我这里有个例子，希望对你有帮助。Option Explicit ' 'This shows how to incorporate machine code into VB ''''''''''''''''''''''''''''''''''''''''''''''''''' 'The example fills the array with a few machine instructions and then copies 'them to a procedure address. The modified procedure is then called thru 'CallWindowProc. The result of this specific machine code is your CPU Vendor Name. ' '########################################################################## 'Apparently it gets a Stack Pointer Error, but I don't know why; if anybody 'can fix that please let me know... [email protected] 'The Error is not present in the native compiled version; so I think it got 'something to do with the P-Code Calling Convention (strange though)... '########################################################################## ' 'Sub Dummy serves to reserve some space to copy the machine instructions into. ' ' 'Tested on Intel and AMD CPU's (uncompiled and compiled) ' ' Private Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal hWnd As Long, ByVal Msg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (lpvDest As Any, lpvSource As Any, ByVal cbCopy As Long) Private x As LongPublic Function GetCpuName() As String
Dim MachineCode(0 To 35) As Byte Dim VarAddr As Long Dim FunctAddr As Long Dim EAX As Long Dim CPUName(1 To 12) As Byte
MachineCode(31) = &HC9 'leave MachineCode(32) = &HC2 'ret 16 I tried everything from 0 to 24 MachineCode(33) = &H10 ' but all produce the stack error MachineCode(34) = &H0
'tell cpuid what we want EAX = 0
'get address of Machine Code VarAddr = VarPtr(MachineCode(0))
'get address of Sub Dummy FunctAddr = GetAddress(AddressOf Dummy)
'copy the Machine Code to where it can be called CopyMemory ByVal FunctAddr, ByVal VarAddr, 35 '35 bytes machine code
'call it On Error Resume Next 'apparently it gets a stack pointer error when in P-Code but i dont know why CallWindowProc FunctAddr, EAX, VarPtr(CPUName(1)), VarPtr(CPUName(9)), VarPtr(CPUName(5)) 'Debug.Print Err; Err.Description 'MsgBox Err & Err.Description On Error GoTo 0
End FunctionPrivate Function GetAddress(Address As Long) As Long GetAddress = AddressEnd FunctionPrivate Sub Dummy() 'the code below just reserves some space to copy the machine code into 'it is never executed x = 0 x = 1 x = 2 x = 3 x = 4 x = 5 x = 6 x = 7 x = 8 x = 9 x = 10 x = 0 x = 1 x = 2 x = 3 x = 4 x = 5 x = 6 x = 7 x = 8 x = 9 x = 10
'
'This shows how to incorporate machine code into VB
'''''''''''''''''''''''''''''''''''''''''''''''''''
'The example fills the array with a few machine instructions and then copies
'them to a procedure address. The modified procedure is then called thru
'CallWindowProc. The result of this specific machine code is your CPU Vendor Name.
'
'##########################################################################
'Apparently it gets a Stack Pointer Error, but I don't know why; if anybody
'can fix that please let me know... [email protected]
'The Error is not present in the native compiled version; so I think it got
'something to do with the P-Code Calling Convention (strange though)...
'##########################################################################
'
'Sub Dummy serves to reserve some space to copy the machine instructions into.
'
'
'Tested on Intel and AMD CPU's (uncompiled and compiled)
'
'
Private Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal hWnd As Long, ByVal Msg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (lpvDest As Any, lpvSource As Any, ByVal cbCopy As Long)
Private x As LongPublic Function GetCpuName() As String
Dim MachineCode(0 To 35) As Byte
Dim VarAddr As Long
Dim FunctAddr As Long
Dim EAX As Long
Dim CPUName(1 To 12) As Byte
'set up machine code
MachineCode(0) = &H55 'push ebp
MachineCode(1) = &H8B 'move ebp,esp
MachineCode(2) = &HEC
MachineCode(3) = &H57 'push edi
MachineCode(4) = &H52 'push edx
MachineCode(5) = &H51 'push ecx
MachineCode(6) = &H53 'push ebx
MachineCode(7) = &H8B 'move eax,dword ptr [ebp+8]
MachineCode(8) = &H45
MachineCode(9) = &H8
MachineCode(10) = &HF 'cpuid
MachineCode(11) = &HA2
MachineCode(12) = &H8B 'mov edi,dword ptr [ebp+12]
MachineCode(13) = &H7D
MachineCode(14) = &HC
MachineCode(15) = &H89 'move dword ptr [edi],ebx
MachineCode(16) = &H1F
MachineCode(17) = &H8B 'mov edi,dword ptr [ebp+16]
MachineCode(18) = &H7D
MachineCode(19) = &H10
MachineCode(20) = &H89 'move dword ptr [edi],ecx
MachineCode(21) = &HF
MachineCode(22) = &H8B 'mov edi,dword ptr [ebp+20]
MachineCode(23) = &H7D
MachineCode(24) = &H14
MachineCode(25) = &H89 'move dword ptr [edi],edx
MachineCode(26) = &H17
MachineCode(27) = &H58 'pop ebx MachineCode(28) = &H59 'pop ecx MachineCode(29) = &H5A 'pop edx MachineCode(30) = &H55 'pop edi
MachineCode(31) = &HC9 'leave MachineCode(32) = &HC2 'ret 16 I tried everything from 0 to 24
MachineCode(33) = &H10 ' but all produce the stack error
MachineCode(34) = &H0
'tell cpuid what we want
EAX = 0
'get address of Machine Code
VarAddr = VarPtr(MachineCode(0))
'get address of Sub Dummy
FunctAddr = GetAddress(AddressOf Dummy)
'copy the Machine Code to where it can be called
CopyMemory ByVal FunctAddr, ByVal VarAddr, 35 '35 bytes machine code
'call it
On Error Resume Next 'apparently it gets a stack pointer error when in P-Code but i dont know why
CallWindowProc FunctAddr, EAX, VarPtr(CPUName(1)), VarPtr(CPUName(9)), VarPtr(CPUName(5))
'Debug.Print Err; Err.Description
'MsgBox Err & Err.Description
On Error GoTo 0
GetCpuName = StrConv(CPUName(), vbUnicode) 'UnicodeName
End FunctionPrivate Function GetAddress(Address As Long) As Long GetAddress = AddressEnd FunctionPrivate Sub Dummy() 'the code below just reserves some space to copy the machine code into
'it is never executed x = 0
x = 1
x = 2
x = 3
x = 4
x = 5
x = 6
x = 7
x = 8
x = 9
x = 10
x = 0
x = 1
x = 2
x = 3
x = 4
x = 5
x = 6
x = 7
x = 8
x = 9
x = 10
End Sub