Index: /trunk/src/VBox/Storage/CUE.cpp
===================================================================
--- /trunk/src/VBox/Storage/CUE.cpp	(revision 66493)
+++ /trunk/src/VBox/Storage/CUE.cpp	(revision 66494)
@@ -35,4 +35,5 @@
 
 #include "VDBackends.h"
+#include "VDBackendsInline.h"
 
 
@@ -1759,169 +1760,32 @@
 
 /** @copydoc VDIMAGEBACKEND::pfnGetComment */
-static DECLCALLBACK(int) cueGetComment(void *pBackendData, char *pszComment,
-                                       size_t cbComment)
-{
-    RT_NOREF2(pszComment, cbComment);
-    LogFlowFunc(("pBackendData=%#p pszComment=%#p cbComment=%zu\n", pBackendData, pszComment, cbComment));
-    PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc comment='%s'\n", VERR_NOT_SUPPORTED, pszComment));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_COMMENT_DEF_NOT_SUPPORTED(cueGetComment);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetComment */
-static DECLCALLBACK(int) cueSetComment(void *pBackendData, const char *pszComment)
-{
-    RT_NOREF1(pszComment);
-    LogFlowFunc(("pBackendData=%#p pszComment=\"%s\"\n", pBackendData, pszComment));
-    PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_COMMENT_DEF_NOT_SUPPORTED(cueSetComment, PCUEIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetUuid */
-static DECLCALLBACK(int) cueGetUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(cueGetUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetUuid */
-static DECLCALLBACK(int) cueSetUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(cueSetUuid, PCUEIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetModificationUuid */
-static DECLCALLBACK(int) cueGetModificationUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(cueGetModificationUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetModificationUuid */
-static DECLCALLBACK(int) cueSetModificationUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(cueSetModificationUuid, PCUEIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetParentUuid */
-static DECLCALLBACK(int) cueGetParentUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(cueGetParentUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetParentUuid */
-static DECLCALLBACK(int) cueSetParentUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(cueSetParentUuid, PCUEIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetParentModificationUuid */
-static DECLCALLBACK(int) cueGetParentModificationUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
-    return rc;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(cueGetParentModificationUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetParentModificationUuid */
-static DECLCALLBACK(int) cueSetParentModificationUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(cueSetParentModificationUuid, PCUEIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnDump */
Index: /trunk/src/VBox/Storage/DMG.cpp
===================================================================
--- /trunk/src/VBox/Storage/DMG.cpp	(revision 66493)
+++ /trunk/src/VBox/Storage/DMG.cpp	(revision 66494)
@@ -37,4 +37,5 @@
 
 #include "VDBackends.h"
+#include "VDBackendsInline.h"
 
