How To Get A Dialog's Properties?

Question

0.00/5 (No votes)

See more:

I want to control a dialog's property value . It has a property named TopMost. The values type of Property are true and false.
I have two dialog, one,screen, is to display DTV, another one is to control the screen's mode.
I want to make the screen dialog's Z-Order up to the TopMost.
How can I do to get the dialog property?

Could you give me some suggestion.
Thank you a lot.

Posted 4-Jul-12 21:00pm

fashionable0910

Updated 4-Jul-12 21:12pm

v3

Add a Solution

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Richard MacCutchan · Accepted Answer · 2012-07-04T22:20:00

Solution 1

Assuming you are using Win32 then you need to set and unset the dialog's WS_EX_TOPMOST style as described here[^].

Posted 4-Jul-12 22:20pm

Richard MacCutchan

Comments

fashionable0910 8-Jul-12 9:11am

Thanks for your answer. It's useful.
In fact,I need to add a button to control the screen status.
I don't know how to set the class wizard...

Richard MacCutchan 8-Jul-12 9:23am

In fact,I need to add a button to control the screen status. OK, add a button to the dialog and connect it to a handler.

I don't know how to set the class wizard. Sorry, I don't understand, the class wizard is invoked from the Visual Studio IDE, it has nothing to do with the way your dialog operates.

«_Superman_» · Accepted Answer · 2012-07-08T03:22:00

Solution 3

To change the z-order at runtime, use the SetWindowPos[^] function.

Posted 8-Jul-12 3:22am

«_Superman_»

Comments

fashionable0910 8-Jul-12 9:25am

I used the function.

The following is my code.

bool _Status=false;
BOOL screen::CheckScreenZOrder(bool _status=false)
{
if(_status==_Status)
{
_status=true;
CWnd::SetWindowPos(
&wndTopMost,
gcProgInfoPool.Video_Size.Video_X,
gcProgInfoPool.Video_Size.Video_Y,
gcProgInfoPool.Video_Size.VideoWidth,
gcProgInfoPool.Video_Size.VideoHeight,
SWP_SHOWWINDOW
);
return _status;
}
if(_status!=_Status)
{
_status=false;
CWnd::SetWindowPos(
&wndNoTopMost,
gcProgInfoPool.Video_Size.Video_X,
gcProgInfoPool.Video_Size.Video_Y,
gcProgInfoPool.Video_Size.VideoWidth,
gcProgInfoPool.Video_Size.VideoHeight,
SWP_SHOWWINDOW
);
return _status;
}

}

But I don't know how to add the code into a button.
Then make it work.

«_Superman_» 8-Jul-12 9:36am

Add the code to the BN_CLICKED notification handler. You can add the handler for BN_CLICKED using the class wizard. If you're using an MFC project, simply double clicking on the button will create the handler for you.

fashionable0910 8-Jul-12 10:39am

If I use the following code. The button can work

sc.SetWindowPos(&wndTopMost,
NULL,NULL,
/* gcProgInfoPool.Video_Size.Video_X,
gcProgInfoPool.Video_Size.Video_Y,
gcProgInfoPool.Video_Size.VideoWidth,
gcProgInfoPool.Video_Size.VideoHeight*/
NULL,
NULL,
SWP_SHOWWINDOW|SWP_NOSIZE|SWP_NOMOVE
);
But when I use the following code. The button can't work.

bool _status=false;
void CHitop_appDlg::OnBnClickedButton2()
{
if(_status=false){

sc.SetWindowPos(&wndTopMost,
NULL,NULL,
/* gcProgInfoPool.Video_Size.Video_X,
gcProgInfoPool.Video_Size.Video_Y,
gcProgInfoPool.Video_Size.VideoWidth,
gcProgInfoPool.Video_Size.VideoHeight*/
NULL,
NULL,
SWP_SHOWWINDOW|SWP_NOSIZE|SWP_NOMOVE
);
_status=true;
}
else if(_status==true)
{
sc.SetWindowPos(&wndNoTopMost,
NULL,NULL,
//gcProgInfoPool.Video_Size.Video_X,
//gcProgInfoPool.Video_Size.Video_Y,
//gcProgInfoPool.Video_Size.VideoWidth,
//gcProgInfoPool.Video_Size.VideoHeight
NULL,
NULL,
SWP_SHOWWINDOW|SWP_NOSIZE|SWP_NOMOVE
);
_status=false;
}
}

armagedescu · Accepted Answer · 2012-07-09T01:13:00

I don't understand the question. But if you want to show your window on top of other ones, then you need to call BringWindowToTop. If you want to bring the window to top and make it active, you should call SetForegroundWindow instead.
If you want to change the top most attribute, then you have to get it by GetWindowLong and set by SetWindowLong. Read more about windows styles and extended styles.