Re: Why can't use CFindReplaceDialog as A Base Class? - C / C++ / MFC Discussion Boards

Tili2-Dec-02 21:36

2-Dec-02 21:36

I need some code to see how to create a dialog based application with different background color without using MFC. I need help.
I am creating a Dialog Based application without MFC and I am also changing background color by ErasingBackground myself and handling WM_CTLCOLOTSTATIC AND WM_CTLCOLORDLG.
This whole works fine. But after sometime the window behaves awkwardly.
The scrollbar buttons of one edit control say 5 and 6 instead of arrows and the caption bar doesnt draw fine. I am also registering the DialogProc as WindowProc. and using CreateDialog to create dialog.
Do I also need a window proc tht creates a dialog after itself.

Following is the code for WinMain and then is the code for DialogProc

<br />
int APIENTRY WinMain(HINSTANCE hInstance,<br />
                     HINSTANCE hPrevInstance,<br />
                     LPSTR     lpCmdLine,<br />
                     int       nCmdShow)<br />
{<br />
	MSG msg;<br />
	hMainInstance=hInstance;<br />
<br />
	WNDCLASSEX wnd;<br />
	wnd.cbSize=sizeof WNDCLASSEX;<br />
	wnd.lpfnWndProc=(WNDPROC)MainWindowProc;<br />
	wnd.hIcon=LoadIcon(NULL,MAKEINTRESOURCE(IDI_ICON1));<br />
	wnd.hIconSm=(HICON)LoadImage(hInstance ,MAKEINTRESOURCE(IDI_ICON1),IMAGE_ICON,GetSystemMetrics(SM_CXSMICON),GetSystemMetrics(SM_CYSMICON),LR_DEFAULTCOLOR); <br />
 <br />
<br />
	RegisterClassEx(&wnd);<br />
<br />
	// Call coinitialize because we're gonna use it<br />
	CoInitialize(NULL);<br />
<br />
	m_hwndMain=CreateDialog(GetModuleHandle(NULL),MAKEINTRESOURCE(IDD_MAIN_DLG),NULL,(DLGPROC)DialogProc);<br />
	CoUninitialize();<br />
<br />
	if(m_hwndMain==NULL)<br />
		return 0;<br />
	// Give the handle of main window to ras class to make use of it later<br />
	HRGN hRgn=GetRgnInfo();<br />
	SetWindowRgn(m_hwndMain,hRgn,TRUE);<br />
	<br />
     while (GetMessage (&msg, NULL, 0, 0))<br />
     {<br />
          TranslateMessage (&msg);<br />
		  DispatchMessage (&msg); <br />
     }<br />
<br />
     return msg.wParam ; <br />
	return 0; <br />
}<br />

