CXListCtrl questions - C / C++ / MFC Discussion Boards

toxcct31-Mar-05 19:59

31-Mar-05 19:59

C++ is compiled, not interpreted...

I don't think this is possible to do, unless (as it has been said) you add a compiler

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Passing arguments to a worker thread function

gecool31-Mar-05 7:04

gecool

31-Mar-05 7:04

Hi everyone:->. I need to pass some arguments to a worker thread function (VC++), but i don't know how to do that ... the MSDN says : UINT MyControllingFunction( LPVOID pParam ), but I need to pass to MyControllingFunction other parameters too. If anyone can help, please do it. Smile | :)

Re: Passing arguments to a worker thread function

Chris Meech31-Mar-05 8:17

Chris Meech

31-Mar-05 8:17

The LPVOID pParam should be set to point to a structure that contains all of the parameters that you wish to pass. Is this what you need? Smile | :)

Chris Meech

I am Canadian. [heard in a local bar]

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Re: Passing arguments to a worker thread function

ThatsAlok31-Mar-05 17:58

ThatsAlok

31-Mar-05 17:58

I demonstrate by passing your Class pointer to your Worker thread.

Let your class be CMyClass and Worker thread function something like this

[vccode]
 // Thread function
 UINT <code>MyControllingFunction</code>( LPVOID pParam );

 // Class
  void CMyClass::StartThread();
  {
    AfxBeginThread(&<code>MyControllingFunction</code>,(LPVOID)<code>this</code>);

  }

 // Actual Defination of Worker Thread
  UINT MyControllingFunction( LPVOID pParam )
  {
   CMyClass *<code>pMainClass</code>=(CMyClass*)<code>pParam</code>;
   //do something with pMainClass.......
 
   //end thread
   return 0;
  }

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Alok Gupta
visit me at http://www.thisisalok.tk

"I ~~Think~~ Believe this Will Help"

Question about CFileDialog

Fernando A. Gomez F.31-Mar-05 6:33

Fernando A. Gomez F.

31-Mar-05 6:33

Hello all. I have a button that loads a file dialog, CFileDialog. I'm trying that the user enters a PATH name rather than a FILE name. However, the CFileDialog only allows me to enter file names. ¿What do I have to do?

Here's what I'm doing, rather simple.

<br />
CFileDialog wndDialog(<br />
		TRUE,<br />
		NULL,<br />
		NULL,<br />
		OFN_PATHMUSTEXIST | OFN_HIDEREADONLY,<br />
		NULL,<br />
		this<br />
	);<br />
	wndDialog.DoModal();<br />
<br />
	m_strDestPath = wndDialog.GetPathName();<br />
	SetDlgItemText(IDC_NEWTRAN_DESTPATH, m_strDestPath);<br />
<br />

Regards,
K.K.

Only the good dies young...

Re: Question about CFileDialog

C^hris L^osinger31-Mar-05 6:58

C^hris L^osinger

31-Mar-05 6:58

try the ::ShBrowseForFolder function. that's the standard Windows browse for folder dialog.

Image Toolkits | Image Processing | Cleek

Re: Question about CFileDialog

NewbieStats31-Mar-05 7:31

NewbieStats

31-Mar-05 7:31

http://www.mindcracker.com/mindcracker/c_cafe/mfc/filedlg.asp[^]

Does that Help?

/* Just a Human Trying to Live in a Computers World. */

CXListCtrl questions

Kyle P31-Mar-05 6:25

Kyle P

31-Mar-05 6:25

I am tring to use the ToolTips with this tool and would like a multi-line tool tip. You Set the Tooltip with a String and I am trying to embed \r\n and such in the CString to create a larger Text Box of area for the ToolTip. My goal is that a person would not have to go to a next screen to see all the data but get an idea of what is there from a current screen. Any help

thank you

Kyle

Button Creation at Runtime....

blinkered31-Mar-05 5:41

blinkered

31-Mar-05 5:41

Bit of a Newbie to this so bare with me...

In my Visual C++ 6 Project, I have a Form View whereby I wish to create another button dependant on results from a Database. In the OnInitialUpdate() of the form I am trying to use the Create Function - but can only generate a debug assertion Failure. Is have used this line of code:

m_Button.Create("My button", WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON,
CRect(10,10,100,30), this, 1);

Am I doing anything obviously wrong?

Any help would be appreciated...

Re: Button Creation at Runtime....

Alexander ^M.,31-Mar-05 12:18

Alexander ^M.,

31-Mar-05 12:18

Place code like that in OnInitDialog.

Don't try it, just do it! Wink | ;-)

Re: Button Creation at Runtime....

blinkered31-Mar-05 21:25

blinkered

31-Mar-05 21:25

Thanks - that works a treat. Next question though, how can I create an OnClick Event Handler for this button that will distinguish between the different Buttons I have created from the original Button object?

Re: Button Creation at Runtime....

ThatsAlok31-Mar-05 18:28

ThatsAlok

31-Mar-05 18:28

blinkered wrote:
m_Button.Create("My button", WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON,
CRect(10,10,100,30), this, 1);

it working fine here in my test project,what ASSERTION notice are you getting.Second put a valid ID of button instead of Putting ID=1

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Alok Gupta
visit me at http://www.thisisalok.tk

"I ~~Think~~ Believe this Will Help"

MFC dll and mysql

ns31-Mar-05 5:19

31-Mar-05 5:19

I have an mFC dll into which I want to use mysql. So in the projrct settings c++ tab in project options i put:

"C:\mysql\mysql-noinstall-4.1.10-win32\mysql-4.1.10-win32\include" /

but the compiler says:

Command line warning D4002 : ignoring unknown option '/'<br />
Command line warning D4024 : unrecognized source file type 'C:\mysql\mysql-noinstall-4.1.10-win32\mysql-4.1.10-win32\include', object file assumed<br />
Command line warning D4027 : source file 'C:\mysql\mysql-noinstall-4.1.10-win32\mysql-4.1.10-win32\include' ignored

Project options now look like:
/nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_WINDLL" /D "_MBCS" /D "_USRDLL" /Fo"Release/" /Fd"Release/" /FD / "C:\mysql\mysql-noinstall-4.1.10-win32\mysql-4.1.10-win32\include" /c

used to look like the foll before i put in mysql, and it compiled fine

Thanks for helping,
sb
/nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_WINDLL" /D "_MBCS" /D "_USRDLL" /Fo"Release/" /Fd"Release/" /FD /c

Re: MFC dll and mysql

Ryan Binns31-Mar-05 17:53

Ryan Binns

31-Mar-05 17:53

ns wrote:
"C:\mysql\mysql-noinstall-4.1.10-win32\mysql-4.1.10-win32\include" /

The compiler will attempt to interpret this as a parameter. Since there is no flag before the path name, it assumes it is a file that it needs to compile. The '/' by itself will be interpreted as an invalid parameter. If your intention is to add a folder to the list of folders to search for header files in, use:

/I"C:\mysql\mysql-noinstall-4.1.10-win32\mysql-4.1.10-win32\include"

or add the folder to the include folder list in the program options.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

Problem dragging and copying from WebBrowser control

Skute31-Mar-05 5:10

Skute

31-Mar-05 5:10

Hi, i have a control on my dialog which implements the IWebBrowser interface, but im having great difficulty getting dragging or copying to work from any page! As a test, im trying to drag the main google image from "www.google.co.uk". I have an example from http://www.codeguru.com/Cpp/I-N/internet/browsercontrol/article.php/c3379/[^] and that example works fine, you can drag to images to the desktop etc. The only difference i can see is that the example is in a View, and my code is in a Dialog.

Any help on the subject much appreciated!

Skute

Program Startup Folder

Eurosid31-Mar-05 5:03

Eurosid

31-Mar-05 5:03

How can I determine the folder where the .exe file is saved?

I must do this without the registry due to goofy security
restrictions on the PC where this app will run.

Re: Program Startup Folder

BadJerry31-Mar-05 5:45

BadJerry

31-Mar-05 5:45

<br />
	TCHAR lpszPath[MAX_PATH] = {0};<br />
	DWORD dwResult = ::GetModuleFileName(AfxGetInstanceHandle(), lpszPath, MAX_PATH);<br />

Re: Program Startup Folder

Eurosid31-Mar-05 5:58

Eurosid

31-Mar-05 5:58

Thank you!!! Smile | :)

That does exactly what I need.

Re: Program Startup Folder

Michael Dunn31-Mar-05 11:34

Michael Dunn

31-Mar-05 11:34

You're asking for two different things there. I take "startup folder" to mean the "current directory" of the process, which doesn't have to be the same as the dir where the EXE is. If you want the current directory, call GetCurrentDirectory().

--Mike--
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Strange things are afoot at the U+004B U+20DD

Re: Program Startup Folder

Eurosid4-Apr-05 3:18

Eurosid

4-Apr-05 3:18

That works too, thanks.

Browser Helper Object (BHO)

kokain31-Mar-05 4:57

kokain

31-Mar-05 4:57

I develope a DLL that is loaded with every instance of Internet Explorer. In the DLL, I want to handle something like "BeforeNavigate" event to get the URL user enter in the Adress Bar.

I've written this DLL before in C#. And in C#, handle this event is quite easy, just write something like:

WebBrowser browser;

browser.BeforeNavigate2 += new DWebBrowserEvents2_BeforeNavigate2EventHandle(this.BeforeNavigate);

But now, I have to write it in Visual C++ 6.0. How can I handle this event in Visual C++ 6.0?

Hope to see your replies soon.
Thanks.

Re: Browser Helper Object (BHO)

Michael Dunn31-Mar-05 11:36

Michael Dunn

31-Mar-05 11:36

The answer depends on whether you're using the APIs, ATL, or MFC. I have a sample using WTL at http://www.codeproject.com/wtl/wtl4mfc6.asp[^][^] (it's not a BHO but the method for handling the events is the same).

--Mike--
LINKS~! Ericahist | 1ClickPicGrabber | CP SearchBar v2.0.2 | C++ Forum FAQ
Strange things are afoot at the U+004B U+20DD

Recognizing Temp Folder in OnDropFile

rajas31-Mar-05 4:00

rajas

31-Mar-05 4:00

Hi,

I have a windows which accepts file names being dragged in (Drag AcceptFiles, OnDropFile..).
Everything works as intended when a file name is dropped from the explorer window or another window which has list of files/folders. However, when the user drags an image from a website, or an attachment from an e-mail and drops it on the Window, OnDropFile is called and a temporary folder/file name is given to the window. I need to recognize when this happens and alert the user - how can I recognize the folder as a temporary one - The location of the TEMP folder is dependent on the OS, but also seems to depend on the application - e.g. Outlook has its own temp folder, the browser uses another etc.

Thanks in advance for any help

Re: Recognizing Temp Folder in OnDropFile

Blake Miller31-Mar-05 12:06

Blake Miller

31-Mar-05 12:06

I am not sure there is ANY way to tell whatsoever, but a first good guess, assuming an application followed the proper API would be to call GetFileAttributes and check for this bit set : FILE_ATTRIBUTE_TEMPORARY

Now, granted, I have never checked for this bit, and it would be curious to see if any 'temporary' files actually have it set or not.

Re: Recognizing Temp Folder in OnDropFile

rajas31-Mar-05 17:56

rajas

31-Mar-05 17:56

Thanks.

I will try and see what I find.

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