Re: Allocating very large memory - C / C++ / MFC Discussion Boards

How to load bitmap, which is located in Access, on a FormView (MFC)

chinook7517-May-05 3:43

17-May-05 3:43

I've tried to load the bitmap, which is already located in Access, to a picture loadbox on a FormView.
The process is that when I click a next button from a tool bar, the person's info. is changed.
When the program is run, the picture of the first person's image is loaded but not all people.

I wanna know DIB Funtion but all sources are based on API(Actually I am a real beginner.)
I've searched some books but the book explains just basic DIB process and just basic DB access.
Appreciate your advice that which Funtion prefer to.
Especially, what kind of process will be the best to get the bitmap image from the Access to the FormView.

Simple source will be more helpful.

Thanks and regards,

Getting command line parameters of a running process

rocky_pulley17-May-05 3:36

rocky_pulley

17-May-05 3:36

I'm trying to get the command line parameters of a running process. Does anyone know how to do this? I know I can set a windows hook with WH_SHELL, but I would like to be able to do it on the fly instead of having my application started before the processes I'm trying to view.

-- Rocky Dean Pulley

Re: Getting command line parameters of a running process

«_Superman_»17-May-05 4:26

«_Superman_»

17-May-05 4:26

You could use the GetCommandLine API.
Put this API in a function and run the function remotely using CreateRemoteThread.

« Superman »

Re: Getting command line parameters of a running process

rocky_pulley17-May-05 4:41

rocky_pulley

17-May-05 4:41

Thanks, that's what I'm about to try. I was hoping there was a way to do it without injecting anything but this will do I think.

Thanks,
-- Rocky

-- Rocky Dean Pulley

Re: Getting command line parameters of a running process

David Crow17-May-05 5:53

David Crow

17-May-05 5:53

The fourth parameter to CreateRemoteThread() is the starting point of the new thread. How do you go about getting that starting point (i.e., function) into the other process?

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Getting command line parameters of a running process

David Crow17-May-05 4:43

David Crow

17-May-05 4:43

rocky_pulley wrote:
I'm trying to get the command line parameters of a running process.

See here.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Allocating very large memory

Orkun GEDiK17-May-05 3:35

Orkun GEDiK

17-May-05 3:35

Hello,

I am facing with a problem while trying to allocate very large memory by AWE APIs on Windows 2003 Advanced Server. I developed following code in order to allocate large memory portion, but I couldn't allocate it;

#include "stdafx.h"
#define _WIN32_WINNT 0x0500
#include <windows.h>
#include <stdio.h>
#define MEM_ALLOC 1024 * 1024 * 1024 * 4 // allocate physical memory

int _tmain(int argc, _TCHAR* argv[])
{
struct {
DWORD count;
LUID_AND_ATTRIBUTES privilege[1];
} info;

HANDLE token=0x0;
BOOL result=FALSE;
int iPageCount=0x0;
int PFNarraysize=0x0;
ULONG_PTR NumberOfPages=0x0;
ULONG_PTR* PFNarraylist=0x0;
SYSTEM_INFO sys_info;
PVOID lpMemoryWindow=0x0;

// get system page size
GetSystemInfo(&sys_info);

// calculate how many pages required
iPageCount = MEM_ALLOC / sys_info.dwPageSize;

// PFN requested size
PFNarraysize = iPageCount * sizeof(ULONG_PTR);

// allocate array for PFN array
PFNarraylist = (ULONG_PTR*)HeapAlloc(GetProcessHeap(), 0, PFNarraysize);

// ------------------------------------------------------------- //
// check user privileges in order to lock memory on the system
result = OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES, &token);
// set privilege attributes
info.privilege[0].Attributes = SE_PRIVILEGE_ENABLED;
// lookup user privileges
result = LookupPrivilegeValue(NULL, SE_LOCK_MEMORY_NAME, &(info.privilege[0].Luid));
// info count
info.count=0x1;
// retrieve user privilege
result = AdjustTokenPrivileges(token, FALSE, (PTOKEN_PRIVILEGES)&info, 0, NULL, NULL);
// close token handle
CloseHandle(token);
// ------------------------------------------------------------- //

// create memory window
lpMemoryWindow=VirtualAlloc(NULL, MEM_ALLOC, MEM_RESERVE | MEM_PHYSICAL, PAGE_READWRITE);
NumberOfPages = iPageCount;

// allocate physical memory - I
result = AllocateUserPhysicalPages(GetCurrentProcess(), &NumberOfPages, PFNarraylist);

// map user physical page to the window - I
result = MapUserPhysicalPages(lpMemoryWindow, iPageCount, PFNarraylist);

// use memory
lstrcpy((LPSTR)lpMemoryWindow, TEXT("OGED"));
}

In the example that I wrote above can allocate 2 gb or less memory but not more and I am sure that I have 16 Gb physical memory.

