diff --git a/DDrawCompat/CompatD3dDdiDeviceCallbacks.cpp b/DDrawCompat/CompatD3dDdiDeviceCallbacks.cpp
index fdc8746..6638514 100644
--- a/DDrawCompat/CompatD3dDdiDeviceCallbacks.cpp
+++ b/DDrawCompat/CompatD3dDdiDeviceCallbacks.cpp
@@ -1,4 +1,99 @@
+#define CINTERFACE
+
+#include <Windows.h>
+#include <../km/d3dkmthk.h>
+
 #include "CompatD3dDdiDeviceCallbacks.h"
+#include "DDrawLog.h"
+#include "Hook.h"
+
+std::ostream& operator<<(std::ostream& os, const D3DDDI_ALLOCATIONINFO& data)
+{
+	return Compat::LogStruct(os)
+		<< Compat::hex(data.hAllocation)
+		<< data.pSystemMem
+		<< data.pPrivateDriverData
+		<< data.PrivateDriverDataSize
+		<< data.VidPnSourceId
+		<< Compat::hex(data.Flags.Value);
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_ALLOCATE& data)
+{
+	return Compat::LogStruct(os)
+		<< data.pPrivateDriverData
+		<< data.PrivateDriverDataSize
+		<< data.hResource
+		<< Compat::hex(data.hKMResource)
+		<< data.NumAllocations
+		<< Compat::array(data.pAllocationInfo, data.NumAllocations);
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DKMT_CREATEALLOCATION& data)
+{
+	return Compat::LogStruct(os)
+		<< Compat::hex(data.hDevice)
+		<< Compat::hex(data.hResource)
+		<< Compat::hex(data.hGlobalShare)
+		<< data.pPrivateRuntimeData
+		<< data.PrivateRuntimeDataSize
+		<< data.pPrivateDriverData
+		<< data.PrivateDriverDataSize
+		<< data.NumAllocations
+		<< Compat::array(data.pAllocationInfo, data.NumAllocations)
+		<< Compat::hex(*reinterpret_cast<const DWORD*>(&data.Flags))
+		<< data.hPrivateRuntimeResourceHandle;
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_DEALLOCATE& data)
+{
+	return Compat::LogStruct(os)
+		<< data.hResource
+		<< data.NumAllocations
+		<< Compat::hex(Compat::array(data.HandleList, data.NumAllocations));
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_DEALLOCATE2& data)
+{
+	return Compat::LogStruct(os)
+		<< data.hResource
+		<< data.NumAllocations
+		<< Compat::hex(Compat::array(data.HandleList, data.NumAllocations))
+		<< Compat::hex(data.Flags.Value);
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_LOCK& data)
+{
+	return Compat::LogStruct(os)
+		<< Compat::hex(data.hAllocation)
+		<< data.PrivateDriverData
+		<< data.NumPages
+		<< Compat::array(data.pPages, data.NumPages)
+		<< data.pData
+		<< Compat::hex(data.Flags.Value)
+		<< Compat::hex(data.GpuVirtualAddress);
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_LOCK2& data)
+{
+	return Compat::LogStruct(os)
+		<< Compat::hex(data.hAllocation)
+		<< Compat::hex(data.Flags.Value)
+		<< data.pData;
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_UNLOCK& data)
+{
+	return Compat::LogStruct(os)
+		<< data.NumAllocations
+		<< Compat::hex(Compat::array(data.phAllocations, data.NumAllocations));
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_UNLOCK2& data)
+{
+	return Compat::LogStruct(os)
+		<< Compat::hex(data.hAllocation);
+}
 
 void CompatD3dDdiDeviceCallbacks::setCompatVtable(D3DDDI_DEVICECALLBACKS& /*vtable*/)
 {
diff --git a/DDrawCompat/CompatD3dDdiDeviceCallbacks.h b/DDrawCompat/CompatD3dDdiDeviceCallbacks.h
index 81095aa..0f9c260 100644
--- a/DDrawCompat/CompatD3dDdiDeviceCallbacks.h
+++ b/DDrawCompat/CompatD3dDdiDeviceCallbacks.h
@@ -3,6 +3,15 @@
 #include "CompatVtable.h"
 #include "D3dDdiDeviceCallbacksVisitor.h"
 