Dialog PRoc

<br />
INT_PTR CALLBACK DialogProc(<br />
  HWND hwndDlg,  // handle to dialog box<br />
  UINT uMsg,     // message<br />
  WPARAM wParam, // first message parameter<br />
  LPARAM lParam  // second message parameter<br />
)<br />
{<br />
 <br />
	HBRUSH hBR;<br />
	HDC hDC;<br />
	switch(uMsg)<br />
	{<br />
		case WM_INITDIALOG:<br />
			OnInitDialog();<br />
			return TRUE;<br />
			break;<br />
		<br />
		case WM_CTLCOLORDLG:<br />
			hBR=CreateSolidBrush(dwBgColor);<br />
			hDC=(HDC)wParam;<br />
			return (LONG)hBR;<br />
			break;<br />
		case WM_CTLCOLORSTATIC:<br />
			hDC=(HDC)wParam;<br />
			SetBkColor(hDC,dwBgColor);<br />
			SetTextColor(hDC,dwTxtColor);<br />
			hBR=CreateSolidBrush(dwBgColor);<br />
			return (LONG)hBR;<br />
			break;<br />
		case WM_COMMAND:<br />
			switch(LOWORD(wParam))<br />
			{<br />
			case IDC_E_INFO:<br />
				return TRUE;<br />
				break;<br />
			case IDC_E_STATUS:<br />
				return TRUE;<br />
				break;<br />
				<br />
			case IDC_BN_CONNECT:<br />
				OnBnConnect();<br />
				return TRUE;<br />
				break;<br />
			case IDOK:<br />
				DestroyWindow(m_hwndMain);<br />
				return TRUE;<br />
				break;<br />
			case IDCANCEL:<br />
				MessageBox(m_hwndMain,"Cancel button clicked","SexDialer",MB_OK);<br />
				DeleteTrayIcon();<br />
				DestroyWindow(m_hwndMain);<br />
				return TRUE;<br />
				break;<br />
			case IDC_CHK_ADD_CHANNEL:<br />
				return OnAddChannel();<br />
				break; <br />
			case IDC_E_OUT_LINE:<br />
				return TRUE;<br />
				break;<br />
			case IDC_CMB_ADAPTER:<br />
				if(HIWORD(wParam)==CBN_SELCHANGE)<br />
						OnAdapterSelChanged();<br />
				return TRUE;<br />
				break;<br />
			}		<br />
		case WM_ERASEBKGND:<br />
			return OnEraseBkgnd((HDC)wParam);<br />
			break;<br />
		case WM_DESTROY:<br />
			EndDialog(m_hwndMain,wParam);	<br />
			PostQuitMessage(wParam);<br />
			return FALSE;<br />
			break;<br />
		case WM_TIMER:<br />
			OnTimer((UINT)wParam);<br />
			return TRUE;<br />
			break;<br />
		case WM_NOTIFYTASKBARICON:<br />
			OnNotifyTaskBarIcon(wParam,lParam);<br />
			return TRUE;<br />
			break;<br />
		case WM_DIAL_STATUS:<br />
			OnDialStatus(wParam,lParam);<br />
			return TRUE;<br />
			break;<br />
		case WM_SYSCOMMAND:<br />
			return OnSysCommand(wParam,lParam);<br />
			break;<br />
<br />
	}	<br />
	return FALSE;<br />
}<br />

Please Help.
Thanks in advance.

In my dream, I was dorwning my §orrow§
But my §orrow§, they learned to §wim

Re: DialolgProc doesnt work

Rickard Andersson²⁰2-Dec-02 23:14

Rickard Andersson²⁰

2-Dec-02 23:14

Tili wrote:
The scrollbar buttons of one edit control say 5 and 6 instead of arrows and the caption bar doesnt draw fine

I can't see that you're handling WM_PAINT.
I'm not sure but WM_PAINT should fix the problem.

Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C#, ASP.NET and C++!

Re: DialolgProc doesnt work

Paul M Watt3-Dec-02 5:55

Paul M Watt

3-Dec-02 5:55

Your problem is that you are running out of GDI resources because you are not deleting your brushes in your calls to the CTLCOLOR messages. The best way to handle that is to create a member variable in your window class or a global variable that gets initialized and holds the brush. Then you just hand out that same brush over and over.

Good luck

Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!

Re: DialolgProc doesnt work

Tili3-Dec-02 21:54

Tili

3-Dec-02 21:54

THanks. I have done that. Well I did one more thing last night and it made the application to work fine.
I used this code to handle WM_NCPAINT

<br />
		case WM_NCPAINT:<br />
			if(hwndDlg==m_hwndMain)<br />
			{			<br />
				hDC=BeginPaint(hwndDlg,&paint);<br />
				paint.fErase=FALSE;<br />
				EndPaint(hwndDlg,&paint);<br />
				ReleaseDC(hwndDlg,hDC);<br />
			}<br />
			return FALSE;<br />
			break;<br />

If I dont use it I dont get my title bar drawn and if I use it it works fine. Dont actually know why is it working with that. Must be inside of my code.

In my dream, I was dorwning my §orrow§
But my §orrow§, they learned to §wim

Why can't use CFindReplaceDialog as A Base Class?

zhdleonid2-Dec-02 21:17

zhdleonid

2-Dec-02 21:17

When i create a new Class.
I want to do it base as the class CFindReplaceDialog.

But i can't choose it.

Why?

how to do it ?

i feel good.

Re: Why can't use CFindReplaceDialog as A Base Class?

jhwurmbach2-Dec-02 21:35

jhwurmbach

2-Dec-02 21:35

But you can do it by hand!
If you really HAVE TO use the wizard, simply make the class derived from something else (CDialog might be OK when ypu design a dialog), then in the header change the #include line of the header-file to that of CFindReplaceDialog.
Then you only need to change every occurence of CDialog in your header and code files to saying CFindReplaceDialog and you are done.