 
@@ -2238,169 +2239,33 @@
 }
 
-/** @interface_method_impl{VDIMAGEBACKEND,pfnGetComment} */
-static DECLCALLBACK(int) dmgGetComment(void *pBackendData, char *pszComment, size_t cbComment)
-{
-    RT_NOREF2(pszComment, cbComment);
-    LogFlowFunc(("pBackendData=%#p pszComment=%#p cbComment=%zu\n", pBackendData, pszComment, cbComment));
-    PDMGIMAGE pThis = (PDMGIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc comment='%s'\n", VERR_NOT_SUPPORTED, pszComment));
-    return VERR_NOT_SUPPORTED;
-}
-
-/** @interface_method_impl{VDIMAGEBACKEND,pfnSetComment} */
-static DECLCALLBACK(int) dmgSetComment(void *pBackendData, const char *pszComment)
-{
-    RT_NOREF1(pszComment);
-    LogFlowFunc(("pBackendData=%#p pszComment=\"%s\"\n", pBackendData, pszComment));
-    PDMGIMAGE pThis = (PDMGIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
-
-/** @interface_method_impl{VDIMAGEBACKEND,pfnGetUuid} */
-static DECLCALLBACK(int) dmgGetUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PDMGIMAGE pThis = (PDMGIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
-
-/** @interface_method_impl{VDIMAGEBACKEND,pfnSetUuid} */
-static DECLCALLBACK(int) dmgSetUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PDMGIMAGE pThis = (PDMGIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
-
-/** @interface_method_impl{VDIMAGEBACKEND,pfnGetModificationUuid} */
-static DECLCALLBACK(int) dmgGetModificationUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PDMGIMAGE pThis = (PDMGIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
-
-/** @interface_method_impl{VDIMAGEBACKEND,pfnSetModificationUuid} */
-static DECLCALLBACK(int) dmgSetModificationUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PDMGIMAGE pThis = (PDMGIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
-
-/** @interface_method_impl{VDIMAGEBACKEND,pfnGetParentUuid} */
-static DECLCALLBACK(int) dmgGetParentUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PDMGIMAGE pThis = (PDMGIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
-
-/** @interface_method_impl{VDIMAGEBACKEND,pfnSetParentUuid} */
-static DECLCALLBACK(int) dmgSetParentUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PDMGIMAGE pThis = (PDMGIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
-
-/** @interface_method_impl{VDIMAGEBACKEND,pfnGetParentModificationUuid} */
-static DECLCALLBACK(int) dmgGetParentModificationUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PDMGIMAGE pThis = (PDMGIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
-    return rc;
-}
-
-/** @interface_method_impl{VDIMAGEBACKEND,pfnSetParentModificationUuid} */
-static DECLCALLBACK(int) dmgSetParentModificationUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PDMGIMAGE pThis = (PDMGIMAGE)pBackendData;
-
-    AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+/** @copydoc VDIMAGEBACKEND::pfnGetComment */
+VD_BACKEND_CALLBACK_GET_COMMENT_DEF_NOT_SUPPORTED(dmgGetComment);
+
+/** @copydoc VDIMAGEBACKEND::pfnSetComment */
+VD_BACKEND_CALLBACK_SET_COMMENT_DEF_NOT_SUPPORTED(dmgSetComment, PDMGIMAGE);
+
+/** @copydoc VDIMAGEBACKEND::pfnGetUuid */
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(dmgGetUuid);
+
+/** @copydoc VDIMAGEBACKEND::pfnSetUuid */
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(dmgSetUuid, PDMGIMAGE);
+
+/** @copydoc VDIMAGEBACKEND::pfnGetModificationUuid */
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(dmgGetModificationUuid);
+
+/** @copydoc VDIMAGEBACKEND::pfnSetModificationUuid */
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(dmgSetModificationUuid, PDMGIMAGE);
+
+/** @copydoc VDIMAGEBACKEND::pfnGetParentUuid */
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(dmgGetParentUuid);
+
+/** @copydoc VDIMAGEBACKEND::pfnSetParentUuid */
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(dmgSetParentUuid, PDMGIMAGE);
+
+/** @copydoc VDIMAGEBACKEND::pfnGetParentModificationUuid */
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(dmgGetParentModificationUuid);
+
+/** @copydoc VDIMAGEBACKEND::pfnSetParentModificationUuid */
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(dmgSetParentModificationUuid, PDMGIMAGE);
 
 /** @interface_method_impl{VDIMAGEBACKEND,pfnDump} */
Index: /trunk/src/VBox/Storage/ISCSI.cpp
===================================================================
--- /trunk/src/VBox/Storage/ISCSI.cpp	(revision 66493)
+++ /trunk/src/VBox/Storage/ISCSI.cpp	(revision 66494)
@@ -38,4 +38,5 @@
 
 #include "VDBackends.h"
+#include "VDBackendsInline.h"
 
