Windwos font display, using the textmetric structure to store the font of each display field. Baseline generally by ascent
calculations. The height of the font includes ascent and descent. To calculate the body font, you can use
Height, you can also use the value of the height+external leading. External Leading is
font Designer design, in order to give the upper and lower lines between Leave a space. But some text input functions
(such as: Textout/drawtext), the External leading is not considered at output.
Span style= "Color:rgb (48,48,48); font-family: ' Segoe UI ', Segoe,candara,arial,sans-serif; font-size:18px; line-height:30px "> can be used exttextout
replaces TextOut. In addition, when the programmer is designing the program,
You can also design your own line structure to control above and below gap values.
Windows font Display knowledge