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NothingToShow
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 Posted: Sat May 24, 2008 12:06 pm Post subject: [Question] Freeze Process |
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Is there a way to freeze a process?
I think you all know what I mean by freezing.
I've searched, but had no results. |
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| Posted: Sat May 24, 2008 1:04 pm Post subject: |
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| Freeze all the threads? |
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NothingToShow
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| Posted: Sat May 24, 2008 1:56 pm Post subject: |
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Uhm, I don't really know much of threads.
What I'm asking is, if there's a way to freeze a process, and if possible, unfreeze it again.
Like appalsap's "Buy Time". (http://forum.cheatengine.org/viewtopic.php?t=164934 check under tools) |
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Dark Byte
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| Posted: Sat May 24, 2008 2:02 pm Post subject: |
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if you're on windows XP or later you can use SuspendProcess
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NothingToShow
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| Posted: Sat May 24, 2008 2:08 pm Post subject: |
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| Dark Byte wrote: | | if you're on windows XP or later you can use SuspendProcess |
You've got any snippets?
Thanks for the "hint" btw.
EDIT:
Found this, can you use that aswell?
| Code: | DWORD WINAPI WaitForSingleObject(
__in HANDLE hHandle,
__in DWORD dwMilliseconds
); |
I'm trying to do this in delphi.
Last edited by NothingToShow on Sat May 24, 2008 2:19 pm; edited 2 times in total |
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DoomsDay
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| Posted: Sat May 24, 2008 2:16 pm Post subject: |
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| Get the target process' ID, use it to create a thread snapshot using CreateToolHelp32Snapshot, then use OpenThread, and then, SuspenThread\ResumeThread. |
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NothingToShow
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| Posted: Sat May 24, 2008 2:19 pm Post subject: |
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| DoomsDay wrote: | | Get the target process' ID, use it to create a thread snapshot using CreateToolHelp32Snapshot, then use OpenThread, and then, SuspenThread\ResumeThread. |
I'll "mess around". Sounds a bit confusing since I've never messed with all that. |
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rapion124
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| Posted: Sat May 24, 2008 3:08 pm Post subject: |
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Windows is thread-based. A process is simply a group of threads. It is like a container. The threads do all the execution of code. In order to "freeze" a process, you must suspend all of the process's threads. Use CreateToolhelp32Snapshot, OpenThread, and SuspendThread.
Btw, SuspendProcess simply does the mentioned above. |
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NothingToShow
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| Posted: Sat May 24, 2008 3:13 pm Post subject: |
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| rapion124 wrote: | Windows is thread-based. A process is simply a group of threads. It is like a container. The threads do all the execution of code. In order to "freeze" a process, you must suspend all of the process's threads. Use CreateToolhelp32Snapshot, OpenThread, and SuspendThread.
Btw, SuspendProcess simply does the mentioned above. |
I can't find anything about SuspendProcess. |
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lurc
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| Posted: Sat May 24, 2008 3:43 pm Post subject: |
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You have to suspend all of the thread's within a process.
Using CreateToolhelp32Snapshot, Thread32First and Thread32Next
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NothingToShow
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| Posted: Sat May 24, 2008 4:12 pm Post subject: |
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| x0r wrote: | | Code: | VOID SuspendProcess(HANDLE hProcess)
{
HANDLE hSnapshot, hThread;
hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, GetProcessId(hProcess));
if (hSnapshot != NULL)
{
THREADENTRY32 ThreadEntry;
ThreadEntry.dwSize = sizeof(THREADENTRY32);
if (Thread32First(hSnapshot, &ThreadEntry))
{
do
{
hThread = OpenThread(THREAD_SUSPEND_RESUME, NULL, ThreadEntry.th32ThreadID);
if (hThread != NULL)
{
SuspendThread(hThread);
CloseHandle(hThread);
}
} while (Thread32Next(hSnapshot, &ThreadEntry));
}
CloseHandle(hSnapshot);
}
} |
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Thanks, I'll try to convert it to Delphi. |
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Dark Byte
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| Posted: Sat May 24, 2008 4:52 pm Post subject: |
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I meant ntSuspendProcess (a function in ntdll.dll)
takes a processhandle
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NothingToShow
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| Posted: Sun May 25, 2008 7:25 am Post subject: |
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Thanks for all the help, I'll have to mess around with it.
I have anothe question, not regarding this, but I didn't want to create a new topic for it.
In Flash you've got ._X and ._Y, what have you got in Delphi?
I think it's .top and .left, but is there a way to make it x and y. |
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Dark Byte
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| Posted: Sun May 25, 2008 8:12 am Post subject: |
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a new topic would be better.
anyhow, create this unit:
| Code: |
unit newform;
interface
uses classes,forms;
type TForm=class(forms.TForm) //override TForm class
private
function getTop: integer;
procedure setTop(y: integer);
function getLeft: integer;
procedure setLeft(x: integer);
public
property _x: integer read getLeft write setLeft;
property _y: integer read getTop write setTop;
end;
implementation
function TForm.getTop: integer;
begin
result:=top;
end;
procedure TForm.setTop(y: integer);
begin
top:=y;
end;
function TForm.getLeft: integer;
begin
result:=left;
end;
procedure TForm.setLeft(x: integer);
begin
left:=x;
end;
end.
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and add this unit to your form's uses list.
Now you can use _x:=value and _y:=value to set top and left
(if your formclass is a different name, eg inherited form, you'll havwe to make some minor changes)
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Last edited by Dark Byte on Sun May 25, 2008 6:00 pm; edited 1 time in total |
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NothingToShow
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| Posted: Sun May 25, 2008 9:02 am Post subject: |
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Thanks!  |
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