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Using GDI+ for changes from color to Gray
Message
From
07/05/2008 06:40:32
Arnold Lee
K&A International Co.,Ltd
Hong Kong, Hong Kong
 
 
To
06/05/2008 10:49:34
General information
Forum:
Visual FoxPro
Category:
Pictures and Image processing
Environment versions
Visual FoxPro:
VFP 9 SP1
OS:
Windows XP SP2
Network:
Windows 2000 Server
Database:
Visual FoxPro
Miscellaneous
Thread ID:
01315104
Message ID:
01315537
Views:
20
Thanks for gdiplusx. getmonochrome() and example start me up.

May i know is it possible to return a binary stream (like from filetostr()) from xfcBitmap object so i can save the string to memo file rightaway ?

Thank you.


>>Dear Cesar
>>
>>How are you ?
>>I know you are very interested in using GDI :)
>>In fact, i would like to convert the color jpg to 1bit black/white file for special purpose printing. could you enlighting me ? Tks
>>
>
>See if this helps you:
>
>PS: Requires GdiPlusX
>
>
>
>
** HOWTO: Get a Monochromatic 1 bit per pixel image
>
>DO LOCFILE("System.App")
>
>WITH _SCREEN.System.Drawing
>   * Create a Bitmap object based on a BMP file.
>   LOCAL loOriginalBmp AS xfcBitmap
>   loOriginalBmp = .Bitmap.New(GETPICT())
>
>   LOCAL loMonoChrBmp as xfcBitmap
>   loMonoChrBmp = loOriginalBmp.GetMonochrome()
>
>   * Dispose the original Bitmap because we don't need it any more
>   loOriginalBmp = NULL
>	
>   * Save the created Monochromatic Bmp
>   loMonochrBmp.Save("c:\Monochromatic.bmp", .Imaging.ImageFormat.Bmp)
>ENDWITH
>
>RETURN
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