Function InjectDll

emmy_tool/src/windows/utility.cpp:257–334

}

bool InjectDll(DWORD processId, const char *dllDir, const char *dllFileName, bool capture) {
	if (IsBeingInjected(processId, dllFileName)) {
		MessageEvent("The process already attached.");
		return true;
	}

	MessageEvent("Start inject dll ...");
	bool success = true;

	const HANDLE process = OpenProcess(PROCESS_ALL_ACCESS, FALSE, processId);

	if (process == nullptr) {
		MessageEvent("Failed to open process", MessageType_Error);
		OutputError(GetLastError());
		return false;
	}
	DWORD exitCode = 0;

	// Set dll directory
	void *dllDirRemote = RemoteDup(process, dllDir, strlen(dllDir) + 1);
	ExecuteRemoteKernelFuntion(process, "SetDllDirectoryA", dllDirRemote, exitCode);
	VirtualFreeEx(process, dllDirRemote, 0, MEM_RELEASE);

	// Load the DLL.
	void *remoteFileName = RemoteDup(process, dllFileName, strlen(dllFileName) + 1);
	success &= ExecuteRemoteKernelFuntion(process, "LoadLibraryA", remoteFileName, exitCode);
	VirtualFreeEx(process, remoteFileName, 0, MEM_RELEASE);
	if (!success || exitCode == 0) {
		MessageEvent("Failed to load library", MessageType_Error);
		return false;
	}


	void *lpParam = nullptr;
	if (capture) {
		lpParam = (void *) VirtualAllocEx(process, 0, sizeof(RemoteThreadParam), MEM_COMMIT,
		                                  PAGE_READWRITE);
		RemoteThreadParam param;
		param.bRedirect = TRUE;

		::WriteProcessMemory(process, lpParam, &param, sizeof(RemoteThreadParam), NULL);
	}

	// Read shared data & call 'StartupHookMode()'
	TSharedData data;
	if (ReadSharedData(data)) {
		DWORD threadId;
		HANDLE thread = CreateRemoteThread(process,
		                                   nullptr,
		                                   0,
		                                   (LPTHREAD_START_ROUTINE) data.lpInit,
		                                   (void *) lpParam,
		                                   0,
		                                   &threadId);

		if (thread != nullptr) {
			WaitForSingleObject(thread, INFINITE);
			GetExitCodeThread(thread, &exitCode);