Question

由于BGI已过时，并且原始网站上似乎缺少许多源代码，因此我一直打算设计自己的颜色引擎，该引擎将单独影响线条。到目前为止，windows.h的“ SetConsoleTextAttribute（）”可以接受的16种颜色一直很好，但是我一直想使用更多颜色（通过使用RGB而不是0xbf）来升级它的外观并给我上色自己的ASCII艺术。

“ SetTextColor（）”似乎是我要走的路线。我已经设置了一个测试功能，看看它是否有效。这是安装程序的代码段。

HDC hType;    // Handle DC, save some work to reduce repetition
int initColor ()    // Initializes engine
{
    hType = GetDC (GetConsoleWindow ());

    printf ("String     Hexadecimal\n");
    testcolorR (RGB(255, 0, 0));    // Red
    testcolorR (RGB(0, 255, 0));    // Green
    testcolorR (RGB(0, 0, 255));    // Blue

    getch ();    // Pause to see results
    return 0;    // Exit success
}

// Take in RGB
void colortextR (COLORREF rgbcolor)
{
    SetTextColor (hType, rgbcolor);
}

// Test RGB colors
int testcolorR (COLORREF color)
{
    colortextR (color);
    printf ("Hello      %#x\n", color);
    return 0;
}

但是，在命令行上，颜色没有改变，而是保留为默认的浅灰色，但这就是结果。

十六进制字符串

你好0xff

你好0xff00

你好0xff0000

这表示正在传递RGB颜色，但其他原因导致了此问题。我怀疑罪魁祸首是GetConsoleWindow（）函数。

Answer 1

SetTextColor是GUI功能；它不会在标准Windows控制台中达到您想要的效果。

如果您的应用程序只能在Windows 10 build 14392或更高版本上运行，或者在（大多数）非Windows平台（例如Linux）上运行，则通常可以使用virtual terminal sequences。请注意，即使在受支持的Windows版本上，也必须显式启用VT功能：

series.dataFields.valueY = field;
series.dataFields.categoryX = "year";

如果您的应用程序需要在Windows的较早版本上运行，并且标准的16色调色板就足够了，那么类似于以下内容的内容将起作用（请参见SetConsoleTextAttribute和console screen buffer text attributes）：

/**
 * ---------------------------------------
 * This demo was created using amCharts 4.
 * 
 * For more information visit:
 * https://www.amcharts.com/
 * 
 * Documentation is available at:
 * https://www.amcharts.com/docs/v4/
 * ---------------------------------------
 */

// Themes begin
am4core.useTheme(am4themes_animated);
// Themes end

 // Create chart instance
var chart = am4core.create("chartdiv", am4charts.XYChart);

// Add data
chart.data = [{
  "year": 2005,
  "income": 23.5,
  "expenses": 18.1,
  "cumi" : 13
},{
  "year": 2006,
  "income": 26.2,
  "expenses": 22.8,
  "cumi" : 13
},{
  "year": 2007,
  "income": 30.1,
  "expenses": 23.9,
  "cumi" : 13
},{
  "year": 2008,
  "income": 29.5,
  "expenses": 25.1,
  "cumi" : 13
},{
  "year": 2009,
  "income": 24.6,
  "expenses": 25,
  "cumi" : 13
}];

// Create axes
var categoryAxis = chart.xAxes.push(new am4charts.CategoryAxis());
categoryAxis.dataFields.category = "year";
categoryAxis.numberFormatter.numberFormat = "#";
categoryAxis.renderer.inversed = true;
categoryAxis.renderer.grid.template.location = 0;
categoryAxis.renderer.cellStartLocation = 0.1;
categoryAxis.renderer.cellEndLocation = 0.9;

var  valueAxis = chart.yAxes.push(new am4charts.ValueAxis()); 
valueAxis.renderer.opposite = true;

// Create series
function createSeries(field, name) {
  var series = chart.series.push(new am4charts.ColumnSeries());
  series.dataFields.valueY = field;
  series.dataFields.categoryX = "year";
  series.name = name;
  series.columns.template.tooltipText = "{name}: [bold]{valueX}[/]";
  series.columns.template.height = am4core.percent(100);
  series.sequencedInterpolation = true;

  var valueLabel = series.bullets.push(new am4charts.LabelBullet());
  valueLabel.label.text = "{valueX}";
  valueLabel.label.verticalCenter = "bottom";
  valueLabel.label.dx = 10;
  valueLabel.label.hideOversized = false;
  valueLabel.label.truncate = false;

  var categoryLabel = series.bullets.push(new am4charts.LabelBullet());
  categoryLabel.label.text = "{name}";
  categoryLabel.label.verticalCenter = "top";
  categoryLabel.label.dx = -10;
  categoryLabel.label.hideOversized = false;
  categoryLabel.label.truncate = false;
  
  categoryLabel.label.rotation = -90;
}

createSeries("income", "Income");
createSeries("expenses", "Expenses");
createSeries("cumi", "Cumi");

SetTextColor不更改命令行文本颜色

1 个答案: