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Hello,
I have a list view type MDI, I also have a MM Timer with in the CMainFrame. I am trying to assign a pointer to my list control from CMainFrame to get the number of items in the list control (inside the MM timer function). When I run the following code it crashes my app..
int count;
CListView* pList = (CListView*)(MDIGetActive()->GetActiveView());
count = pList->GetListCtrl().GetItemCount();
Is there a better way to get a pointer to CListView that wont crash my app?
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Never mind.. I just moved the MM Timer to my CListView derived class and everything is working fine.. tnx anyways
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hi,
how exactly is an ascii code converted into a character on the VDU?
If it is hardware embedded then how are japanese and chinese characters displayed even in dos?
-very curious
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It is not hardware embedded. VDUs are raster-based, much the same as your TV: the OS basically draws the characters according to the font selected.
In the old days, so called ASCII terminals did the presentation internally --in those situations one could have problems displaying foreign characters.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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I have a CPropertySheet which has two property pages in Wizard mode. In my OnWizardFinish handler on the second page I do an EndDialog(IDOK). I then call another modal dialog, dialogB. The wizard dialog does not go away until dialogB is dismissed and the return from the OnWizardFinish is executed.
- Is there anyway to make the wizard dialog go away immediatly, the EndDialog does not seem to do it?
- I've unchecked the System Menu resource from the wizard dialog. The CPropertySheet puts the system close button (X) in the upper right corner. Is there a way to remove it?
Thanks in advance,
Bob
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As for your first question, probably calling CMyPropertySheet::ShowWindow(SW_HIDE) before launching the second dialog will do.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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Thanks for your response. This has no effect, the dialog is still behind the latest one, as it was before.
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You sure? Try this sequence:ShowWindow(SW_HIDE), launch dialog, EndDialog.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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Are you calling ShowWindow( SW_HIDE ) directly from within the OnWizardFinish() handler, or are you calling GetParent() -> ShowWindow( SW_HIDE )?
As for the system menu, you can try specifying WS_POPUP without WS_SYSMENU when you create the Property Sheet, or modifying the Sheet's styles after creation.
Unchecking the System Menu in the Dialog/Resource Editor does little for you in this case, because the dialog editor is used to modify the Pages, not the Sheet.
Peace!
-=- James.
"Fat people are hard to kidnap."
(Try Check Favorites Sometime!)
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James,
The GetParent()->ShowWindow(SW_HIDE) does the trick, thanks.
How would I modify the Sheet's style after creation to have WS_POPUP without WS_SYSMENU? I assume I would do it in it's OnInitDialog()?
Thanks,
Bob
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I've got it, it's ModifyStyle (WS_SYSMENU, 0) in the Sheet's OnInitDialog.
Thanks for your help.
Bob
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why not just have whatever called the CPropertySheet call the dialog whenever it returns?
if (MySheet.DoModal() == ID_WIZFINISH)
{
dialogB.doModal();
}
if you have a good reason then ignore my question 
-dz
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Since i'm new here i don't really know if you use to check old topics... if not, check this one and help me please:
http://www.codeproject.com/script/comments/forums.asp?msg=180313&forumid=1647&kw=phoenix#xx179201xx
Stay cool :p
Phoenix
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I have a worker thread that is carelessly updating the status bar. It's causing a GPF. This involves a large complex application framework, which isn't easily changed. I would like to change my MFC status bar code to be thread safe. Is there a way to do this? Would this work: Have the status bar store a HWND, and whenever accessed, construct a CStatusBar FromHandle?
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Create a user defined message and make the thread post it from time to time to the main application thread (i.e the one that owns CMainFrame). Then all the updated will be done by the thread that owns the status bar.
In that message you will send the completion percent (10%, 20%). Read this article by Joseph M. NewCommer: Using Worker Threads
Best regards,
Alexandru Savescu
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Is there an easy way to determine if I'm in a worker thread vs the main thread? I tried calling:
if( AfxGetMainWnd() )
expecting that it would return NULL if it was the worker thread, based on an article by NewComer on CodeProject. However, it didn't return null in the worker thread. Any ideas?
