Hi, You are trying to initialize a reference to CListBox, in which case you need to give proper object. NULL is nothing but a typedef of '0'. To solve your problem try to use a pointer variable instead of reference variable. CListBox *pListBox = NULL;

I have a Windows service written in C#, that needs to load a C++ SDK. I have written CLI classes, that acts as a bridge. The problem is that my CLI code fails at the point where it makes call to the C++ SDK. I am not getting any error message also. It just hangs. If I try the same from Win Forms application, I did not see any problem. For me it looks like there is issue only when using Windows service. Is it possible to consume CLI\C++ dll's inside windows serive? Please clarify me on this.. Any link related to the problem will be much helpful.

My application has UI in C#, and buisness logic in MFC/VC++. The connection between Managed and unmanaged code are provided using ManagedC++. Now I want the events raised from my VC++ class, to be handled or received in ManagedC++ layer. The question is it possible to do it. If so any reference article/code with be helpful. Thanks in Advance!

DataGridViewCellStyle style = new DataGridViewCellStyle(); style.BackColor = Color.Blue; this.dataGridView1.RowsDefaultCellStyle = style;

Here’s my problem: • I have an existing exe application that has Doc/View architecture (say A.exe). • This needs to be converted into a DLL while retaining Doc/View architecture (say A.dll). • All the resources and event handlers should reside in the dll. • The second application (say B.exe) which needs to invoke above (A.dll) DLL also has its own Doc/View classes. The basic idea here is that both A and B should share the same data loaded in memory. • User should be able to work independently on both A & B, means they should me modeless dialogs. Thanks,

Hi All, I have a Exe which needs to be converted into Dll... I dont know how to proceed on this..Any help please.. Thanks, Nithya

Hi, In my application i have two views say View1 and View2. When the data in the document changes each view is notified synchronously. But if i hover mouse over the view2 when the the data in document is changing and the notification is not yet sent a event is fired by mouse hover even though i have used CWaitCursor in document. I need to prevent this as its trying to access the old data when new data is loading. Any help please.. Thanks in advance.. Nithya..

I have an dual interface from which i am derving another interface..when i implement both the interface in the same class and when i compile i am getting "error MIDL2020 : error generating type library : AddImplType failed " error message. any help please.. Thanks

Hi i am new to STL .can any one suggest me a good article with which i can start learning STL.

Hi i have added a new interface to an existing component.but when i tried to access the interface in the client program it is saying "access to QueryInterface failed". In this i have two interface both are derived from IDispatch. In COM_INTERFACE_ENTRY i have a ambigiuty error..i solved it with COM_INTERFACE_ENTRY2 macro. Is this have any effect onthe previous error.. Thanks in Advance

How to create multiple toolbars?] Thanks

I have a list view which needs to be sorted based on a click on header.I am using the ListCtrl.SortItems() function. But it is crashing when i clicked on the header.For better understanding i have listed the code. void CDirTreeDemoView::OnColumnClick(NMHDR* pNMHDR, LRESULT* pResult) { NM_LISTVIEW* pNMListView = (NM_LISTVIEW*) pNMHDR; this->GetListCtrl().SortItems (CompareFunc, pNMListView->iSubItem); *pResult = 0; } int CALLBACK CDirTreeDemoView::CompareFunc (LPARAM lParam1, LPARAM lParam2,LPARAM lParamSort) { ITEMINFO* pItem1 = (ITEMINFO*) lParam1; ITEMINFO* pItem2 = (ITEMINFO*) lParam2; int nResult = 0; switch (lParamSort) { case 0: // File name nResult = pItem1->strFileName.CompareNoCase (pItem2->strFileName); break; case 1: // File size nResult = pItem1->nFileSizeLow - pItem2->nFileSizeLow; break; case 2: // Date and time nResult = ::CompareFileTime (&pItem1->ftLastWriteTime, &pItem2->ftLastWriteTime); break; } return nResult; } When i debuged lParam1 and lParam2 are getting value as '0'. Any hekp please Thanks

Use the ON_COMMAND message map to perform the specific operation on the toolbar button.

Thanks for your reply. What exactly my problem is when i clicked the LARGE ICON Button on the applications tool bar or select it from the View menu the Icons are not getting displayed in the List view. I am able to see the icons in other views namely Details,Small Icons ,Lists. There's absolutely no problem with the tree view.

I have created a Explorer type application in which i have problems in viewing the large icons.When i update the List view to display the files and folders in a particular path i am getting only the text display not the image. Any suggestion or article of this kind will be helpful Thanks

i need to update a list view with DateTme..which is in FILETIME struct.How can i convert it to string ? Thanks

i am trying to create a windows explorer type application in vc++.i am able to update the TreeView for the directory list. But i am unable to populate the ListView(right pane).i have listed the code below.. void CDirTreeDemoView::OnInitialUpdate() { CListView::OnInitialUpdate(); GetListCtrl ().InsertColumn (0, _T ("File Name"), LVCFMT_LEFT, 192); GetListCtrl ().InsertColumn (1, _T ("Size"), LVCFMT_RIGHT, 96); GetListCtrl ().InsertColumn (2, _T ("Last Modified"), LVCFMT_CENTER,128); } any help plz thanks

i havent used VB, can u plz give me somelink that will help me.. Thanks

Is there any easy way to create event\message maps in Visual studio 2003.I counld not find the class wizard.Any help plz.

Can anyone help me in retriving the value from a hash table..in c# Thanls Nithya..