As I recall you won't be able to do as you want, either the ATL Event Wizard generated code sees the internal NULL and loses the rest (even with the BSTR length set) or VB will see a a NULL terminated string. I'm pretty sure You'll have do do more one way or the other. Maybe pass an array of characters?
The NULL character is your problem. Try replacing it with some other unique Unicode character which both parts of your application can recognise. Alternatively put the box character in your source string in the first place.
I am using namespace MSXML in my application to traverse and read XML file.But I have some confusion regarding MSXML is that this one is related to c++ DOM APIs na? And what its relation with COM?
And these both COM AND DOM are provoding different APIs?and then what is DCOM?
did you introduce new controls such as button to outlook UI for this purpose? or did you subscribed for Send/Receive event via connectionPoint? Explaining the procedure you have followed may help to get quick solutions..
I have introduced new toolbar using ATL.On selecting some mails and clicking on the button, mail details will be sent to a web service.The part of retrieving the mail details is working fine.On doing the export a few times, and then clicking on Send/Receive button, a message box "Could not complete the operation" appears.
As the message box does not appear on a single Export action, i could not find the scenario.
problem seems strange, but after googling the error msg, it is found that this error msg comes in several other scenarios like repeatedly creating New Appointment, New Tasks etc also. So can we conclude that repeatedly retrieving mail items conflicts with send/receive action.?
thanks for your time..
yes.. the error msg comes in several case in outlook.i am trying to find what causes the Send/Receive action to show the error msg.
what object of outlook gets changed, so the error occurs on the Send/Receive action??
I need to use FFDShow interfaces in my VC++ project. how can i proceed. I got ffdshow.ax file from the FFDShow instalation directory. But there is no tlb file to import. Can i use this .ax file for getting the interfaces...? Or any other methods there to proceed...
I have the following method to capture image from a window it works ok but today it save the same image to disk every times called. Please help me! I cannot understand what is the problem.
public void GetWindowPicture(IntPtr hWnd)
IntPtr hdcDest = default(IntPtr);
IntPtr hdcSrc = default(IntPtr);
RECT r = new RECT();
int w = 0;
int h = 0;
GetWindowRect(hWnd, ref r);
w = r.Right - r.Left;
h = r.Bottom - r.Top;
Bitmap bm = new Bitmap(w, h);
Graphics g = Graphics.FromImage(bm);
This doesn't really look like a COM problem,...but, copying the same image every time is probably because the HWND is the same every time.
Give us some context as to where in an application this code is being executed.
I tried to register simpleui5.ocx control in system32 from command prompt but not able to and i came across with the error LoadLibrary("c:\windows\system32\simpleui5.ocx") failed - invalid access memory location.
Can any buddy tell me how do i successfully register this active x control?
I am an intermediate in this fantastic filed of science. I want to gain knowledge from profesionals of high caliber & Offcourse I want to share with other.
I would like to filter the URL address by sink the IWebBrowser interface of current IE. first I get the current IE's IWebBrowser Interface, And the IConnectionPoint interface. but There is error when I connect with function "Advise".
this is my code:
// Get IE
BOOL EnumIE(HWND hWnd)
long nCount = spShWinds->GetCount();
for (int n = 0; n < nCount; n++)
_variant_t var = (long)n;
spDisp = spShWinds->Item(var);
if (spBrowser != NULL)
HWND hProcHwnd = NULL;
if (hProcHwnd == hWnd)
ConnectIE(spBrowser); // connect the IE
// connect current IE
void ConnectIE(IUnknown *pUnkSite) // 连接IE接口
IWebBrowser2 *pSite; // the currently set site
I have 32-bit ocx which i am trying to register using regsvr32 command on 64-bit vista operating system. I am getting the message that registration is successful but later when i am launching my application , exe fails to load the OCX.
Firstly note that there are multiple success and failure code. If you're only interested in failure or success (and not the type of failure or success) then you can use the FAILED and SUCCEEDED macros:
HRESULT hr = pObj->SomeMethod();
A HRESULT is made from a number of components. The easiest way to create one from its component parts is with the MAKE_HRESULT[^] macro.
To make a user defined error code to be returned from a COM interface you'd do something like this (MS recommends error values in the range 0x0200 to 0xffff):