diff --git a/dlls/gdi32/tests/generated.c b/dlls/gdi32/tests/generated.c
index 6b00060d476..40c2b910b56 100644
--- a/dlls/gdi32/tests/generated.c
+++ b/dlls/gdi32/tests/generated.c
@@ -468,6 +468,7 @@ static void test_pack_COLOR16(void)
     /* COLOR16 */
     TEST_TYPE_SIZE   (COLOR16, 2)
     TEST_TYPE_ALIGN  (COLOR16, 2)
+    TEST_TYPE_UNSIGNED(COLOR16)
 }
 
 static void test_pack_COLORADJUSTMENT(void)
@@ -3014,6 +3015,7 @@ static void test_pack_FXPT16DOT16(void)
     /* FXPT16DOT16 */
     TEST_TYPE_SIZE   (FXPT16DOT16, 4)
     TEST_TYPE_ALIGN  (FXPT16DOT16, 4)
+    TEST_TYPE_SIGNED (FXPT16DOT16)
 }
 
 static void test_pack_FXPT2DOT30(void)
@@ -3021,6 +3023,7 @@ static void test_pack_FXPT2DOT30(void)
     /* FXPT2DOT30 */
     TEST_TYPE_SIZE   (FXPT2DOT30, 4)
     TEST_TYPE_ALIGN  (FXPT2DOT30, 4)
+    TEST_TYPE_SIGNED (FXPT2DOT30)
 }
 
 static void test_pack_GCP_RESULTSA(void)
@@ -3295,6 +3298,7 @@ static void test_pack_LCSCSTYPE(void)
     /* LCSCSTYPE */
     TEST_TYPE_SIZE   (LCSCSTYPE, 4)
     TEST_TYPE_ALIGN  (LCSCSTYPE, 4)
+    TEST_TYPE_SIGNED (LCSCSTYPE)
 }
 
 static void test_pack_LCSGAMUTMATCH(void)
@@ -3302,6 +3306,7 @@ static void test_pack_LCSGAMUTMATCH(void)
     /* LCSGAMUTMATCH */
     TEST_TYPE_SIZE   (LCSGAMUTMATCH, 4)
     TEST_TYPE_ALIGN  (LCSGAMUTMATCH, 4)
+    TEST_TYPE_SIGNED (LCSGAMUTMATCH)
 }
 
 static void test_pack_LINEDDAPROC(void)
@@ -6991,6 +6996,7 @@ static void test_pack_COLOR16(void)
     /* COLOR16 */
     TEST_TYPE_SIZE   (COLOR16, 2)
     TEST_TYPE_ALIGN  (COLOR16, 2)
+    TEST_TYPE_UNSIGNED(COLOR16)
 }
 
 static void test_pack_COLORADJUSTMENT(void)
@@ -9537,6 +9543,7 @@ static void test_pack_FXPT16DOT16(void)
     /* FXPT16DOT16 */
     TEST_TYPE_SIZE   (FXPT16DOT16, 4)
     TEST_TYPE_ALIGN  (FXPT16DOT16, 4)
+    TEST_TYPE_SIGNED (FXPT16DOT16)
 }
 
 static void test_pack_FXPT2DOT30(void)
@@ -9544,6 +9551,7 @@ static void test_pack_FXPT2DOT30(void)
     /* FXPT2DOT30 */
     TEST_TYPE_SIZE   (FXPT2DOT30, 4)
     TEST_TYPE_ALIGN  (FXPT2DOT30, 4)
+    TEST_TYPE_SIGNED (FXPT2DOT30)
 }
 
 static void test_pack_GCP_RESULTSA(void)
@@ -9818,6 +9826,7 @@ static void test_pack_LCSCSTYPE(void)
     /* LCSCSTYPE */
     TEST_TYPE_SIZE   (LCSCSTYPE, 4)
     TEST_TYPE_ALIGN  (LCSCSTYPE, 4)
+    TEST_TYPE_SIGNED (LCSCSTYPE)
 }
 
