dynamic change window style between ws_child and ws_popup

Question

0.00/5 (No votes)

See more:

hello everyone.there is a puzzle with me.in the main dialog there's a child dialog A,when i click a button,i want to popup the dialog A and show it on the taskbar.how to achieve it.

Posted 1-Jan-15 4:54am

koll Zhu

Add a Solution

Comments

Richard MacCutchan 1-Jan-15 11:08am

A child dialog does not show on the task bar. You could make it a stand alone dialog by setting the parent HWND to NULL. However, you need to understand that there may be unintended consequences of such actions.

koll Zhu 1-Jan-15 20:54pm

I have found this function within some apps.at the beginning,i used two dialog,created..destroyed..;i think it may be a waste because there's a method called "modifystyle".is there any advise?thank u.

Richard MacCutchan 2-Jan-15 4:21am

I am not sure what to suggest as it is not really clear what you are trying to achieve.

Sergey Alexandrovich Kryukov 1-Jan-15 15:55pm

Why?
And I would say, a window with WS_CHILD cannot be a "dialog". In what sense do you think it is a dialog?
—SA

koll Zhu 1-Jan-15 20:47pm

my app is based on MFC Muti-dialog,so i called all "dialog".

1 solution

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)

Kornfeld Eliyahu Peter · Answer 1 · 2015-01-01T07:51:00

MSDN:
After the window has been created, these styles cannot be modified

...So the only option is to make you window child of the desktop (set parent to none/null)...However such change can have unwanted effects, like wrong rendering (very common)...
Basically child window with no parent is forbidden so do not expect it behave well...

MSDN:
If you specify the WS_CHILD style in CreateWindowEx but do not specify a parent window, the system does not create the window.

You may destroy and re-create the window...