Problem renaming ADO's EOF [modified] - C / C++ / MFC Discussion Boards

Re: How to use large cursor?

Waldermort24-Nov-06 9:36

Waldermort

24-Nov-06 9:36

Take a look at this[^]. I used depends.exe and it seems that all they do is draw transparent bitmaps.

Call ctor in place of function argument

Mr.Brainley24-Nov-06 2:23

Mr.Brainley

24-Nov-06 2:23

I have this line of code :

TargetList.push_back(CSTREAMS(*(SrcList[i])));

where CSTREAMS is a userdefined class and TargetList is a vector. So i'm just calling the constructor without the new keyword. I think this creates a temporary object, wich is copied by the vector and then destroeyd, so no memoryleak. Is this correct ?

Re: Call ctor in place of function argument

CPallini24-Nov-06 2:41

CPallini

24-Nov-06 2:41

Yes.

resizing problem in a selfmade MDIChildFrame

Franken24-Nov-06 1:48

Franken

24-Nov-06 1:48

Hi all,

I've written an MFC MDI application where I need an additional child frame to show other aspects of my data. So I derived a class from CMDIChildWnd and created the Icon, Accelerator and Menu. My view for this child frame is derived from CFormView and has a chart control an a button control.

I call/create the child frame by choosing a menu entry as follows:

<br />
void CmyApp::OnAnsichtnewView()<br />
{<br />
	// TODO: Fügen Sie hier Ihren Befehlsbehandlungscode ein.<br />
	CMainFrame *pFrame = STATIC_DOWNCAST(CMainFrame, m_pMainWnd);<br />
	pFrame->CreateNewChild(RUNTIME_CLASS(CmyChildFrm), IDR_myTYPE);<br />
<br />
	CRect cr;<br />
	pFrame->GetActiveFrame()->GetClientRect(cr);<br />
<br />
	CDocument *pDoc = pFrame->GetActiveDocument();<br />
	CRuntimeClass *pRTC = RUNTIME_CLASS(CmyFromView);<br />
	CCreateContext context;<br />
	context.m_pCurrentDoc = pDoc;<br />
	context.m_pNewViewClass = pRTC;<br />
	context.m_pLastView = NULL;<br />
<br />
	pFrame->GetActiveFrame()->CreateView(&context);<br />
}<br />

In my view class I've overwritten the OnSize method as follows:

<br />
void CmyFormView::OnSize(UINT nType, int cx, int cy)<br />
{<br />
	CFormView::OnSize(nType, cx, cy);<br />
<br />
	// TODO: Fügen Sie hier Ihren Meldungsbehandlungscode ein.<br />
	if(m_Chart.GetSafeHwnd() != NULL)<br />
	{<br />
		m_Chart.MoveWindow(0, 0, cx-30, cy);<br />
	        AfxMessageBox("Chart resized");<br />
	}<br />
	if(m_Button.GetSafeHwnd())<br />
        {<br />
		m_Button.MoveWindow(cx-30, 0, 30, 30);<br />
                AfxMessageBox("Button resized");<br />
        }<br />
        AfxMessageBox("Form resized");<br />
}<br />

When I run my programm and do a resize on my new child, I only get a "Form resized" MessageBox. So, obviously m_Chart and m_Button don't get a Hwnd but I don't know why.

Can anybody give me a hint on this?

Thanks,
Frank.

[Off Topic] <pre>

toxcct24-Nov-06 2:13

toxcct

24-Nov-06 2:13

Follow the Forum rule please[^]

You don't know where to start ? ask a good friend

[VisualCalc 3.0][Flags Beginner's Guide]

Re: resizing problem in a selfmade MDIChildFrame

Viorel.24-Nov-06 2:26

Viorel.

24-Nov-06 2:26

It seems your m_Button and m_Chart variables were not associated with child controls. Did you create your child controls with Create member, like m_Button.Create(. . .), or in a different way?

Maybe you should show us more details.

Re: resizing problem in a selfmade MDIChildFrame [modified]

Franken25-Nov-06 1:27

Franken

25-Nov-06 1:27

I used the dialog editor to create the controls. The chart control is an ActiveX control and the button is actually a checkbox control, which behaves like a button. In this editor I also assigned the member variables by a right click on the control and let the framework do the job. So the framework also created the DataExchange

void CmyFormView::DoDataExchange(CDataExchange* pDX)
{
	CFormView::DoDataExchange(pDX);
	DDX_Control(pDX, IDC_TCHART_Chart, m_Chart);
	DDX_Control(pDX, IDC_CHECK_Button, m_Button);
}

I created also another child frame in the same way but assigned it to a DocTemplate so that it starts when the programm start. Here I don't have resizing problems. So maybe I did something wrong in my OnAnsichtnewView part when the user creates the child frame. Maybe I have to pass a handle?

