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i m building COM components in VC++ using ATL lib.
I want to dyanamically create listboxes on my dialog.
I hav tried using classes in "atlcontrols.h" but dont know which Window handle to pass to get the list box on dialog.
Same with Static text boxex n edit boxes.
Can u plz try n give me some soln .
Gaurav Jain
K.K. Wagh Institue of Engineering Education and Research,
Nashik,
Maharashtra,
India.
gauravjain911@yahoo.com
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how can we retrieve window xp's current user's name in mfc/atl?
because i writing some program which need to read file from internet cache, which is stored under user's folder...
thx in advance...
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Don't go by the user's name for that, since you can move the IE cache directory. The right way to get the dir is SHGetFolderPath() with the CSIDL_INTERNET_CACHE parameter.
--Mike--
LINKS~! Ericahist updated! | 1ClickPicGrabber | CP SearchBar v2.0.2 | C++ Forum FAQ
Strange things are afoot at the U+004B U+20DD
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can u pls gv more details on how to implement this ? from msdn and some sample in codeproject, i found we hv to include either "Shfolder.h" or "ShellFileOp.h", which is not found in my vc include folder? izzit i missed something during the installation?
beside that, i try in manual way to set the path, but i then found one problem, which this folder is protected, and using some different file system than normal file system. e.g. if we browse a file named "index.jpg", same file name is saved under the folder but we cant open the file by path <internet_cache>\index.jpg, instead it is represented by <internet_cache>\Content.IE5\EVIV8DSF\index.jpg, or may be <internet_cache>\index%5B1%5D.jpg....anyone hv any idea/experience in overcome this situation?
sorry for asking so many question...i'm new in c++ programming, and hv to finish this system in short time duration as my final year project...
thx in advance for any help... 
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hi, was trying to add a function [view image in new window], right above the line of save image of IE's right click context menu.
with referencing to msdn article titled "Adding Entries to the Standard Context Menu(Internet Explorer - Browser Extensions )" , i start to edit my windows registry. After adding a key named "view image in new window", and change it's value to the processing page, i later on try to add a binary value under it, with value 0x2 which only display this options when users click on an image only, but when i try to modify this binary value's value, it pop up a windows which show 4 0's as 0000, once i typed 0, it display another 2 0's, anyone hv any ideas on how this can be??
beside that, i also cant find more details on how the processing page will be, which i just like to get the image's path(preferable path which link to the image file in cache) , and display it in a new window....
hope can get some help or recommendation to some useful articles ...
thx in advance
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add-on : link to the article titled "Adding Entries to the Standard Context Menu(Internet Explorer - Browser Extensions )", as mentioned above
http://msdn.microsoft.com/workshop/browser/ext/tutorials/context.asp
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hi!!
im trying to create a Schema rowset as i want to display the tables existing in the database.
but im geting a Windows Error Report as soon as i execute getrowset function. Im building a COM using ATL.
any help is welcome.
STDMETHODIMP Cfuctcont::pop()
{
// TODO: Add your implementation code here
DBPROP InitProperties[5], InitProperty[3];
DBPROPSET rgInitPropSet;
IDataInitialize * pDataInit = NULL;
IDBInitialize * pDataSourceIDBInitialize = NULL;
IDBCreateSession * pSession = NULL;
IDBProperties * pProperties = NULL;
IDBCreateCommand * pCreateCommand = NULL;
ICommand * pCommand = NULL;
ICommandProperties * pCommandProperties = NULL;
ICommandText * pCommandText = NULL;
IOpenRowset * pOpenRowset = NULL;
IRowset * pRowset = NULL;
IRowsetChange * pRowsetChange = NULL;
IDBSchemaRowset * pSchemaRowset =NULL;
WCHAR wszProvider[] = L"MSDASQL"; // The Provider string
CLSID clsid;
HRESULT hr= S_OK;
// Init OLE and set up the data
CoInitialize(NULL);
// Setting up all the properties
// a) Setting up the Intitialization properties
for(long i=0;i<5; i++)
{
InitProperties[i].dwOptions = DBPROPOPTIONS_REQUIRED;
InitProperties[i].colid = DB_NULLID;
InitProperties[i].dwStatus = DBPROPSTATUS_OK;
}
// Data source string.
