Re: Model less dialog - C / C++ / MFC Discussion Boards

rajapp3-Sep-09 20:59

3-Sep-09 20:59

hi,
I am working on a PTZ camera, and successfully accessed the pan/tilt/up/down..zoom/focus and iris features.
now i am stuckup with the query commands and response.
protocol is pelco D and i want to send the query pan position(0x51) to the camera and the camera have to respond me back with
query pan position response(0x59)... if anybody worked on these stuffs please help me...

Re: help needed for PTZ control

hkaratoy24-Nov-09 4:23

hkaratoy

24-Nov-09 4:23

Hey rajapp,

If you find any solution please share it with us because we have same problem as you....

if you contact please send mesaage to "hkaratoy@gmail.com"

Re: help needed for PTZ control

sidxavier11-May-10 11:30

sidxavier1

1-May-10 11:30

hey ppl were any of you able to solve this problem?? i am stuck too Frown | :(

Model less dialog

MsmVc3-Sep-09 20:46

MsmVc

3-Sep-09 20:46

Hi All
I am gatting problem to destroy Model less dialog.
I have a Dialog A and insert dialog B(Model less dialog).I dialog A call model less dialog like this

CDialogB* m_modell

(In Dialog A cpp class).Create model less dialog in Dialog A cpp class like this

m_modell= new CDialogB(this);
m_modell-&gt;Create(CDialogB::IDD,this);

Now i have a thread WorkerThreadProc.In the WorkerThreadProc i use to show model less dialog

m_modell->ShowWindow(SW_SHOW);

It's working fine but how i destory model less dialog.
plz help me

Re: Model less dialog

Randor 3-Sep-09 20:50

Randor

3-Sep-09 20:50

INFO: Creating a Modeless Dialog Box with MFC Libraries[^]

Best Wishes,
-David Delaune

Re: Model less dialog

MsmVc3-Sep-09 21:00

MsmVc

3-Sep-09 21:00

thank for reply but try to understand my problem.
I know how to create but i have a problem to destroywindow(Model less dialog).

Re: Model less dialog

Randor 3-Sep-09 21:07

Randor

3-Sep-09 21:07

MsmVc wrote:
I know how to create but i have a problem to destroywindow

The link I provided shows how to properly destroy the modeless dialog. Have you tried it?

Best Wishes,
-David Delaune

Re: Model less dialog

MsmVc3-Sep-09 21:27

MsmVc

3-Sep-09 21:27

yes i try this.
Create Model less dialog in Class Adlg.cpp

m_modell= new CDialogB(this);
m_modell->Create(CDialogB::IDD,this);

Show Model less dialog in thread

m_modell->ShowWindow(SW_SHOW);

Try to delete or destroy in Class Adlg.cpp then it's working.

m_modell->DestroyWindow();

But how to destroy in thread.It's not working in thread.
Plz help me

Re: Model less dialog

Cedric Moonen3-Sep-09 21:32

Cedric Moonen

3-Sep-09 21:32

MsmVc wrote:
But how to destroy in thread.It's not working in thread.

Don't do it that way. Never touch anything from the UI from within a thread, this is a recipe for disaster. Instead, post a custom message to your UI informing it that it needs to close the dialog.
Check this article[^] for more information about thread (a must read for everybody starting to work with threads).

Cédric Moonen
Software developer

Charting control [v2.0]
OpenGL game tutorial in C++

Re: Model less dialog

Randor 3-Sep-09 22:04

Randor

3-Sep-09 22:04

If you have followed the instructions in the article then you can use PostMessage to close to your modeless dialog.

::PostMessage(m_modell->m_hWnd,WM_COMMAND,MAKEWPARAM(IDCANCEL, BN_CLICKED),0);

Make sure that you have added the WM_POSTNCDESTROY handler and override OnCancel just like in the Help and Support article.

Best Wishes,
-David Delaune

String table

choramale_vs3-Sep-09 20:43

choramale_vs

3-Sep-09 20:43

Hi,
We need to extract strings from a .EXE file. What are ways to do that?

Re: String table

«_Superman_»3-Sep-09 20:55

«_Superman_»

3-Sep-09 20:55

Use LoadLibrary[^] to load the EXE.
Call LoadString[^] and pass the handle returned by LoadLibrary as the first parameter.

«_Superman_»
I love work. It gives me something to do between weekends.

Re: String table

choramale_vs3-Sep-09 21:52

choramale_vs

3-Sep-09 21:52

Thanks for the reply.
We have tried these functions but loadstring function requires the string ID. How do we find that? Can you provide any links which have the sample code?