Thanks,
Frank.

-- modified at 7:32 Saturday 25th November, 2006

Problem renaming ADO's EOF [modified]

narayanagvs24-Nov-06 1:29

narayanagvs

24-Nov-06 1:29

Hi,

I have taken an ATL component and imported MSADO15.DLL to include ADO functionality

#import "C:\\Program Files\\Common Files\\System\\ADO\\MSADO15.DLL" rename_namespace("ADOCust") rename("EOF","EndOfFile")
using namespace ADOCust;

I referred to the following link.

http://www.codeproject.com/atl/atl_ado.asp?df=100&forumid=1749&fr=51[^]

The problem Iam facing is when I try to check EndOfFile attribute for the recordset pointer using

VARIANT vartemp;
vartemp.vt = VT_BOOL;
vartemp.boolVal = FALSE;

vartemp.boolVal = pRecordset->EndOfFile;// not getting the value as TRUE even if the recordset pointer is at the end

Is there any problem with renaming EOF to EndOfFile in import statement??
I have all other functionalities working well.

Any suggestions would be helpful.

Thanks

-- modified at 7:45 Friday 24th November, 2006

Today is a gift, that's why it is called the present.

How to export a CDialog derived class from a DLL

NILANKARAJA24-Nov-06 1:26

NILANKARAJA

24-Nov-06 1:26

Hi,

Can someone please tell me how to export a CDialog based class from a MFC extention DLL. I saw tutorials showing how to do that. they work when i build them as they are told to. In the tutorial i found it exports a diffrent class and in that class the dialog box is shown. but it doesn't work in my case.

some one tell me how to export the CDialog class itself Confused | :confused:

with the resource..

Re: How to export a CDialog derived class from a DLL

Mark Salsbery24-Nov-06 6:14

Mark Salsbery

24-Nov-06 6:14

The easiest and safest way is to follow the MFC guidelines - Extension DLLs[^]
The most important things are the initialization of the DLL (AfxInitExtensionModule), the
declaration of your classes (adding AFX_EXT_CLASS), and using the global defines in the app and
DLL projects (_AFXDLL defined in the app, _AFXEXT defined in the DLL).

Mark

KeyBoard HOOK

priyank_ldce24-Nov-06 1:03

priyank_ldce

24-Nov-06 1:03

Hi, I am using WH_KEYBOARD_LL global hook to detect keystrokes in any window. Is there any way to get handle of a window that is related to key stroke or handle of the window in which I am writing? Thanks in advance.

Re: KeyBoard HOOK

CPallini24-Nov-06 1:33

CPallini

24-Nov-06 1:33

I think you can call HWND GetActiveWindow(VOID) inside your HOOK PROC, but I NEVER made a test about it.

Re: KeyBoard HOOK

Rajesh R Subramanian24-Nov-06 2:09

Rajesh R Subramanian

24-Nov-06 2:09

priyank_ldce wrote:
Is there any way to get handle of a window that is related to key stroke or handle of the window in which I am writing?

<br />
GetActiveWindow()<br />
GetForegroundWindow()<br />
GetFocus()<br />

You can use the above for that purpose.

Nobody can give you wiser advice than yourself. - Cicero

EnumDisplaySettings API [modified]

Bala Indian24-Nov-06 0:36

Bala Indian

24-Nov-06 0:36

Hi,
I need to display the available display resolution settings from monitor settigs not from display device driver.

I got the display device settings resolution by using EnumDisplaySettigs function.

Can anyone tell how to get the resolutions from Monitor?

I have tried to get Monitor Name from EnumDisplayDevices(API) and passed the same to EnumDisplaySettigns. Not Working|

awaiting your replies.

-- modified at 7:21 Friday 24th November, 2006

Balamurugan

Re: EnumDisplaySettings API

Rajesh R Subramanian24-Nov-06 2:16

Rajesh R Subramanian

24-Nov-06 2:16

Pick your article[^] of choice.

Nobody can give you wiser advice than yourself. - Cicero

Re: EnumDisplaySettings API

Bala Indian26-Nov-06 18:59

Bala Indian

26-Nov-06 18:59

Hi,
The following code is not giving expected result for me.

