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If I have a main dialog box, and On the click of a button I want a child dialog box to appear...what do I do?
I created a dialog box (with type child) and in the BNClicked method of the button I wrote.
void CMainDlg::OnAddChild()
{
CChildDlg* ChildBox = new CChildDlg;
ChildBox->DoModal();
}
But the images of the Main and the Child dialog boxes got superimposed (and got mixed up) during runtime. So someone suggested the following, but it still does not work!
void CMainDlg::OnAddChild()
{
CChildDlg* ChildBox = new CChildDlg;
if(!::IsWindow(GetSafeHwnd())) ChildBox->Create(IDD_AJOUT, this);
ChildBox->ShowWindow(SW_SHOW);
}
Please tell me how do I get my child dialog box to show properly?
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That's because you made it a type child, which means embedded in it's parent as opposed to a seperate dialog box. The suggestion you got was idiotic - it creates a modeless dialog and assumes it deletes itself ( because it's a pointer it won't die when it goes out of scope, nor do you have the address to interact with it or clean it up )
Christian
After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001
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I have dynamically linked MFC DLL. This dll works fine under my VC++ project but there is a problem when I'm trying to use it with Delphi app. All functions work fine except one (and only one) that use MFC. Here is the code:
DLL_EXPORT BOOL Configure(HWND hWnd) {
int iRes;
COptionsDlg dlg;
HINSTANCE h = (HINSTANCE)::GetModuleHandle("briz2.dll");
ASSERT(h);
HINSTANCE hPrevious = AfxGetResourceHandle();
AfxSetResourceHandle(h);
dlg.DoModal();
AfxSetResourceHandle(hPrevious);
return (iRes == IDOK);
}
Linkage and calling are fine. It crashes at DoModal(). It's seems like dlg isn't created.
Does anyone know the solution? (I don't wanna use API calls like DialogBox...;P)
Nev
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Add this as the first line in the function:
AFX_MANAGE_STATE(AfxGetStaticModuleState());
Look up the technical note on AFX_MANAGE_STATE for more details.
--Mike--
http://home.inreach.com/mdunn/
#include "witty_sig.h"
![Heart | [heart]](https://codeproject.freetls.fastly.net/script/Forums/Images/love.gif) your ![Green Alien | [Alien]](https://codeproject.freetls.fastly.net/script/Forums/Images/alien.gif) with ![Good Stuff | [The good stuff]](https://codeproject.freetls.fastly.net/script/Forums/Images/vegemite.gif) and ![Beer | [beer]](https://codeproject.freetls.fastly.net/script/Forums/Images/beer.gif)
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Works! Thank you!
Nev
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Hello,
I am planning to write a program that can record a sound from the mic.
I have no idee where to begin, what to learn, ... no idea! This mean any help/suggestion is welcome.
I thank you in advance.
Where there is a WISH, there is a WILL.
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Maybe try Microsoft Speech SDK?
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I am using this and have 4 columns set up number 0-3. I have tried using SetItem with an LVITEM but for some reason it isn't working. Can anyone help?
-Matt Newman
-Matt Newman
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m_ctlLVDirs.InsertColumn(0, _T("Alias"), LVCFMT_LEFT, 138, 0);
m_ctlLVDirs.InsertColumn(1, _T("Directory"), LVCFMT_LEFT, 160, 1);
m_ctlLVDirs.InsertColumn(2, _T("Default File"), LVCFMT_LEFT, 80, 2);
m_ctlLVDirs.InsertColumn(3, _T("Listing"), LVCFMT_LEFT, 60, 3);
m_ctlLVDirs.SetExtendedStyle(LVS_EX_CHECKBOXES | LVS_EX_INFOTIP | LVS_EX_GRIDLINES | LVS_EX_HEADERDRAGDROP);
LVITEM lvi;
CString strItem;
int i = 0;
for(i=0; i<10; i++)
{
int l;
l = i + 1;
lvi.mask = LVIF_TEXT;
lvi.iItem = i;
lvi.iSubItem = 0;
strItem.Format(_T("Alias %i"), l);
lvi.pszText = (LPTSTR)(LPCTSTR)(strItem);
m_ctlLVDirs.InsertItem(&lvi);
lvi.iSubItem = 1;
strItem.Format(_T("Dir %i"), l);
lvi.pszText = (LPTSTR)(LPCTSTR)(strItem);
m_ctlLVDirs.SetItem(&lvi);
strItem.Format(_T("Dir %i"), l);
m_ctlLVDirs.SetItemText(i, 1, _T("Dir"));
strItem.Format(_T("Default %i"), l);
m_ctlLVDirs.SetItemText(i, 2, _T("Default"));
strItem.Format(_T("Default %i"), l);
m_ctlLVDirs.SetItemText(i, 3, _T("FALSE"));
}
-Matt Newman
-Matt Newman
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Matt Newman wrote:
l = i + 1;
This is your problem. The index is 0 based; the insertion method works correctly, but inserts it at position i rather than i+1. Then, the rest of the code attempts to modify item i+1 which doesn't exist.
To fix this, you can either adjust your code to use i instead of i+1, or you can use the return value of InsertItem() which is the index the item was actually inserted at.
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Hi Matt,
I think Shog9 may have missed that you only use the variable 'l' for string formatting.
I think the SetItem here is working, the only problem is that you completely nuke the change after you've done it. You perform a SetItem on subitem 1 to set subitem 1's text to 'Dir 7', for example. Two statements on, you then set subitem 1's text to the constant string _T("Dir"). Is this what you were having a problem with? I removed the two lines:
strItem.Format(_T("Dir %i"), l);
m_ctlLVDirs.SetItemText(i, 1, _T("Dir"));
and got a list where column 1 had "Dir 1", "Dir 2" etc...
