C / C++ / MFC

Re: Allowing a control to receive mouse clicks while a modal dialog is up.

8-Sep-09 23:30

In the DialogBox() or DialogBoxParam() call set hWndParent to NULL: this creates an 'unowned' dialog, which decouples it somewhat from your main window. Also set EXSTYLE WS_EX_TOPMOST in your dialog resource definition: this will keep the dialog on top of all other windows. You should then be able to click a button on the main window. You will probably also need to disable all the controls on the main window except the one allowed one if the dialog is active.

Code-o-mat9-Sep-09 0:37

Code-o-mat

9-Sep-09 0:37

Thank you for your suggestion but this seems to be the same thing as the first possible solution i described in my post which i don't want to use. Correct me if i am missing something obvious here.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Sometimes you just have to hate coding to do it well. <

Re: Allowing a control to receive mouse clicks while a modal dialog is up.

Richard MacCutchan9-Sep-09 2:44

Re: Allowing a control to receive mouse clicks while a modal dialog is up.

9-Sep-09 2:44

Code-o-mat wrote:
Correct me if i am missing something obvious here.

Nothing I can think of, but I still think that the effort required to achieve what you are suggesting is not worth it.

Ragha Venkat11-Sep-09 0:44

Ragha Venkat

11-Sep-09 0:44

don't know whether i am on the right track.. when you click outside a modal dialog the message it is posting will be 0x118.. with wParam 0xfff8 by handling that you can check for your mouse pointer position and check whether it is the area where the component fall in the parent. You don't have to wait for a click on the button but for the mouse click on that area you can trigger that function.. I think i am clear.

urs,
Raghavendran.V.

Raghavendran V
CDAC

Re: Allowing a control to receive mouse clicks while a modal dialog is up.

Richard MacCutchan11-Sep-09 1:07

how to write a programme in V C++ the display on the screen like this???

11-Sep-09 1:07

Ragha Venkat wrote:
when you click outside a modal dialog the message it is posting will be 0x118.. with wParam 0xfff8

I don't think this is quite true, the messages posted on a mouse click are dependent on where the mouse is positioned: a menu item, button, task bar etc.

This will not provide consistent or reliable results. If this click happens to be on another open window, then that window will be given the focus and receive the message. This is a very unsafe way to handle messages; if you bypass the rules prescribed by Microsoft, then you must be prepared to accept that it may not work as you wish.

mr bard28-Sep-09 21:41

mr bard2

8-Sep-09 21:41

http://lookpic.com/i/990/Q8s8GvYz.jpeg[^]

i want to do a programming using visual C++..
firstly...the key that input was S,D,F,J,K,L...how can i set the input from keyboard...
example like> if i push the input from keyboard letter SDF is for image 1, S for image 2,SDFJKL for image 3 or etc...

example>the sentences was

'saya suka makan'

s=image 1
a=image 2
y=image 3
a=image 1

s=image1
u=image 4
k=image 5
a=image 2

m=image7
a=image 2
k=image 5
a=image 2
n=image 8

display look like,

image 1,image2,image3,image1 ,image 0,image1,image 4,image5,image6,image0,image7,image2,image5,image2,image8

*image 0 for the space.

i wanted to put just 20 image on row...every time finish, i can reset the image...

Re: how to write a programme in V C++ the display on the screen like this???

Richard MacCutchan8-Sep-09 23:17

Re: how to write a programme in V C++ the display on the screen like this???

8-Sep-09 23:17

Please do not repeat the same question - see here for guidelines on how to get an answer. If no-one answers the question it may be because there is no answer.

Adam Roderick J8-Sep-09 23:28

Adam Roderick J

8-Sep-09 23:28

I didnt get your exact need but still i think you are looking for something mentioned
below:-
Before i answer i have small doubt regarding the type of applicaiton.
so a question.

Whether your application is SDI application with CEditView or

From assumption

If it is CEditView then override OnChar(UINT nChar, UINT nRepCnt, UINT nFlags) function of CView by choosing WM_CHAR from classwizard.
And simply check the character with nChar value.
if it is "s" then simply load the bitmap corresponding to it, but i think CRichEdit will support Bitmap loading.

