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I want to postmessage my parent View when the CDialog it spawns is moved/resized. SO I put in the WM_ON_SIZING handler in the CDialog and when I debug it doesnt ever step into the OnResizing function even if I resize/move the CDialog....so I even tried putting my postmessgae in Onsize (*except I'm not changing its size, just the location....and it didnt step into OnSIze either (just moving not resizing...)
Help!
Appreciate your help,
ns
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What messgage is sent when I move and or resize a window? What function do i Need to pinpoint he fact that I moved, dynamically?
Appreciate your help,
ns
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And it tells me that WM_MOUSEMOVE is issued...but thats if I move the mouse anywhere on the dialog. No other message is there in the running list...
Appreciate your help,
ns
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ns wrote:
I want to postmessage my parent View when the CDialog it spawns is moved/resized.
Why?
To find out if a window moves try checking WM_MOVE, and/or WM_SIZE.
Neville Franks, Author of ED for Windows. www.getsoft.com
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Why ? Because the parent remembers the location and size of the CDialog even after its dismissed and a new one is created later at the same location..also to save info to th eregistry at the end..
Thanks so much for the help!
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I got my problem resolved. I'd never used WM_MOVE before. As for the OnSizing, I was expecting it to fire if I just moved, but not resized. Which was the wrong function to look at for simply moving....
Thanks. Learned a lot!
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I need to know if I am understanding this properly:
If I want to display the time (in text) for a given number of seconds (dwSec) since Jan1, 1970 (in UTC), would I need to adjust the dwSec for the difference in time zones first before calling CTime::Format()?
Does this look right?:
DWORD dwSec = 1045688797; //Feb 19 21:06:37 2003 UTC (I think)
CTime tLoc((time_t)dwSec);
CString szLocal = tLoc.Format("%m/%d/%Y %H:%M:%S");
//Adjust for time zone diff before calling CTime::Format
//for UTC in text format:
dwSec += (tzinfo.timezone * 60);
//Adjust for DST:
if (tzinfo.dstflag)
dwSec -= 3600;
CTime tUTC((time_t)dwSec);
CString szUTC = tUTC.Format("%m/%d/%Y %H:%M:%S");
If there is a better way, I would appreciate any tips, but I still need to know if the above is correct.
Thank you very much.
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I am wondering where I should put the On_WM_SIZING :
afx_msg void OnSize(UINT nType, int cx, int cy);
<code> afx_msg void OnSizing( UINT nSide, LPRECT lpRect);</code> here????
afx_msg void OnGetMinMaxInfo(MINMAXINFO* pMMI);
DECLARE_MESSAGE_MAP()
<code> afx_msg void OnSizing( UINT nSide, LPRECT lpRect);</code> or here????
Similarly:
BEGIN_MESSAGE_MAP(CResizeableFileDialogParentWnd, CDialog)
ON_WM_SIZE()
<code>ON_WM_SIZING()</code>
ON_WM_GETMINMAXINFO()
<code>ON_WM_SIZING()</code>
END_MESSAGE_MAP()
Appreciate your help,
ns
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Anytime you edit the message maps manually, put your changes outside the //{{AFX //}}AFX section to avoid breaking ClassWizard.
--Mike--
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Thanks. I put them in the proper place now...
Appreciate your help,
ns
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Hi,
I am beginning to write Windows applications and i have running into a few problems.
Environment: WinXP pro, Visual C++ 6.0 SP5
I currently have a dialog box with a few CEdit controls. When I try to debug my program using breakpoints or the run command (F5), the program breaks into assembly code as soon as I try to type anything into the CEdit controls. After a few 'steps' i get a message in the output pane: "First Time Exception: Integer Divide by Zero." I can push buttons though without any trouble. Using the execute (CTRL-F5) i can get to program to run fine, but obviously no debugging.
After a fair bit of swearing and searching it seems to happen when the program needs to write to a CEdit control.
A friend of mine has the same problem on windows 2000. I tried my program on my gf's computer running Win98SE and it works fine.
last bit of information, I tried running a demo from the book "Introduction to MFC" by deitel & deitel (not worth the money, btw) and it presents the same behaviour under WinXP and runs fine under Win98
Thanks a bunch
Marc
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If your seeing Assembler instead of C++ it means that the C++ source code isn't available. When you install VC++ make sure you install the MFC and CRT source code. You can go back and install just the bits you want later on.
A "First Time Exception" exception is one that is caught, probably by a try - catch block. You should be able to see precisely why the divide by zero is occuring.
Don't fool yourself into thinking everything is fine just because it appears to run ok on some other machine or version of Windows.
Neville Franks, Author of ED for Windows. www.getsoft.com
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Hi:
I'm a VC++ beginner and i want to write a Custom EDIT-BOX activex that work with different language (not english) for example arabic keyboard so i need to set text-alignment to right, in the other hand i want to show Text in the control in a Right-To-Left-Reading-Order programaticaly. also i need to move cursor in edit box to left not right(by default.)
How can i do this ? is there any API for this purpose? Please Help me.
please excuse me for bad comments.
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your project requirements are inappropriate for a "VC++ beginner"
"That's just my opinion... I could be wrong."
"No matter where you go, there your are..." - Buckaoo Banzi
-pete
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Hi
A very unexpected error happened...below is the code snippet.
CMy3027View *pView;
CMainFrame *pMF = (CMainFrame*)AfxGetMainWnd();
pView = (CMy3027View*)pMF->GetActiveView();
m_numOfValues= pView->m_imageIndex;
where m_numOfValues is declared as a class member variable(integer),
m_imageIndex is a public member variable of my CView class.
1.
On debugging,pView->m_imageIndex is working fine but m_numOfValues just doesnt get assigned. It even ran into exception error.
2.
In a previous version of the same program, the same method of assignment had work fine. I have no idea why it's not working suddenly.
3.
When i try declaring m_numOfValues locally(in the function) instead, the assignment work fine.
4.Another problem is i declared
CMy3027View *pView;
in my class's header file, under private.But after assigning it in a member function, the subsequent functions do not see the assigned value.
Anyone has any idea wat's happening?
pls help..
thks
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In relese that assigment might be optimized, so it is not surprizing you do not see it. As for the exception the code below might show you the problem
raner wrote:
pView = (CMy3027View*)pMF->GetActiveView();
if(0 == pView)
MsgBox("This is the problem");
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oh yah, i do get the "This is the problem" message box..but what does it mean?;P
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it means the GetActiveView() stopped worked in your program. Check carefully what it does (if you have source control check what it used to do)
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what is source control?...i thought it simply gets the MainFrame pointer and then the active view's pointer?
anyway...i don't understand how GetActiveView() can just stop working?
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Downcasts are always unsafe. Are you sure that the CView* returned by GetActiveView() is a CMy3027View*? If it's not, the program may bomb...
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i don't know how to see that the returned pointer is a CMy3027View*..but i've only one CView-derived class so i thought it should be?
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Try to use a dynamic_cast. If the returned value is NULL, then the pointer is not of that class.
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How do i use dynamic_cast?...sorry,i've heard of it but i've never tried anything like that..
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Do this:
pView = dynamic_cast<CMy3027View*>(pMF->GetActiveView());
if(pView)
m_numOfValues= pView->m_imageIndex;
You might have to turn on the RTTI option in VC.
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