If you want to display one dialog at a time you have to do:

m_pChildDlg->setModal(false)

I’m extremely sorry, but I don’t get this.
Is it because I’m a grown up? Or it’s because I’m not smart enough? :D

Are you looking for MDI [developer.qt.nokia.com] per chance?

thanks fluca1978,

but i don’t want to make it modal. what i want is to stick this dialog with main dialog. just like button, label does. a child stick to maindialog which i could hide and unhide.

regards
D

Could you perhaps post a sketch of what you want to achieve?

deepak_smcet wrote:

thanks fluca1978,

but i don’t want to make it modal. what i want is to stick this dialog with main dialog. just like button, label does. a child stick to maindialog which i could hide and unhide.

regards
D

So you need a singleton dialog. What you have to do is something like this:

of course the pointer must be initialized to NULL at the beginning. So in this way you will make a single instance of the window available during the program, which is created the first time it is needed and is simply re-shown when called back again. There are other techniques to make singleton in a more elegant way, but this should suffice.

hello,

i am sorry if i am not able to communicate my question to you clearly. but thanks for you input.

there is a example here “I:\Qt\4.7.4\examples\dialogs\configdialog”. it makes use of QListWidget and QStackedWidget class. in the same way i want to have few buttons in the left side. and when i click on the different button i should display a different dialog(but the dialog should be embedded into the mail dialog just like in the example). the example make user of Qwidget class to create some demo pages.

since i am from MFC backgroud, all you have to do is to create the modalless dialog on Oninitiazedlg() and set the parent to the parent dialog. and then child dialog will be shown into the main dialog.

is there any way to upload a few kb source?
here is the MFC source:

the property is set to ‘child’ in the dialog editor of MFC.

regards
D

So you are not searching to display a dialog window, you are trying to display different widgets depending on the user selection on the left panel bar. There are different ways to achieve it, one it could be to use a stack layout. As you mentioned, take the config dialog example and implement it in a similar way. Just create a set of top level widgets that are containers for your right side widgets and display the top level containers when needed.

is there any other way to do it except using stacked containers? any simpler way? the reason i am using dialog is because i could make use to editor to place other items on it. but in the example, all the other controls are created dynamically.

regards
D

Using a QStackedWidget is really quite simple. You can do it completely using Qt Designer even, without writing code. No need to create dynamic controls.

is most likely to cause your trouble. Popups usually go away when they loos focus (what happens by clicking the main window). Just make it a regular window/widget and you’re done.

hello volker,

you are right but it did not solve the problem,

if i set it to

is there any way to upload small source file here in the post, i dont see such option

@Andre,

i will try your suggestion soon and update the post soon
regards
D

You have a completely independent window with your popup. To move it together with your mainwindow, you need to reimplement moveEvent and move your popup by the same amount as your mainwindow.

humm,

i just a read a post here
http://lists.trolltech.com/qt-interest/2002-12/msg01080.html
which says that
“Dialogs are ALWAYS toplevel widgets and are NEVER children of other widgets. If you specify a parent in a dialog it is only for positional reasions”

i think this is my mistake, i am trying to use a dialog as a widget. i mean i am trying to make it children of other dialog.

That “positional reason” is only for the initial display of the dialog.