Need help with Callback in DLL - C / C++ / MFC Discussion Boards

Re: User DSN

David Crow3-Jan-05 3:25

David Crow

3-Jan-05 3:25

Use SQLConfigDataSource().

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

How do i make a combo box non-editable

swarnamanoo3-Jan-05 1:06

swarnamanoo

3-Jan-05 1:06

How do i make a combo box non-editable

Re: How do i make a combo box non-editable

Cedric Moonen3-Jan-05 1:48

Cedric Moonen

3-Jan-05 1:48

Go into the properties of your combobox -> 'style' Tab and select 'DropList' in the 'Type' combo.

DJSplitter + Formview problem

Master^Tristar3-Jan-05 1:03

Master^Tristar

3-Jan-05 1:03

Hi all.
Got a little Problem...

I have 4 Views (CFormView) with a TreeCtrl in it..
now i moved the tree into a Splitterwindow (created by CChildFrame).

Wehn User selects a DataView from the Menu I call OpenDocumentFile() whitch
call's afer ObCreateClient() where I switch between the View's...

Question :
How I get Access from CLeftView to the CChildFrame to change the View (wndSplitter->CreateView() or call funtions whitch Show Data within the CFormView ??

Thx. for Help !!!

Re: DJSplitter + Formview problem

Master^Tristar4-Jan-05 0:55

Master^Tristar

4-Jan-05 0:55

Got it by myself after spending hours... Dead | X|

Hier the code I used to get rid of it.... hope it helps someone... Roll eyes | :rolleyes:

BOOL CChildFrame::OnCreateClient(LPCREATESTRUCT /*lpcs*/, CCreateContext* pContext)
{
// Unterteiltes Fenster erstellen
if (!m_wndSplitter.CreateStatic(this, 1, 2))
return FALSE;

// create a new left pane !!
if (!m_wndSplitter.CreateView(0, 0, RUNTIME_CLASS(CLeftView), CSize(200, 200), pContext))
{
AfxMessageBox("Failed to create Client Frame Window!");
m_wndSplitter.DestroyWindow();
return FALSE;
}

CString m_Classname = pContext->m_pNewViewClass->m_lpszClassName;
// AfxMessageBox(m_Classname);

// selct the view
if (m_Classname == "CFrmAdressen")
{
// AfxMessageBox("Class ist CFrmAdressen");
if (!m_wndSplitter.CreateView(0, 1, RUNTIME_CLASS(CFrmAdressen), CSize(200, 200), pContext))
{
m_wndSplitter.DestroyWindow();
return FALSE;
}
return TRUE;
}
if (m_Classname == "CFrmArtikel")
{
if (!m_wndSplitter.CreateView(0, 1, RUNTIME_CLASS(CFrmArtikel), CSize(200, 200), pContext))
{
m_wndSplitter.DestroyWindow();
return FALSE;
}
return TRUE;
}
if (m_Classname == "CFrmAuftrag")
{
if (!m_wndSplitter.CreateView(0, 1, RUNTIME_CLASS(CFrmAuftrag), CSize(200, 200), pContext))
{
m_wndSplitter.DestroyWindow();
return FALSE;
}
return TRUE;
}

if (m_Classname == "CFrmInfoBox")
{
if (!m_wndSplitter.CreateView(0, 1, RUNTIME_CLASS(CFrmInfoBox), CSize(200, 200), pContext))
{
m_wndSplitter.DestroyWindow();
return FALSE;
}
return TRUE;
}
}

Leftview Treehandling :

void CLeftView::OnTvnSelchanged(NMHDR *pNMHDR, LRESULT *pResult)
{
LPNMTREEVIEW pNMTreeView = reinterpret_cast<lpnmtreeview>(pNMHDR);

CChildFrame *m_Child = ((CChildFrame*)GetParentFrame()->GetActiveFrame());
CWnd *p_Wnd = m_Child->m_wndSplitter.GetPane(0,1);
if (m_Child->GetRuntimeClass() == RUNTIME_CLASS(CFrmInfoBox))
{
CFrmInfoBox* m_Info = DYNAMIC_DOWNCAST(CFrmInfoBox, p_Wnd);
m_Info->OnTvnSelchangedTree1(pNMHDR, pResult);
}
}
*pResult = 0;
}

So I can Display and change view as before... but without using Tree in the FormView...