I need display resolutions from the current monitor settings not from display device.

Problem is dispCurrent.DeviceName is not taken by the EnumDisplaySettings API.

Please tell me where i am going wrong.

int displayNumber=0;
DISPLAY_DEVICE dispDev, dispCurrent;
memset(&dispDev, 0, sizeof(dispDev));
memset(&dispCurrent, 0, sizeof(dispCurrent));
dispDev.cb = sizeof(DISPLAY_DEVICE);
dispCurrent.cb = sizeof(DISPLAY_DEVICE);
EnumDisplayDevices(NULL, displayNumber, &dispDev, 0);
while (EnumDisplayDevices(dispDev.DeviceName,displayNumber,&dispCurrent,0))
{
displayNumber++;
CString MonName = dispCurrent.DeviceName;
if ( (dispCurrent.StateFlags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP) == DISPLAY_DEVICE_ATTACHED_TO_DESKTOP)
{
// Get all modes and display them in a listbox
BOOL bRetVal;
CString sDevMode;
CString sDevModeCurr;
CString strRep = "x";
DEVMODE devmode;
DEVMODE devmodeCurr;
DWORD iMode =0;

do
{
bRetVal = EnumDisplaySettings((LPCTSTR)dispCurrent.DeviceName, iMode, &devmode);
iMode++;
if (bRetVal)
{
sDevMode.Format("%dx%d, %d bits %dhtz", devmode.dmPelsWidth,
devmode.dmPelsHeight, devmode.dmBitsPerPel,
devmode.dmDisplayFrequency);

m_sDispRes.AddString(sDevMode);
}
}
while(bRetVal);
}
}

Balamurugan from india chennai

Build Count

Waldermort24-Nov-06 0:13

Waldermort

24-Nov-06 0:13

Does anybody know if there is an auto build increaser in VC8? If so where and how is it configured?

In VC6 I used an add-in, but surely MS have updated a little since the dark ages.

Transfering an exe file . How ?

Sakthiu23-Nov-06 23:57

Sakthiu

23-Nov-06 23:57

Dear All,

I know sockets programming. I need to do that transfer an *.exe file one host to another host.

How do i do this ?

Thanks.

bye.

Re: Transfering an exe file . How ?

Galatei24-Nov-06 1:43

Galatei

24-Nov-06 1:43

Hi,

Sender:
- Establish Connection
- Send info what you're going to do, eg. copy file
- Open file
- read content
- send content
- close file
- Wait for acknowledge
- Shutdown transmission
- Liu out!

Recipient:
- Establish Connection
- wait for info
- create file (from info)
- receive content
- write content to file
- close file
- acknowledge completion
- Shutdown connection

Regards

Re: Transfering an exe file . How ?

Mark Salsbery24-Nov-06 6:19

Mark Salsbery

24-Nov-06 6:19

Also, if using Windows Sockets, you can use the TransmitFile() API to do the "read content/send
content" steps mentioned by Galatei Smile | :)

Mark

how can we retrieve selection state of listcontrol

johnalek23-Nov-06 23:50

johnalek

23-Nov-06 23:50

Hi How can we retrieve the listcontrol entries are selected are not

#sanroop#

Re: how can we retrieve selection state of listcontrol

Mila02523-Nov-06 23:58

Mila025

23-Nov-06 23:58

Hi,

GetItemState(
int nItem,
UINT nMask
);

-----------
Mila

Re: how can we retrieve selection state of listcontrol

Galatei24-Nov-06 1:52

Galatei

24-Nov-06 1:52

Hi,

The easiest way is to use GetNextItem:

INT nItemIndex = GetNextItem(
    -1,                      // means, start from beginning
    LVNI_ALL | LVNI_SELECTED // means search without direction & search selected
    );

Regards

keyboard focus

priyank_ldce23-Nov-06 22:36

priyank_ldce

23-Nov-06 22:36

Hi, I am making one application in VC++.NT using WIN32 APIs. Is there any way to find which edit box has a keyboard focus right now using WIN32 APIs? I need handle of the edit box when some one type in that edit box. Thanks in advance. Priyank.

Re: keyboard focus

Nibu babu thomas23-Nov-06 23:10

Nibu babu thomas

23-Nov-06 23:10

priyank_ldce wrote:
Is there any way to find which edit box has a keyboard focus right now using WIN32 APIs?

GetFocus(); to get the window that has focus, then use GetClassName or IsKindOf to find out whether the window is a CEdit.

Nibu thomas
A Developer

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