Cheat Engine

greenzyzyzy · Newbie cheater Reputation: 0 Joined: 26 Sep 2014 Posts: 23

what does the function CreateRemoteAPC used for in dbk32.
Create a remote thread?
how to use?

Dark Byte · Posted: Wed Oct 01, 2014 2:46 pm Post subject:

it lets you execute a piece of code from within another thread and then return to where that thread left off
The thread must not be sleeping, so you have to wake it

greenzyzyzy · Newbie cheater Reputation: 0 Joined: 26 Sep 2014 Posts: 23

Will add any functions to create remote thread in future ce versions?

Dark Byte · Posted: Thu Oct 02, 2014 4:29 am Post subject:

You can already do that with createRemoteAPC (let it run CreateThread from inside the process)
Only issue is that you have to wake the thread somehow, or else wait till the game is running (usually when a game is tabbed out the thread is sleeping so thread creation will not return until the game is running again)

greenzyzyzy · Newbie cheater Reputation: 0 Joined: 26 Sep 2014 Posts: 23

do you means.use CreateRemoteAPC to create a thread function.
and this function use CreateThread to create a new thread?

Dark Byte · Posted: Thu Oct 02, 2014 5:24 am Post subject:

See createRemoteAPC as a "Change EIP/RIP on breakpoint" with such a breakpoint on every single instruction of the target
As soon as the target is executing a single instruction (actually as soon as a taskswitch happens into it) it will store the current state of the target and change EIP/RIP to the destination

Now, from inside that thread, you can load libraries, or create threads, or do whatever you want (even change memory) but make sure you do eventually come back because the thread is waiting to continue from where it left off

greenzyzyzy · Newbie cheater Reputation: 0 Joined: 26 Sep 2014 Posts: 23

en,you means createRemoteAPC is a blocking funciton?
games will waiting the function call from createRemoteAPC,right?

Dark Byte · Posted: Thu Oct 02, 2014 5:58 am Post subject:

yes, the thread you targeted with createRemoteAPC will be halted while the code inside the function executes (the other threads will keep executing)

greenzyzyzy · Newbie cheater Reputation: 0 Joined: 26 Sep 2014 Posts: 23

if the called function run some minutes.the game will not run.
it is not a good idea.if i want to return from function immediately.
i can call CreateThread( ) in CreateRemoteApc( )?like you said
is it a good idea?

Dark Byte · Posted: Thu Oct 02, 2014 6:32 am Post subject:

If you wish to run something that runs for a long time create a thread and then return yes

greenzyzyzy · Newbie cheater Reputation: 0 Joined: 26 Sep 2014 Posts: 23

would you like to give me some example codes?