Re: String table

Michael Schubert3-Sep-09 22:19

Michael Schubert

3-Sep-09 22:19

You have to enumerate the resource types and their names (IDs):

EnumResourceTypes()<br />
EnumResourceNames()

Edit: See here:
http://msdn.microsoft.com/en-us/library/ms648008%28VS.85%29.aspx#_win32_Creating_a_Resource_List[^]

Re: String table

Randor 3-Sep-09 20:57

Randor

3-Sep-09 20:57

Manipulate String Resources in an Executable[^]

Best Wishes,
-David Delaune

Re: String table

choramale_vs3-Sep-09 22:04

choramale_vs

3-Sep-09 22:04

Thanks,
Stablupd.exe is already available for this but,
We want to make project that will fetch string from EXE.
Can you help us regarding this?

Re: String table

iraclyKv3-Sep-09 22:29

iraclyKv

3-Sep-09 22:29

If you need to get all strings from executable, than You need dothis:
HMODULE some = LoadLibrary("mylib.dll")
and than
EnumResourceNames(some, RT_STRING, MyStringCB, NULL);

Please note that every string resource is actually a block of 16 unicode strings. So You have 2 options there:
a) interpret RT_STRING by yourself
b) compute 16 string ID's (nStringIDfirst = (nBlockID- 1) * 16;) and call LoadString() 16 times:

BOOL CALLBACK MyStringCB(HMODULE some_library,
                         LPCTSTR resource_type,
                         LPTSTR resource_name,
                         LONG_PTR aux_param)
{
  DWORD startId = ((DWORD)resource_name - 1) * 16;
  DWORD i, endId = startId + 16;
  for (i = startId ; i < endId; ++i)
  {
    LoadString(some_library, i, ...)
    ...
  }
  return TRUE;
}

Re: String table

choramale_vs4-Sep-09 0:14

choramale_vs

4-Sep-09 0:14

Can you please explain the various parameters of MyStringCB in more detail.
Loadlibrary is working properly but, We have problem in the EnumResourceNames.
Thanks.

Re: String table

David Crow4-Sep-09 2:22

David Crow

4-Sep-09 2:22

choramale_vs wrote:
Can you please explain the various parameters of MyStringCB in more detail.

See here.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

Re: String table

iraclyKv4-Sep-09 3:54

iraclyKv

4-Sep-09 3:54

Parameters of MyStringCB is obvious, refer MSDN: EnumResNameProc Function.
some_library - handle to library we load
resource_type - resource type, will always be RT_STRING in our case
resource_name - resource identifier (either string name or numerical)
aux_param - optional auxiliary parameter specified in call to EnumResourceNames, in my sample it is not used.

The first trick is with resource_name. You can check for strings it always integer (try ASSERT(IS_INTRESOURCE(resource_name)); ).
'INTRESOURCE' is not a real pointer, it's an integer (refer MSDN: IS_INTRESOURCE) and we reinterpret is a WORD (or DWORD, in all cases it have only 16 significant bits).
The second issue - is RT_STRING resource itself not a string, this is a block of 16 strings! This why we generate 16 ID's and load strings with LoadString() API

PS: Your task is to load/list all strings in string resources, not to find all strings in code of application (like Process Explorer of Mark Russinovich or other hackers tool)?

Re: String table

choramale_vs6-Sep-09 23:59

choramale_vs

6-Sep-09 23:59

I have some strings in my program. Does these strings goes into string table of exe?
can i use string name as resource_name?

Crash in GetMessage method of windows.

Kundan Kumar Bharti3-Sep-09 19:47

Kundan Kumar Bharti

3-Sep-09 19:47

Hi,

I got crash once in GetMessage method while calling that method in message loop. I am doing some simple opertion with win32 coding and try to get the message form message queue of windows and it got crash. Can anybody help me to find out the possible reason behind this crash with fixes. The crash has been seen on XP 32 bit machine.

Re: Crash in GetMessage method of windows.

Cedric Moonen3-Sep-09 20:13

Cedric Moonen

3-Sep-09 20:13

Kundan Kumar Bharti wrote:
Can anybody help me to find out the possible reason behind this crash with fixes.

Without any code neither the exact error message, this will be very difficult. We still can't read mind, you know...

So, please post the code snippet where the crash occurs (make sure you read point 7 here[^] before posting). Post also the exact error message of the crash.

Cédric Moonen
Software developer

Charting control [v2.0]
OpenGL game tutorial in C++

Find UpDown Control in a dialog box

Bedke3-Sep-09 18:56

Bedke

3-Sep-09 18:56

I have a dialog box popping up, which contains a updown control.

I need to set and get the values of its buddy control through my c++ program.

Basically i am automating it.

Please could some one help me.

Re: Find UpDown Control in a dialog box

«_Superman_»3-Sep-09 19:26

«_Superman_»

3-Sep-09 19:26

Use FindWindowEx[^] to find the updown control in the dialog.
Type cast the CWnd* of the control to a CSpinButtonCtrl* and call CSpinButtonCtrl::GetBuddy[^] to get a pointer to the buddy window.
You can then use GetWindowText[^] and SetWindowText[^] to get and set the value of the buddy control respectively.

«_Superman_»
I love work. It gives me something to do between weekends.

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