Re: TextWidth - C / C++ / MFC Discussion Boards

Cedric Moonen8-Jul-09 2:51

8-Jul-09 2:51

LPRECT is a pointer to a RECT structure. In your case, you didn't initialize the pointer, so whe nthe constructor of CRect is trying the content of the pointer, this causes an access violation.

Cédric Moonen
Software developer

Charting control [v2.0]
OpenGL game tutorial in C++

Re: Convert LPRECT to Crect

kumar sanghvi8-Jul-09 3:04

kumar sanghvi

8-Jul-09 3:04

it was initialised and having the left,right and top values also..

Re: Convert LPRECT to Crect

Adam Roderick J8-Jul-09 2:52

Adam Roderick J

8-Jul-09 2:52

Hope u didnt allocated LPRECT?
LPRECT lpRect = new RECT();
lpRect->left = 100;
lpRect->right = 200;
lpRect->top = 230;
CRect rec(lpRect);
otherwise no probs Smile | :)

Re: Convert LPRECT to Crect

CPallini8-Jul-09 3:16

CPallini

8-Jul-09 3:16

Don't you like the bottom part?
Big Grin | :-D

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: Convert LPRECT to Crect

CPallini8-Jul-09 3:18

CPallini

8-Jul-09 3:18

They show how to do it [^].
Smile | :)

TextWidth

kumar sanghvi8-Jul-09 0:56

kumar sanghvi

8-Jul-09 0:56

Hi,
May i know how can i get the width of the text inside the button control..

where as using DrawText() function it returns height of the text...

and also i need to drawfocus rect just around the text inside the control...
Please let me know...

Re: TextWidth

Rajesh R Subramanian8-Jul-09 0:58

Rajesh R Subramanian

8-Jul-09 0:58

See GetTextMetrics().

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

Re: TextWidth

David Crow8-Jul-09 2:36

David Crow

8-Jul-09 2:36

kumar sanghvi wrote:
May i know how can i get the width of the text inside the button control..

Use GetWindowText() to get the button's text, and then call GetTextExtent() (or related function) to get its width and heighth.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

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how to shut down the PC programatically.

saksp8-Jul-09 0:44

saksp

8-Jul-09 0:44

I am using Smart device application & MFC option in VS2005 I want to shut down the PC programatically.
how to do that?

thanks

Re: how to shut down the PC programatically.

Madhu Nair8-Jul-09 0:50

Madhu Nair

8-Jul-09 0:50

saksp wrote:
shut down the PC programatically

ExitWindowsEx[^] or InitiateSystemShutdown[^]

Re: how to shut down the PC programatically.

«_Superman_»8-Jul-09 0:51

«_Superman_»

8-Jul-09 0:51

You just beat me to it. Smile | :)

«_Superman_»
I love work. It gives me something to do between weekends.

Re: how to shut down the PC programatically.

Madhu Nair8-Jul-09 0:55

Madhu Nair

8-Jul-09 0:55

«_Superman_» wrote:
You just beat me to it.

I had two RedBulls for lunch Big Grin | :-D

Re: how to shut down the PC programatically.

saksp8-Jul-09 1:34

saksp

8-Jul-09 1:34

I tried both the functions but they are not working for Smart device application.

thanks

Re: how to shut down the PC programatically.

Madhu Nair8-Jul-09 2:00

Madhu Nair

8-Jul-09 2:00

saksp wrote:
they are not working for Smart device application

Try this piece of code; MSDN Link[^]

keybd_event(VK_OFF,0,KEYEVENTF_SILENT,0);
keybd_event(VK_OFF,0,KEYEVENTF_SILENT | KEYEVENTF_KEYUP,0);
sleep(60);

Re: how to shut down the PC programatically.

«_Superman_»8-Jul-09 0:50

«_Superman_»

8-Jul-09 0:50

Use InitiateSystemShutdown[^]

«_Superman_»
I love work. It gives me something to do between weekends.

IWebBrowser2 problem

YaronNir8-Jul-09 0:41

YaronNir

8-Jul-09 0:41

Hi all,

I have CWebBrowser wrapper for IWebBrowser2 class. i use it to run flash and static images.

Problem is sometimes my application crashes because of certain flash that is running inside the web browser. (i can not tell which flash causes this).

i have several computers which has visual studio debugger, so after this crash i see the debugger dialog...
someone has suggested the problem is permission...but i am not sure...

is there a way to catch or neutralizer the crash via IWebBrowser2?

thanks for any thoughts or solutions

Yaron

Interface basics click here :
http://www.codeproject.com/com/COMBasics.asp

don't forget to vote Smile | :)

Re: IWebBrowser2 problem

Madhu Nair8-Jul-09 0:45

Madhu Nair

8-Jul-09 0:45

YaronNir wrote:
is there a way to catch or neutralizer the crash via IWebBrowser2?

Did you tried catch(...) ?
Then NO.