If Edit box(CEditCtrl) then
Firstly override the PreTranslateMessage of Dialog and
you can use the below code if only one edit box else
get the position to to get the exact edit box before checking for the message WM_CHAR.

BOOL CYourDlg::PreTranslateMessage(MSG* pMsg)
{
if( WM_CHAR == pMsg->message )
{
AfxMessageBox( "sa" );
}
return CDialog::PreTranslateMessage(pMsg);
}

Величие не Бога может быть недооценена.

modified on Wednesday, September 9, 2009 5:39 AM

requestion create an instance of Command [modified]

MsmVc8-Sep-09 21:30

MsmVc

8-Sep-09 21:30

Hi all

sorry but i post re-question becouse i havn't got any reply and i need help from form.I am useing ODBC 5.1 Driver for connect to MySQL.It's working fine for XP OS.I am getting error on Window Server 2000.on server 2000 OS i am able to connect but after connection i am getting error.

CString por="Driver={MySQL ODBC 5.1 Driver};";
	CString Database="Database="";";
	CString User="User=";
	CString Userp=root;
	CString password=";Password=";
	CString Passwords=root;
	CString option=";Option=3;";
	CString final=por;
	final +=Database;
	final +=User;
	final +=Userp;
	final +=password;
	final +=Passwords;
	final +=option;
	
	CoInitialize (NULL);
		
	_bstr_t strCon(final);

	try	
	{
		HRESULT hr = m_pConn.CreateInstance (__uuidof (Connection));

		if (FAILED (hr))
		{
			
		}
		
		if (FAILED (m_pConn->Open (strCon,bstrString,bstrString1,0)))
		{
			AfxMessageBox ("Can't open datasource");
		}
		
		else
		{
			MessageBox("There is an error to connect with MySQL. Please check your input parameters or server configuration.","Message",MB_ICONEXCLAMATION);
			return;
		}
		
			AfxMessageBox ("Connection successfully");	
		
			_CommandPtr pCommand;
			hr = pCommand.CreateInstance (__uuidof (Command));
"Erro showing here"
		if (FAILED (hr))
		{
			AfxMessageBox ("Can't create an instance of Command");
			return;
		}
			::_RecordsetPtr pRecordset;
			
			pCommand->ActiveConnection = m_pConn;

Plz helpe me.

modified on Wednesday, September 9, 2009 3:47 AM

CPallini8-Sep-09 21:38

CPallini

8-Sep-09 21:38

Please use the code block button when posting code snippets.
Whenever a COM error happens, the HRESULT return value is quite informative, please report it.
Smile | :)

David Crow9-Sep-09 3:23

David Crow

9-Sep-09 3:23

MsmVc wrote:
on server 2000 OS i am able to connect but after connection i am getting error.

So what's the error?

"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

Stuart Dootson9-Sep-09 3:31

Stuart Dootson

9-Sep-09 3:31

What is the error you're getting?!

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Kill Process using DebugActiveProcess.

MsmVc10-Sep-09 18:49

MsmVc

10-Sep-09 18:49

Errot is

Can't create an instance of Command

gothic_coder8-Sep-09 20:55

gothic_coder

8-Sep-09 20:55

Hello all.

I want to kill the process using DebugActiveProcess.. I read somewhere that to kill the debugee process or target process i need to terminate the Debug object.. Can anyone clarify that? How do i do that?

Thanks.

Re: Kill Process using DebugActiveProcess.

gothic_coder9-Sep-09 3:08

gothic_coder

9-Sep-09 3:08

I'm doing something like this.

#define DEBUG_KILL_PROCESS_ON_EXIT	0x1 
#define OBJ_KERNEL_HANDLE			0x00000200L
#define OBJ_CASE_INSENSITIVE		0x00000040L
#define OBJECT_ALL_ACCESS			(STANDARD_RIGHTS_REQUIRED | 0x1)


if(strcmp(Proc_Argument, "-debug") == 0)
{
	OBJECT_ATTRIBUTES	objAttr;
			
	objAttr.Length = sizeof(OBJECT_ATTRIBUTES);
	objAttr.RootDirectory = NULL;
	objAttr.Attributes = OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE;
	objAttr.ObjectName = NULL;
	objAttr.SecurityDescriptor = NULL;
	objAttr.SecurityQualityOfService = NULL;