How can I allocate and use more than 4 Gb memory? Can anybody give an example about AWE?

PS: I am aware about MSDN AWE and MSDJ - 99 examples, but they are not a solution for my case.

Regards,

Orkun GEDiK
SAP R/3 Software & System Support Specialist
ASTRON

Re: Allocating very large memory

James R. Twine17-May-05 3:41

James R. Twine

17-May-05 3:41

You do not say it or not, but are you booting with the /PAE switch? You need it to enable applications to address at and above 4GB. Normally, you can only address 2GB unless you booted with the /3GB switch.

Peace!

-=- James

If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Tip for new SUV drivers: Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
DeleteFXPFiles & CheckFavorites (Please rate this post!)

Re: Allocating very large memory

Orkun GEDiK17-May-05 8:26

Orkun GEDiK

17-May-05 8:26

Hello,

Sorry, I forgot to say that, "I am using /PAE switch already".

Regards,

Orkun GEDiK
SAP R/3 Software & System Support Specialist
ASTRON

Property Pages and CTreeCtrl Updates

jamesrgoodwin17-May-05 3:19

jamesrgoodwin

17-May-05 3:19

Codeguru,

I have a property sheet, which contains a nmber of property pages. One of the pages contains a CTreeCtrl.

The tree control is used to display a list of items with tick boxes. The list of items never changes, however the ticks next to then respond to changes in the document structure.

I use OnInitDialog to create the list of elements using InsertItem and also log the handles for later use.

I then use OnSetActive to record each time the user clicks the page and update the tick boxes using SetCheck and the recorded handles from OnInitDialog.

My problem:...

The property page has to be shown twice, first the items appear and second the tick boxes are correct. Thereafter everything works fine.

I'm presuming this is because the inserted items have not been activated until after the page is made visible? Therefore SetCheck doesn't do anything on the first pass. But I've tried to resolve this with a call the the property sheet to call another page, using SetActivePage(*), then reactivating the current one. However, this doesn't work. Also tried various update calls inbetween OnInitDialog and OnSetActive, but to no avail.

Any ideas what I'm doing wrong? The help would be very much appreciated Smile | :)

James

Re: Property Pages and CTreeCtrl Updates

Jack Puppy17-May-05 4:11

Jack Puppy

17-May-05 4:11

I remembered dealing with a quirky problem involving CTreeCtrl checkboxes. I checked some code in an old project, and found this:

<br />
// FIX: "If you want to use this style, you must set the TVS_CHECKBOXES style<br />
// with SetWindowLong after you create the treeview control, and before<br />
// you populate the tree. Otherwise, the checkboxes might appear<br />
// unchecked, depending on timing issues."<br />
<br />
// Remove the checkboxes style on the tree control, then explicitly set it<br />
m_treeCtrl.ModifyStyle(TVS_CHECKBOXES, 0);<br />
m_treeCtrl.ModifyStyle(0, TVS_CHECKBOXES);<br />

The fix came via the one of the newsgroups. I don't know if it will help your problem, but it's worth a shot.

Pssst. You see that little light on your monitor? That's actually a government installed spy camera. Smile and wave to big brother!

Re: Property Pages and CTreeCtrl Updates

jamesrgoodwin17-May-05 4:24

jamesrgoodwin

17-May-05 4:24

Thankyou, thankyou, thankyou!!!!

As I expected, a random bug with a very random solution.

But it works Smile | :)

Regarding the value that appears in the first two bytes of a bmp image

MoQuisha17-May-05 2:22

MoQuisha

17-May-05 2:22

Please tell me that why does the first two bytes of a Bitmap image is being shown as '19778' which is equal to '4D42H' in VC environent.
whereas in theory it is to be 'BM' which is '424DH' in the bitmap image.

