[Bug]: The signature of **RealGetWindowClass** function is wrong

[zenglanmu]

for example in Source/Krypton Toolkit Suite Extended/Extended Controls/ExtendedToolkit/Utilities/Classes/WIN32.cs, the signature of RealGetWindowClass is:
public static extern int RealGetWindowClass(IntPtr hwnd, System.Text.StringBuilder pszType, int cchType);

the type of parameter cchType should be uint instead of int, reference:

https://www.pinvoke.net/default.aspx/user32.realgetwindowclass

in my case, this would cause the "PInvokeImbance" warning, then lead to a memory leak bug

[PWagner1]

Hi @zenglanmu

Thanks for letting me know, will fix straight away!