System.Drawing.Image.FromStream() Windows XP çalıştırdığınızda ancak alıyorum ve belirten istisna "Parametre geçerli değil" Windows XP üzerinde benim Windows 7 geliştirme makinede

Question

aşağıdaki eserlerini ince "Parametre geçerli değil" son satır?

private string base64String = 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AAAAAAAAAAAAAAAAAAHmwdXmwdXmwdXmwdQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP///////n////x////8f////H////x////4f///+H////h////4P///+D////A////wH///8B////APwf/wDgD/8AAB//AAP//wAP/P8AP/h+AH/wAAB/8AAAf/AAAH/wAAAf+AGAAAwHgAAf/8AAP//gD///8B////h///////"; 

byte[] bytes = Convert.FromBase64String(base64String); 
System.IO.MemoryStream ms = new System.IO.MemoryStream(bytes); 
System.Drawing.Image b = System.Drawing.Image.FromStream(ms, false, false); 

Bu base64 dizesi dizgisi her iki işletim sisteminde de sorunsuz çalışır. Ayrıca bir simge, ancak boyutu daha küçüktür:

Answer 1

XP gerçekten dişte uzun sürüyor. Eksik olan tek şey, gdiplus.dll sürüm 1.10, ilk Vista ile birlikte gelen GDI + güncellemesi. Bu sürümdeki birçok düzeltmeler, biri için aslında ImageFormat.Icon'u destekliyor.

Resminiz verileri bir .ico dosyası temsil eder. Bunun yerine Simge (Akış) yapıcısını kullanın. 24bpp simgelerinde hala bir sorun olabilir, artık bunu kontrol etmenin bir yolu yok.

Answer 2

using (MemoryStream ms = new MemoryStream()) 
    { 
     image.Save(ms,System.Drawing.Imaging.ImageFormat.Jpeg); 
     ms.Seek(0,0); 
     byte[] data = new byte[0]; 
     data = ms.ToArray();   
    } 

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