InitProperties[1].dwPropertyID = DBPROP_INIT_DATASOURCE;
InitProperties[1].colid = DB_NULLID;
InitProperties[1].vValue.vt = VT_BSTR;
InitProperties[1].vValue.bstrVal = SysAllocString(L"user");
InitProperties[4].dwPropertyID = DBPROP_INIT_OLEDBSERVICES;
InitProperties[4].vValue.vt = VT_I4;
InitProperties[4].vValue.lVal = DBPROPVAL_OS_ENABLEALL;
rgInitPropSet.guidPropertySet = DBPROPSET_DBINIT; // the property set
rgInitPropSet.cProperties = 5; // # of properties being set
rgInitPropSet.rgProperties = InitProperties; // array of DBPROP structures
// b) The Rowset properties
InitProperty[0].dwPropertyID = DBPROP_CANFETCHBACKWARDS;
InitProperty[1].dwPropertyID = DBPROP_IRowsetLocate;
for(i=0;i<2; i++)
{
InitProperty[i].dwOptions = DBPROPOPTIONS_REQUIRED;
InitProperty[i].colid = DB_NULLID;
InitProperty[i].dwStatus = DBPROPSTATUS_OK;
}
// 1. Data Source Initialization
hr = CoCreateInstance(CLSID_MSDAINITIALIZE, NULL, CLSCTX_INPROC_SERVER, IID_IDataInitialize, (void**)&pDataInit);
// Creating the IDBInitialize
hr = CLSIDFromProgID(wszProvider, &clsid);
hr = pDataInit->CreateDBInstance(clsid, NULL, CLSCTX_INPROC_SERVER, NULL, IID_IDBInitialize, (IUnknown**) &pDataSourceIDBInitialize);
// Setting the Initialization properties
hr = pDataSourceIDBInitialize->QueryInterface(IID_IDBProperties, (void**)&pProperties);
hr = pProperties->SetProperties(1,&rgInitPropSet);
hr = pDataSourceIDBInitialize->Initialize( );
hr = pDataInit->Release();
hr = pProperties->Release();
//session creation
hr = pDataSourceIDBInitialize->QueryInterface(IID_IDBCreateSession, (void**)&pSession);
hr = pDataSourceIDBInitialize->Release();
IUnknown *pUnkSession =NULL;
hr = pSession->CreateSession(NULL, IID_IOpenRowset, &pUnkSession);
IDBSchemaRowset * pIDBSchemaRowset = NULL;
// pUnkSession->QueryInterface(IID_IDBSchemaRowset, (void**)&pIDBSchemaRowset);
pSession->Release();
IUnknown * pUnkCommand = NULL;
IOpenRowset * pIOpenRowset = NULL;
WCHAR wszTableName[11] = {0};
DBID TableID;
IUnknown *ppUnkRowset;
IUnknown *ppRowset;
VARIANT rest[]={VT_EMPTY,VT_EMPTY,VT_EMPTY,VT_EMPTY};
::MessageBox(NULL,"Helooo",NULL,MB_OK);
const ULONG cProperties = 2;
DBPROP rgProperties[cProperties];
DBPROPSET rgPropSets[1];
// rgPropSets, cProperties, rgProperties);
//DBPROPSET* pPropSet, ULONG cProperties, DBPROP* rgProperties)
rgPropSets->rgProperties = rgProperties;
rgPropSets->cProperties = cProperties;
rgPropSets->guidPropertySet = DBPROPSET_ROWSET;
rgProperties[0].dwPropertyID = DBPROP_CANFETCHBACKWARDS;
rgProperties[1].dwPropertyID = DBPROP_IRowsetLocate;
for(i=0;i<2; i++)
{
rgProperties[i].dwOptions = DBPROPOPTIONS_REQUIRED;
rgProperties[i].colid = DB_NULLID;
rgProperties[i].dwStatus = DBPROPSTATUS_OK;
}
hr = pSchemaRowset->GetRowset (
NULL,
DBSCHEMA_TABLES,
0,
NULL,
IID_IRowset,
1,
rgPropSets,
&ppRowset);
if(hr==S_OK)
::MessageBox(NULL,"ok",NULL,MB_OK);
if(hr==DB_S_ERRORSOCCURRED )
::MessageBox(NULL,"HI",NULL,MB_OK);
if(hr==DB_S_ASYNCHRONOUS)
::MessageBox(NULL,"HI1",NULL,MB_OK);
//if(hr==DB_S_NOTSINGLETON )
//::MessageBox(NULL,"HI2",NULL,MB_OK);
if(hr==E_FAIL )
::MessageBox(NULL,"HI3",NULL,MB_OK);
if(hr==E_INVALIDARG )
::MessageBox(NULL,"HI4",NULL,MB_OK);
if(hr==E_NOINTERFACE )
::MessageBox(NULL,"HI5",NULL,MB_OK);
if(hr==DB_E_ABORTLIMITREACHED)
::MessageBox(NULL,"HI6",NULL,MB_OK);
if(hr==DB_E_ERRORSOCCURRED)
::MessageBox(NULL,"HI7",NULL,MB_OK);
if(hr==DB_E_NOAGGREGATION)
::MessageBox(NULL,"HI8",NULL,MB_OK);
