internal WGLInterop()
{
WglDXCloseDeviceNV = Assign <wglDXCloseDeviceNV>();
WglDXLockObjectsNV = Assign <wglDXLockObjectsNV>();
WglDXObjectAccessNV = Assign <wglDXObjectAccessNV>();
WglDXOpenDeviceNV = Assign <wglDXOpenDeviceNV>();
WglDXRegisterObjectNV = Assign <wglDXRegisterObjectNV>();
WglDXSetResourceShareHandleNV = Assign <wglDXSetResourceShareHandleNV>();
WglDXUnlockObjectsNV = Assign <wglDXUnlockObjectsNV>();
WglDXUnregisterObjectNV = Assign <wglDXUnregisterObjectNV>();
}
public WGL_NV_DX_interop()
{
var wgl = typeof(OpenTK.Platform.Windows.All).Assembly.GetType("OpenTK.Platform.Windows.Wgl", true);
var wglInstance = wgl.GetConstructor(new Type[] { }).Invoke(new object[] { });
// STATIC (but not visible) METHODS
// Public (even though the class isn't?!)
var wglSupportsExtension = (Func <string, bool>)wgl.GetMethods().Where(m => m.Name == "SupportsExtension" && m.GetParameters().Length == 1).Single().CreateDelegate(typeof(Func <string, bool>));
var wglSupportsFunction = (Func <string, bool>)wgl.GetMethods().Where(m => m.Name == "SupportsFunction" && m.GetParameters().Length == 1).Single().CreateDelegate(typeof(Func <string, bool>));
// Private
wglIsValid = (Func <IntPtr, bool>)wgl.GetMethod("IsValid", BindingFlags.NonPublic | BindingFlags.Static).CreateDelegate(typeof(Func <IntPtr, bool>));
// INSTANCE (still invisible!) METHODS
// Protected
wglGetAddress = (Func <string, IntPtr>)wgl.GetMethod("GetAddress", BindingFlags.NonPublic | BindingFlags.Instance).CreateDelegate(typeof(Func <string, IntPtr>), wglInstance);
if (!wglSupportsExtension("WGL_NV_DX_interop"))
{
throw new NotSupportedException("OpenGL (WGL) doesn't support WGL_NV_DX_interop. Can't use WPF with OpenGL.");
}
this.WglDXCloseDeviceNV = fetch <wglDXCloseDeviceNV>();
this.WglDXLockObjectsNV = fetch <wglDXLockObjectsNV>();
this.WglDXObjectAccessNV = fetch <wglDXObjectAccessNV>();
this.WglDXOpenDeviceNV = fetch <wglDXOpenDeviceNV>();
this.WglDXRegisterObjectNV = fetch <wglDXRegisterObjectNV>();
this.WglDXSetResourceShareHandleNV = fetch <wglDXSetResourceShareHandleNV>();
this.WglDXUnlockObjectsNV = fetch <wglDXUnlockObjectsNV>();
this.WglDXUnregisterObjectNV = fetch <wglDXUnregisterObjectNV>();
// calling getaddress'd thing:
// [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
// private delegate int MultiplyByTen(int num);
//
// IntPtr pAddr=..getprocadddr..
// MultiplyByTen multiplyByTen = (MultiplyByTen) Marshal.GetDelegateForFunctionPointer(pAddr, typeof(MultiplyByTen));
}