Re: Edit Box Character Test (Input Filter) - C / C++ / MFC Discussion Boards

Re: Identify shutdwon and restart in WM_QUERYENDSESSION

daydremer11-Mar-04 0:55

11-Mar-04 0:55

well i have this program that remains hidden and be shown when shutdown is detected. my problem is that it should not appear when the system restarts or logs off.
well logoff and shutdown can be detected on WM_QUERYENDSESSION and WM_ENDSESSION.
in what way or how does windows commands the system to power up again after shutting down ( restart ).

do you have any idea on how to accomplish it? Confused | :confused:

Accessing Objects in Mainframe

johnsb27-Mar-04 3:48

johnsb2

7-Mar-04 3:48

I have a program where I create various objects in mainframe. The objects are data members of class mainframe. I need to access these objects using member functions in dialog and view.cpp. How can I access objects in mainframe from dialog and view? Right now I am using a Extern to do it, but I dont like doing it that way.

Can someone give me a few ideas?

Thanks.
Jerry

Re: Accessing Objects in Mainframe

Prakash Nadar7-Mar-04 3:58

Prakash Nadar

7-Mar-04 3:58

use

CMyMainFrm *pFrm;
pFrm = (CMyMainFrm*)AfxGetMainWnd();
pFrm->{access the member functions or variables}

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Re: Accessing Objects in Mainframe

johnsb27-Mar-04 4:32

johnsb2

7-Mar-04 4:32

I have a cmainframe in my project, but when I do the following:
(cmainframe is derived from cmdiframewnd)

cmainframe *pframe = (cmainframe*)afxgetmainwnd();
in a function that is part of my view.cpp file...

it doesnt recognize cmainframe

Re: Accessing Objects in Mainframe

Prakash Nadar7-Mar-04 4:47

Prakash Nadar

7-Mar-04 4:47

What error do you get, if you are getting any?
The Logic should work without any probs.

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Re: Accessing Objects in Mainframe

johnsb27-Mar-04 5:25

johnsb2

7-Mar-04 5:25

I think I know what I did wrong, thanks. The compiler did not recognize the cmainframe object. I needed an include statement.

Thank you very much.
Jerry

Edit Box Character Test (Input Filter)

Freddie Code7-Mar-04 3:31

Freddie Code

7-Mar-04 3:31

I'm trying to filter the characters that are typed into an edit box. For example, I only want the characters A,B,C,D,E,F to be allowed to be typed into the box. Any other characters typed will not be displayed in the box.

Does anyone know how to do this?

Thanks,
Freddie

Re: Edit Box Character Test (Input Filter)

Prakash Nadar7-Mar-04 3:55

Prakash Nadar

7-Mar-04 3:55

Basically you customise the edit control.
Derive a class from the CEdit and listen to the keyboard inputs if they are not amoung the charecters that you want then ignore them.
There are lot of these types of controls here in the codeproject. You can follow the link for CEdit on the leftside at www.codeproject.com

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Re: Edit Box Character Test (Input Filter)

monrobot137-Mar-04 5:37

monrobot13

7-Mar-04 5:37

Here's a quick and dirty implementation:

// in CMyEdit.h
afx_msg void OnChar (UINT nChar, UINT nRepCnt, UINT nFlags);
DECLAR_MESSAGE_MAP()

// in CMyEdit.cpp

BEGIN_MESSAGE_MAP(CMyEdit, CEdit)
    ON_WM_CHAR ()
END_MESSAGE_MAP()
<p></p>
void CMyEdit::OnChar (UINT nChar, UINT nRepCnt, UINT nFlags)
{
    int lwr = tolower (nChar);

    if (lwr >= 'a' && lwr <= 'f' && lwr != '.' ||
        lwr == VK_BACK || lwr == VK_DELETE
       )
        CEdit::OnChar (nChar, nRepCnt, nFlags)
}

Then add a control variable for the editbox and in your .h file change it's type to CMyEdit instead of CEdit. Not the best way to do it, but you could get by with it.

- Aaron

Cut, copy and paste options...

Neha6-Mar-04 22:06

Neha

6-Mar-04 22:06

Hi
I want to implement Cut,copy,paste for explorer items.
I tried with SHFileOperation() But I didn't find a proper way for Cut and Paste. One more this how can I create a new folder?

Could anyone please help me to solve this?

Regards
Neha

Re: Cut, copy and paste options...

Prakash Nadar6-Mar-04 22:48

Prakash Nadar

6-Mar-04 22:48

did you consider MoveFile(...) for cut n paste operation?

Neha wrote:
One more this how can I create a new folder?

CreateDirectory(...)

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Re: Cut, copy and paste options...

Neha7-Mar-04 18:45

Neha

7-Mar-04 18:45

Thanks for the reply..

But I want to implement it in the same way as the explorer does.
That is if I say select any file and say copy it should copy the file to clipbord and I should be able to paste it anywhere.

