Index: /Include/api_system.sbp
===================================================================
--- /Include/api_system.sbp	(revision 277)
+++ /Include/api_system.sbp	(revision 278)
@@ -681,5 +681,5 @@
 Declare Function LocalSize Lib "kernel32" (hMem As HLOCAL) As SIZE_T
 Declare Function LocalUnlock Lib "kernel32" (hMem As HLOCAL) As BOOL
-Declare Function LockFile Lib "kernel32" (hFile As DWord, dwFileOffsetLow As DWord, dwFileOffsetHigh As DWord, nNumberOfBytesToLockLow As DWord, nNumberOfBytesToLockHigh As DWord) As BOOL
+Declare Function LockFile Lib "kernel32" (hFile As HANDLE, dwFileOffsetLow As DWord, dwFileOffsetHigh As DWord, nNumberOfBytesToLockLow As DWord, nNumberOfBytesToLockHigh As DWord) As BOOL
 Declare Function LoadLibrary Lib "kernel32" Alias _FuncName_LoadLibrary (pLibFileName As PCTSTR) As HINSTANCE