"My opinions may have changed, but not the fact that I am right."
Found in the sig of Herbert Kaminski

Re: Why can't use CFindReplaceDialog as A Base Class?

zhdleonid2-Dec-02 22:02

zhdleonid

2-Dec-02 22:02

your mean is frist choose the CDialog as the Base Class?

and then replace the CDialog to CFindReplaceDialog in the cpp and h file?

is right?

let me try it.
thanks.

go on...

i feel good.

Re: Why can't use CFindReplaceDialog as A Base Class?

zhdleonid2-Dec-02 23:17

zhdleonid

2-Dec-02 23:17

i have tried it .

but it is failed.

i find that if only replace the CDialog to CFindReplaceDialog is not the all
.
must be change more:
------------------------

<br />
// MyFindDlg.cpp : implementation file<br />
//<br />
#include "stdafx.h"<br />
#include "CFindTest.h"<br />
#include "MyFindDlg.h"<br />
#ifdef _DEBUG<br />
#define new DEBUG_NEW<br />
#undef THIS_FILE<br />
static char THIS_FILE[] = __FILE__;<br />
#endif<br />
<br />
/////////////////////////////////////////////////////////////////////////////<br />
// CMyFindDlg dialog<br />
<br />
IMPLEMENT_DYNAMIC(CMyFindDlg, CFindReplaceDialog) //NEW ADD:-O<br />
 <br />
CMyFindDlg::CMyFindDlg(BOOL bFindDialogOnly, LPCTSTR lpszFindWhat,<br />
             LPCTSTR lpszReplaceWith, DWORD dwFlags, CWnd* pParentWnd )<br />
	: CFindReplaceDialog() //NEW Add:-O<br />
  //you see CFindReplaceDialog() must be none parameter<br />
{<br />
}<br />
<br />
/*<br />
void CMyFindDlg::DoDataExchange(CDataExchange* pDX)<br />
{<br />
	CFindReplaceDialog::DoDataExchange(pDX);<br />
	//{{AFX_DATA_MAP(CMyFindDlg)<br />
		// NOTE: the ClassWizard will add DDX and DDV calls here<br />
	//}}AFX_DATA_MAP<br />
}<br />
*/ // it MUST BE DEL:-O<br />
<br />
BEGIN_MESSAGE_MAP(CMyFindDlg, CFindReplaceDialog)<br />
	//{{AFX_MSG_MAP(CMyFindDlg)<br />
	//}}AFX_MSG_MAP<br />
END_MESSAGE_MAP()<br />
<br />

-------------------------------------

<br />
#if !defined(AFX_MYFINDDLG_H__0F4D5405_8798_432C_91D0_46FB54833CE7__INCLUDED_)<br />
#define AFX_MYFINDDLG_H__0F4D5405_8798_432C_91D0_46FB54833CE7__INCLUDED_<br />
#if _MSC_VER > 1000<br />
#pragma once<br />
#endif // _MSC_VER > 1000<br />
// MyFindDlg.h : header file<br />
//<br />
/////////////////////////////////////////////////////////////////////////////<br />
// CMyFindDlg dialog<br />
class CMyFindDlg : public CFindReplaceDialog<br />
{<br />
	DECLARE_DYNAMIC(CMyFindDlg)  //NEW ADD:-O<br />
// Construction<br />
public:<br />
    CMyFindDlg( BOOL bFindDialogOnly,     //NEW ADD:-O<br />
             LPCTSTR lpszFindWhat,<br />
             LPCTSTR lpszReplaceWith = NULL,<br />
             DWORD dwFlags = FR_DOWN, <br />
             CWnd* pParentWnd = NULL );<br />
protected:<br />
	// Generated message map functions<br />
	//{{AFX_MSG(CMyFindDlg)<br />
	//}}AFX_MSG<br />
	DECLARE_MESSAGE_MAP()<br />
};<br />
//{{AFX_INSERT_LOCATION}}<br />
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.<br />
#endif // !defined(AFX_MYFINDDLG_H__0F4D5405_8798_432C_91D0_46FB54833CE7__INCLUDED_)<br />

---------------------

that is my NEW Class CMyFindDLg.

i use it in the CMainFrame ,but it has Failed.
void CMainFrame::OnFind() //a new
{
// TODO: Add your command handler code here
CMyFindDlg dlg; // i want to declare the Class CMyFindDlg object . Cry | :((

}

but have a error:
: error C2512: 'CMyFindDlg' : no appropriate default constructor available

how i will do ?????

thanks.

i feel good.