 static void test_pack_LCSGAMUTMATCH(void)
@@ -9825,6 +9834,7 @@ static void test_pack_LCSGAMUTMATCH(void)
     /* LCSGAMUTMATCH */
     TEST_TYPE_SIZE   (LCSGAMUTMATCH, 4)
     TEST_TYPE_ALIGN  (LCSGAMUTMATCH, 4)
+    TEST_TYPE_SIGNED (LCSGAMUTMATCH)
 }
 
 static void test_pack_LINEDDAPROC(void)
diff --git a/dlls/ntdll/tests/generated.c b/dlls/ntdll/tests/generated.c
index bf705a42fcc..d1976e87678 100644
--- a/dlls/ntdll/tests/generated.c
+++ b/dlls/ntdll/tests/generated.c
@@ -94,6 +94,7 @@ static void test_pack_DWORD_PTR(void)
     /* DWORD_PTR */
     TEST_TYPE_SIZE   (DWORD_PTR, 8)
     TEST_TYPE_ALIGN  (DWORD_PTR, 8)
+    TEST_TYPE_UNSIGNED(DWORD_PTR)
 }
 
 static void test_pack_HALF_PTR(void)
@@ -173,6 +174,7 @@ static void test_pack_SIZE_T(void)
     /* SIZE_T */
     TEST_TYPE_SIZE   (SIZE_T, 8)
     TEST_TYPE_ALIGN  (SIZE_T, 8)
+    TEST_TYPE_UNSIGNED(SIZE_T)
 }
 
 static void test_pack_SSIZE_T(void)
@@ -180,6 +182,7 @@ static void test_pack_SSIZE_T(void)
     /* SSIZE_T */
     TEST_TYPE_SIZE   (SSIZE_T, 8)
     TEST_TYPE_ALIGN  (SSIZE_T, 8)
+    TEST_TYPE_SIGNED (SSIZE_T)
 }
 
 static void test_pack_UHALF_PTR(void)
@@ -484,6 +487,7 @@ static void test_pack_HRESULT(void)
     /* HRESULT */
     TEST_TYPE_SIZE   (HRESULT, 4)
     TEST_TYPE_ALIGN  (HRESULT, 4)
+    TEST_TYPE_SIGNED (HRESULT)
 }
 
 static void test_pack_IMAGE_ARCHIVE_MEMBER_HEADER(void)
@@ -2809,6 +2813,7 @@ static void test_pack_SECURITY_CONTEXT_TRACKING_MODE(void)
     /* SECURITY_CONTEXT_TRACKING_MODE */
     TEST_TYPE_SIZE   (SECURITY_CONTEXT_TRACKING_MODE, 1)
     TEST_TYPE_ALIGN  (SECURITY_CONTEXT_TRACKING_MODE, 1)
+    TEST_TYPE_UNSIGNED(SECURITY_CONTEXT_TRACKING_MODE)
 }
 
 static void test_pack_SECURITY_DESCRIPTOR(void)
@@ -3228,6 +3233,7 @@ static void test_pack_LPARAM(void)
     /* LPARAM */
     TEST_TYPE_SIZE   (LPARAM, 8)
     TEST_TYPE_ALIGN  (LPARAM, 8)
+    TEST_TYPE_SIGNED (LPARAM)
 }
 
 static void test_pack_LPCRECT(void)
@@ -3296,6 +3302,7 @@ static void test_pack_LRESULT(void)
     /* LRESULT */
     TEST_TYPE_SIZE   (LRESULT, 8)
     TEST_TYPE_ALIGN  (LRESULT, 8)
+    TEST_TYPE_SIGNED (LRESULT)
 }
 
 static void test_pack_POINT(void)
@@ -3486,6 +3493,7 @@ static void test_pack_WPARAM(void)
     /* WPARAM */
     TEST_TYPE_SIZE   (WPARAM, 8)
     TEST_TYPE_ALIGN  (WPARAM, 8)
+    TEST_TYPE_UNSIGNED(WPARAM)
 }
 
