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Hi
Thanks for the reply. The pixel data are allocated by class A with the new[] operator upon A's instantiation, and deallocated (using delete[]) in A's destructor. In this case, I think pTmp's destruction will invalidate A's pixel data, won't it? And will converting the pixel data to 2d vector get rid of this problem?
Thanks!
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We can Enable/Disable the hibernation support by follow procedure :
1. Open Control Panel.
2. Select Power Options.
3. Click Hibernation.
4. Check/Uncheck Enable Hibernation.
How to implement this function in VC++ ?
Jesa
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Hi guys
How can I change my cursor whem I'm over a precise region of a CStatic control?
I've tried Setcursor(...) inside OnMouseMove but without succes (debugging the code enters but the cursor doesn't change).
What exactly I have to use? (any example?)
Best Regards
Doc
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You'll want to do it in OnMouseMove with SetCursor , as you have already tested, but you'll also have to do a SetCursor in OnSetCursor (a handler for the WM_SETCURSOR -message).
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- hi all, I want to find all folders which are shared fully in my drive and list them on. But i don't know how.
hope you help me
thanks
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I also want to know this.
I want to find all the shared folders on the computer in same LAN.
Please help me regarding this.
Thanks and Regards,
Shri
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Hello !
I have a dll that is written in C++ and is called in VB. In one function I need to send a structure containing strings !! But how can I do this, this is really hell to understand how VB handles the strings ! I tried with the BSTR type but this doesn't work
Example:
struct VBSTRUCT<br />
{<br />
BSTR String1;<br />
BSTR String2;<br />
}<br />
<br />
<br />
int __stdcall TestFunc(VBSTRUCT* VbStruct)<br />
{<br />
}<br />
<br />
The structure is declared in VB also !
The thing I don't understand is that it's working the other way: when the function is called and when I fill the structure within my Dll (using SysAllocStringByteLen function to allocate the string). And also, when I check in memory the strings that are allocated, the characters are on ONE byte and VB still understand it .
I tried a lot of things but nothing works. If someone has an idea how to do this, this would be great .
Thanks
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If you change the type to a VARIANT and do the following you should be able to pass a collection of strings through to it. I have not tried this with VB but it ought to work.
int __stdcall TestFunc(VARIANT var)
{
if ((var.vt & VT_ARRAY) == 0)
return E_INVALIDARG;
<br>
if ((var.vt & VT_BSTR) == 0)
return E_INVALIDARG;
<br>
SAFEARRAY* pSA = var.parray;
BSTR* bstrArray;
<br>
SafeArrayAccessData(pSA, reinterpret_cast<void**>(&bstrArray));
<br>
for (unsigned i = 0; i < pSA->rgsabound->cElements; i++)
{
}
<br>
SafeArrayUnaccessData(pSA);
}
Some C++ test code
VARIANT var;
int nSize = <size of array>;
<br>
VariantInit(&var);
<br>
var.vt = VT_ARRAY | VT_BSTR;
<br>
SAFEARRAY* pSA;
SAFEARRAYBOUND bounds = {nSize, 0};
<br>
pSA = SafeArrayCreate(VT_BSTR, 1, &bounds);
<br>
BSTR* bstrArray;
<br>
SafeArrayAccessData(pSA, reinterpret_cast<void**>(&bstrArray));
<br>
for (int i = 0; i < nSize; i++)
{
}
<br>
SafeArrayUnaccessData(pSA);
<br>
var.parray = pSA;
<br>
Hope that helps
Ant.
I'm hard, yet soft. I'm coloured, yet clear. I'm fuity and sweet. I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)
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Hello,
I'd like to know how I'd go about putting a file select control into a dialog using VC++ 6.0.
I've tried adding a registered activex control -> SelectFile to my project but when I drag and drop the control onto my dialog, I get errors saying that the control is missing an interface.
Regards.
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Do you mean CFileDialog?
(opening, saving files?)
"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix
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No, not after the CFileDialog, to be more clear I'm developing a dialog that enables the user to find images based on keywords that the user enters into the dialog.
So what I needed was a combo box or a tree control that would let the user pick the directory on which they want to browse.
Regards.
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Hello!
I have a question about RegQueryValueEx API, after the second execution of this API, it does not return an ERROR_SUCCESS value provided there is a correct registry entry and path. Why is this?
