WinAPI: CreateHatchBrush - 建立阴影画刷

//声明:
CreateHatchBrush(
  p1: Integer; {阴影样式}
  p2: COLORREF {颜色值}
): HBRUSH;     {返回画刷句柄}

//p1 参数可选值:
HS_HORIZONTAL = 0;
HS_VERTICAL   = 1; 
HS_FDIAGONAL  = 2; 
HS_BDIAGONAL  = 3; 
HS_CROSS      = 4; 
HS_DIAGCROSS  = 5; 


//举例:
procedure TForm1.FormPaint(Sender: TObject);
var
  BrushStyle: Integer;
  BrushHandle: HBRUSH;
begin
  BrushStyle := RadioGroup1.ItemIndex;
  BrushHandle := CreateHatchBrush(BrushStyle, clRed);
  FillRect(Canvas.Handle, Rect(16,16,100,120), BrushHandle);
  DeleteObject(BrushHandle);
end;

procedure TForm1.RadioGroup1Click(Sender: TObject);
begin
  Refresh;
end;


//效果图:

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