 #else /* _WIN64 */
@@ -3511,6 +3519,7 @@ static void test_pack_DWORD_PTR(void)
     /* DWORD_PTR */
     TEST_TYPE_SIZE   (DWORD_PTR, 4)
     TEST_TYPE_ALIGN  (DWORD_PTR, 4)
+    TEST_TYPE_UNSIGNED(DWORD_PTR)
 }
 
 static void test_pack_HALF_PTR(void)
@@ -3590,6 +3599,7 @@ static void test_pack_SIZE_T(void)
     /* SIZE_T */
     TEST_TYPE_SIZE   (SIZE_T, 4)
     TEST_TYPE_ALIGN  (SIZE_T, 4)
+    TEST_TYPE_UNSIGNED(SIZE_T)
 }
 
 static void test_pack_SSIZE_T(void)
@@ -3597,6 +3607,7 @@ static void test_pack_SSIZE_T(void)
     /* SSIZE_T */
     TEST_TYPE_SIZE   (SSIZE_T, 4)
     TEST_TYPE_ALIGN  (SSIZE_T, 4)
+    TEST_TYPE_SIGNED (SSIZE_T)
 }
 
 static void test_pack_UHALF_PTR(void)
@@ -3901,6 +3912,7 @@ static void test_pack_HRESULT(void)
     /* HRESULT */
     TEST_TYPE_SIZE   (HRESULT, 4)
     TEST_TYPE_ALIGN  (HRESULT, 4)
+    TEST_TYPE_SIGNED (HRESULT)
 }
 
 static void test_pack_IMAGE_ARCHIVE_MEMBER_HEADER(void)
@@ -6226,6 +6238,7 @@ static void test_pack_SECURITY_CONTEXT_TRACKING_MODE(void)
     /* SECURITY_CONTEXT_TRACKING_MODE */
     TEST_TYPE_SIZE   (SECURITY_CONTEXT_TRACKING_MODE, 1)
     TEST_TYPE_ALIGN  (SECURITY_CONTEXT_TRACKING_MODE, 1)
+    TEST_TYPE_UNSIGNED(SECURITY_CONTEXT_TRACKING_MODE)
 }
 
 static void test_pack_SECURITY_DESCRIPTOR(void)
@@ -6645,6 +6658,7 @@ static void test_pack_LPARAM(void)
     /* LPARAM */
     TEST_TYPE_SIZE   (LPARAM, 4)
     TEST_TYPE_ALIGN  (LPARAM, 4)
+    TEST_TYPE_SIGNED (LPARAM)
 }
 
 static void test_pack_LPCRECT(void)
@@ -6713,6 +6727,7 @@ static void test_pack_LRESULT(void)
     /* LRESULT */
     TEST_TYPE_SIZE   (LRESULT, 4)
     TEST_TYPE_ALIGN  (LRESULT, 4)
+    TEST_TYPE_SIGNED (LRESULT)
 }
 
 static void test_pack_POINT(void)
@@ -6903,6 +6918,7 @@ static void test_pack_WPARAM(void)
     /* WPARAM */
     TEST_TYPE_SIZE   (WPARAM, 4)
     TEST_TYPE_ALIGN  (WPARAM, 4)
+    TEST_TYPE_UNSIGNED(WPARAM)
 }
 
 #endif /* _WIN64 */
diff --git a/dlls/rpcrt4/tests/generated.c b/dlls/rpcrt4/tests/generated.c
index fe8bc4bf64f..3c143265fa7 100644
--- a/dlls/rpcrt4/tests/generated.c
+++ b/dlls/rpcrt4/tests/generated.c
@@ -91,6 +91,7 @@ static void test_pack_RPC_STATUS(void)
     /* RPC_STATUS */
     TEST_TYPE_SIZE   (RPC_STATUS, 4)
     TEST_TYPE_ALIGN  (RPC_STATUS, 4)
+    TEST_TYPE_SIGNED (RPC_STATUS)
 }
 
 static void test_pack_PRPC_POLICY(void)
@@ -952,6 +953,7 @@ static void test_pack_RPC_STATUS(void)
     /* RPC_STATUS */
     TEST_TYPE_SIZE   (RPC_STATUS, 4)
     TEST_TYPE_ALIGN  (RPC_STATUS, 4)
+    TEST_TYPE_SIGNED (RPC_STATUS)
 }
 
