Re: Interoperability-Frage

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> (1)Weisst Du zufällig wie ich das in C++ managed bewerkstelligen kann?
> Da gibt es ja kein unsafe/fixed keyword.

in Managed C++ (2005:C++/CLI)
kann man sowieso managed und unmanaged C++ Source 'mischen', u.a. gibts auch IJW.



> (2)Wie übergebe ich eigentlich meinem managed code die Adresse
> ....die Adressübergabe müsste als gemarshallt werden.

Pointer & Handles in C# typisch als Typ: 'IntPtr', nur zB:
http://www.pinvoke.net/default.aspx/gdi32.CreateDIBitmap


Für .NET-Bitmaps, zusammen mit Bitmap.LockBits & unsafe, IntPtr, zB:
http://www.codeproject.com/csharp/quickgrayscale.asp



> Bitmap zu nehmen, und diese in einem WPF Window anzeigen zu lassen?

WPF hat (auch wie GDI+) eigene ('abstraktere') Bitmap und Rendering - Konzepte.
Soweit ich gerade sehe für Einbinden von GDI32-Bitmaps:
System.Windows.Interop.Imaging
CreateBitmapSourceFromHBitmap / CreateBitmapSourceFromMemorySection


> diese Surface dann in managed DirectX
> in den Backpuffer meiner GFX card zu schreiben?

ich vermute auch am ehesten/direktesten möglich mit DirectX (Direct3D ggf älteres DirectDraw),
kenne aber keine Details.


Evtl. auch ein Ansatz,
nur den jeweils sichtbaren Ausschnitt selber per Win32-API in .NET-Window zeichnen,
soweit ich mich erinnere Bsp in (ohne Gewähr):
http://www.codeproject.com/dotnet/twaindotnet.asp
(PicForm.cs OnPaint() : SetDIBitsToDevice)






--
Thomas Scheidegger - MVP .NET - 'NETMaster'
http://www.cetus-links.org/oo_dotnet.html - http://dnetmaster.net/


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