Will help you a great god, why write failed, compile there is no problem, but to run will be prompted to write failure path name

 
# include "PCH. H" 
#include  
#include  
# define GameClassName ZElementClient "Window", "
//# define dllFullpath "F: \ \ c + + Pritice \ \ GGG \ \ MFC_DLL \ \ Debug \ \ MFC_DLL DLL" 
# define dllName "MFC_DLL. DLL 
"Void InjectDll (HWND Gameh, const char * DllNameFullPath) 
{

DWORD pid=0; 
HANDLE hProcess=NULL; 
LPDWORD AddressDW=NULL; 
DWORD byWriteSize=NULL; 
HANDLE threadHandle=NULL; 
//get the game window handle 
If (Gameh!=0) 
{
//based on the game window handle to obtain process PID 
GetWindowThreadProcessId (Gameh, & amp; Pid); 
If (pid!=0) 
{
//pid gain through process handle 
HProcess=OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); 
If (hProcess!=NULL) 
{
//a piece of memory space in the game process distribution 
AddressDW=(LPDWORD) VirtualAllocEx (hProcess, NULL, 256, MEM_COMMIT, PAGE_READONLY); 
If (AddressDW!=NULL) 
{
//write DLL full path name 
WriteProcessMemory (hProcess, AddressDW DllNameFullPath, strlen (DllNameFullPath) + 1, & amp; ByWriteSize); 
If (byWriteSize & gt;=strlen (DllNameFullPath)) 
{
ThreadHandle=CreateRemoteThread (hProcess, NULL, NULL, LPTHREAD_START_ROUTINE LoadLibraryA, AddressDW, NULL, NULL); 
The WaitForSingleObject (threadHandle, 0 XFFFFFFF); 
The CloseHandle (threadHandle); 
VirtualFreeEx (hProcess, AddressDW, 256, MEM_DECOMMIT); 
The CloseHandle (hProcess); 
} 
The else 
{
Printf (" write DLL path name failure \ n "); 
} 
} 
} 
} 

} 
} 





Int main () 
{
Char DirName [256]="";//store directory name 
Char dllNamePath [256]="";//used to store the DLL full path name 
//injected DLL code 
HWND Gameh=FindWindow (GameClassName, NULL); 

Printf (" injection test \ r \ n "); 
GetCurrentDirectoryA (sizeof (DirName), DirName); 
Strcpy_s (dllNamePath DirName); 
Strcat_s (dllNamePath, \ \ ""); 
Strcat_s (dllNamePath dllName);//append DLL name 
Printf (" % s \ r \ n ", dllNamePath); 
InjectDll (Gameh dllNamePath);//DLL injection into the game window 


return 0; 
} 

CodePudding user response:

Check the WriteProcessMemory functions return values, if it fails, GetLastError () how much is the value?

CodePudding user response:

AddressDW=(LPDWORD) VirtualAllocEx (hProcess, NULL, 256, MEM_COMMIT, PAGE_READONLY ).
PAGE_READONLY you wrote in to my ass, with PAGE_READWRITE

CodePudding user response:

Well,,, good, go home later to try, thank you for your bosses