by Bar Zohan
5. April 2010 23:02
Here is the code for drawing outlined text over gdi supported surfaces like forms, buttons etc. In this example I'm going to draw outlined text over a bmp file and save it to the same directory as our application runs.
Start a new windows forms application and use this code inside form's load event.
BlurAmt is the parameter that determines the outline thickness of the text.
string text = "Hi Guys";
string fontFamily = "Tahoma";
float fontSize = 200;
bool fontBold = true;
bool fontItalic = true;
bool fontUnderline = false;
Color fontColor = Color.White;
Color b_Color = Color.Black;
int BlurAmt = 30;
SizeF size = new SizeF();
Font font = null;
Bitmap bitmap = new Bitmap(1, 1);
Graphics g = Graphics.FromImage(bitmap);
g.PixelOffsetMode = PixelOffsetMode.HighQuality;
g.TextRenderingHint = TextRenderingHint.AntiAlias;
g.SmoothingMode = SmoothingMode.HighQuality;
FontStyle fontStyle = FontStyle.Regular;
if (fontBold) fontStyle |= FontStyle.Bold;
if (fontItalic) fontStyle |= FontStyle.Italic;
if (fontUnderline) fontStyle |= FontStyle.Underline;
font = new Font(fontFamily, fontSize, fontStyle, GraphicsUnit.Pixel);
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Near;
sf.FormatFlags = StringFormatFlags.DisplayFormatControl;
sf.LineAlignment = StringAlignment.Near;
sf.Trimming = StringTrimming.Word;
size = g.MeasureString(text, font, new PointF(0, 0), sf);
bitmap = new Bitmap((int)size.Width, (int)size.Height, PixelFormat.Format32bppPArgb);
g = Graphics.FromImage(bitmap);
g.Clear(Color.Transparent);
sf.Trimming = StringTrimming.None;
g.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
g.SmoothingMode = SmoothingMode.HighQuality;
g.InterpolationMode = InterpolationMode.HighQualityBilinear;
g.CompositingQuality = CompositingQuality.HighQuality;
g.PixelOffsetMode = PixelOffsetMode.HighQuality;
GraphicsUnit gUnit = GraphicsUnit.Pixel;
SolidBrush br = new SolidBrush(Color.White);
br = new SolidBrush(fontColor);
SolidBrush b_color = new SolidBrush(Color.White);
b_color = new SolidBrush(b_Color);
for (int x = 0; x <= BlurAmt; x++)
{
for (int y = 0; y <= BlurAmt; y++)
{
g.DrawString(text, font, b_color, new Point(x, y), sf);
}
}
g.DrawString(text, font, br, new Point(BlurAmt / 2, BlurAmt / 2), sf);
MemoryStream m = new MemoryStream();
Graphics gm = this.CreateGraphics();
g.DrawImage(bitmap, 0, 0);
bitmap.Save(m, ImageFormat.Png);
bitmap.Save(Application.StartupPath + "/text.bmp");
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