After I just a add a function to update the tree as I need...

C'ya

c++ library runtime error

X20403-Jan-05 0:34

X2040

3-Jan-05 0:34

i have made a program using VC++ 7.0 MFC
and i included in my package all the MFC Dlls
and this program is running under windows XP
but when i try to open it from windows 98
a message error occurs telling me that

"C++ library runtime error"

does any one know how to solve this problem

Re: c++ library runtime error

ThatsAlok3-Jan-05 0:42

ThatsAlok

3-Jan-05 0:42

Problem is that you have created DLL that Support MFC70.dll and Win98 support till MFC42.dll.

this only cauing teh Problem,only solution is to compile the library on 98 platefrom

"I Think this Will Help"
Alok Gupta
visit me at http://www.thisisalok.tk

Need help with Callback in DLL

RedDragon2k2-Jan-05 23:10

RedDragon2k

2-Jan-05 23:10

Hi everyone

i'm working on a DLL with 2 Callback Functions but i really have no clue why it isn't working:

//MainClass.h (It's the DLL)

typedef void (__stdcall *LP_CREATEHANDLER_FUNC)(HANDLE, CString);
typedef void (__stdcall *LP_TERMINATEHANDLER_FUNC)(HANDLE);

class CMainClass
{
public:
__declspec(dllexport) void SetCreateHandler(LP_CREATEHANDLER_FUNC p_Handler);
__declspec(dllexport) void SetTerminateHandler(LP_TERMINATEHANDLER_FUNC p_Handler);
};

//ClientDlg.cpp TheMainApp

BOOL CClientDlg::OnInitDialog()
{
CDialog::OnInitDialog();
...
m_cls.SetCreateHandler(CreateHandler);
m_cls.SetTerminateHandler(TerminateHandler);
}

void __stdcall CClientDlg::CreateHandler(HANDLE hPID, CString strFilename)
{
}

void __stdcall CClientDlg::TerminateHandler(HANDLE hPID)
{
}

I get the following error:
error C2664: 'CMainClass::SetCreateHandler' : cannot convert parameter 1 from 'void (HANDLE,CString)' to 'LP_CREATEHANDLER_FUNC'
error C2664: 'CMainClass::SetTerminateHandler' : cannot convert parameter 1 from 'void (HANDLE)' to 'LP_TERMINATEHANDLER_FUNC'

what am i doing wrong ?

MFG
RedDragon2kx

Unix and C are the ultimate computer viruses.

Re: Need help with Callback in DLL

C^hris L^osinger3-Jan-05 4:04

C^hris L^osinger

3-Jan-05 4:04

you can't reference a non-static class member function via a function pointer.

Software | Cleek

Re: Need help with Callback in DLL

Neville Franks3-Jan-05 8:37

Neville Franks

3-Jan-05 8:37

Chris Losinger wrote:
you can't reference a non-static class member function via a function pointer.

unless you use something like FastDelegate: http://www.codeproject.com/cpp/FastDelegate.asp[^] Boost also has libraries which can do this, but FastDelegate is simpler and works incredibly well.

Neville Franks, Author of ED for Windows www.getsoft.com and Surfulater www.surfulater.com "Save what you Surf"

afxwin.h Weird Compile Error..

Maverick2-Jan-05 22:21

Maverick

2-Jan-05 22:21

HellO!!

I don't really know what happened or i might have edited accidentally the afxwin.h or another file. When I compile my Project even when I start a new MDI MFC skeleton application... i get this message:

c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\atlmfc\include\afxwin.h(3970) : error C2501: 'CScrollView::CRectTracker' : missing storage-class or type specifiers

Is there anyway i can solve this before i can do reinstallation of VS .NET?

afxwin.h Weird Compile Error..

