C / C++ / MFC

17-May-06 21:18

Hi all,

I have a child control in my dialog app. I changed it to popup by using ModifyStyle. The style is changed, but its behaviour is still as child. I mean, it is not getting top of the other controls, like popup dialogs do.

Is it wrong to change from child to popup?

Thank you.

- NS -

_AnsHUMAN_ 17-May-06 21:49

_AnsHUMAN_

17-May-06 21:49

What type of control? and is it a bitmap on top of the dialog.

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

_AnShUmAn_

Nibu babu thomas17-May-06 21:53

Nibu babu thomas

17-May-06 21:53

NS17 wrote:
The style is changed, but its behaviour is still as child. I mean, it is not getting top of the other controls, like popup dialogs do.

Try calling BringWindowToTop after changing style for the control.

Nibu thomas
Software Developer

Faqs by Michael dunn

Nishad S17-May-06 22:24

17-May-06 22:24

Nibu thomas wrote:
Try calling BringWindowToTop after changing style for the control.

It cannot fix the problem... Frown | :(

- NS -

Nibu babu thomas17-May-06 22:38

Nibu babu thomas

17-May-06 22:38

Try hiding and showing it again. Smile | :)

Nibu thomas
Software Developer

Faqs by Michael dunn

Nishad S17-May-06 22:46

17-May-06 22:46

No way

- NS -

_Beren_17-May-06 22:01

17-May-06 22:01

HI,

I'm a little confused about what you want to get changin' the control style from Child to Popup.

A child window apears in the client area of the parent window, as opposed to the popup windows that appears outside.

NS17 wrote:
mean, it is not getting top of the other controls, like popup dialogs do.

Reading your question i think you want to put your control over another child control inside the client area of your application's window. To do this you simply call the API function SetWindowPos(HWND Window, HWND IsertAfter, ...., int flags). On successful completion, Window gets over InsertAfter. Remember, if you don't want to move nor resize the control you can pass as flags (SWP_NOMOVE|SWP_NOSIZE).

Hope this will be helpfull.

Beren

Naveen17-May-06 22:14

Naveen

17-May-06 22:14

But there is a problem..

Consider There is an edit control and a staic control in the dialog.. Using the SetwindowPos I moved the staic control over the edit control( only half overlapped). But now if I clicked in the edit control, it will paint over staic control..

nave

_Beren_17-May-06 22:19

17-May-06 22:19

You can always process the WM_SETFOCUS (or similar) message and the bring the window to the background/front Big Grin | :-D

Naveen17-May-06 22:33

Naveen

17-May-06 22:33

But consider if static control was created as popup window we need not have to take care of any message.. The underliying edit control will never draw over it..

nave

Nishad S17-May-06 22:17

17-May-06 22:17

No, that is not what I want...
I just want it as Popup, like the popup dialogs. I should not be clipped by the client of the parent.

- NS -

_Beren_17-May-06 22:24

17-May-06 22:24

Then,

depending on the type of the control you want to make "popup" there can be different approaches, but you can try to make a popup window (a real window) and moving the control to that window using SetParent/SetOwner.

Beren

Nishad S17-May-06 22:31

17-May-06 22:31

The control is custom calendar derived from CMonthCalCtrl. It is created as a dlg item and a member variable is assigned. So it is basically a child. Now I want to give it popup style with out changing the parent, because the parent needs the messages from it.

Please note that if we create the same control dynamically with popup style it is working fine.

- NS -

Laxman Auti17-May-06 22:52

Laxman Auti

17-May-06 22:52

try using SetWindowLong and GetWindowLong

SetWindowLong(GetSafeHwnd(),GWL_STYLE,~WS_CHILD & WS_POPUP | GetWindowLong(GetSafeHwnd(),GWL_STYLE));
	RedrawWindow(NULL,NULL,RDW_ERASE | RDW_INVALIDATE | RDW_FRAME | RDW_ALLCHILDREN);

Change the hwnd parameter of the SetWindowLong And GetWindowLong of which you want to change the style.

