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Eric  
#1 Posted : Thursday, July 26, 2007 11:24:17 PM(UTC)
Eric

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Joined: 7/26/2007(UTC)
Posts: 3

I need to put some text on a 1bpp CCITT4 tiff file. Since this can't be done directly, I had to ConvertTo24bppRgb(), DrawText() and finally convert it back ConvertTo1bppIndexed(). After I SaveToFile() and load the file in a viewer (ex. Paint), the colors are inverted. Is this normal? Do I have to Invert() the image every time?

Thanks.
Dmitry  
#2 Posted : Monday, July 30, 2007 4:32:49 PM(UTC)
Dmitry

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Hello,

Could you post complete code sample which you use to draw text here?
Sincerely yours,
Dmitry Sevostyanov

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Eric  
#3 Posted : Thursday, August 2, 2007 3:49:34 AM(UTC)
Eric

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Joined: 7/26/2007(UTC)
Posts: 3

Here's the code in VFP:
Code:

WITH THISFORM.BitmapViewer.Bitmap
    lcMyFile = 'myfile.tif'         && 1bpp file
    .LoadFromFile(lcMyFile)

    .FormatAutoSelect = .F.
    .Unit = 2
    .Graphics.TextFormat.FontName = 'Arial'
    .Graphics.TextFormat.FontColor = 0
    .Graphics.TextFormat.FontSize = .1
    lnImgWidth = .Data.ScaleWidth
    lnImgHeight = .Data.ScaleHeight / 2
    .Data.ConvertTo24bppRgb()

    lcString = 'This is a test'
    lnTxtWidth = .Graphics.TextFormat.MeasureTextWidth(lcString) / 2
    .Graphics.DrawText(lcString, lnImgWidth - .74, lnImgHeight - lnTxtWidth, 90)

    .ColorAdjustment.Invert()
    .Data.ConvertTo1bppIndexed()
    .Formats.SelectCurrent('TIFF')
    .Formats.TiffCompressionType = 5
    .SaveToFile(lcMyFile)
ENDWITH

Thanks,

Eric
Tanya  
#4 Posted : Thursday, August 2, 2007 4:48:13 PM(UTC)
Tanya

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Hello Eric,

Thank you for reporting us about this problem. It appears a bug. We will fix it in the further release.

You may additionally use Invert method as a workaround.

Best regards,
Tatyana Bertyakova
Best regards,
Tatyana Bertyakova

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