Maverick2-Jan-05 22:21

Maverick

2-Jan-05 22:21

How to draw static controls and check box buttons transparently ?

rrrado2-Jan-05 21:50

rrrado

2-Jan-05 21:50

I'd like to have my tabbed dialog application using XP themes like "My Computer-> properties" in the win XP - the dialog inside the TAB control should use gradient background.
My problem is that static controls and check box buttons are not drawn properly -> background of the text is erased by default dialog background color (text background has OPAQUE mode). I've tried to handle the WM_CTLCOLOR message in the dialog, but this solved only the problem with text static controls, not with the group rectangle static box (it's text was drawn over the rectangle line when I've set text background mode to TRANSPARENT).
I hope there is some easier way than to code my own owner drawn controls, when windows GUI is using this.
Any suggestions ?
Thanks !

rrrado

Re: How to draw static controls and check box buttons transparently ?

YoSilver3-Jan-05 4:12

YoSilver

3-Jan-05 4:12

Looks strange because when an XP theme is active, all text labels are drawn transparently; in fact, no WM_CTLCOLOR handling is necessary. Does your app have a manifest resource in it that enables theming (the XP look) when a theme is active?

The gradient that you see in "My Computer-> properties" is NOT a feature of a themed Tab control, it's how the theme handles property sheets - it applies a gradient background to each of the dialog in the sheet. If you create your own tabbed dialog, you can do it by handling WM_ERASEBKGND in each of your dialogs.

Consider the following code excerpt; perhaps you will get some ideas on your group boxes (BTW, they belong to window class BUTTON, not STATIC):

BOOL myGroupBox::OnEraseBkgnd(CDC* pDC) 
{
    CRect rcCtrl;
    GetClientRect(rcCtrl);

    if (GetUXThemeState().IsThemeActive())
        pDC->FillSolidRect(rcCtrl, ColorAdjustLuma(afxData.clrBtnFace, 750, TRUE));
    else
        pDC->FillSolidRect(rcCtrl, afxData.clrBtnFace);

    PrintClient(pDC, PRF_CLIENT);

    return 1;
}

void myGroupBox::OnPaint() 
{
    // validates the invalid area to prevent the infinite paint loop
    PAINTSTRUCT ps = {0}; 
    ::BeginPaint(m_hWnd, &ps);
    ::EndPaint(m_hWnd, &ps);
}

One always gets the deserved.

http://www.silveragesoftware.com/hffr.html
Update your source code with my tool HandyFile Find And Replace!

Re: How to draw static controls and check box buttons transparently ?

rrrado4-Jan-05 0:07

rrrado

4-Jan-05 0:07

Thank you very much for your response. I'll try your code. I don't use property sheets besause of it's limitations. I have tab control which has child dialogs. I'm handling the child dialog's onEraseBackgroud where I do nothing, so oridinal tab control's background remains.
I have manifest file in my resources, so all buttons, group boxes, etc. looks like in Win XP theme.
So I don't know why my static controls are not drawn transparently by default Confused | :confused:

I'm also calling InitCommonControls(); in the app's InitInstance() as recommended ...

rrrado

Re: How to draw static controls and check box buttons transparently ?

YoSilver4-Jan-05 5:18

YoSilver

4-Jan-05 5:18

Could you make a small screenshot of the text label portion of a group box and give a link? this can make the native Windows drawing procedure more clear.

Oh... I think all you have to do is give your group boxes sensible ID's (other than -1 /IDC_STATIC/), check them in the WM_CTLCOLOR handler, call pdc->SetBkColor() for these ID's and return a brush of a proper color. Do not set the background mode to TRANSPARENT.

One always gets the deserved.

http://www.silveragesoftware.com/hffr.html
Update your source code with my tool HandyFile Find And Replace!

creating ActiveX controls for Dialog froms...