 
@@ -5287,163 +5288,32 @@
 
 /** @copydoc VDIMAGEBACKEND::pfnGetComment */
-static DECLCALLBACK(int) iscsiGetComment(void *pBackendData, char *pszComment,
-                                         size_t cbComment)
-{
-    RT_NOREF2(pszComment, cbComment);
-    LogFlowFunc(("pBackendData=%#p pszComment=%#p cbComment=%zu\n", pBackendData, pszComment, cbComment));
-    PISCSIIMAGE pImage = (PISCSIIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc comment='%s'\n", VERR_NOT_SUPPORTED, pszComment));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_COMMENT_DEF_NOT_SUPPORTED(iscsiGetComment);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetComment */
-static DECLCALLBACK(int) iscsiSetComment(void *pBackendData, const char *pszComment)
-{
-    RT_NOREF1(pszComment);
-    LogFlowFunc(("pBackendData=%#p pszComment=\"%s\"\n", pBackendData, pszComment));
-    PISCSIIMAGE pImage = (PISCSIIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
-        rc = VERR_NOT_SUPPORTED;
-    else
-        rc = VERR_VD_IMAGE_READ_ONLY;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_COMMENT_DEF_NOT_SUPPORTED(iscsiSetComment, PISCSIIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetUuid */
-static DECLCALLBACK(int) iscsiGetUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PISCSIIMAGE pImage = (PISCSIIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(iscsiGetUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetUuid */
-static DECLCALLBACK(int) iscsiSetUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PISCSIIMAGE pImage = (PISCSIIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
-        rc = VERR_NOT_SUPPORTED;
-    else
-        rc = VERR_VD_IMAGE_READ_ONLY;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(iscsiSetUuid, PISCSIIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetModificationUuid */
-static DECLCALLBACK(int) iscsiGetModificationUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PISCSIIMAGE pImage = (PISCSIIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(iscsiGetModificationUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetModificationUuid */
-static DECLCALLBACK(int) iscsiSetModificationUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PISCSIIMAGE pImage = (PISCSIIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
-        rc = VERR_NOT_SUPPORTED;
-    else
-        rc = VERR_VD_IMAGE_READ_ONLY;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(iscsiSetModificationUuid, PISCSIIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetParentUuid */
-static DECLCALLBACK(int) iscsiGetParentUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PISCSIIMAGE pImage = (PISCSIIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(iscsiGetParentUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetParentUuid */
-static DECLCALLBACK(int) iscsiSetParentUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PISCSIIMAGE pImage = (PISCSIIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
-        rc = VERR_NOT_SUPPORTED;
-    else
-        rc = VERR_VD_IMAGE_READ_ONLY;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(iscsiSetParentUuid, PISCSIIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetParentModificationUuid */
-static DECLCALLBACK(int) iscsiGetParentModificationUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PISCSIIMAGE pImage = (PISCSIIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(iscsiGetParentModificationUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetParentModificationUuid */
-static DECLCALLBACK(int) iscsiSetParentModificationUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PISCSIIMAGE pImage = (PISCSIIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
-        rc = VERR_NOT_SUPPORTED;
-    else
-        rc = VERR_VD_IMAGE_READ_ONLY;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(iscsiSetParentModificationUuid, PISCSIIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnDump */
Index: /trunk/src/VBox/Storage/QCOW.cpp
===================================================================
--- /trunk/src/VBox/Storage/QCOW.cpp	(revision 66493)
+++ /trunk/src/VBox/Storage/QCOW.cpp	(revision 66494)
@@ -33,4 +33,5 @@
 
 #include "VDBackends.h"
+#include "VDBackendsInline.h"
 