+std::ostream& operator<<(std::ostream& os, const D3DDDI_ALLOCATIONINFO& data);
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_ALLOCATE& data);
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_DEALLOCATE& data);
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_DEALLOCATE2& data);
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_LOCK& data);
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_LOCK2& data);
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_UNLOCK& data);
+std::ostream& operator<<(std::ostream& os, const D3DDDICB_UNLOCK2& data);
+
 class CompatD3dDdiDeviceCallbacks : public CompatVtable<CompatD3dDdiDeviceCallbacks, D3dDdiDeviceCallbacksIntf>
 {
 public:
diff --git a/DDrawCompat/CompatD3dDdiDeviceFuncs.cpp b/DDrawCompat/CompatD3dDdiDeviceFuncs.cpp
index 736f7cf..95fd517 100644
--- a/DDrawCompat/CompatD3dDdiDeviceFuncs.cpp
+++ b/DDrawCompat/CompatD3dDdiDeviceFuncs.cpp
@@ -1,5 +1,104 @@
 #include "CompatD3dDdiDeviceFuncs.h"
 
+std::ostream& operator<<(std::ostream& os, const D3DDDI_RATIONAL& val)
+{
+	return Compat::LogStruct(os)
+		<< val.Numerator
+		<< val.Denominator;
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDI_SURFACEINFO& val)
+{
+	return Compat::LogStruct(os)
+		<< val.Width
+		<< val.Height
+		<< val.Depth
+		<< val.pSysMem
+		<< val.SysMemPitch
+		<< val.SysMemSlicePitch;
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDIARG_CREATERESOURCE& val)
+{
+	return Compat::LogStruct(os)
+		<< val.Format
+		<< val.Pool
+		<< val.MultisampleType
+		<< val.MultisampleQuality
+		<< Compat::array(val.pSurfList, val.SurfCount)
+		<< val.SurfCount
+		<< val.MipLevels
+		<< val.Fvf
+		<< val.VidPnSourceId
+		<< val.RefreshRate
+		<< val.hResource
+		<< Compat::hex(val.Flags.Value)
+		<< val.Rotation;
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDIARG_CREATERESOURCE2& val)
+{
+	return Compat::LogStruct(os)
+		<< val.Format
+		<< val.Pool
+		<< val.MultisampleType
+		<< val.MultisampleQuality
+		<< Compat::array(val.pSurfList, val.SurfCount)
+		<< val.SurfCount
+		<< val.MipLevels
+		<< val.Fvf
+		<< val.VidPnSourceId
+		<< val.RefreshRate
+		<< val.hResource
+		<< Compat::hex(val.Flags.Value)
+		<< val.Rotation
+		<< Compat::hex(val.Flags2.Value);
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDIARG_LOCK& val)
+{
+	return Compat::LogStruct(os)
+		<< val.hResource
+		<< val.SubResourceIndex
+		<< val.Box
+		<< val.pSurfData
+		<< val.Pitch
+		<< val.SlicePitch
+		<< Compat::hex(val.Flags.Value);
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDIARG_OPENRESOURCE& val)
+{
+	return Compat::LogStruct(os)
+		<< val.NumAllocations
+		<< Compat::array(val.pOpenAllocationInfo, val.NumAllocations)
+		<< Compat::hex(val.hKMResource)
+		<< val.pPrivateDriverData
+		<< val.PrivateDriverDataSize
+		<< val.hResource
+		<< val.Rotation
+		<< Compat::hex(val.Flags.Value);
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDIARG_UNLOCK& val)
+{
+	return Compat::LogStruct(os)
+		<< val.hResource
+		<< val.SubResourceIndex
+		<< Compat::hex(val.Flags.Value);
+}
+
+std::ostream& operator<<(std::ostream& os, const D3DDDIBOX& box)
+{
+	return Compat::LogStruct(os)
+		<< box.Left
+		<< box.Top
+		<< box.Right
+		<< box.Bottom
+		<< box.Front
+		<< box.Back;
+}
+
 void CompatD3dDdiDeviceFuncs::setCompatVtable(D3DDDI_DEVICEFUNCS& /*vtable*/)
 {
 }
diff --git a/DDrawCompat/CompatD3dDdiDeviceFuncs.h b/DDrawCompat/CompatD3dDdiDeviceFuncs.h
index b4ee404..af68244 100644
--- a/DDrawCompat/CompatD3dDdiDeviceFuncs.h
+++ b/DDrawCompat/CompatD3dDdiDeviceFuncs.h
@@ -3,6 +3,15 @@
 #include "CompatVtable.h"
 #include "D3dDdiDeviceFuncsVisitor.h"
 