Is this what you were after?
------------------------
Derek Waters
derek@lj-oz.com
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Are columns zero based? I had set them up zero-based so the were 0,1,2,3 and the first column would show but none of the other three. I changed it to 1,2,3,4 in all it still won't show the 2,3,4 columns.
-Matt Newman
-Matt Newman
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What do you mean by won't show? Are the columns there? Are the fields empty?
I cut and pasted your code into a sample project and I had text in all four columns (they are 0-based), although the text for columns 1,2,3 didn't have numbers in them, just the words "Dir", "FALSE" etc.
I just thought of something - you do have the list defined as "LVS_REPORT" style and not "LVS_LIST" don't you?
------------------------
Derek Waters
derek@lj-oz.com
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All the columns show but there isn't anything in them. And it is set as report.
-Matt Newman
-Matt Newman
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Hmm, the only thing I can think of is that you use the return value from InsertItem in your subsequent calls:
int viInsertedAt = InsertItem(&tvi);
if (viInsertedAt != -1)
{
m_ctrlList.SetItemText(viInsertedAt, 1, _T("Dir"));
m_ctrlList.SetItemText(viInsertedAt, 2, _T("XXX"));
m_ctrlList.SetItemText(viInsertedAt, 3, _T("FALSE"));
}
viInsertedAt might not be equal to i if you have sorting or something else turned on? As I said, this code seemed to work fine for me.
------------------------
Derek Waters
derek@lj-oz.com
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Derek Waters wrote:
int viInsertedAt = InsertItem(&tvi);if (viInsertedAt != -1){ m_ctrlList.SetItemText(viInsertedAt, 1, _T("Dir")); m_ctrlList.SetItemText(viInsertedAt, 2, _T("XXX")); m_ctrlList.SetItemText(viInsertedAt, 3, _T("FALSE"));}
I tried this and put a message box if it made it there and what number it was on and it went 0 through nine but nothing. I am totally lost.
-Matt Newman
-Matt Newman
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What did SetItemText return?
------------------------
Derek Waters
derek@lj-oz.com
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False
-Matt Newman
-Matt Newman
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Right, I'm stumped. Do you want to send me your code?
------------------------
Derek Waters
derek@lj-oz.com
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I will email you the whole project tommorrow. It about 160 KB compressed. I need to sleep now.
-Matt Newman
-Matt Newman
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Stupid me. I was calling the function to fill the control before I declared the columns. Now it works. Thanks for trying to help.
-Matt Newman
-Matt Newman
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(Using WTL)
How can I put multiple template params (>1) in a macro definition?
I've been using CHAIN_MSG_MAP() to pass messages to templatized base classes with ease for quite a while now. But today I decided to get a little fancy & in turn break things horribly.
Take the following as an example, the first CHAIN_MSG_MAP works, but why does the second cause a host of compiler errors?
If I use a typedef of the multiple param base class, all will work - but why? There has got to be a method that feels less like a hack.
////////////
template <class T>
class CWorks
{
public:
BEGIN_MSG_MAP(CWorks)
END_MSG_MAP()
};
template <class T, BOOL bSomething>
class CBroken
{
public:
BEGIN_MSG_MAP(CBroken)
END_MSG_MAP()
};
class CMyWindow : public CWindowImpl<CMyWindow>,
public CWorks<CMyWindow>
public CBroken<CMyWindow, TRUE>
{
public:
BEGIN_MSG_MAP(CMyWindow)
CHAIN_MSG_MAP( CWorks<CMyWindow> )
CHAIN_MSG_MAP( CBroken<CMyWindow,TRUE> )
END_MSG_MAP()
};
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CHAIN_MSG_MAP( CBroken<CMyWindow,TRUE> )
Use a typedef to get rid of the comma (which is the source of the problem).
typedef CBroken<CMyWindow,TRUE> theBrokenClass;
CHAIN_MSG_MAP( theBrokenClass )
--Mike--
http://home.inreach.com/mdunn/
#include "witty_sig.h"
![Heart | [heart]](https://www.codeproject.com/script/Forums/Images/love.gif) your ![Green Alien | [Alien]](https://www.codeproject.com/script/Forums/Images/alien.gif) with ![Good Stuff | [The good stuff]](https://www.codeproject.com/script/Forums/Images/vegemite.gif) and ![Beer | [beer]](https://www.codeproject.com/script/Forums/Images/beer.gif)
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Hi all!
I made a tree in my dialog. I successfully inserted a few nodes to the tree. The problems arise when I try to access the node that is being selected. I always get a NULL pointer when I try to get the handle to the selected node. Can any one tell me what I miss?
When I insert the nodes, I ignore the *hItem* entry. Is it the cause, if so , how do you fix this?
Here is what I did. I used 2 ways and they both give me a null pointer return:
void CMyDlg::OnClickTreeview(NMHDR* pNMHDR, LRESULT* pResult)
{
NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;
HTREEITEM hSelectedNode =
pNMTreeView->itemNew.hItem;
//get the handle to the selected node
if (!hSelectedNode)
AfxMessageBox("fail to get the handle");
else
AfxMessageBox("Get the handle OK");
}
//*****************************
another way is:
CTreeCtrl * pTree =
(CTreeCtrl*) GetDlgItem(IDC_TREE);
HTREEITEM hSelectedNode =
pTree->GetSelectedItem();
//*******************************
Thank You
Vu
vucsuf
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