Painting Toolbar's parent window while it is floating - C / C++ / MFC Discussion Boards

Re: Set current date and time from the computer.Pls Help..Thanks

dianazheng19-Dec-02 15:22

19-Dec-02 15:22

Really thanks for your help,i can display the date and time directly from the computer but now i have face with another problem hope you can help me also...Thanks

I have this two error

C:\Program Files\Microsoft Visual Studio\VC98\MFC\SRC\DLGDATA.CPP(170) : error C2065: '_countof' : undeclared identifier

C:\Program Files\Microsoft Visual Studio\VC98\MFC\SRC\DLGDATA.CPP(181) : error C2065: 'AfxSetWindowText' : undeclared identifier

which i really don't know what are they but they come from the function below...Hope you can help...

AFX_STATIC void AFX_CDECL _Afx_DDX_TextWithFormat(CDataExchange* pDX, int nIDC,
LPCTSTR lpszFormat, UINT nIDPrompt, ...)
// only supports windows output formats - no floating point
{
va_list pData;
va_start(pData, nIDPrompt);

HWND hWndCtrl = pDX->PrepareEditCtrl(nIDC);
TCHAR szT[32];
if (pDX->m_bSaveAndValidate)
{
// the following works for %d, %u, %ld, %lu
::GetWindowText(hWndCtrl, szT, _countof(szT));
if (!_AfxSimpleScanf(szT, lpszFormat, pData))
{
AfxMessageBox(nIDPrompt);
pDX->Fail(); // throws exception
}
}
else
{
wvsprintf(szT, lpszFormat, pData);
// does not support floating point numbers - see dlgfloat.cpp
AfxSetWindowText(hWndCtrl, szT);
}

va_end(pData);
}

Must I call DeleteObject after CStatic::SetBitmap ???

Daniel Strigl18-Dec-02 20:21

Daniel Strigl

18-Dec-02 20:21

I have a CStatic element on my dialog.

I use the following code to show different bitmaps:

<br />
myStatic.SetBitmap(::LoadBitmap(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDB_BITMAP1)) );<br />
...<br />
myStatic.SetBitmap(::LoadBitmap(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDB_BITMAP2)) );<br />
...<br />
myStatic.SetBitmap(::LoadBitmap(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDB_BITMAP3)) );<br />

One question: Must I call DeleteObject(...) when changing the bitmap or at the end of the dialog or does the CStatic this automaticly?

Daniel Wink | ;)

---------------------------
Never change a running system!

Re: CStatic - SetBitmap - DeleteObject ???

Christian Graus18-Dec-02 20:44

Christian Graus

18-Dec-02 20:44

I'd say the fact that SetBitmap returns the previous bitmap means you need to delete them Smile | :)

Christian

No offense, but I don't really want to encourage the creation of another VB developer.
- Larry Antram 22 Oct 2002

C# will attract all comers, where VB is for IT Journalists and managers - Michael
P Butler 05-12-2002

Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not
as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002

Re: CStatic - SetBitmap - DeleteObject ???

Daniel Strigl18-Dec-02 20:52

Daniel Strigl

18-Dec-02 20:52

Thanks Christian!

One question: When do you sleep? Sleepy | :zzz:

When I take a look on the CP forums, there is no question you don't post an answer! Wink | ;)

Daniel

---------------------------
Never change a running system!

Re: CStatic - SetBitmap - DeleteObject ???

Christian Graus18-Dec-02 21:11

Christian Graus

18-Dec-02 21:11

What's sleep ? I have young children.

Christian

No offense, but I don't really want to encourage the creation of another VB developer.
- Larry Antram 22 Oct 2002

C# will attract all comers, where VB is for IT Journalists and managers - Michael
P Butler 05-12-2002

Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not
as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002

Re: CStatic - SetBitmap - DeleteObject ???

Joan M18-Dec-02 20:45

Joan M

18-Dec-02 20:45

You must free it...

<br />
HBITMAP hOld = myStatic.SetBitmap(::LoadBitmap(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDB_BITMAP1)) );<br />
<br />
if (hOld)<br />
{<br />
  DeleteObject(hOld);<br />
}<br />

Hope this helps...

Re: CStatic - SetBitmap - DeleteObject ???

Daniel Strigl18-Dec-02 20:54

Daniel Strigl

18-Dec-02 20:54

Thanks!

Daniel Wink | ;)

---------------------------
Never change a running system!

Painting Toolbar's parent window while it is floating

Anonymous18-Dec-02 20:15

Anonymous

18-Dec-02 20:15

Hello Folks,
I Have a problem of painting the border window that appears when a tool-bar is in floating state.
How can i achieve this ?. I tried by creating an object of CTOOLBAR derived class.,so there's no need of subclassing.
And in the MainFrame Class ,i processed the wm_paint message where i checked the myToolBarobj.isfloating() ..and performed the futher operation. .its working ... but what if i need to trap the paint message or I need to change the Wndproc ?
Pl help if any solution of any kind is availabe.

How to open browser

Anonymous18-Dec-02 20:15

Anonymous

18-Dec-02 20:15

Hi,
Please tell me how to open browser in VC6.0..? I am displaying one url in my application I want that if I click that url it should open browser with the specified url...How to do that..Please help me.
Thanks in advance

Re: How to open browser

Christian Graus18-Dec-02 20:45

Christian Graus

18-Dec-02 20:45

ShellExecute a URL and the default browser will start.

Christian

No offense, but I don't really want to encourage the creation of another VB developer.
- Larry Antram 22 Oct 2002

C# will attract all comers, where VB is for IT Journalists and managers - Michael
P Butler 05-12-2002

Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not
as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002

Re: How to open browser

Rage18-Dec-02 21:46

Rage

18-Dec-02 21:46

Christian Graus wrote:
ShellExecute a URL and the default browser will start.

