Graphics.DrawString 指定文本的不透明度

Question

Is it possible to specify the opacity of text written using the Graphics.DrawString method?

I'm doing something like this, but would like my text to be semi-transparent if it is possible.

Currently I'm doing this:

Graphics graphics = Graphics.FromImage(image);
graphics.DrawString("This is a watermark", 
    new Font("Arial", 40), 
    new SolidBrush(Color.Red), 
    0, 
    0);

Answer 1

Try:

int opacity = 128; // 50% opaque (0 = invisible, 255 = fully opaque)
Graphics graphics = Graphics.FromImage(image);
graphics.DrawString("This is a watermark", 
    new Font("Arial", 40), 
    new SolidBrush(Color.FromArgb(opacity, Color.Red)), 
    0, 
    0);

Answer 2

Try

new SolidBrush(Color.FromArgb(0x78FF0000))

Hope this helps