Surya Prakash Adari2-Jan-05 19:31

Surya Prakash Adari

2-Jan-05 19:31

I create some functions in vcpp. i want to use these function in vb.
for ex. i wrote a DrawArrow function which takes 2

parameters(point1,point2); ... i want to use this in VB. So i want to
create an Activex control for this, can i use MFC Activex controls.
And similary i create one dialog based form in vc++. and i want to

create entire application into an Activex control can i to that.

i wrote all the methods to resize that dialog and different event.
but i have to create a ocx control to use in VB 6.0.
so plz help me

thanks in Advance.
Surya prakash.

Re: creating ActiveX controls for Dialog froms...

ThatsAlok2-Jan-05 22:17

ThatsAlok

2-Jan-05 22:17

There are Many Gud tutorial Written for learning ATl
http://www.codeproject.com/atl/#Beginners[^]

http://www.codeproject.com/atl/#Unedited+Reader+Contributions[^]

"I Think this Will Help"
Alok Gupta
visit me at http://www.thisisalok.tk

TCPview like tool

2000ram2-Jan-05 19:21

2000ram

2-Jan-05 19:21

Does anyone of you know how to develop a tool like tcpview(by sysinternals.com)? My requirement is to not just listing (as in TCPview) but to monitor and end a process before it actually starts. For example, i want to filter all applications passing through port 80 except Internet Explorer. so if some clicks any pdf file on Internet, he will not be allowed to do so? how do i proceed? i m really clueless and need some ideas.

Thanking u,

Dbl Click Event handler for Buttons created at Runtime

Surya Prakash Adari2-Jan-05 19:09

Surya Prakash Adari

2-Jan-05 19:09

hai,
thanks Alok , i use the message map macro ON_COMMAND_RANGE( ...)

the above gives only the single mouse lclick funtions.. can u give the remaining for double click and left and rigth mouse clicks.. and mouse moves.

i want other macros that give the id of button , which will be invoke when user double click on the ranged buttons. need help ,,
thanks in advance ...
Surya prakash. Smile | :)

Re: Dbl Click Event handler for Buttons created at Runtime

ThatsAlok2-Jan-05 19:59

ThatsAlok

2-Jan-05 19:59

adarisurya@yahoo.co.in wrote:
can u give the remaining for double click

Look For these messages in wNotifyCode of ON_COMMAND_RANGE
BN_DBLCLK: For Button Double Click

adarisurya@yahoo.co.in wrote:
i want other macros that give the id of button , which will be invoke when user double click on the ranged buttons. need help ,,

wParam
The low-order word contains the button's control identifier. (USE LOWORD macro here)
The high-order word specifies the notification message.
(USE HIWORD macro here)

lParam
Handle to the button

"I Think this Will Help"
Alok Gupta
visit me at http://www.thisisalok.tk

TCPview like-tool

Anonymous2-Jan-05 18:50

Anonymous

2-Jan-05 18:50

Re: TCPview like-tool

ThatsAlok2-Jan-05 18:59

ThatsAlok

2-Jan-05 18:59

First Show You Identity.
Then ask your question.

Why People Don't Show there Identity while asking Question.
Is asking Question harm there Respect.

"I Think this Will Help"
Alok Gupta
visit me at http://www.thisisalok.tk

Re: TCPview like-tool

Anonymous2-Jan-05 19:10

Anonymous

2-Jan-05 19:10

Ok.. i have not registered to code-project. will register now itelf and resend the mail. my mail was not in anyway trying to hurt any1. if i violated the etiquttes of the group, then i am sorry.

Re: TCPview like-tool

ThatsAlok2-Jan-05 19:20

ThatsAlok

2-Jan-05 19:20

Anonymous wrote:
then i am sorry.

I do not mean that, no need for Sorry, but I just want to convey if you post by Identity, you will get better Response from other user.

Anonymous wrote:
if I violated the etiquettes of the group
That depends upon the Group Moderator

Anonymous wrote:
i have not registered to code-project.

Go and register, its free.

"I Think this Will Help"
Alok Gupta
visit me at http://www.thisisalok.tk

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