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
341k19265460
asked Nov 21 '18 at 20:04
g0dafkg0dafk
217
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
341k19265460
asked Nov 21 '18 at 20:04
g0dafkg0dafk
217
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
341k19265460
asked Nov 21 '18 at 20:04
g0dafkg0dafk
217
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
341k19265460
asked Nov 21 '18 at 20:04
g0dafkg0dafk
217
edited Nov 21 '18 at 22:35
Remy Lebeau
341k19265460
asked Nov 21 '18 at 20:04
g0dafkg0dafk
217
edited Nov 21 '18 at 22:35
Remy Lebeau
341k19265460
edited Nov 21 '18 at 22:35
Remy Lebeau
341k19265460
edited Nov 21 '18 at 22:35
Remy Lebeau
341k19265460
341k19265460
asked Nov 21 '18 at 20:04
g0dafkg0dafk
217
asked Nov 21 '18 at 20:04
g0dafkg0dafk
217
asked Nov 21 '18 at 20:04
g0dafkg0dafk
217
217
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
341k19265460
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
341k19265460
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
341k19265460
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
341k19265460
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
341k19265460
answered Nov 21 '18 at 22:36
Remy LebeauRemy Lebeau
341k19265460
answered Nov 21 '18 at 22:36
Remy LebeauRemy Lebeau
341k19265460
answered Nov 21 '18 at 22:36
Remy LebeauRemy Lebeau
341k19265460
341k19265460
add a comment |
add a comment |
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