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hi
when i tried to declare an object that take CString constructor as follow:
Group groupA("France", "Senegal", "Uruguay", "Denmark");
it just give me this error:
: error C2059: syntax error : 'string'
and this is my constructor implementation:
Group::Group(CString t1,CString t2, CString t3, CString t4)
{
team.Add(t1);
team.Add(t2);
team.Add(t3);
team.Add(t4);
}
and i've tried this one also and by the way what is LPCTSTR??
Group::Group(LPCTSTR t1, LPCTSTR t2, LPCTSTR t3, LPCTSTR t4)
{
team.Add(t1);
team.Add(t2);
team.Add(t3);
team.Add(t4);
}
What is going on??? Thanks heap for you help
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Hm, maybe there's a problem with the team member variable. How it is defined?
A LPCTSTR is a const pointer to an ASCIIZ string. If it's really ASCII/ANSI or Unicode depends on your compiler settings.
Martin
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looks like you're using a type called "string" somewhere, but you haven't #include'd the appropriate header.
where does the syntax error occur??
LPCTSTR is a pointer to an array of TCHARs. a TCHAR is some character type (char, wchar, etc) depending on your build settings.
-c
"Should you not have a ramekin of sea salt beside the stove, you don’t deserve oatmeal."
Dean Allen
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The code
Group groupA("France", "Senegal", "Uruguay", "Denmark");is not passing CString objects to the constructor.
This code
Group groupA(CString("France"), CString("Senegal"), CString("Uruguay"), CString("Denmark"));is.
The code
Group::Group(LPCTSTR t1, LPCTSTR t2, LPCTSTR t3, LPCTSTR t4) should work unless team.Add(...) is also wanting a CString object.
Hope this helps...
Jonathan Craig
www.mcw-tech.com
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LPCTSTR = Long Pointer Constant To String Portable for UNICODE.
If you use the CString constructor you must pass CString objects not a char*
You can cast them directly
Group (CString ("France"),...)
but it is not worth it becasuse it will create some useless objects.
Use LPTSTR = Long Pointer To String Portable for UNICODE. You can see it is not a constant.
Best regards,
Alexandru Savescu
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yeah, i understand it now. however it keeps produce another error.
this my class definition for the Group Class
class Group
{
public:
Group::Group(CString t1, CString t2, CString t3, CString t4);
CString Group::GetTeam(int i);
void Group::PutResult(int t1, int s1, int t2, int s2);
void Group::GetLadder();
private:
CStringArray team;
int res[4][4];
};
and this is my implementation for the constructor:
class Group
{
public:
Group::Group(CString t1, CString t2, CString t3, CString t4);
CString Group::GetTeam(int i);
void Group::PutResult(int t1, int s1, int t2, int s2);
void Group::GetLadder();
private:
CStringArray team;
int res[4][4];
};
and this is how i used it in the Doc
Group groupA(CString("France"), CString("Senegal"), CString("Uruguay"), CString("Denmark"));
and this is the error it produces
unexpected 'class CString ('
Regard
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1. It looks that you missed the copy paste thing. The implementation and the source code look the same [ ]
2. Why do you prefix the functions inside the class?
class A
{
int A::f (); // you can say int f()
}
Best regards,
Alexandru Savescu
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yes indeed, i missed the copy and paste
the function looks like this:
Group::Group(CString t1, CString t2, CString t3, CString t4)
{
team.Add(t1);
team.Add(t2);
team.Add(t3);
team.Add(t4);
}
and thanks for the tips, i did not know it before since i've just been working with MFC for 1 week.
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I have this line in debug window:
HEAP: Free Heap block 14993bc8 modified at 14993bf4 after it was freed
Can anyone tell me what is that exactly I what can I do to correct this error.
Tanks...
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