Re: void function - C / C++ / MFC Discussion Boards

Re: How to change text of the menu item?

manish.patel3-Nov-08 1:16

3-Nov-08 1:16

Thanks for quick reply,

I have seen that function. It runs fine but i am not able to see any change to the text of the menu item.

Is there any rule to use this function, If so then please let me know.

Let me know if you have any other solution.

Thanks and Regards,

Manish Patel.
B.E. - Information Technology.

Re: How to change text of the menu item?

Nishad S3-Nov-08 1:25

Nishad S

3-Nov-08 1:25

Sample:

CMenu* pMenu = GetMenu();
pMenu->ModifyMenu( ID_FILE_SAVE, 0, ID_FILE_SAVE, "New Save" );

- NS -
[ODBaseBtn]

Re: How to change text of the menu item?

manish.patel3-Nov-08 1:46

manish.patel

3-Nov-08 1:46

Sorry but i am not able to use it with System Tray popup menu.

Actually i have used this library to create a System Tray pop up menu.

http://www.codeproject.com/KB/shell/systemtray.aspx[^]

So, Do you have any idea on this?

Regards,

Manish Patel.
B.E. - Information Technology.

Re: How to change text of the menu item?

Nishad S3-Nov-08 2:07

Nishad S

3-Nov-08 2:07

I am not familiar with that library. Anyway if you have the menu handle, then you can surely update it.

But I could find a BOOL SetMenuText(UINT uiCmd, LPCTSTR szText); in the documentation... Did you try that?

- NS -
[ODBaseBtn]

Re: How to change text of the menu item?

Maximilien3-Nov-08 3:05

Maximilien

3-Nov-08 3:05

You can add a UI handler for the menu item

ON_UPDATE_COMMAND_UI

and do something like

void CYourClass::OnUpdateYourMenuItem(CCmdUI* pCmdUI)
{
  pCmdUI->SetText("New Menu Text");
}

Re: How to change text of the menu item?

Mike Gaskey19-Aug-12 5:29

Mike Gaskey

19-Aug-12 5:29

Wanted to say, thanks for posting this. I had been scratching my head trying to figure out how to do this and was making it a far more difficult chore than it needed to be. This was the answer, so simple that I hadn't even considered it. worked perfectly by the way.

Mike - typical white guy.

"Political correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a piece of sh*t by the clean end."

Thomas Mann - "Tolerance becomes a crime when applied to evil."

As American as: hot dogs, apple and Sarah Palin.

void function

susanne13-Nov-08 0:25

susanne1

3-Nov-08 0:25

hi to all,
need to pass a string to a void function that does not have a parameter, looks like that:

int CMyString::GetLength (void)const
{

}

in the main function, the code is follow

CMyString string1;
string1 = "Hello world!";
int nLen = string1.GetLength();// should give nLen = 11.

The class CMyString should work like the class String in this case.
Do not k now how to implement the function GetLength().
Any help will be appriciated. Thanks.

Re: void function

Maximilien3-Nov-08 0:34

Maximilien

3-Nov-08 0:34

you don't know how to create a method in your own class ?

the class CMyString should hold a member variable that holds the buffer of some sort of the string.

just create a method that just do a strlen (if the buffer is a char* ) on the member variable.

something like :
class CMyString
{
//... some other stuff
char* m_internalBuffer;

int GetLength(){ return strlen(m_internalBuffer);};
}

Re: void function

CPallini3-Nov-08 0:55

CPallini

3-Nov-08 0:55

You should (like CString, for instance does):

define a CMyString constructor accepting a const char * as argument.
overload the CMyString assignment operator (=) to accept a const char * as argument.
both of the above methods should initialize CMyString internal data member (a character buffer, for instance).
define a GetLenght method returning the strlen of the internal character buffer.

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Re: void function

David Crow3-Nov-08 3:21

David Crow

3-Nov-08 3:21

susanne1 wrote:
string1 = "Hello world!";
int nLen = string1.GetLength();// should give nLen = 11.

Why would you want to use a function that returned an incorrect value?

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: void function

CPallini3-Nov-08 3:33

CPallini

3-Nov-08 3:33

You're so meticulous, my 5.
Smile | :)

Check for file existence, and distinguish files from folders

Erik3-Nov-08 0:00

Erik

3-Nov-08 0:00

Hello,

I want to use a C++ function in order to check if a filename exists. I have already tried to use _access as well as _stat, but these functions also return true if the filename given is a fooldername instead. So how can I distinguish if it's a really a file or only a folder?

Re: Check for file existence, and distinguish files from folders

Rajesh R Subramanian3-Nov-08 0:13

Rajesh R Subramanian

3-Nov-08 0:13

Erik wrote:
I want to use a C++ function in order to check if a filename exists.