+std::ostream& operator<<(std::ostream& os, const D3DDDI_RATIONAL& val);
+std::ostream& operator<<(std::ostream& os, const D3DDDI_SURFACEINFO& val);
+std::ostream& operator<<(std::ostream& os, const D3DDDIARG_CREATERESOURCE& val);
+std::ostream& operator<<(std::ostream& os, const D3DDDIARG_CREATERESOURCE2& val);
+std::ostream& operator<<(std::ostream& os, const D3DDDIARG_LOCK& val);
+std::ostream& operator<<(std::ostream& os, const D3DDDIARG_OPENRESOURCE& val);
+std::ostream& operator<<(std::ostream& os, const D3DDDIARG_UNLOCK& val);
+std::ostream& operator<<(std::ostream& os, const D3DDDIBOX& val);
+
 class CompatD3dDdiDeviceFuncs : public CompatVtable<CompatD3dDdiDeviceFuncs, D3dDdiDeviceFuncsIntf>
 {
 public:
diff --git a/DDrawCompat/D3dDdiHooks.cpp b/DDrawCompat/D3dDdiHooks.cpp
index f44fab1..ff30c8c 100644
--- a/DDrawCompat/D3dDdiHooks.cpp
+++ b/DDrawCompat/D3dDdiHooks.cpp
@@ -12,6 +12,17 @@
 
 HRESULT APIENTRY OpenAdapter(D3DDDIARG_OPENADAPTER*) { return 0; }
 
+std::ostream& operator<<(std::ostream& os, const D3DDDIARG_OPENADAPTER& data)
+{
+	return Compat::LogStruct(os)
+		<< data.hAdapter
+		<< data.Interface
+		<< data.Version
+		<< data.pAdapterCallbacks
+		<< data.pAdapterFuncs
+		<< data.DriverVersion;
+}
+
 namespace
 {
 	UINT g_ddiVersion = 0;
diff --git a/DDrawCompat/DDrawLog.h b/DDrawCompat/DDrawLog.h
index 925c28a..ce97588 100644
--- a/DDrawCompat/DDrawLog.h
+++ b/DDrawCompat/DDrawLog.h
@@ -62,6 +62,20 @@ namespace Compat
 
 	template <typename Num> Hex<Num> hex(Num val) { return Hex<Num>(val); }
 
+	template <typename Elem>
+	struct Array
+	{
+		Array(const Elem* elem, const unsigned long size) : elem(elem), size(size) {}
+		const Elem* elem;
+		const unsigned long size;
+	};
+
+	template <typename Elem>
+	Array<Elem> array(const Elem* elem, const unsigned long size)
+	{
+		return Array<Elem>(elem, size);
+	}
+
 	class Log
 	{
 	public:
@@ -187,3 +201,18 @@ std::ostream& operator<<(std::ostream& os, Compat::Hex<Num> hex)
 	os << "0x" << std::hex << hex.val << std::dec;
 	return os;
 }
+
+template <typename Elem>
+std::ostream& operator<<(std::ostream& os, Compat::Array<Elem> array)
+{
+	os << '[';
+	if (0 != array.size)
+	{
+		os << array.elem[0];
+	}
+	for (unsigned long i = 1; i < array.size; ++i)
+	{
+		os << ',' << array.elem[i];
+	}
+	return os << ']';
+}