 static void test_pack_PRPC_POLICY(void)
diff --git a/dlls/shell32/tests/generated.c b/dlls/shell32/tests/generated.c
index 34626c29364..86e8e549480 100644
--- a/dlls/shell32/tests/generated.c
+++ b/dlls/shell32/tests/generated.c
@@ -360,6 +360,7 @@ static void test_pack_OLECHAR(void)
     /* OLECHAR */
     TEST_TYPE_SIZE   (OLECHAR, 2)
     TEST_TYPE_ALIGN  (OLECHAR, 2)
+    TEST_TYPE_UNSIGNED(OLECHAR)
 }
 
 static void test_pack_PROPID(void)
@@ -367,6 +368,7 @@ static void test_pack_PROPID(void)
     /* PROPID */
     TEST_TYPE_SIZE   (PROPID, 4)
     TEST_TYPE_ALIGN  (PROPID, 4)
+    TEST_TYPE_UNSIGNED(PROPID)
 }
 
 static void test_pack_RemHBITMAP(void)
@@ -451,6 +453,7 @@ static void test_pack_SCODE(void)
     /* SCODE */
     TEST_TYPE_SIZE   (SCODE, 4)
     TEST_TYPE_ALIGN  (SCODE, 4)
+    TEST_TYPE_SIGNED (SCODE)
 }
 
 static void test_pack_UP_BYTE_BLOB(void)
@@ -2178,6 +2181,7 @@ static void test_pack_OLECHAR(void)
     /* OLECHAR */
     TEST_TYPE_SIZE   (OLECHAR, 2)
     TEST_TYPE_ALIGN  (OLECHAR, 2)
+    TEST_TYPE_UNSIGNED(OLECHAR)
 }
 
 static void test_pack_PROPID(void)
@@ -2185,6 +2189,7 @@ static void test_pack_PROPID(void)
     /* PROPID */
     TEST_TYPE_SIZE   (PROPID, 4)
     TEST_TYPE_ALIGN  (PROPID, 4)
+    TEST_TYPE_UNSIGNED(PROPID)
 }
 
 static void test_pack_RemHBITMAP(void)
@@ -2269,6 +2274,7 @@ static void test_pack_SCODE(void)
     /* SCODE */
     TEST_TYPE_SIZE   (SCODE, 4)
     TEST_TYPE_ALIGN  (SCODE, 4)
+    TEST_TYPE_SIGNED (SCODE)
 }
 
 static void test_pack_UP_BYTE_BLOB(void)
diff --git a/dlls/winmm/tests/generated.c b/dlls/winmm/tests/generated.c
index ccc0d20d867..ae183afad22 100644
--- a/dlls/winmm/tests/generated.c
+++ b/dlls/winmm/tests/generated.c
@@ -905,6 +905,8 @@ static void test_pack_MIXERCONTROLDETAILS_UNSIGNED(void)
 static void test_pack_MMIOINFO(void)
 {
     /* MMIOINFO (pack 1) */
+    TEST_TYPE_SIZE   (MMIOINFO, 100)
+    TEST_TYPE_ALIGN  (MMIOINFO, 1)
     TEST_FIELD_SIZE  (MMIOINFO, dwFlags, 4)
     TEST_FIELD_ALIGN (MMIOINFO, dwFlags, 1)
     TEST_FIELD_OFFSET(MMIOINFO, dwFlags, 0)
@@ -917,6 +919,42 @@ static void test_pack_MMIOINFO(void)
     TEST_FIELD_SIZE  (MMIOINFO, wErrorRet, 4)
     TEST_FIELD_ALIGN (MMIOINFO, wErrorRet, 1)
     TEST_FIELD_OFFSET(MMIOINFO, wErrorRet, 16)
+    TEST_FIELD_SIZE  (MMIOINFO, hTask, 8)
+    TEST_FIELD_ALIGN (MMIOINFO, hTask, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, hTask, 20)
+    TEST_FIELD_SIZE  (MMIOINFO, cchBuffer, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, cchBuffer, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, cchBuffer, 28)
+    TEST_FIELD_SIZE  (MMIOINFO, pchBuffer, 8)
+    TEST_FIELD_ALIGN (MMIOINFO, pchBuffer, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, pchBuffer, 32)
+    TEST_FIELD_SIZE  (MMIOINFO, pchNext, 8)
+    TEST_FIELD_ALIGN (MMIOINFO, pchNext, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, pchNext, 40)
+    TEST_FIELD_SIZE  (MMIOINFO, pchEndRead, 8)
+    TEST_FIELD_ALIGN (MMIOINFO, pchEndRead, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, pchEndRead, 48)
+    TEST_FIELD_SIZE  (MMIOINFO, pchEndWrite, 8)
+    TEST_FIELD_ALIGN (MMIOINFO, pchEndWrite, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, pchEndWrite, 56)
+    TEST_FIELD_SIZE  (MMIOINFO, lBufOffset, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, lBufOffset, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, lBufOffset, 64)
+    TEST_FIELD_SIZE  (MMIOINFO, lDiskOffset, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, lDiskOffset, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, lDiskOffset, 68)
+    TEST_FIELD_SIZE  (MMIOINFO, adwInfo, 12)
+    TEST_FIELD_ALIGN (MMIOINFO, adwInfo, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, adwInfo, 72)
+    TEST_FIELD_SIZE  (MMIOINFO, dwReserved1, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, dwReserved1, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, dwReserved1, 84)
+    TEST_FIELD_SIZE  (MMIOINFO, dwReserved2, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, dwReserved2, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, dwReserved2, 88)
+    TEST_FIELD_SIZE  (MMIOINFO, hmmio, 8)
+    TEST_FIELD_ALIGN (MMIOINFO, hmmio, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, hmmio, 92)
 }
 