 /** @page pg_storage_qcow   QCOW Storage Backend
@@ -2116,162 +2117,32 @@
 
 /** @copydoc VDIMAGEBACKEND::pfnGetComment */
-static DECLCALLBACK(int) qcowGetComment(void *pBackendData, char *pszComment, size_t cbComment)
-{
-    RT_NOREF2(pszComment, cbComment);
-    LogFlowFunc(("pBackendData=%#p pszComment=%#p cbComment=%zu\n", pBackendData, pszComment, cbComment));
-    PQCOWIMAGE pImage = (PQCOWIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc comment='%s'\n", VERR_NOT_SUPPORTED, pszComment));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_COMMENT_DEF_NOT_SUPPORTED(qcowGetComment);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetComment */
-static DECLCALLBACK(int) qcowSetComment(void *pBackendData, const char *pszComment)
-{
-    RT_NOREF1(pszComment);
-    LogFlowFunc(("pBackendData=%#p pszComment=\"%s\"\n", pBackendData, pszComment));
-    PQCOWIMAGE pImage = (PQCOWIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_COMMENT_DEF_NOT_SUPPORTED(qcowSetComment, PQCOWIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetUuid */
-static DECLCALLBACK(int) qcowGetUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PQCOWIMAGE pImage = (PQCOWIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(qcowGetUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetUuid */
-static DECLCALLBACK(int) qcowSetUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PQCOWIMAGE pImage = (PQCOWIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(qcowSetUuid, PQCOWIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetModificationUuid */
-static DECLCALLBACK(int) qcowGetModificationUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PQCOWIMAGE pImage = (PQCOWIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(qcowGetModificationUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetModificationUuid */
-static DECLCALLBACK(int) qcowSetModificationUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PQCOWIMAGE pImage = (PQCOWIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(qcowSetModificationUuid, PQCOWIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetParentUuid */
-static DECLCALLBACK(int) qcowGetParentUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PQCOWIMAGE pImage = (PQCOWIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(qcowGetParentUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetParentUuid */
-static DECLCALLBACK(int) qcowSetParentUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PQCOWIMAGE pImage = (PQCOWIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(qcowSetParentUuid, PQCOWIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetParentModificationUuid */
-static DECLCALLBACK(int) qcowGetParentModificationUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PQCOWIMAGE pImage = (PQCOWIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(qcowGetParentModificationUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetParentModificationUuid */
-static DECLCALLBACK(int) qcowSetParentModificationUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PQCOWIMAGE pImage = (PQCOWIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(qcowSetParentModificationUuid, PQCOWIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnDump */
Index: /trunk/src/VBox/Storage/QED.cpp
===================================================================
--- /trunk/src/VBox/Storage/QED.cpp	(revision 66493)
+++ /trunk/src/VBox/Storage/QED.cpp	(revision 66494)
@@ -33,4 +33,5 @@
 
 #include "VDBackends.h"
+#include "VDBackendsInline.h"
 