About GetClipboardSequenceNumber

Filomela6-Mar-04 21:24

Filomela

6-Mar-04 21:24

I have a rtf editor based on dialog box in Visual C++.I have to use this function in my app.When i complile my app, it says undeclared identifier.In documentation says that this fct requires Windows 98.I have this operating system.Then why i get this message?
If this function works it saves my work.

Thanks a lot.

Adriana

Re: About GetClipboardSequenceNumber

Michael Dunn7-Mar-04 6:26

Michael Dunn

7-Mar-04 6:26

See the FAQ
2.2 I'm trying to call a Windows API, but the compiler gives an undeclared identifier error (C2065). Why?[^]

--Mike--
Personal stuff:: Ericahist | Homepage
Shareware stuff:: 1ClickPicGrabber | RightClick-Encrypt
CP stuff:: CP SearchBar v2.0.2 | C++ Forum FAQ
----
Laugh it up, fuzzball.

Ladder Logic editor (PLC) in C++

schoni6-Mar-04 21:23

schoni

6-Mar-04 21:23

Hello !!

I need the source code in C++ for a
Ladder Logic Editor for PLC Programming.

It can be similar editor as digital-editor or something

Thanx

cu

schonu OMG | :OMG:

ShellExecute and File Properties

User 127826-Mar-04 21:08

User 12782

6-Mar-04 21:08

I'm trying to use ShellExecute to display the properties of file, like in explorer. I'm using something like this,

ShellExecute(NULL,"PROPERTIES","c:\\winnt\\notepad.exe",NULL,NULL,SW_NORMAL);

but it always returns code 31, which is invalid verb ("PROPERTIES"). I checked on MSDN, and the verb is correct, and it doesn't seem to be obsolete (I'm testing on a 2000 machine).

Any suggestions on what I'm doing wrong?

Thanks,
Aaron Stubbendieck

modified 12-Jul-20 21:01pm.

Re: ShellExecute and File Properties

Prakash Nadar6-Mar-04 21:40

Prakash Nadar

6-Mar-04 21:40

try "properties" in lower case and also try using ShellExecuteEx if possiable.

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Re: ShellExecute and File Properties

User 127827-Mar-04 4:10

User 12782

7-Mar-04 4:10

That doesn't appear to make a difference for any of the verbs.

Aaron Stubbendieck

modified 12-Jul-20 21:01pm.

Re: ShellExecute and File Properties

Neha6-Mar-04 22:01

Neha

6-Mar-04 22:01

Even I have the same problem.
I am getting the error as ERROR_NO_ASSOCIATION.

Re: ShellExecute and File Properties

Prakash Nadar6-Mar-04 23:31

Prakash Nadar

6-Mar-04 23:31

From your reply i did some R&D on this, for some reason
"properties" verb does not work with ShellExecute(...) but works with ShellExecuteEx(...)

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Re: ShellExecute and File Properties

Neha7-Mar-04 16:53

Neha

7-Mar-04 16:53

Thanks for the info...

Re: ShellExecute and File Properties

BaldwinMartin6-Mar-04 23:56

BaldwinMartin

6-Mar-04 23:56

Try this

SHELLEXECUTEINFO sei;
ZeroMemory(&sei, sizeof(SHELLEXECUTEINFO));
sei.cbSize = sizeof (SHELLEXECUTEINFO);
sei.lpVerb = NULL;
sei.lpFile = m_strexefilename;
sei.nShow = SW_SHOW;
sei.hInstApp = NULL;
sei.lpDirectory = NULL;
sei.fMask = SEE_MASK_DOENVSUBST|SEE_MASK_NOCLOSEPROCESS;
sei.lpParameters = NULL;
if (ShellExecuteEx (&sei) )
return TRUE;
else
return FALSE;

Now start a thread and monitor it, monitor sei

Best Wishes,
ez_way

Re: ShellExecute and File Properties

User 127827-Mar-04 4:09

User 12782

7-Mar-04 4:09

I tried your code with the only change being changing m_strexefilename to a static path for a file. That will open the file just fine, as will setting the verb to "OPEN" or "open". However, if I try setting it to "properties" a message box appears that says:

"This file does not have a program associated with it for performing this action. Create an association in the Folder Options control panel."

Any idea what I could be doing wrong?

Thanks,
Aaron Stubbendieck

modified 12-Jul-20 21:01pm.

Re: ShellExecute and File Properties

User 127827-Mar-04 4:12

User 12782

7-Mar-04 4:12

Also, for any verb, explore, find, etc also give the same visual error.

modified 12-Jul-20 21:01pm.

