C / C++ / MFC

6-Nov-02 4:02

I have use SetParent api function to set a application' main form as the child of another application's main form. The api returns TRUE. But the child window dosen't update UI until I minimize and restore the parent window. Anyone can tell me why? Thanks a lot.

bill

Hans Ruck6-Nov-02 7:15

6-Nov-02 7:15

From MSDN:

Windows 2000: When you change the parent of a window, you should 
synchronize the UISTATE of both windows. For more information, see
WM_CHANGEUISTATE and WM_UPDATEUISTATE.

Maybe this is the problem.

rechi

billhao6-Nov-02 13:39

6-Nov-02 13:39

Thanks rechi. I have seen this in MSDN. This message is about user input synchronize, but my problem is user interface, the child window dosen't paint.
You can download the test program at http://www.minivoice.com/ShedExtension.exe http://www.minivoice.com/Shed.exe

Then put them in same folder and run shedExtension.exe.

bill

billhao6-Nov-02 13:45

6-Nov-02 13:45

Thanks rechi. I have seen this in MSDN. This message is about user input synchronize, but my problem is user interface, the child window dosen't paint.
You can download the test program at http://www.liao.cc/down/ShedExtension.exe
http://www.liao.cc/down/Shed.exe

Then put them in same folder and run shedExtension.exe.

bill

Hans Ruck7-Nov-02 3:01

7-Nov-02 3:01

When editing the parent dialog's properties, check Clip Children style.

rechi

billhao7-Nov-02 14:01

CRectTracker question ...

7-Nov-02 14:01

Rechi, thank you very much.
Do you use any instant message tool?

bill

Maximilien6-Nov-02 3:49

Maximilien

6-Nov-02 3:49

I use a CRectTracker on my WM_LBUTTONDOWN callback, and it's working ok, but the problem is that it eats my WM_LBUTTONUP, which I need to do additional processing.

Is it kosher to call PostMessage(hwnd, WM_LBUTTONUP ) at the end of the bottom down callback ? Or is there another way ? I've tried it, and luckilly, it works, I only receive one WM_LBUTTONUP, but it doesn't feel good !

void CTrackerTestView::OnLButtonDown(UINT nFlags, CPoint point) 
{
  TRACE( "CTrackerTestView::OnLButtonDown\n" );
  CRectTracker tracker;
  BOOL bRetVal = tracker.TrackRubberBand( this , point, true );
  CView::OnLButtonDown(nFlags, point);

  this->PostMessage(WM_LBUTTONUP ); // send button up ...
}

Thanks!

Max.

Re: CRectTracker question ...

Stephane Rodriguez.6-Nov-02 3:51

Stephane Rodriguez.

6-Nov-02 3:51

Bad idea, you should let mouse messages live normally.

I'll recommend to check out a MSDEV sample code called "DrawCli" : fine implementation there.

Back to real work : D-24.

Re: CRectTracker question ...

Maximilien6-Nov-02 4:21

Maximilien

6-Nov-02 4:21

Yep, but different approach, they draw the rectangle by hand with DrawFocusRect.
maybe I'll change ALL ( sigh ) my code to see it it can be done that way !

Don't worry, it's not that bad !

Thanks.

Max.

dll and lib

SimonBar6-Nov-02 3:28

SimonBar

6-Nov-02 3:28

hi,
i've got dll and lib files that i need to combine in my project.
the dll & lib were created in BORLAND env.
the thing is that the compilation works but the linker says:
"fatal error LNK1136: invalid or corrupt file"

1- is there any problem importing lib from Borland to visual?
2- how to import the lib?

love,peace and harmony to everyone!

Re: dll and lib

Tim Smith6-Nov-02 3:51

Tim Smith

6-Nov-02 3:51

You need a VC lib file, not a Borland.

Tim Smith

I'm going to patent thought. I have yet to see any prior art.

Re: dll and lib

Stephane Rodriguez.6-Nov-02 3:49

Stephane Rodriguez.

6-Nov-02 3:49

MS did a fine job of making lib files proprietary. You not only need a .lib file created by MSDEV, you also need it in the right MSDEV version (for instance .lib files created with MSDEV 6 won't (by default) link with MSDEV 5).

Back to real work : D-24.

Re: dll and lib

Jon Hulatt6-Nov-02 4:55

Jon Hulatt

6-Nov-02 4:55

You'll have to LoadLibrary() and GetProcAddress().

Signature space for rent. Apply by email to....

CToolbar and Tooltips

Patrik Mueller6-Nov-02 3:23

Patrik Mueller

6-Nov-02 3:23

Hi,

I've got a problem with a multilanguage project. At application start I read all GUI strings from a file (this is a must because our customer wants to change the texts) inside memory. If the user changes the language at runtime I have to change all the GUI strings.
No my problem: how can I change the tooltip and statusbar texts for buttons inside a toolbar?

Best regards,

Patrik Müller

Re: CToolbar and Tooltips

Roger Allen6-Nov-02 7:21

Roger Allen

6-Nov-02 7:21

Every toolbar button should have a string table entry for it with the same ID. It will be of the form:

Status bar prompt\nTooltip to be displayed.

Now by default the CMainFrame class uses the GetMessageString() function to return the status bar prompt for menu/toolbar buttons and tooltips. You will need to override this function and re-direct the code to get the string that you want from your loaded list.

Take a look at the functions default implementation and modify your own version from that.

Roger Allen
Sonork 100.10016

I have a terminal disease. Its called life!

Re: CToolbar and Tooltips

Patrik Mueller7-Nov-02 19:46

Patrik Mueller

7-Nov-02 19:46

OK,

I'll try it if I got time.
Many thanks for your help!

Best regards,
Patrik Müller

Hide and show the Menu of a MDI application

Cristiano G.6-Nov-02 3:00

Cristiano G.

6-Nov-02 3:00

Is it possible to hide and show the main menu
of a MDI application ???

I'd like to let the menu to be not visible as default
and to show it when the mouse goes on its position.
(See taskbar behavior)

What have I to do ?

Thanks a lot !!!;)

Re: Hide and show the Menu of a MDI application

Hans Ruck6-Nov-02 6:45

Re: Hide and show the Menu of a MDI application

6-Nov-02 6:45

To hide:

p=GetMenu();
SetMenu(NULL);
p->DestroyMenu();

To show:

p=new CMenu;
p->LoadMenu(MAKEINTRESOURCE(IDR_MAINFRAME));
SetMenu(p);
delete p;

I've tested it on a SDI and i found a problem on closing the program: the frame always assumes that the menu is present and attempts to destroy it. Probably you must - sometimes formally - have the menu loaded before closing.

rechi

Cristiano G-6-Nov-02 23:30

Cristiano G-

6-Nov-02 23:30

I have used your indication in my project but
I have found a problem:

the debug version of a MDI project verifies
the menu status and ASSERT if the menu is not
visible.
So I can use this functionality only in release
version...
What do you think about this problem ?
Have you got any other indication ?

Thanks a lot!!

Re: Hide and show the Menu of a MDI application

Hans Ruck7-Nov-02 0:03