	HMODULE hDebugObject = NULL;
	HANDLE MyDebugHandle = NULL;
			
	HANDLE hProc = MyOpenProcess(PROCESS_SUSPEND_RESUME,FALSE, dwID);
			
	typedef NTSTATUS (WINAPI *_NtCreateDebugObject)(OUT PHANDLE DebugHandle,
                 				IN ACCESS_MASK DesiredAccess,
						IN POBJECT_ATTRIBUTES ObjectAttributes,
						IN ULONG Flags);

				 
	_NtCreateDebugObject Debug_Object;


			
	typedef NTSTATUS (WINAPI *_NtDebugActiveProcess)(IN HANDLE ProcessHandle,
						IN HANDLE DebugHandle);

	_NtDebugActiveProcess Debug_Process = NULL;


	hDebugObject = GetModuleHandle("ntdll.dll");

	if(hDebugObject == INVALID_HANDLE_VALUE || hDebugObject == NULL)
	{
		hDebugObject = LoadLibrary("ntdll.dll");
		if(hDebugObject == INVALID_HANDLE_VALUE || hDebugObject == NULL)
		{
			MessageBox(NULL, "Cannot Load NtDll.dll", "Error", MB_OK);
					
		}
	}

	Debug_Object = (_NtCreateDebugObject)GetProcAddress(hDebugObject, "NtCreateDebugObject");
	Debug_Process = (_NtDebugActiveProcess)GetProcAddress(hDebugObject, "NtDebugActiveProcess");


	NTSTATUS nStatus = Debug_Object(&MyDebugHandle,
								OBJECT_ALL_ACCESS,
								&objAttr,
								DEBUG_KILL_PROCESS_ON_EXIT);
	
        DWORD err = GetLastError();

	if(nStatus != STATUS_SUCCESS)
	{
		MessageBox(NULL, "Fail to create object", "Error", MB_OK)
		return FALSE;
	}

	NTSTATUS nStatusProc = Debug_Process(hWnd, MyDebugHandle);

        //This does not attch the process... Don't know what's the problem..
		
	err = GetLastError();
			
	if(nStatusProc != STATUS_SUCCESS)
	{
                
		MessageBox(NULL, "Cannot Attach Processl", "Error", MB_OK)
		return FALSE;
	}
			
	CloseHandle(MyDebugHandle);

}

Also the error after Debug_Process comes out to be 299 i.e "Only part of a ReadProcessMemory or WriteProcessMemory request was completed."...

libraries, headers (.h) in C language [modified]

programmer2028-Sep-09 20:45

programmer202

8-Sep-09 20:45

Hello to everyone,

Does anyone know any document (downloadable from internet or any you can attach me in an email) wich deals with topics about libraries, headers (.h),...step by step with examples and all that....

S.O.: Windows
COMPILER: VC++ 2008
LANGUAGE: C
MAIL: programmer202@gmail.com

Thank you!

modified on Wednesday, September 9, 2009 3:27 AM

ThatsAlok8-Sep-09 20:56

ThatsAlok

8-Sep-09 20:56

programmer202 wrote:
LANGUAGE: C
MAIL: programmer202@gmail.com

Dear, which book are you are referencing for learning c++

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You

CPallini8-Sep-09 20:57

CPallini

8-Sep-09 20:57

programmer202 wrote:
Does anyone know any document wich deals with topics about libraries, headers (.h), source code (.c),...step by step with examples and all that....

Yes: any good C programming language book deals with topics such basic as headers and source code.

BTW have you tried to google for [^]?
Smile | :)

Hamid_RT8-Sep-09 21:00

Hamid_RT

8-Sep-09 21:00

What do you need exactly? are you sure you want a book that it contains source codes?

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

ThatsAlok8-Sep-09 21:05

ThatsAlok

8-Sep-09 21:05

Hamid. wrote:
What do you need exactly? are you sure you want a book that it contains source codes?

might be looking for example book Smile | :)

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You

Richard MacCutchan8-Sep-09 23:13

8-Sep-09 23:13

This might be a good place to start.