See PathFileExists()[^]

Erik wrote:
. So how can I distinguish if it's a really a file or only a folder?

See PathIsDirectory()[^]

It is a crappy thing, but it's life -^ Carlo Pallini

Re: Check for file existence, and distinguish files from folders

David Crow3-Nov-08 3:22

David Crow

3-Nov-08 3:22

Erik wrote:
So how can I distinguish if it's a really a file or only a folder?

There's also GetFileAttributes().

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Notepad creation in dialog based MFC Application

AnithaSubramani2-Nov-08 23:07

AnithaSubramani

2-Nov-08 23:07

Hi All,

I need to create a notepad in Dialog based MFC application.I need some idea about this.

Help me...... Smile | :)

Thanks & Regards,

Anitha

Re: Notepad creation in dialog based MFC Application

SandipG 2-Nov-08 23:14

SandipG

2-Nov-08 23:14

AnithaSubramani wrote:
I need to create a notepad in Dialog based MFC application.

Creating a SDI application and deriving view class from CEditView would be better choice for this.
I hope it helps.

Regards,
Sandip.

Re: Notepad creation in dialog based MFC Application

AnithaSubramani2-Nov-08 23:19

AnithaSubramani

2-Nov-08 23:19

Hi,

I need a example code.pls help me....

Re: Notepad creation in dialog based MFC Application

SandipG 2-Nov-08 23:24

SandipG

2-Nov-08 23:24

Does Notepad with RE[^] help?
It is advanced but you can get started.
If you want you can even follow this tutorial Creating notepad[^]

BTW:

AnithaSubramani wrote:
pls help me....

No need to write this in every post.
Everyone here will help you provided you give sufficient information.

Regards,
Sandip.

Re: Notepad creation in dialog based MFC Application

Russell^'2-Nov-08 23:39

Russell^'

2-Nov-08 23:39

Multipad[^]

hope helps

Russell

Re: Notepad creation in dialog based MFC Application

David Crow3-Nov-08 3:24

David Crow

3-Nov-08 3:24

AnithaSubramani wrote:
I need a example code.

Open Visual Studio. Create a new SDI project. Derive the view from CEditView.

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: Notepad creation in dialog based MFC Application

Mark Salsbery3-Nov-08 5:10

Mark Salsbery

3-Nov-08 5:10

AnithaSubramani wrote:
I need a example code

You can create a working notepad application with the App Wizard.

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

ON_CONTROL_REFLECT_EX and message to control and parent

Russell^'2-Nov-08 22:34

Russell^'

2-Nov-08 22:34

I want my control (CButton derived) has the same behaviour if CLICKED and DOUBLECLICKED.
Now, it is working well if CLICKED...I need to extend the functionality on DOUBLCLICK.
So, I simply added

ON_CONTROL_REFLECT_EX(BN_DOUBLECLICKED, CMyCButton::OnBnDblClicked)

In that function I want to do some similar to

BOOL CMyCButton::OnBnDblClicked(){
	PostMessage(WM_COMMAND, MAKELONG(GetDlgCtrlID(), BN_CLICKED), (LPARAM) GetSafeHwnd());
	return TRUE;  // TRUE to 'kill' the message: I don't want that the parent dialog receive it
}

But in that way only my control receive the message BN_CLICKED, not the parent Dialog.

Please, what is the right way to send/post to the control (together to it's parent) that message?

Russell

Re: ON_CONTROL_REFLECT_EX and message to control and parent

Nishad S2-Nov-08 23:03

Nishad S

2-Nov-08 23:03

Have a look at here[^]... Wink | ;)

- NS -
[ODBaseBtn]

Re: ON_CONTROL_REFLECT_EX and message to control and parent

Russell^'2-Nov-08 23:23

Russell^'

2-Nov-08 23:23

Thank you....but your solution looks work as my previus one, i.e. it is a perfect solution to manage the message inside the control, but his parent window doesn't receive the classic message BN_CLICKED
My be also I'm wronging something...

BOOL XBmpChkBtn::OnBnDblClicked(){
	//CWnd* pParent=GetParent();
	//if(pParent)
	//	pParent->PostMessage(WM_COMMAND, MAKELONG(GetDlgCtrlID(), BN_CLICKED), (LPARAM) GetSafeHwnd());
	const MSG* pstMSG = GetCurrentMessage();
    DefWindowProc(WM_COMMAND, MAKELONG(GetDlgCtrlID(), BN_CLICKED), (LPARAM) GetSafeHwnd());

	return TRUE;	// Kill the message
}

Russell

Re: ON_CONTROL_REFLECT_EX and message to control and parent

Nishad S2-Nov-08 23:29

Nishad S

2-Nov-08 23:29

Please correct as
DefWindowProc( WM_LBUTTONDOWN, pstMSG->wParam, pstMSG->lParam );

- NS -
[ODBaseBtn]

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