 /**
@@ -2125,163 +2126,32 @@
 
 /** @copydoc VDIMAGEBACKEND::pfnGetComment */
-static DECLCALLBACK(int) qedGetComment(void *pBackendData, char *pszComment,
-                                       size_t cbComment)
-{
-    RT_NOREF2(pszComment, cbComment);
-    LogFlowFunc(("pBackendData=%#p pszComment=%#p cbComment=%zu\n", pBackendData, pszComment, cbComment));
-    PQEDIMAGE pImage = (PQEDIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc comment='%s'\n", VERR_NOT_SUPPORTED, pszComment));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_COMMENT_DEF_NOT_SUPPORTED(qedGetComment);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetComment */
-static DECLCALLBACK(int) qedSetComment(void *pBackendData, const char *pszComment)
-{
-    RT_NOREF1(pszComment);
-    LogFlowFunc(("pBackendData=%#p pszComment=\"%s\"\n", pBackendData, pszComment));
-    PQEDIMAGE pImage = (PQEDIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_COMMENT_DEF_NOT_SUPPORTED(qedSetComment, PQEDIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetUuid */
-static DECLCALLBACK(int) qedGetUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PQEDIMAGE pImage = (PQEDIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(qedGetUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetUuid */
-static DECLCALLBACK(int) qedSetUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PQEDIMAGE pImage = (PQEDIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(qedSetUuid, PQEDIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetModificationUuid */
-static DECLCALLBACK(int) qedGetModificationUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PQEDIMAGE pImage = (PQEDIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(qedGetModificationUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetModificationUuid */
-static DECLCALLBACK(int) qedSetModificationUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PQEDIMAGE pImage = (PQEDIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(qedSetModificationUuid, PQEDIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetParentUuid */
-static DECLCALLBACK(int) qedGetParentUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PQEDIMAGE pImage = (PQEDIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(qedGetParentUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetParentUuid */
-static DECLCALLBACK(int) qedSetParentUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PQEDIMAGE pImage = (PQEDIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(qedSetParentUuid, PQEDIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetParentModificationUuid */
-static DECLCALLBACK(int) qedGetParentModificationUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PQEDIMAGE pImage = (PQEDIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
-    return VERR_NOT_SUPPORTED;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(qedGetParentModificationUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetParentModificationUuid */
-static DECLCALLBACK(int) qedSetParentModificationUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PQEDIMAGE pImage = (PQEDIMAGE)pBackendData;
-
-    AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
-
-    int rc;
-    if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-        rc = VERR_VD_IMAGE_READ_ONLY;
-    else
-        rc = VERR_NOT_SUPPORTED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(qedSetParentModificationUuid, PQEDIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnDump */
Index: /trunk/src/VBox/Storage/VHDX.cpp
===================================================================
--- /trunk/src/VBox/Storage/VHDX.cpp	(revision 66493)
+++ /trunk/src/VBox/Storage/VHDX.cpp	(revision 66494)
@@ -33,4 +33,5 @@
 
 #include "VDBackends.h"
+#include "VDBackendsInline.h"
 
