGame::DrawGrid1DrawCell(TObject *Sender, int ACol, int ARow,
TRect &Rect, TGridDrawState State)
{
this->Canvas->Brush->Color=clBlue;
this->Canvas->FillRect(Rect);
}
But it is a really weird result. I put my StringGrid in the middle of the window but I can't see any Blue color. Instead, it is transparent. I see a colored blue Grid in the right top corner of my window.
What am I doing wrong?
How can I color each cell individually?
c++ c++builder stringgrid
edited Nov 21 '18 at 22:35
Remy Lebeau
332k18251444
asked Nov 21 '18 at 20:04
g0dafkg0dafk
87
I tried to do this:
void __fastcall TTetrisGame::DrawGrid1DrawCell(TObject *Sender, int ACol, int ARow,
TRect &Rect, TGridDrawState State)
{
this->Canvas->Brush->Color=clBlue;
this->Canvas->FillRect(Rect);
}
But it is a really weird result. I put my StringGrid in the middle of the window but I can't see any Blue color. Instead, it is transparent. I see a colored blue Grid in the right top corner of my window.
What am I doing wrong?
How can I color each cell individually?
c++ c++builder stringgrid
c++ c++builder stringgrid
edited Nov 21 '18 at 22:35
Remy Lebeau
332k18251444
asked Nov 21 '18 at 20:04
g0dafkg0dafk
87
edited Nov 21 '18 at 22:35
Remy Lebeau
332k18251444
asked Nov 21 '18 at 20:04
g0dafkg0dafk
87
edited Nov 21 '18 at 22:35
Remy Lebeau
332k18251444
edited Nov 21 '18 at 22:35
Remy Lebeau
332k18251444
edited Nov 21 '18 at 22:35
Remy Lebeau
332k18251444
332k18251444
asked Nov 21 '18 at 20:04
g0dafkg0dafk
87
asked Nov 21 '18 at 20:04
g0dafkg0dafk
87
asked Nov 21 '18 at 20:04
g0dafkg0dafk
87
87
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You are painting on the wrong Canvas.
Inside your OnDrawCell event handler, this refers to the parent Form, because the handler is a member of the TTetrisGame class. As such, you are painting on the Form's Canvas. You need to paint on the Grid's Canvas instead:
void __fastcall TTetrisGame::DrawGrid1DrawCell(TObject *Sender, int ACol, int ARow, TRect &Rect, TGridDrawState State)
{
DrawGrid1->Canvas->Brush->Color=clBlue;
DrawGrid1->Canvas->FillRect(Rect);
}
answered Nov 21 '18 at 22:36
Remy LebeauRemy Lebeau
332k18251444
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You are painting on the wrong Canvas.
Inside your OnDrawCell event handler, this refers to the parent Form, because the handler is a member of the TTetrisGame class. As such, you are painting on the Form's Canvas. You need to paint on the Grid's Canvas instead:
void __fastcall TTetrisGame::DrawGrid1DrawCell(TObject *Sender, int ACol, int ARow, TRect &Rect, TGridDrawState State)
{
DrawGrid1->Canvas->Brush->Color=clBlue;
DrawGrid1->Canvas->FillRect(Rect);
}
answered Nov 21 '18 at 22:36
Remy LebeauRemy Lebeau
332k18251444
add a comment |
You are painting on the wrong Canvas.
Inside your OnDrawCell event handler, this refers to the parent Form, because the handler is a member of the TTetrisGame class. As such, you are painting on the Form's Canvas. You need to paint on the Grid's Canvas instead:
void __fastcall TTetrisGame::DrawGrid1DrawCell(TObject *Sender, int ACol, int ARow, TRect &Rect, TGridDrawState State)
{
DrawGrid1->Canvas->Brush->Color=clBlue;
DrawGrid1->Canvas->FillRect(Rect);
}
answered Nov 21 '18 at 22:36
Remy LebeauRemy Lebeau
332k18251444
add a comment |
You are painting on the wrong Canvas.
Inside your OnDrawCell event handler, this refers to the parent Form, because the handler is a member of the TTetrisGame class. As such, you are painting on the Form's Canvas. You need to paint on the Grid's Canvas instead:
void __fastcall TTetrisGame::DrawGrid1DrawCell(TObject *Sender, int ACol, int ARow, TRect &Rect, TGridDrawState State)
{
DrawGrid1->Canvas->Brush->Color=clBlue;
DrawGrid1->Canvas->FillRect(Rect);
}
answered Nov 21 '18 at 22:36
Remy LebeauRemy Lebeau
332k18251444
You are painting on the wrong Canvas.
Inside your OnDrawCell event handler, this refers to the parent Form, because the handler is a member of the TTetrisGame class. As such, you are painting on the Form's Canvas. You need to paint on the Grid's Canvas instead:
void __fastcall TTetrisGame::DrawGrid1DrawCell(TObject *Sender, int ACol, int ARow, TRect &Rect, TGridDrawState State)
{
DrawGrid1->Canvas->Brush->Color=clBlue;
DrawGrid1->Canvas->FillRect(Rect);
}
answered Nov 21 '18 at 22:36
Remy LebeauRemy Lebeau
332k18251444
answered Nov 21 '18 at 22:36
Remy LebeauRemy Lebeau
332k18251444
answered Nov 21 '18 at 22:36
Remy LebeauRemy Lebeau
332k18251444
answered Nov 21 '18 at 22:36
Remy LebeauRemy Lebeau
332k18251444
332k18251444
add a comment |
add a comment |
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