Ex:
if( ERROR_SUCCESS == ::RegOpenKeyEx(HKEY hKey, LPCTSTR lpSubKey, DWORD ulOptions, REGSAM samDesired, PHKEY phkResult))
{
if (ERROR_SUCCESS == ::RegQueryValueEx(HKEY hKey,LPCTSTR lpValueName, LPDWORD lpReserved, LPDWORD lpType, LPBYTE lpData, LPDWORD lpcbData))
{
if lpData.Find("Sample"); //lpData as _TCHAR, Sample = Data from registry
{
if( ERROR_SUCCESS == ::RegOpenKeyEx(HKEY hKey2, LPCTSTR lpSubKey,DWORD ulOptions, REGSAM samDesired, PHKEY phkResult)) // another path is opened
{
If (ERROR_SUCCESS == ::RegQueryValueEx(HKEY hKey2,LPCTSTR lpValueName, LPDWORD lpReserved, LPDWORD lpType, LPBYTE lpData, LPDWORD lpcbData)) //this condition failed to return an ERROR_SUCCESS provided there is a correct path from the registry.
{
...
}
}
}
}
}
"smile donkey, smile!"
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if lpData.Find("Sample"); should be if (lpData.Find("Sample") != -1)
sorry...
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Hi all,
I am very keen to change the caption of a button (Ok,Cancel,Apply and Help)on a property page and also change the caption of Title bar on a Properysheet.How can I know the ID of buttons on a property page.
Please help me.
rajesh
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OK is IDOK
Cancel is IDCANCEL
Apply is ID_APPLY_NOW
Help is IDHELP
Use GetDlgItem() to get the window (CWnd) associated with the control then use SetWindowText() to set the control text. The title of the property sheet is set when you create the property sheet. Or using SetWindowText() within the property sheet class.
Ant.
I'm hard, yet soft. I'm coloured, yet clear. I'm fuity and sweet. I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)
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In the appication that i m developing,i wish to create an alert messages whenever certain condition is met. i have already created such an alert message using MessageBox but instead of that i know wish to show that alert as a popup from the tray which stays for few seconds and disappers atomatically. need suggestions on how to do....
ask_you
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the article seems quite useful...
thanx a lot....
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Glad to help!
Happy Programming and God Bless!
Internet::WWW::CodeProject::bneacetp
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i tried the the link that u had sent...
i.e. http://www.codeproject.com/dialog/statusbarmsgwnd.asp
well, i went through the code and tried to include it in my application. first i just included the stuff in the initdialog function to check whether it works.. well,to my pleasure, it worked. but then when i tried porting it to the actual location, it failed. i have created a thread in the application and want to call the code within the application. but when i do so, the application fails...it exits forcibly...
a portion of the code is shown below:
DWORD WINAPI CDlg::TestThread1(LPVOID lpParam)
{
CDlg* pThis = (CDlg*)lpParam;
while(1)
{
if(pThis->m_hCommEvent1)
{
WaitForSingleObject(pThis->m_hCommEvent1, INFINITE);
CStatusBarMsgWnd* t_MsgWnd =
StatusBarMsgWnd::CreateObject(
_T("Some idiot has signed in !!"),180, 150, 4000,10,CRect(30, 30, 130, 110),pThis);
t_MsgWnd->PopMsg();
}
}
}
Can u suggest wat modifications should i do...
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I would suggest to post (or send) a message back to the application from the thread, and to handle that message there doing the work
Papa
while (TRUE)
Papa.WillLove ( Bebe ) ;
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How do i send the message back from the thread..
there are 4 threads. in each thread on some event, a menu has to pop up from the tray icon... please explain how to pass message back from the thread....
ask_you
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Hi every one, i ve got a problem :
after built an simple MFC App , i copy the exe file to other computer (in which Visual C++ is not installed) and try to run it, but some error occured, it's not run, How do i ????? help me please?
thanks
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Does it bring up a message about a MFC__.DLL file? If so, try copying them from your development computer to the destination computers (in the same location that you found them in the development computer). Use the Windows search feature to find the files on your development computer.
Happy Programming and God Bless!
Internet::WWW::CodeProject::bneacetp
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Try to use MS VS tools - Depends to check you application dependancies.
Sonork 100.41263:Anthony_Yio
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