 static void test_pack_MMCKINFO(void)
@@ -3332,6 +3370,8 @@ static void test_pack_MIXERCONTROLDETAILS_UNSIGNED(void)
 static void test_pack_MMIOINFO(void)
 {
     /* MMIOINFO (pack 1) */
+    TEST_TYPE_SIZE   (MMIOINFO, 72)
+    TEST_TYPE_ALIGN  (MMIOINFO, 1)
     TEST_FIELD_SIZE  (MMIOINFO, dwFlags, 4)
     TEST_FIELD_ALIGN (MMIOINFO, dwFlags, 1)
     TEST_FIELD_OFFSET(MMIOINFO, dwFlags, 0)
@@ -3344,6 +3384,42 @@ static void test_pack_MMIOINFO(void)
     TEST_FIELD_SIZE  (MMIOINFO, wErrorRet, 4)
     TEST_FIELD_ALIGN (MMIOINFO, wErrorRet, 1)
     TEST_FIELD_OFFSET(MMIOINFO, wErrorRet, 12)
+    TEST_FIELD_SIZE  (MMIOINFO, hTask, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, hTask, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, hTask, 16)
+    TEST_FIELD_SIZE  (MMIOINFO, cchBuffer, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, cchBuffer, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, cchBuffer, 20)
+    TEST_FIELD_SIZE  (MMIOINFO, pchBuffer, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, pchBuffer, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, pchBuffer, 24)
+    TEST_FIELD_SIZE  (MMIOINFO, pchNext, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, pchNext, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, pchNext, 28)
+    TEST_FIELD_SIZE  (MMIOINFO, pchEndRead, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, pchEndRead, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, pchEndRead, 32)
+    TEST_FIELD_SIZE  (MMIOINFO, pchEndWrite, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, pchEndWrite, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, pchEndWrite, 36)
+    TEST_FIELD_SIZE  (MMIOINFO, lBufOffset, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, lBufOffset, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, lBufOffset, 40)
+    TEST_FIELD_SIZE  (MMIOINFO, lDiskOffset, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, lDiskOffset, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, lDiskOffset, 44)
+    TEST_FIELD_SIZE  (MMIOINFO, adwInfo, 12)
+    TEST_FIELD_ALIGN (MMIOINFO, adwInfo, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, adwInfo, 48)
+    TEST_FIELD_SIZE  (MMIOINFO, dwReserved1, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, dwReserved1, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, dwReserved1, 60)
+    TEST_FIELD_SIZE  (MMIOINFO, dwReserved2, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, dwReserved2, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, dwReserved2, 64)
+    TEST_FIELD_SIZE  (MMIOINFO, hmmio, 4)
+    TEST_FIELD_ALIGN (MMIOINFO, hmmio, 1)
+    TEST_FIELD_OFFSET(MMIOINFO, hmmio, 68)
 }
 
 static void test_pack_MMCKINFO(void)