MoQuisha

Re: Regarding the value that appears in the first two bytes of a bmp image

Priyank Bolia17-May-05 2:27

Priyank Bolia

17-May-05 2:27

Ascii Code of 'B' = 0x42
Ascii Code of 'M' = 0x4D
'BM' is the signature of the bitmap file, it helps the image viewers to identify that this file is a bitmap file. If you rename a text file and make its extension .bmp than it does not mean that it is a windows bitmap file.

http://www.priyank.in/

Re: Regarding the value that appears in the first two bytes of a bmp image

Bob Stanneveld17-May-05 2:42

Bob Stanneveld

17-May-05 2:42

Hello,

It has something to do with the way data is stored in the memory of the computer. This problem is also known as the NUXI problem.

Read this[^] for more information about the problem.

I also got the blogging virus..[^]

Re: Regarding the value that appears in the first two bytes of a bmp image

C^hris L^osinger17-May-05 7:17

C^hris L^osinger

17-May-05 7:17

4d42(hex) = 19778(decimal)

Cleek | Image Toolkits | Thumbnail maker

#define ??

Bob Stanneveld17-May-05 2:18

Bob Stanneveld

17-May-05 2:18

Hello,

I have the following code:

<br />
#define A_THING(ARG) \<br />
#  define ANOTHER_THING const ARG \<br />
// more defines<br />

When I compile the code, I get the following error: "error C2162: expected macro formal parameter"

The following code does not produce errors:

<br />
#define A_THING() \<br />
#  define ANOTHER_THING const ARG<br />

The most weird part is, that I don't even use the first macro in the code. If I use it, I get the same errors...

I also got the blogging virus..[^]

Re: #define ??

toxcct17-May-05 2:21

toxcct

17-May-05 2:21

cool...

what is the question ? WTF | :WTF:

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: #define ??

Bob Stanneveld17-May-05 2:23

Bob Stanneveld

17-May-05 2:23

Wow that was fast, I pressed "TAB" and "ENTER" a little bit to fast after each other. I completed the post now... Laugh | :laugh:

I also got the blogging virus..[^]

Re: #define ??

ThatsAlok17-May-05 2:23

ThatsAlok

17-May-05 2:23

Bob Stanneveld wrote:
I have the following code:

#define A_THING(ARG)

Then Where is the Problem Bob!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Re: #define ??

Bob Stanneveld17-May-05 2:24

Bob Stanneveld

17-May-05 2:24

Hello,

The problem was that I accidently pressed "TAB" before I pressed "ENTER". I completed the message now.

I also got the blogging virus..[^]

Almost solved!

Bob Stanneveld17-May-05 2:59

Bob Stanneveld

17-May-05 2:59

I have found the source of my problem. This is that the '#' symbol is used inside macros to make a string of an argument. For example:

<br />
#define TO_STRING(arg) #arg<br />
<br />
// somewhere in code<br />
TO_STRING(This is a string) // becomes "This is a string"<br />

So the compiler looks for an argument named 'define', but cannot find it, thus issuing an error. Is there any way that I can work around this problem?

Thanks in advance

I also got the blogging virus..[^]

Re: #define ??

Tim Smith17-May-05 3:20

Tim Smith

17-May-05 3:20

Don't do the line continuations. To the preprocessor, it sees:

#define A_THING(ARG) # define ANOTHER_THING const ARG \....

Tim Smith

I'm going to patent thought. I have yet to see any prior art.

User script or other technique?

lynchspawn17-May-05 2:14

lynchspawn

17-May-05 2:14

I'm working on a program that I'd like to be open to customization by the user. It will generate messages (to be sent over Ethernet or serial ports) and allow the user to specify a set of rules to follow when doing so. I'd like the user to be able to create a list of steps to take and also allow the user to create loops and test conditions (if, else, ...).

For now, I'm hardcoding task types but it would be nice if I could allow the user to write a script that my software could understand and follow instead of forcing the user to use my pre-built task types.

I know it's not going to be easy or quick but I'd still like to look into it further. Does anyone know where I might find information on doing something like this? Would it be possible to use an existing scripting language (PERL or other)?

Thanks for any info you might have on this.

Re: User script or other technique?

Blake Miller17-May-05 5:05

Blake Miller

17-May-05 5:05

The older "Visual BASIC for Applications" possibly Unsure | :~

Or try this msdn.microsoft.com/scripting

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.