Re: Why can't use CFindReplaceDialog as A Base Class?

jhwurmbach2-Dec-02 23:43

jhwurmbach

2-Dec-02 23:43

zhdleonid wrote:
CMyFindDlg dlg; // i want to declare the Class CMyFindDlg object

First, MSDN says: "CFindReplaceDialog objects are constructed on the heap with the new operator".
Maybe doing so with your class may help?

CMyFindDlg* pDlg = new CMyFindDlg();

Second, you cant make a CMyFindDlg without parameters, because you have no constructor defined that uses no parameters. This is what the compiler is saying here:

": error C2512: 'CMyFindDlg' : no appropriate default constructor available".

Call your constructor with any constructor arguments you need, construct the CFindReplaceDialog without parameters (as you do) and store the parameters in member vars of CMyFindDlg until you need them.

Third, as the MSDN states in the article about CFindReplaceDialog,
you show the dialog using the Create()-function.
Do this when calling your dialog (and override this function as neccesary).

Hope this helps

--
"My opinions may have changed, but not the fact that I am right."
Found in the sig of Herbert Kaminski

Re: Why can't use CFindReplaceDialog as A Base Class?

zhdleonid3-Dec-02 0:49

zhdleonid

3-Dec-02 0:49

Thanks all you say.

i know why it has an error.

but i don't konw how to make it right.

i try :CMyFindDlg* pDlg = new CMyFindDlg();
but it isn't right.

so i will do as it have parameters.

for example:

if I New a class CMyFindDlg base on the class CFindReplaceDialog
when i use the new class CMyFindDlg to define a object in the CMainFrame.

i will do :
void CMainFrame::OnFind()
{
// TODO: Add your command handler code here
CMyFindDlg dlg(...) //here ,how to write? can you help me?

}

wait you.

i feel good.

Re: Why can't use CFindReplaceDialog as A Base Class?

jhwurmbach3-Dec-02 1:24

jhwurmbach

3-Dec-02 1:24

Try something like this:

void CMainFrame::OnFind() 
{
  // TODO: Add your command handler code here
  CMyFindDlg* pDlg = new CMyFindDlg(..you parameters..);
  pDlg->Create(..parameters that CFindReplaceDialog::Create needs..);
}

This Way you first construct your Object, giving it the parameters it needs, and later display it, using the parameters that create needs.
You did #include < afxdlgs.h > ? MSDN says there are the headers for CFindReplaceDialog.

Hope this helps

--
"My opinions may have changed, but not the fact that I am right."
Found in the sig of Herbert Kaminski

Re: Why can't use CFindReplaceDialog as A Base Class?

zhdleonid3-Dec-02 2:40

zhdleonid

3-Dec-02 2:40

but i don't how to over write the CFindReplaceDialog::Create
in the NEW Class CMyFindDlg.

i try:
//in CMyFindDlg.hF
BOOL Create(BOOL bFindDialogOnly,
LPCTSTR lpszFindWhat,
LPCTSTR lpszReplaceWith = NULL,
DWORD dwFlags = FR_DOWN,
CWnd* pParentWnd = NULL);

//in CMyFindDlg.cpp
CMyFindDlg::Create(BOOL bFindDialogOnly, LPCTSTR lpszFindWhat,
LPCTSTR lpszReplaceWith, DWORD dwFlags, CWnd* pParentWnd )
{
return TRUE;
}

when i use :
void CMainFrame::OnFind()
{
// TODO: Add your command handler code here
CMyFindDlg* pDlg = new CMyFindDlg();
pDlg->Create( TRUE, "", "", FR_DOWN, this );

}
to do

it run CMyFindDlg::Create() ,not the CFindReplaceDialog::Create.
-------------------------------------------------------------------

i feel good.

Re: Why can't use CFindReplaceDialog as A Base Class?

Christian Graus2-Dec-02 23:43

Christian Graus

2-Dec-02 23:43

zhdleonid wrote:
error C2512: 'CMyFindDlg' : no appropriate default constructor available

This means you're trying to build your object, somewhere, but do not provide a constructor that has no arguments. Actually I thought the compiler wrote you one if you did not provide it, so it's more likely the default constructor is private, meaning you cannot access it.

zhdleonid wrote:
: CFindReplaceDialog()

Of what use is this, seeing as you don't pass in anything ? Does CFileReplaceDialog have a default constructor ?

