private unsafe IntPtr GetHookProc(int code, IntPtr wparam, ref CWPSTRUCT cwp)
{
if (CurrentProcess == 0)
{
CurrentProcess = GetCurrentProcess();
int hdwd = findwin(_windowName);
IntPtr PID = (IntPtr)pid(hdwd);
PID = (IntPtr)OpenProcess(PROCESS_ALL_ACCESS, false, (int)PID);
hdwd = (int)PID;
// if (hdwd == CurrentProcess || PID ==(IntPtr) CurrentProcess)
//{
MEMORY_BASIC_INFORMATION mbi = new MEMORY_BASIC_INFORMATION();
IntPtr dwOldProtect = IntPtr.Zero;
pfnMsgBox = GetProcAddress(LoadLibrary("ws2_32.dll"), "send");
VirtualQuery(pfnMsgBox, out mbi, 255);
VirtualProtect(pfnMsgBox, 8, PAGE_READWRITE, dwOldProtect);
ReadProcessMemory(PID, pfnMsgBox, add_old, sizeof(uint) * 2, IntPtr.Zero);
GetSend mb = new GetSend(MySend);
IntPtr new_add = Marshal.GetFunctionPointerForDelegate(mb);
byte[] b = BitConverter.GetBytes((int)new_add);
addr_new[1] = b[0];
addr_new[2] = b[1];
addr_new[3] = b[2];
addr_new[4] = b[3];
WriteProcessMemory(PID, pfnMsgBox, addr_new, sizeof(uint) * 2, IntPtr.Zero);
// VirtualProtect(pfnMsgBox, 8, mbi.Protect, IntPtr.Zero);
VirtualProtect(pfnMsgBox, 8, PAGE_READWRITE, dwOldProtect);
}
//当调用这个函数的时候就跳到我的函数上面了
// }
return(CallNextHookEx(_nextHookPtr, code, wparam, cwp));
// return (IntPtr)0;
}
static extern int WriteProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, GetSend gs, UInt32 nSize, IntPtr lpNumberOfBytesWritten);
