C / C++ / MFC

Change windows process priority

14-Jul-03 5:56

Hi,

Whe I used my CListBox on a dialog and wanted to scroll it programatically, I used:

<br />
//pivot is the index of the line I want to show in the middle<br />
list_box.SetAnchorIndex (pivot+18);//18 line forward from the top<br />
list_box.SetSel (pivot-1);<br />

But when I used CListBox as a view inside a CFrameWnd it does not work anymore, it always shows the selected line at the top.

???????????/

Shay

memory leaks

si_6914-Jul-03 5:50

si_69

14-Jul-03 5:50

hi all

does ne1 know how to detect memory leaks, i think my application
has them

thanks

si

Re: memory leaks

John R. Shaw14-Jul-03 7:27

John R. Shaw

14-Jul-03 7:27

There are articles at codeproject on how to detect memory leaks.
You could also download a trail copy of "BoundsChecker" or some other testing software.

INTP

Re: memory leaks

Anthony_Yio15-Jul-03 0:58

Anthony_Yio

15-Jul-03 0:58

Try Numega BoundsChecker.

Or using MFC CMemoryState to see the memory usage at each stage but I think this way is kinda troublesome. I would prefer Boundschecker with nice UI.

nitropit14-Jul-03 5:35

nitropit

14-Jul-03 5:35

Hi all,

I didn't find anything about changing the priority of windows processes.
eg : I would like to have an hidden process which would set a low priority to processes like eMule, Crazy Browser, Internet Explorer, Visual Age, ...

I have to do it whith the task manager, I have many processes to modify, it's not that exciting !

I don't know if it possible, please if you have any clue, help.

Thanks all.
Confused | :confused:

Nd
.

Re: Change windows process priority

Dominik Reichl14-Jul-03 6:12

Dominik Reichl

14-Jul-03 6:12

Find the handle of the process and use the Windows API function(s) SetPriorityClass and SetThreadPriority.

BOOL SetPriorityClass(
  HANDLE hProcess,        // handle to the process
  DWORD dwPriorityClass   // priority class value
);

BOOL SetThreadPriority(
  HANDLE hThread, // handle to the thread
  int nPriority   // thread priority level
);

For the parameters, see MSDN.

Big Grin | :-D

-Dominik

_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??

Re: Change windows process priority

nitropit14-Jul-03 8:04

nitropit

14-Jul-03 8:04

I'll try it, but it doesn't seem as hard as I thought.
I hope administrator rights are not needed.

Thanks for your help.

Nd
.

Re: Change windows process priority

Mike Nordell14-Jul-03 9:26

Mike Nordell

14-Jul-03 9:26

nitropit wrote:
I hope administrator rights are not needed.

As documented, you need PROCESS_SET_INFORMATION access right. Thankfully no one but Administrators have this right by default - though one could consider it a flaw in the Win32 API to not let a process lower its own priority without it.

SDI Main Window

ppathan14-Jul-03 5:20

ppathan

14-Jul-03 5:20

Is there any way that the main window of SDI is always maximised?
Currently, I have to click the maximize button to make it full size.

Shay Harel14-Jul-03 5:53

14-Jul-03 5:53

When you create it,
Use WS_MAXIMIZE on the flags

ppathan14-Jul-03 7:31

ppathan

14-Jul-03 7:31

can u provide me with exact syntax?
I tried to create it but it didn't work

Shay Harel14-Jul-03 7:36

14-Jul-03 7:36

Go to the OnCreate function of your main window, and at the end of the function add this line:

code>ShowWindow (SW_MAXIMIZE);<

David Crow14-Jul-03 7:57

David Crow

14-Jul-03 7:57

Sans the HTML tags, of course! Blush | :O

Shay Harel14-Jul-03 8:04

typedef rants and uses ...

14-Jul-03 8:04

doooooooooouuuuuuuhhhhhhhh !!!!!

But you got the main point

Maximilien14-Jul-03 5:10

Maximilien

14-Jul-03 5:10

What's the use of typedefing basic types ?

I'm reviewing some old C code, and there's a lot of typedef like

typedef  float *FloatPtr;<br />
typedef  float **FloatPtr2D;<br />
typedef  float ***FloatPtr3D;<br />
typedef  float ****FloatPtr4D;<br />
<br />
typedef  unsigned int UInt;<br />
typedef  unsigned int *UIntPtr;<br />
<br />
typedef  int *IntPtr;<br />
typedef  int **IntPtr2D;<br />
typedef  int ***IntPtr3D;

and some other variants of the same things; and it's all mixed up in the code, sometimes, declaration use a typedef, but the definition use the full type.

If I need to typedef some basic types to be used all around the application to follow a code guideline, is there a standard way of doing this, in C++ preferable ?

Maximilien Lincourt
"Never underestimate the bandwidth of a station wagon filled with backup tapes." (from /.)

Re: typedef rants and uses ...

jhwurmbach14-Jul-03 5:29

jhwurmbach

14-Jul-03 5:29

Maximilien wrote:
typedef unsigned int UInt;
typedef unsigned int *UIntPtr;

Now you can write UIntPtr instead of unsigned int*.
Typedefing like this saves a few keystrokes.
Even Microsoft does it: you van write UINT for 'unsigned int' or BOOL for int.

My opinions may have changed, but not the fact that I am right.

WH_MOUSE_LL

Gleb14-Jul-03 4:30

Gleb

14-Jul-03 4:30

Hi.
I've set a low level mouse and keyboard hooks in my DLL , but for some reason
it slowers my mouse movement ( almost impossible to move ).
Does anyone knows what the problem might be?
Thanks.

Duncan Edwards Jones14-Jul-03 4:35

Duncan Edwards Jones

14-Jul-03 4:35

You're not trying to do anything with the mouse (like move it or click it) in the processing of the hook event, are you? ... in fact, could you post what you are trying to do in the hook code?

'--8<------------------------
Ex Datis:
Duncan Jones
Merrion Computing Ltd

Gleb14-Jul-03 20:34

Gleb

14-Jul-03 20:34

Hi.
No, I'm not trying to move it or anything else.
I just set the hook , and that's it.
Any ideas?
Thanks.

Ryan Binns14-Jul-03 4:44

Ryan Binns

14-Jul-03 4:44

This is a documented side-effect of installing system-wide hooks. It's both expected and unavoidable.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

Gleb14-Jul-03 20:33

Gleb

14-Jul-03 20:33

Hi.
Can you tell me where is it documented please?
Thanks.