查找以像素为单位的文本“空格”值

Question

With dealing with fonts, is there a way to figure out what the space between two characters should be if it was "1 2"?

If it is known in C++ or C#, I don't mind. If it is in C++, I will marshal it over, it if is in C#, I will save it to a file and load it in C++. I tried taking a look at the TextMetric structure but it was not there.

Answer 1

Graphics.MeasureCharacterRanges gets pretty good results measuring single glyphs (even spaces) by adding a zero-width-joiner character \‍ before and after. It does however ignore all Kerning stuff, due to the zero-width-joiners I think.

You need a bunch of additional parameters, but a new StringFormat(StringFormat.GenericTypographic) and Rectangle.Empty did just fine for me.

It returns an array of nice floating point bounds of each character in the string.

Answer 2

你可以使用Graphics.MeasureString（） ，并通过在字体和" "字符串空间？

Answer 3

If you want metrics of how text will be rendered you need to provide the text. You would need to provide the ascii space character. Modern systems using Kerning to adjust spacing and make text look more attractive.

Answer 4

Here is an example in C# using a form's Paint event handler:

private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
    float widthWithSpace = e.Graphics.MeasureString("1 2", new Font("Arial", 12)).Width;
    float widthWithoutSpace = e.Graphics.MeasureString("12", new Font("Arial", 12)).Width;
    float spaceWidthInPixels = widthWithSpace - widthWithoutSpace ;
}