Re: ShellExecute and File Properties

Anonymous7-Mar-04 5:18

Anonymous

7-Mar-04 5:18

SHELLEXECUTEINFO

typedef struct _SHELLEXECUTEINFO{
DWORD cbSize;
ULONG fMask;
HWND hwnd;
LPCTSTR lpVerb;
LPCTSTR lpFile;
LPCTSTR lpParameters;
LPCTSTR lpDirectory;
int nShow;
HINSTANCE hInstApp;

// Optional members
LPVOID lpIDList;
LPCSTR lpClass;
HKEY hkeyClass;
DWORD dwHotKey;
HANDLE hIcon;
HANDLE hProcess;
} SHELLEXECUTEINFO, FAR *LPSHELLEXECUTEINFO;

Contains information used by the ShellExecuteEx function.

cbSize
Size of the structure, in bytes.
fMask
Array of flags that indicate the content and validity of the other structure members. This can be a combination of the following values: SEE_MASK_CLASSKEY Use the class key given by the hkeyClass member.
SEE_MASK_CLASSNAME Use the class name given by the lpClass member.
SEE_MASK_CONNECTNETDRV Validate the share and connect to a drive letter. The lpFile member is a Universal Naming Convention (UNC) path of a file on a network.
SEE_MASK_DOENVSUBST Expand any environment variables specified in the string given by the lpDirectory or lpFile member.
SEE_MASK_FLAG_DDEWAIT Wait for the DDE conversation to terminate before returning (if the ShellExecuteEx function causes a DDE conversation to start).
SEE_MASK_FLAG_NO_UI Do not display an error message box if an error occurs.
SEE_MASK_HOTKEY Use the hot key given by the dwHotKey member.
SEE_MASK_ICON Use the icon given by the hIcon member.
SEE_MASK_IDLIST Use the item identifier list given by the lpIDList member.
SEE_MASK_INVOKEIDLIST Use the item identifier list given by the lpIDList member to invoke an application. If this member is NULL, the function creates an item identifier list and invokes the application. This flag overrides the SEE_MASK_IDLIST flag.
SEE_MASK_NOCLOSEPROCESS Leave the process running after the ShellExecuteEx function exits. The hProcess member receives the handle to the process.

hwnd
Window handle to any message boxes that the system may produce while executing this function.
lpVerb
Address of a string specifying the name of a verb. The verb specifies an action for the application to perform. This member defaults to Open if no verb is specified.
lpFile
Address of a null-terminated string that specifies the name of the file to open or print. The function can open an executable file or a document file, but it can only print a document file. If the path is not included with the name, the current directory is assumed.
lpParameters
Address of a null-terminated string containing the application parameters. The parameters must be separated by spaces. To include double quotation marks, you must enclose the marks in double quotation marks, as in the following example:
sei.lpParameters = "An example: \"\"\"quoted text\"\"\"";

In this case, the application receives three parameters: An, example:, and "quoted text".

If the lpFile member specifies a document file, this member should be NULL.

lpDirectory
Address of a null-terminated string that specifies the name of the working directory. If this member is not specified, the current directory is used as the working directory.
nShow
Show flags. Can be one of the SW_ values described for theShowWindow function. If the lpFile specifies an executable file, this member specifies how the application is to be shown when it is opened.
hInstApp
Receives a value greater than 32 if successful, or an error value that is less than or equal to 32 otherwise. Error values can be one of the following: SE_ERR_FNF File not found.
SE_ERR_PNF Path not found.
SE_ERR_ACCESSDENIED Access denied.
SE_ERR_OOM Out of memory.
SE_ERR_DLLNOTFOUND Dynamic-link library not found.
SE_ERR_SHARE Cannot share an open file.
SE_ERR_ASSOCINCOMPLETE File association information not complete.
SE_ERR_DDETIMEOUT DDE operation timed out.
SE_ERR_DDEFAIL DDE operation failed.
SE_ERR_DDEBUSY DDE operation is busy.
SE_ERR_NOASSOC File association not available.

lpIDList
Address of an ITEMIDLIST structure to contain an item identifier list uniquely identifying the file to execute. This member is ignored if the fMask member is not set to SEE_MASK_IDLIST.
lpClass
Address of a null-terminated string specifying the name of a file class or a globally unique identifier (GUID).This member is ignored if fMask is not set to SEE_MASK_CLASSNAME.
hkeyClass
Handle to the registry key for the file class. This member is ignored if fMask is not set to SEE_MASK_CLASSKEY.
dwHotKey
Hot key to associate with the application. The low-order word is the virtual key code, and the high-order word is a modifier flag (HOTKEYF_). For a list of modifier flags, see the description of theWM_SETHOTKEY message. This member is ignored if fMask is not set to SEE_MASK_HOTKEY.
hIcon
Handle to the icon for the file class. This member is ignored if fMask is not set to SEE_MASK_ICON.
hProcess
Handle to the newly started application. This member is set on return and is always NULL if fMask is not set to SEE_MASK_NOCLOSEPROCESS.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.