Knock out 'T' from CAN'T ,
You 'CAN' if you think you 'CAN'
Cool | :cool:

_Beren_17-May-06 23:07

17-May-06 23:07

I have tested it... and this code will do the job:

<br />
    {<br />
      long x;<br />
      // B!: Control to change<br />
<br />
      x=GetWindowLong(B1, GWL_STYLE);<br />
<br />
      x&=~WS_CHILD;<br />
      x|=WS_POPUP;<br />
<br />
      SetWindowLong(B1, GWL_STYLE, x);<br />
      UpdateWindow(B1);<br />
      SetParent(B1, NULL);<br />
<br />
      // You may want to move the control somewhere since<br />
      // previous coord was Client Coords.. control gets <br />
      // misplaced<br />
      SetWindowPos(B1, NULL, X, X, 0, 0, SWP_MOVE|SWP_NOSIZE|SWP_NOZORDER);<br />
    }<br />
<br />

Nishad S17-May-06 23:09

17-May-06 23:09

I can't change the parent. Messages are going to the parent.

- NS -

_Beren_17-May-06 23:41

17-May-06 23:41

I'm getting more and more confused...

WS_CHILD is not compatible with WS_POPUP, so your control is a child window or a popup window, can't be an hybrid. If you change WS_CHILD to WS_POPUP then you must change the parent window to NULL. See SetParent on MSDN remarks section:

For compatibility reasons, SetParent does not modify the WS_CHILD or WS_POPUP window styles of the window whose parent is being changed. Therefore, if hWndNewParent is NULL, you should also clear the WS_CHILD bit and set the WS_POPUP style after calling SetParent. Conversely, if hWndNewParent is not NULL and the window was previously a child of the desktop, you should clear the WS_POPUP style and set the WS_CHILD style before calling SetParent.

If the control have a parent differen than the Desktop your control MUST be WS_CHILD, otherwise it MUST be WS_POPUP.

-- modified at 5:47 Thursday 18th May, 2006

Nishad S18-May-06 0:13

18-May-06 0:13

_Beren_ wrote:
WS_CHILD is not compatible with WS_POPUP

I use ModifyStyle( WS_CHILD, WS_POPUP ); to change the style.

_Beren_ wrote:
If you change WS_CHILD to WS_POPUP then you must change the parent window to NULL.

If I create the control dynamically as popup its parent can be dialog wnd. And it is working fine as I desired. The dialog wnd is passed as the parent to create the control. And using a spy I can identify that the parent is the dialog itself.

I just want to make the control created as child, to be the same as I created dynamically. Hope you can understand what I am trying to do. Smile | :)

- NS -

SetWindowText Error

VinayCool17-May-06 21:16

17-May-06 21:16

Hi,

I have long value i am want to show in the dlg i used below code but its giveing error can any one help me with this..

long n;
n=INDX.total_words;
status->m_TOTAL_WORDS.SetWindowText(n);

---------------
Error
---------------

error C2664: 'SetWindowTextA' : cannot convert parameter 1 from 'long' to 'const char *'
Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast
----------------------------------------

Regards,
Parichay.

Cedric Moonen17-May-06 21:21

Cedric Moonen

17-May-06 21:21

The function SetWindowText expect a char array, not a long. So use sprintf to convert this value into a char array:

char szBuff[50];
sprintf(szBuff,"%l",n);
status->m_TOTAL_WORDS.SetWindowText(szBuff);

Cédric Moonen
Software developer

Charting control

VinayCool17-May-06 21:38

17-May-06 21:38

Hi Cedric Moonen,

Thanks for the reply,

I used the code as u have said error has gone, but the value is nt displayed in the dialog, what will be the cause ??

I used F5 and checked the n value its getting the the value correctly 72986
but its nt displaying.

IDC_TOTAL_WORDS with member of type CEdit m_TOTAL_WORDS

Hamid_RT17-May-06 21:32

Hamid_RT

17-May-06 21:32

TCHAR buffer[50];
long a=20;
_ltoa(a,buffer,10);
status->m_TOTAL_WORDS.SetWindowText(buffer);

whitesky

VinayCool17-May-06 21:42

17-May-06 21:42

Hi WhiteSky,

Thanks a lot its working ...... Smile | :)

TCHAR buffer[50];
long n=INDX.total_words;
_ltoa(n,buffer,10);
status->m_TOTAL_WORDS.SetWindowText(buffer);

VinayCool17-May-06 21:58