How to make high qaulity image with text in C#

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C#

private Bitmap CreateBitmapImage(string sImageText)
{
    Bitmap objBmpImage = new Bitmap(2, 2);

    int intWidth = 0;
    int intHeight = 0;

    // Create the Font object for the image text drawing.
    System.Drawing.Font objFont = new System.Drawing.Font("Arial",10, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Pixel);

    // Create a graphics object to measure the text's width and height.
    Graphics objGraphics = Graphics.FromImage(objBmpImage);

    // This is where the bitmap size is determined.
    intWidth = (int)objGraphics.MeasureString(sImageText, objFont).Width;
    intHeight = (int)objGraphics.MeasureString(sImageText, objFont).Height;

    // Create the bmpImage again with the correct size for the text and font.
    objBmpImage = new Bitmap(objBmpImage, new Size(intWidth, intHeight) );


    // Add the colors to the new bitmap.
    objGraphics = Graphics.FromImage(objBmpImage);

    // Set Background color

    objGraphics.Clear(System.Drawing.Color.White);
    objGraphics.SmoothingMode = SmoothingMode.HighQuality;



    objGraphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SystemDefault;
    objGraphics.DrawString(sImageText, objFont, new SolidBrush(System.Drawing.Color.Black), 0, 0, StringFormat.GenericDefault);

    objGraphics.Flush();

    return (objBmpImage);
}

I am using this code but image with text does not clear.

[edit]SHOUTING removed, Code block added - OriginalGriff[/edit]

Posted 21-May-12 3:27am

pradeep rasara

Updated 21-May-12 3:32am

Manfred Rudolf Bihy

v3

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Comments

OriginalGriff 21-May-12 9:29am

DON'T SHOUT. Using all capitals is considered shouting on the internet, and rude (using all lower case is considered childish). Use proper capitalisation if you want to be taken seriously.

pradeep rasara 22-May-12 9:36am

its also not working with antialias.

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Manfred Rudolf Bihy · Accepted Answer · 2012-05-21T03:36:00

Please read here: How to: Use Antialiasing with Text[^].

C#

private Bitmap CreateBitmapImage(string sImageText)
{
    Bitmap objBmpImage = new Bitmap(2, 2);

    int intWidth = 0;
    int intHeight = 0;

    // Create the Font object for the image text drawing.
    System.Drawing.Font objFont = new System.Drawing.Font("Arial",10, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Pixel);

    // Create a graphics object to measure the text's width and height.
    Graphics objGraphics = Graphics.FromImage(objBmpImage);

    // This is where the bitmap size is determined.
    intWidth = (int)objGraphics.MeasureString(sImageText, objFont).Width;
    intHeight = (int)objGraphics.MeasureString(sImageText, objFont).Height;

    // Create the bmpImage again with the correct size for the text and font.
    objBmpImage = new Bitmap(objBmpImage, new Size(intWidth, intHeight) );


    // Add the colors to the new bitmap.
    objGraphics = Graphics.FromImage(objBmpImage);

    // Set Background color

    objGraphics.Clear(System.Drawing.Color.White);
    objGraphics.SmoothingMode = SmoothingMode.HighQuality;



    objGraphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias; //  <-- This is the correct value to use. ClearTypeGridFit is better yet!
    objGraphics.DrawString(sImageText, objFont, new SolidBrush(System.Drawing.Color.Black), 0, 0, StringFormat.GenericDefault);

    objGraphics.Flush();

    return (objBmpImage);
}