if(hr==DB_E_NOTFOUND )
::MessageBox(NULL,"HI9",NULL,MB_OK);
if(hr==DB_E_NOTSUPPORTED)
::MessageBox(NULL,"HI10",NULL,MB_OK);
if(hr==DB_SEC_E_PERMISSIONDENIED)
::MessageBox(NULL,"HI11",NULL,MB_OK);
if(hr==DB_E_OBJECTOPEN )
::MessageBox(NULL,"HI12",NULL,MB_OK);
if(hr==E_OUTOFMEMORY )
::MessageBox(NULL,"HI13",NULL,MB_OK);
::MessageBox(NULL,"HIsfsf",NULL,MB_OK);
return S_OK;
}
thanking you.
Gaurav Jain
K.K. Wagh Institue of Engineering Education and Research,
Nashik,
Maharashtra,
India.
gauravjain911@yahoo.com
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I used win32 application and wrote one WTL application file it shows error "WTL requires IE version 3.0 or higher" at compile time.
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You need to set the macro '_WIN32_IE' to match the minimum version of Internet Explorer you're willing to support (this is basically for Common Controls support).
So, for IE3, put
#define _WIN32_IE 0x0300
in your stdafx.h, or for IE6, put
#define _WIN32_IE 0x0600
Note that there are also macros to set the OS level - see this page[^] for more details.
Stuart Dootson
'Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p'
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I inserted #define _WIN32_IE 0x0600 after compiling i got 6 error messages
First message "missing ';' before identifier 'lpnm'"
what i should do
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I think you'll have to define WINVER and _WIN32_WINNT as well.
Stuart Dootson
'Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p'
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thank you for your reply
I used two header file and one cpp file. The files are following
// stdafx.h
#define STRICT
#define WIN32_LEAN_AND_MEAN
#define _WTL_USE_CSTRING
#define _WIN32_IE 0x0600
#include <atlbase.h> // base ATL classes
#include <atlapp.h> // base WTL classes
extern CAppModule _Module; // WTL version of CComModule
#include <atlwin.h> // ATL GUI classes
#include <atlframe.h> // WTL frame window classes
#include <atlmisc.h> // WTL utility classes like CString
#include <atlcrack.h> // WTL en
// MyWindow.h
class CMyWindow : public CFrameWindowImpl<cmywindow>
{
public:
DECLARE_FRAME_WND_CLASS(_T("First WTL window"), IDR_MAINFRAME);
BEGIN_MSG_MAP(CMyWindow)
CHAIN_MSG_MAP(CFrameWindowImpl<cmywindow>)
END_MSG_MAP()
};
// main.cpp:
#include "stdafx.h"
#include "MyWindow.h"
CAppModule _Module;
int APIENTRY WinMain ( HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow )
{
_Module.Init ( NULL, hInstance );
CMyWindow wndMain;
MSG msg;
// Create the main window
if ( NULL == wndMain.CreateEx() )
return 1; // Window creation failed
// Show the window
wndMain.ShowWindow ( nCmdShow );
wndMain.UpdateWindow();
// Standard Win32 message loop
while ( GetMessage ( &msg, NULL, 0, 0 ) > 0 )
{
TranslateMessage ( &msg );
DispatchMessage ( &msg );
}
_Module.Term();
return msg.wParam;
}
the above program only i got 6 errros
First error:
error C2146: syntax error : missing ';' before identifier 'lpnm'
d:\program files\microsoft visual studio\vc98\include\atlframe.h(1176) : see reference to class template instantiation 'WTL::CFrameWindowImplBase<tbase,twintraits>' being compiled
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Hi,
I want to share a CAtlFileMapping object between all simple ATL objects (between all instance of my COM Automation objects).