Re: IWebBrowser2 problem

YaronNir8-Jul-09 0:53

YaronNir

8-Jul-09 0:53

of course

is there a way to catch the error from the IHTmlDocument or something like that?

thanks

Interface basics click here :
http://www.codeproject.com/com/COMBasics.asp

don't forget to vote Smile | :)

Re: IWebBrowser2 problem

YaronNir8-Jul-09 1:58

YaronNir

8-Jul-09 1:58

i saw something on MSDN:

http://support.microsoft.com/kb/317024[^]

but the question is if the page creates iframe within iframe within iframe (which is out of my control) and i place on error at the top of the html (not the inner iframe) will it be caught?

Interface basics click here :
http://www.codeproject.com/com/COMBasics.asp

don't forget to vote Smile | :)

String manipulation.

Comp_Users8-Jul-09 0:32

Comp_Users

8-Jul-09 0:32

Hi Guys,

I want to write an function which will accept an file name(along with complete path), append an prefix to it (say Admin to the file name from c:\Sample\sam.txt to c:\Sample\Adminsam.txt). I have written an function via character array manipulation and given below.

<br />
#define ADMIN_PREFIX			_T("Admin")<br />
static void RenameToAdminFile(LPCTSTR szFilePath/*in*/, LPTSTR szAdminFilePath/*out*/)<br />
{<br />
    TCHAR szTempFilePath[MAX_PATH] = _T(""), *pCh;<br />
	TCHAR szFileName[MAX_PATH] = _T("");<br />
	_tcscpy(szTempFilePath, szFilePath);<br />
	bool bValidPath = false;<br />
	<br />
    if (pCh = _tcsrchr( szTempFilePath, _T('\\')))<br />
    {<br />
        pCh++; // Keep trailing "\\"<br />
		_tcscpy(szFileName, pCh);<br />
        *pCh = _T('\0');<br />
		bValidPath = true;<br />
    }<br />
    else<br />
    {<br />
        if (pCh = _tcsrchr( szTempFilePath, _T(':')))<br />
        {<br />
            pCh++; // Keep trailing ":"<br />
			_tcscpy(szFileName, pCh);<br />
            *pCh = _T('\0');<br />
            _tcscat(szTempFilePath, _T("\\"));<br />
			bValidPath = true;<br />
        }<br />
        else<br />
        {<br />
            *szTempFilePath=_T('\0');<br />
        }<br />
    }<br />
	if(bValidPath)<br />
	{<br />
		TCHAR szTempAdminFileName[MAX_PATH] = ADMIN_PREFIX;<br />
		_tcscat(szTempAdminFileName, szFileName);<br />
		_tcscat(szTempFilePath, szTempAdminFileName);<br />
	}<br />
	_tcscpy(szAdminFilePath, szTempFilePath);<br />
	return;<br />
}

Are there any STL API's (Not CString methods)that I could use to achieve the same? An code snippet will be of great help.

Re: String manipulation.

«_Superman_»8-Jul-09 0:49

«_Superman_»

8-Jul-09 0:49

Use _tsplitpath to separate the drive letter, folder name, file name and extension into separate variables.
Now you can change the filename by attaching "Admin" into another buffer using _tcscpy_s and _tcscat_s and then stitch the full path back together using _stprintf_s.

«_Superman_»
I love work. It gives me something to do between weekends.

Re: String manipulation.

Comp_Users8-Jul-09 1:14

Comp_Users

8-Jul-09 1:14

Thanks for the Info.

Yes. You can use _wsplitpath to split the file path into Drive letters, directory, filename, and file extension and now you can do any manipulation with any of the individual members like appending the file name with an string.
Now you can put individual file info togather using the api _makepath.

Re: String manipulation.

Stuart Dootson8-Jul-09 1:14

Stuart Dootson

8-Jul-09 1:14

Good spot - wasn't aware of that one. There is now a 'safe' version of that[^] that MS propose you use instead...

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: String manipulation.

Stuart Dootson8-Jul-09 1:10

Stuart Dootson

8-Jul-09 1:10

std::string RenameToAdminFile(std::string const& file)
{
   std::string::size_type lastSep = file.find_last_of('\\');
   if (lastSep != std::string::npos)
   {
      return file.substr(0, lastSep+1) + "Admin" + file.substr(lastSep+1);
   }
   else
   {
      return "Admin" + file;
   }
}

?

Hack-amungous, of course, as it assumes various things. As I suggested to someone else today - Boost.FileSystem[^] is a nice (and cross-platform) path manipulation library.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

CHtmlEditCtrl problem :(

bosfan8-Jul-09 0:10

bosfan

8-Jul-09 0:10

Hi,
i try to put some html code with flash content and java script to this control, but this is not shown when i use the function SetDocumentHTML() !!
If i use Navigate the site with the same content is showed exactly!?

Are they any known problems between this control and scripts and flash??
Thanks for any help!!

regards
ternal

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