Exactly. If you need to handle your browser a little bit better, just use CreateProcess(). You may take a look at Mike's FAQ.

~RaGE();

Re: How to open browser

prateetibhargava18-Dec-02 23:54

prateetibhargava

18-Dec-02 23:54

ShellExecute worked...Thanks very much for the reply.
Prateeti

How to Draw on a ActiveX Control ?

chepuri_uk18-Dec-02 19:12

chepuri_uk

18-Dec-02 19:12

I want to draw on the ActiveX Control in Design Mode i.e
I placed a ActiveX control on the DialogBox, now i want to draw something on the control . How can i do this ?

Any help...

Thank you.

Re: How to Draw on a ActiveX Control ?

Itanium19-Dec-02 0:28

Itanium

19-Dec-02 0:28

I think (not sure) it is not possible to draw on Antivex Control at design time. You can only draw on it after getting its Device Context through Coding.

Exporting template class

Nilesh K.18-Dec-02 18:01

Nilesh K.

18-Dec-02 18:01

Hi,

I'm unable to export a template class from an MFC based dll !

any ideas of how I can do it ?

Ciao

- Nilesh

Re: Exporting template class

Christian Graus18-Dec-02 18:06

Christian Graus

18-Dec-02 18:06

Template classes are generated by their template arguments, they are in fact a little class factory. So I reckon you'll have trouble.

Christian

No offense, but I don't really want to encourage the creation of another VB developer.
- Larry Antram 22 Oct 2002

C# will attract all comers, where VB is for IT Journalists and managers - Michael
P Butler 05-12-2002

Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not
as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002

Re: Exporting template class

Paul M Watt18-Dec-02 18:27

Paul M Watt

18-Dec-02 18:27

You can export a template class as long as you force the compiler to create an instance of the class that you are trying to export. That is because a template is a compile time feature.

You can force the compiler to generate the code for a particular type of object by simply declaring a global variable of that particular type. But for each type you declare the size of your DLL will grow.

There is no way to export a template from a DLL, an retain the power that a template provides.

Would it simply be possible for you to distribute the header file with the template class in it instead?

Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!

Re: Exporting template class

Jeff J18-Dec-02 18:51

Jeff J

18-Dec-02 18:51

I once did what you are trying to do (for export to a non-C++ project), but as Paul mentioned, the benefits of templates are lost. One way is to create a non-templatised wrapper class, and wrap every single method so that it calls the template version. Make sure you inline everything to avoid extra call overhead. If you forget to wrap any methods, the compiler will not generate them at all. Of course, you will have to declare one specific type to be used with the exported class, hence the class will no longer be generic. You can create separate wrapper classes for different types, though your DLL will get rather large.

Cheers

How to get dimensions of client area without toolbars?

Mr.Freeze18-Dec-02 17:52

Mr.Freeze

18-Dec-02 17:52

Hi,

How can I get the position and dimension of my client area inside of my CFrameWnd without including the area of docked tool bars or status bars?

Thanks Smile | :)

Re: How to get dimensions of client area without toolbars?

Christian Graus18-Dec-02 18:07

Christian Graus

18-Dec-02 18:07

The docked toolbars sit inside a child window, if you could find that, you could get it's size and subtract it from GetClientRect.

Christian

No offense, but I don't really want to encourage the creation of another VB developer.
- Larry Antram 22 Oct 2002

C# will attract all comers, where VB is for IT Journalists and managers - Michael
P Butler 05-12-2002

Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not
as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002

Re: How to get dimensions of client area without toolbars?

Mr.Freeze18-Dec-02 19:15

Mr.Freeze

18-Dec-02 19:15

Thank you Christian,

I tried that, but when the toolBar is docked, it seems that the dimensions obtained with GetClientRect don't match the docking area. Also if I have several toolBars I have to check each single toolBar's status (docked or floating) and then its dimensions. Also what happens if several toolBars dock together on more than one row?

Re: How to get dimensions of client area without toolbars?

Christian Graus18-Dec-02 19:22

Christian Graus

18-Dec-02 19:22

The child window that holds the toolbars is called a CMiniDockFrameWnd. You need to find those, and grab their dimensions, I think. Or create a View, maximise it, and get IT'S dimensions.

Christian

No offense, but I don't really want to encourage the creation of another VB developer.
- Larry Antram 22 Oct 2002

C# will attract all comers, where VB is for IT Journalists and managers - Michael
P Butler 05-12-2002

Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not
as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002

Re: How to get dimensions of client area without toolbars?

Mr.Freeze19-Dec-02 15:04

Mr.Freeze

19-Dec-02 15:04

Thanks again Christian,

I guess I'll be able to do it with that!
Big Grin | :-D

Re: How to get dimensions of client area without toolbars?

Chris Richardson19-Dec-02 18:23

Chris Richardson

19-Dec-02 18:23

There is a CWnd member called RepositionBars. You can call it like this:

CRect a_oRealClientArea( 0, 0, 0, 0 );
pYourFrameWnd->RepositionBars( AFX_IDW_CONTROLBAR_FIRST, AFX_IDW_CONTROLBAR_LAST, 0, CWnd::reposQuery, &a_oRealClientArea, NULL, FALSE );

Chris Richardson

Programmers find all sorts of ingenious ways to screw ourselves over. - Tim Smith

Re: How to get dimensions of client area without toolbars?

Mr.Freeze19-Dec-02 19:33

Mr.Freeze

19-Dec-02 19:33

That's just perfect Chris, thanks a lot Rose | [Rose]

It is working very nicely now Cool | :cool:

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