C / C++ / MFC

30-Apr-07 0:40

Hi,

I want to display a Modaless Dialog box instead of Modal dialog box in mfc application.So,I called Create function instead of DoModal() inside the InitInstance() but I am getting Debug Assertion Failed error.

CDlg dlg;

m_pMainWnd = &dlg;
int nResponse = dlg.Create(IDD_DIALOG1);

if(nResponse)

dlg.ShowWindow(SW_SHOW);

else

MessageBox(NULL,_T("Error"),_T("Error"),MB_OK);

I dont know where made the mistake???

Siddharth

Venkata Rama Subbarao30-Apr-07 1:07

Venkata Rama Subbarao

30-Apr-07 1:07

While creating dialog box pass the second parameter as NULL. After successful creation of dialog you have to assign the address of the dialog to the m_pMainWnd.

int nResponse = dlg.Create(IDD_DIALOG1, NULL);

if(nResponse)
{
m_pMainWnd = &dlg;
m_pMainWnd->ShowWindow(SW_SHOW);
}
else
{}

I think this will solve your problem.

siddharthsan30-Apr-07 2:20

30-Apr-07 2:20

Thank you,

I have to globally define the dlg instance,

CMfc_Modaless_vc6Dlg dlg;
CWnd* m_pMainWnd = &dlg;

while I do this after the application instance creation it is giving the same Debug Assertion Failed problem.I cannot declare the Dlg locally,so what i can do for this?

Siddharth

David Crow30-Apr-07 3:01

30-Apr-07 3:01

siddharthsan wrote:
I have to globally define the dlg instance,

You should not have to do this.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

David Crow30-Apr-07 2:59

30-Apr-07 2:59

tvrsrao wrote:
After successful creation of dialog you have to assign the address of the dialog to the m_pMainWnd.

Why would you say this?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

David Crow30-Apr-07 3:00

30-Apr-07 3:00

siddharthsan wrote:
...I am getting Debug Assertion Failed error.

What line of what file is asserting?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

siddharthsan30-Apr-07 3:14

30-Apr-07 3:14

Thank you,

I am getting Debug Assertion in afxwin1.ini file.

I told that we have to create dlg instance globally because,when i create it inside the initinstance then dialog will be disappeared when the it is out of the scope,so I wanted it as a global one.

David Crow30-Apr-07 3:43

30-Apr-07 3:43

siddharthsan wrote:
I am getting Debug Assertion in afxwin1.ini file.

The file is over 1100 lines long. Which one?

siddharthsan wrote:
I told that we have to create dlg instance globally because,when i create it inside the initinstance then dialog will be disappeared when the it is out of the scope,so I wanted it as a global one.

Make it a member of your CWinApp-derived class instead.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

siddharthsan30-Apr-07 4:00

30-Apr-07 4:00

Error is in Line no 22

David Crow30-Apr-07 4:03

30-Apr-07 4:03

So are you directly or indirectly calling AfxGetResourceHandle()?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

siddharthsan30-Apr-07 4:11

30-Apr-07 4:11

No, I am not calling that function directly.

But global declaration where I am doing Is it correct?

After the App instance creation,I am creating Dlg instance.

David Crow30-Apr-07 4:16

Problem in Disable System menu

30-Apr-07 4:16

siddharthsan wrote:
No, I am not calling that function directly.

I also asked about an indirect call. When the assertion fires, check the call stack.

siddharthsan wrote:
But global declaration where I am doing Is it correct?

Not in my opinion. Until you actually solve the problem, you'll not know for sure if it's correct or not.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

mohindar_kks30-Apr-07 0:34

mohindar_kks

30-Apr-07 0:34

Hi,
In my project i want to disable and enable Main Menu at run time using mfc .

I had try to run the following code, but don't send error occurred

CMenu* mmenu = GetMenu();
CMenu* submenu = mmenu->GetSubMenu(0);
submenu->EnableMenuItem(ID_FILE_NEW,MF_DISABLED | MF_GRAYED);

Please help me How to Disable/Enable Main Menu using View class

Venkata Rama Subbarao30-Apr-07 1:31

Venkata Rama Subbarao

30-Apr-07 1:31

I don't think we can work on Menus using View object. try to get the MainWindow handle and use that handle for obtaining menus.

CWnd* wnd=AfxGetMainWnd();
CMenu* mmenu = wnd->GetMenu();
CMenu* submenu = mmenu->GetSubMenu(0);
submenu->EnableMenuItem(ID_FILE_NEW,MF_DISABLED | MF_GRAYED);

Try this and i hope this will work fine.

mohindar_kks30-Apr-07 2:19

mohindar_kks

30-Apr-07 2:19

Hi
I had work with following code in view class, but Debug assertion failed had occured.

code:

CWnd* wnd=AfxGetMainWnd();
CMenu* mmenu = wnd->GetMenu();
CMenu* submenu = mmenu->GetSubMenu(0);
submenu->EnableMenuItem(ID_FILE_NEW,MF_DISABLED | MF_GRAYED);

David Crow30-Apr-07 3:02

30-Apr-07 3:02

mohindar_kks wrote:
...but Debug assertion failed had occured.

What line of what file is asserting?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Can I call a web page from vc++

mohindar_kks30-Apr-07 3:14

mohindar_kks

30-Apr-07 3:14

Hi
I had solved Debug assertion failed problem.

Problem : Not disable menu with gray color from the following code

code:
CWnd* wnd=AfxGetMainWnd();
CMenu* mmenu = wnd->GetMenu();
CMenu* submenu = mmenu->GetSubMenu(0);
submenu->EnableMenuItem(ID_FILE_NEW,MF_DISABLED | MF_GRAYED);

yaminisridaran30-Apr-07 0:24

yaminisridaran

30-Apr-07 0:24

I have to use Web Page in VC++.Can anyone suggests me something

S.Yamini

_AnsHUMAN_ 30-Apr-07 1:07

_AnsHUMAN_

30-Apr-07 1:07

You can use Web Browser Control-CWebBrowser2 / CHtmlView

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Paresh Chitte30-Apr-07 1:17

Paresh Chitte

30-Apr-07 1:17

Try using Web Browser control.

Regards,

Paresh.

Joan M30-Apr-07 2:02

Joan M

30-Apr-07 2:02

There are some articles regarding this topic in CP... http://www.codeproject.com/miscctrl/#HTML+Browser+Controls[^]

Hope this helps...

David Crow30-Apr-07 3:04