Basically, I want to load up a file control access to it so that multiple threads will not corrupt it trying to simulaneously write. The file should be accessible to all COM instances so that clients can invoke methods that modify this same file.
Pls advice me as to how I should go about doing this. I've programmed a lot in C++. But I'm completely new to ATL and COM.
Thanks in advace.
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If you are using the single thread model, then COM will serialize all calls to the CAtlFileMapping object on a single thread, so that your object will only get called on one thread. Unless there's something different about the CAtlFileMapping object. It depends on how you CoCreate the CAtlFileMapping. Of course, if the CAtlFileMapping object is registered as "Both", and you are free threaded, you won't get that.
In that case, I would recommend you create a singleton object that all your COM Automation objects call into, and it uses critical sections to protect against calling into the CAtlFileMapping object.
Another solution might be for a custom class factory object. Have the CAtlFileMapping object as part of the class factory. Use CoGetClassObject to get the class factory, QI for your interface. You still need a critical section though, in the class factory to protect multiple access to the CAtlFileMapping.
Once you get past some of the COM/ATL'isms, its very similar to Win32/C++, just use a critical section to be on the safe side.
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Hi everybody,
Does anybody know how to catch Microsoft word application events in a non MFC application (specifically WTL application) ?
thanks in advance,
Roozbeh
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There's too much to specify in detail, but here goes...
Word events are specified as an interface that you (the client that wants to receive the events) have to implement. You tell Word about the interface implementation using Word's implementation of IConnectionPointContainer and IConnectionPoint, which is made simpler if using ATL through the function AtlAdvise.
These two links may help:
COM Events
Event Handling with ATL
Stuart Dootson
'Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p'
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Thank you very much for your help.
Regards,
Roozbeh
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Hi,
I would like to create a effective antivirus program for microsoft windows OS. It must be a light weight component and doesn't take much of time to load.
can i used WTL for this purpose or otherwise i used to SDK. MFC it take two dlls
extra compare than SDK. can WTL support memory concept like process, Threads, etc..
 Write Your suggestion .........
Regards,
G. Inbkumar.
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well WTL is not matured enough , although you can use that.
What is the need of using MFC use Win32 - PSDK.
Also why not try .NET - any language.
but that is only about front end.
What about drivers ?
are you planning to write driver in WTL ?
Regards
Tarundeep Singh Kalra
************************
www.tarunsadhana.com
************************
All men die. Not all men really live”. - “Braveheart”, 1995
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Hi,
I'm not sure about where to start doing this so, here is an example of what i want to do.
Place control1 and control2 on a dialog, control2 will now about control1 and be able to list a properties for example.
maybe i have several control1 on a dialog, control2 will list all control1's in a property.
thanks
Gary Rusher
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hi, i created a dll using ATL COM AppWizard, and also with MFC support in order to create certain GUI...
in effort trying to display a dialog from the dll, i create a simple dialog wif just ok and cancel button, and then run ClassWizard and use Cdialog as it's base class..
in implementation, i try to display the dialog as a modal window using DoModal() function, as coding shown below :
Cdialog1 adialog;
adialog.DoModal();
no error or warning display when i compile, but the problem occur when i run the system, where error code i get was :
Debug Assertion Failed!!
was go thru several books and tutorials from internet, and i think there's nothing wrong wif the coding (just 2 lines coding isnt it =.=")
anyone hv idea about wad's going on??
thx in advance...
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No u must derive ur Class from CAxDialogImpl and not from
CDialog.For this use Insert Menu of VC++ IDE.
Insert->New ATL Object->Miscallenous->Dialog
Give a short name ie. dialog1 ,in ur case
Now call
Cdialog1 adialog;
adialog.DoModal();
also try not to use Class Wizard in ATL COM
Hope this solves ur problem
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thx you so much, the problem solved....
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