_ff-addon-snippet-JSCTypesKernel - Setting up JS CTypes so can bypass that WinXP crashing issue on TB_BUTTON.

_ff-addon-snippet-JSCTypesKernel.js

Cu.import('resource://gre/modules/ctypes.jsm');

var kernel32 = ctypes.open('kernel32.dll');
var user32 = ctypes.open('user32.dll');

/* http://msdn.microsoft.com/en-us/library/windows/desktop/ms684320%28v=vs.85%29.aspx
* HANDLE WINAPI OpenProcess(
* __in_  DWORD dwDesiredAccess,
* __in_  BOOL bInheritHandle,
* __in_  DWORD dwProcessId
* );
*/
var OpenProcess = kernel32.declare('OpenProcess', ctypes.winapi_abi, ctypes.voidptr_t, //HANDLE
    ctypes.unsigned_long, //DWORD
    ctypes.bool, //BOOL
    ctypes.unsigned_long //DWORD
);

/* http://msdn.microsoft.com/en-us/library/windows/desktop/aa366890%28v=vs.85%29.aspx
* LPVOID WINAPI VirtualAllocEx(
* __in_      HANDLE hProcess,
* __in_opt_  LPVOID lpAddress,
* __in_      SIZE_T dwSize,
* __in_      DWORD flAllocationType,
* __in_      DWORD flProtect
* );
*/
var VirtualAllocEx = kernel32.declare('VirtualAllocEx', ctypes.winapi_abi, ctypes.voidptr_t, //LPVOID
    ctypes.voidptr_t, //HANDLE
    ctypes.voidptr_t, //LPVOID
    ctypes.voidptr_t.size == 8 ? ctypes.uint64_t : ctypes.unsigned_long, //SIZE_T
    ctypes.unsigned_long, //DWORD
    ctypes.unsigned_long //DWORD
);

/* http://msdn.microsoft.com/en-us/library/windows/desktop/ms681674%28v=vs.85%29.aspx
* BOOL WINAPI WriteProcessMemory(
* __in_   HANDLE hProcess,
* __in_   LPVOID lpBaseAddress,
* __in_   LPCVOID lpBuffer,
* __in_   SIZE_T nSize,
* __out_  SIZE_T *lpNumberOfBytesWritten
* );
*/
var WriteProcessMemory = kernel32.declare('WriteProcessMemory', ctypes.winapi_abi, ctypes.bool, //BOOL
    ctypes.voidptr_t, //HANDLE
    ctypes.voidptr_t, //LPVOID
    ctypes.char.ptr, //LPCVOID
    ctypes.voidptr_t.size == 8 ? ctypes.uint64_t : ctypes.unsigned_long, //SIZE_T
    ctypes.voidptr_t.size == 8 ? ctypes.uint64_t : ctypes.unsigned_long //SIZE_T
);

/* http://msdn.microsoft.com/en-us/library/windows/desktop/ms680553%28v=vs.85%29.aspx
* BOOL WINAPI ReadProcessMemory(
* __in_   HANDLE hProcess,
* __in_   LPCVOID lpBaseAddress,
* __out_  LPVOID lpBuffer,
* __in_   SIZE_T nSize,
* __out_  SIZE_T *lpNumberOfBytesRead
* );
*/
var ReadProcessMemory = kernel32.declare('ReadProcessMemory', ctypes.winapi_abi, ctypes.bool, //BOOL
    ctypes.voidptr_t, //HANDLE
    ctypes.char.ptr, //LPCVOID
    ctypes.voidptr_t, //LPVOID
    ctypes.voidptr_t.size == 8 ? ctypes.uint64_t : ctypes.unsigned_long, //SIZE_T
    ctypes.voidptr_t.size == 8 ? ctypes.uint64_t : ctypes.unsigned_long //SIZE_T
);

/* http://msdn.microsoft.com/en-us/library/windows/desktop/aa366894%28v=vs.85%29.aspx
* BOOL WINAPI VirtualFreeEx(
* __in_  HANDLE hProcess,
* __in_  LPVOID lpAddress,
* __in_  SIZE_T dwSize,
* __in_  DWORD dwFreeType
* );
*/
var VirtualFreeEx = kernel32.declare('VirtualFreeEx', ctypes.winapi_abi, ctypes.bool, //BOOL
    ctypes.voidptr_t, //HANDLE
    ctypes.voidptr_t, //LPVOID
    ctypes.voidptr_t.size == 8 ? ctypes.uint64_t : ctypes.unsigned_long, //SIZE_T
    ctypes.unsigned_long //DWORD
);

/* http://msdn.microsoft.com/en-us/library/windows/desktop/ms633522%28v=vs.85%29.aspx
* DWORD WINAPI GetWindowThreadProcessId(
* __in_       HWND hWnd,
* __out_opt_  LPDWORD lpdwProcessId
* );
*/
var GetWindowThreadProcessId = user32.declare('GetWindowThreadProcessId', ctypes.winapi_abi, ctypes.unsigned_long, //DWORD
    ctypes.voidptr_t, //HWND
    ctypes.unsigned_long.ptr //LPDWORD
);