diff --git a/dlls/d3d8/device.c b/dlls/d3d8/device.c
index 67d3b8beb95f0e92e031b8a5849ccb2a8d654ece..8b209208a00440ef1ce15a1c46f4df5329287928 100644
--- a/dlls/d3d8/device.c
+++ b/dlls/d3d8/device.c
@@ -309,7 +309,7 @@ static void WINAPI IDirect3DDevice8Impl_SetGammaRamp(LPDIRECT3DDEVICE8 iface, DW
     TRACE("(%p) Relay\n", This);
 
     /* Note: D3DGAMMARAMP is compatible with WINED3DGAMMARAMP */
-    return IWineD3DDevice_SetGammaRamp(This->WineD3DDevice, 0, Flags, (WINED3DGAMMARAMP *) pRamp);
+    return IWineD3DDevice_SetGammaRamp(This->WineD3DDevice, 0, Flags, (CONST WINED3DGAMMARAMP *) pRamp);
 }
 
 static void WINAPI IDirect3DDevice8Impl_GetGammaRamp(LPDIRECT3DDEVICE8 iface, D3DGAMMARAMP* pRamp) {
@@ -1448,14 +1448,14 @@ static HRESULT WINAPI IDirect3DDevice8Impl_DrawRectPatch(LPDIRECT3DDEVICE8 iface
     IDirect3DDevice8Impl *This = (IDirect3DDevice8Impl *)iface;
     TRACE("(%p) Relay\n", This);
 
-    return IWineD3DDevice_DrawRectPatch(This->WineD3DDevice, Handle, pNumSegs, (WINED3DRECTPATCH_INFO *)pRectPatchInfo);
+    return IWineD3DDevice_DrawRectPatch(This->WineD3DDevice, Handle, pNumSegs, (CONST WINED3DRECTPATCH_INFO *)pRectPatchInfo);
 }
 
 static HRESULT WINAPI IDirect3DDevice8Impl_DrawTriPatch(LPDIRECT3DDEVICE8 iface, UINT Handle,CONST float* pNumSegs,CONST D3DTRIPATCH_INFO* pTriPatchInfo) {
     IDirect3DDevice8Impl *This = (IDirect3DDevice8Impl *)iface;
     TRACE("(%p) Relay\n", This);
 
-    return IWineD3DDevice_DrawTriPatch(This->WineD3DDevice, Handle, pNumSegs, (WINED3DTRIPATCH_INFO *)pTriPatchInfo);
+    return IWineD3DDevice_DrawTriPatch(This->WineD3DDevice, Handle, pNumSegs, (CONST WINED3DTRIPATCH_INFO *)pTriPatchInfo);
 }
 
 static HRESULT WINAPI IDirect3DDevice8Impl_DeletePatch(LPDIRECT3DDEVICE8 iface, UINT Handle) {
diff --git a/dlls/d3d8/volume.c b/dlls/d3d8/volume.c
index e2db2f84d1596c9cc6faa1d6413158fd445f0ee2..4e3350b07f6d1dca4c799f9606c8e714e971bf8d 100644
--- a/dlls/d3d8/volume.c
+++ b/dlls/d3d8/volume.c
@@ -152,7 +152,7 @@ static HRESULT WINAPI IDirect3DVolume8Impl_GetDesc(LPDIRECT3DVOLUME8 iface, D3DV
 static HRESULT WINAPI IDirect3DVolume8Impl_LockBox(LPDIRECT3DVOLUME8 iface, D3DLOCKED_BOX *pLockedVolume, CONST D3DBOX *pBox, DWORD Flags) {
     IDirect3DVolume8Impl *This = (IDirect3DVolume8Impl *)iface;
     TRACE("(%p) relay %p %p %p %d\n", This, This->wineD3DVolume, pLockedVolume, pBox, Flags);
-    return IWineD3DVolume_LockBox(This->wineD3DVolume, (WINED3DLOCKED_BOX *) pLockedVolume, (WINED3DBOX *) pBox, Flags);
+    return IWineD3DVolume_LockBox(This->wineD3DVolume, (WINED3DLOCKED_BOX *) pLockedVolume, (CONST WINED3DBOX *) pBox, Flags);
 }
 
 static HRESULT WINAPI IDirect3DVolume8Impl_UnlockBox(LPDIRECT3DVOLUME8 iface) {
diff --git a/dlls/d3d8/volumetexture.c b/dlls/d3d8/volumetexture.c
index ada6ccdac884ead724d70354f0174cf05b077a5f..cf0202ceb2cbd02420d64468eb75edee77c84524 100644
--- a/dlls/d3d8/volumetexture.c
+++ b/dlls/d3d8/volumetexture.c
@@ -171,7 +171,7 @@ static HRESULT WINAPI IDirect3DVolumeTexture8Impl_GetVolumeLevel(LPDIRECT3DVOLUM
 static HRESULT WINAPI IDirect3DVolumeTexture8Impl_LockBox(LPDIRECT3DVOLUMETEXTURE8 iface, UINT Level, D3DLOCKED_BOX *pLockedVolume, CONST D3DBOX *pBox, DWORD Flags) {
     IDirect3DVolumeTexture8Impl *This = (IDirect3DVolumeTexture8Impl *)iface;
     TRACE("(%p) Relay %p %p %p %d\n", This, This->wineD3DVolumeTexture, pLockedVolume, pBox,Flags);
-    return IWineD3DVolumeTexture_LockBox(This->wineD3DVolumeTexture, Level, (WINED3DLOCKED_BOX *) pLockedVolume, (WINED3DBOX *) pBox, Flags);
+    return IWineD3DVolumeTexture_LockBox(This->wineD3DVolumeTexture, Level, (WINED3DLOCKED_BOX *) pLockedVolume, (CONST WINED3DBOX *) pBox, Flags);
 }
 
 static HRESULT WINAPI IDirect3DVolumeTexture8Impl_UnlockBox(LPDIRECT3DVOLUMETEXTURE8 iface, UINT Level) {
@@ -183,7 +183,7 @@ static HRESULT WINAPI IDirect3DVolumeTexture8Impl_UnlockBox(LPDIRECT3DVOLUMETEXT
 static HRESULT WINAPI IDirect3DVolumeTexture8Impl_AddDirtyBox(LPDIRECT3DVOLUMETEXTURE8 iface, CONST D3DBOX *pDirtyBox) {
     IDirect3DVolumeTexture8Impl *This = (IDirect3DVolumeTexture8Impl *)iface;
     TRACE("(%p) Relay\n", This);
-    return IWineD3DVolumeTexture_AddDirtyBox(This->wineD3DVolumeTexture, (WINED3DBOX *) pDirtyBox);
+    return IWineD3DVolumeTexture_AddDirtyBox(This->wineD3DVolumeTexture, (CONST WINED3DBOX *) pDirtyBox);
 }