Fixed GlobalSize return value for zero size block.
diff --git a/memory/global.c b/memory/global.c
index b7ceebf..c6a9f6a 100644
--- a/memory/global.c
+++ b/memory/global.c
@@ -1370,6 +1370,8 @@
if(pintern->Magic==MAGIC_GLOBAL_USED)
{
+ if (!pintern->Pointer) /* handle case of GlobalAlloc( ??,0) */
+ return 0;
retval=HeapSize(GetProcessHeap(), 0,
(char *)(pintern->Pointer)-sizeof(HGLOBAL32))-4;
}
@@ -1380,6 +1382,8 @@
}
/* HeapUnlock(GetProcessHeap()); */
}
+ /* HeapSize returns 0xffffffff on failure */
+ if (retval == 0xffffffff) retval = 0;
return retval;
}
diff --git a/memory/heap.c b/memory/heap.c
index 2e3f580..2264fef 100644
--- a/memory/heap.c
+++ b/memory/heap.c
@@ -1204,7 +1204,7 @@
* HeapSize (KERNEL32.341)
* RETURNS
* Size in bytes of allocated memory
- * 0: Failure
+ * 0xffffffff: Failure
*/
DWORD WINAPI HeapSize(
HANDLE32 heap, /* [in] Handle of heap */