 
@@ -2263,219 +2264,32 @@
 
 /** @copydoc VDIMAGEBACKEND::pfnGetComment */
-static DECLCALLBACK(int) vhdxGetComment(void *pBackendData, char *pszComment,
-                                        size_t cbComment)
-{
-    RT_NOREF2(pszComment, cbComment);
-    LogFlowFunc(("pBackendData=%#p pszComment=%#p cbComment=%zu\n", pBackendData, pszComment, cbComment));
-    PVHDXIMAGE pImage = (PVHDXIMAGE)pBackendData;
-    int rc;
-
-    AssertPtr(pImage);
-
-    if (pImage)
-        rc = VERR_NOT_SUPPORTED;
-    else
-        rc = VERR_VD_NOT_OPENED;
-
-    LogFlowFunc(("returns %Rrc comment='%s'\n", rc, pszComment));
-    return rc;
-}
+VD_BACKEND_CALLBACK_GET_COMMENT_DEF_NOT_SUPPORTED(vhdxGetComment);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetComment */
-static DECLCALLBACK(int) vhdxSetComment(void *pBackendData, const char *pszComment)
-{
-    RT_NOREF1(pszComment);
-    LogFlowFunc(("pBackendData=%#p pszComment=\"%s\"\n", pBackendData, pszComment));
-    PVHDXIMAGE pImage = (PVHDXIMAGE)pBackendData;
-    int rc;
-
-    AssertPtr(pImage);
-
-    if (pImage)
-    {
-        if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
-            rc = VERR_VD_IMAGE_READ_ONLY;
-        else
-            rc = VERR_NOT_SUPPORTED;
-    }
-    else
-        rc = VERR_VD_NOT_OPENED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_COMMENT_DEF_NOT_SUPPORTED(vhdxSetComment, PVHDXIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetUuid */
-static DECLCALLBACK(int) vhdxGetUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PVHDXIMAGE pImage = (PVHDXIMAGE)pBackendData;
-    int rc;
-
-    AssertPtr(pImage);
-
-    if (pImage)
-        rc = VERR_NOT_SUPPORTED;
-    else
-        rc = VERR_VD_NOT_OPENED;
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
-    return rc;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(vhdxGetUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetUuid */
-static DECLCALLBACK(int) vhdxSetUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PVHDXIMAGE pImage = (PVHDXIMAGE)pBackendData;
-    int rc;
-
-    LogFlowFunc(("%RTuuid\n", pUuid));
-    AssertPtr(pImage);
-
-    if (pImage)
-    {
-        if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
-            rc = VERR_NOT_SUPPORTED;
-        else
-            rc = VERR_VD_IMAGE_READ_ONLY;
-    }
-    else
-        rc = VERR_VD_NOT_OPENED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(vhdxSetUuid, PVHDXIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetModificationUuid */
-static DECLCALLBACK(int) vhdxGetModificationUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PVHDXIMAGE pImage = (PVHDXIMAGE)pBackendData;
-    int rc;
-
-    AssertPtr(pImage);
-
-    if (pImage)
-        rc = VERR_NOT_SUPPORTED;
-    else
-        rc = VERR_VD_NOT_OPENED;
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
-    return rc;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(vhdxGetModificationUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetModificationUuid */
-static DECLCALLBACK(int) vhdxSetModificationUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PVHDXIMAGE pImage = (PVHDXIMAGE)pBackendData;
-    int rc;
-
-    AssertPtr(pImage);
-
-    if (pImage)
-    {
-        if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
-            rc = VERR_NOT_SUPPORTED;
-        else
-            rc = VERR_VD_IMAGE_READ_ONLY;
-    }
-    else
-        rc = VERR_VD_NOT_OPENED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(vhdxSetModificationUuid, PVHDXIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetParentUuid */
-static DECLCALLBACK(int) vhdxGetParentUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PVHDXIMAGE pImage = (PVHDXIMAGE)pBackendData;
-    int rc;
-
-    AssertPtr(pImage);
-
-    if (pImage)
-        rc = VERR_NOT_SUPPORTED;
-    else
-        rc = VERR_VD_NOT_OPENED;
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
-    return rc;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(vhdxGetParentUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetParentUuid */
-static DECLCALLBACK(int) vhdxSetParentUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PVHDXIMAGE pImage = (PVHDXIMAGE)pBackendData;
-    int rc;
-
-    AssertPtr(pImage);
-
-    if (pImage)
-    {
-        if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
-            rc = VERR_NOT_SUPPORTED;
-        else
-            rc = VERR_VD_IMAGE_READ_ONLY;
-    }
-    else
-        rc = VERR_VD_NOT_OPENED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(vhdxSetParentUuid, PVHDXIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnGetParentModificationUuid */
-static DECLCALLBACK(int) vhdxGetParentModificationUuid(void *pBackendData, PRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
-    PVHDXIMAGE pImage = (PVHDXIMAGE)pBackendData;
-    int rc;
-
-    AssertPtr(pImage);
-
-    if (pImage)
-        rc = VERR_NOT_SUPPORTED;
-    else
-        rc = VERR_VD_NOT_OPENED;
-
-    LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
-    return rc;
-}
+VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(vhdxGetParentModificationUuid);
 
 /** @copydoc VDIMAGEBACKEND::pfnSetParentModificationUuid */
-static DECLCALLBACK(int) vhdxSetParentModificationUuid(void *pBackendData, PCRTUUID pUuid)
-{
-    RT_NOREF1(pUuid);
-    LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
-    PVHDXIMAGE pImage = (PVHDXIMAGE)pBackendData;
-    int rc;
-
-    AssertPtr(pImage);
-
-    if (pImage)
-    {
-        if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
-            rc = VERR_NOT_SUPPORTED;
-        else
-            rc = VERR_VD_IMAGE_READ_ONLY;
-    }
-    else
-        rc = VERR_VD_NOT_OPENED;
-
-    LogFlowFunc(("returns %Rrc\n", rc));
-    return rc;
-}
+VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(vhdxSetParentModificationUuid, PVHDXIMAGE);
 
 /** @copydoc VDIMAGEBACKEND::pfnDump */