Christian

No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002

Re: Why can't use CFindReplaceDialog as A Base Class?

zhdleonid3-Dec-02 0:52

zhdleonid

3-Dec-02 0:52

dose the class CFindReplaceDialog defined in
#include <afxdlgs.h>????

i feel good.

Re: Why can't use CFindReplaceDialog as A Base Class?

Christian Graus3-Dec-02 10:29

Christian Graus

3-Dec-02 10:29

It's an MFC dialog, it will be defined in the MFC source, which comes with VC. Do a find in files for CFindReplaceDialog:: and you'll find the source.

Christian

No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002

Geert Delmeiren2-Dec-02 20:28

Geert Delmeiren

2-Dec-02 20:28

Instead of using (c) in the About box I used the real symbol ©.
On my machine and a lot of others it is perfectly visible.

But, I have a colleague (who runs XP) who doesn't see that symbol
in the about box. Instead he sees a '?'.
Also, when he opens my project in MSDEV, he can't see the ©,
but again sees a '?' instead.

When he looks e.g. at the about box of Outlook the © is perfectly visible.

Any ideas on how to solve this?

Thanks.

Re: Copyright sign © in about box

Rickard Andersson²⁰2-Dec-02 21:35

Rickard Andersson²⁰

2-Dec-02 21:35

What font are you using?

Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C#, ASP.NET and C++!

Geert Delmeiren2-Dec-02 23:09

Geert Delmeiren

2-Dec-02 23:09

Hi Rickard,

I'm using the standard MS Sans Serif (size 8).
So, it's not that this symbol doesn't exist in that font.

Thanks for your reaction.
Geert.

Anonymous3-Dec-02 2:49

Anonymous

3-Dec-02 2:49

strange, perhaps have a look into your .rc file ? any strange things or unwanted code page (language local)?

Geert Delmeiren3-Dec-02 20:24

Geert Delmeiren

3-Dec-02 20:24

Nothing suspicious.
Language is English (U.S.) and the © character is perfectly visible.
Must be something with XP I guess.

Geert.

DialogBase Program with no TaskBar Button.

Behzad Ebrahimi2-Dec-02 20:07

Behzad Ebrahimi

2-Dec-02 20:07

How can I make a DialogBase Program with no TaskBar Button.
I can make it by StatusBar icon;). But i can't remove it's TaskBar button Cry | :((

.

Plaese guid me how do I it.

THANKS. Rose | [Rose]

Re: DialogBase Program with no TaskBar Button.

Kannan Kalyanaraman2-Dec-02 20:15

Kannan Kalyanaraman

2-Dec-02 20:15

have a look at this[^] article

Cheers
Kannan Smile | :)

cannot execute script using IHTMLWindow2

yourbuddy772-Dec-02 17:23

yourbuddy77

2-Dec-02 17:23

hi,

I'm not able to execute script using IHtmlWindow2 as execScript function fails..for e.g thr following code returns failed..

BSTR bstrCode = ::SysAllocString(L"MsgBox \"Hello there\"");
BSTR bstrLanguage = ::SysAllocString(L"vbscript");

VARIANT var;
VariantInit(&var);
hr = pWindow->execScript(bstrCode, bstrLanguage, &var);
if(SUCCEEDED(hr))
AfxMessageBox("success!!");
else
AfxMessageBox("failed !!");

Can anyone Help me with this?The IHTMLWindow2 is successfully created and its other functions like pWindow->alert(.. work correctly in this same code.
thanx in advance,
viraj

OLE Containers

vijayaramaraju2-Dec-02 17:11

vijayaramaraju

2-Dec-02 17:11

Hi,

I've Created an ActiveX container application by selecting container in the third step of the Wizard of to make an SDI Application. I'm able to Insert ActiveX Objects into the Application. they look real great. The problem is the window Messages like Left Mouse Button Click MouseMove etc.. are not being sent to the control as a result it just appears to be doing nothing but appear as images. is there any method that would enable the controls to recieve User Interface messages. Would be very thankful for helping out.

Thank You

OLE Containers

vijayaramaraju2-Dec-02 17:10

vijayaramaraju

2-Dec-02 17:10

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