Re: How do delete a directory and its contents? - C / C++ / MFC Discussion Boards

Re: OS version

Nish Nishant15-Mar-03 5:51

Nish Nishant

15-Mar-03 5:51

Use GetVersionEx

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Review by Shog⁹
Click here for review[NW]

How do delete a directory and its contents?

IGx8915-Mar-03 5:21

IGx89

15-Mar-03 5:21

How do I delete a directory and its contents? I've tried DeleteFile and SHFileOperation, but with no luck Frown | :(

Re: How do delete a directory and its contents?

Dominik Reichl15-Mar-03 5:31

Dominik Reichl

15-Mar-03 5:31

To delete all files in a directory, you have to enumerate all files recursively and delete every file separately.

See these articles for how to do it:

Delete folders, subfolders and files easily
http://www.codeproject.com/file/removefiles.asp[^]

Empty Directory Utility Under NT
http://www.codeguru.com/files/delTree.shtml[^]
Also works on Win9x.

Delete Directory
http://www.codeguru.com/files/delete.html[^]

Happy kicking data out of the world Big Grin | :-D

-Dominik

_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??

Re: How do delete a directory and its contents?

Nish Nishant15-Mar-03 5:32

Nish Nishant

15-Mar-03 5:32

SHFileOperation is the right way to do it. Show your code, perhaps you are not doing it right.

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Review by Shog⁹
Click here for review[NW]

Re: How do delete a directory and its contents?

IGx8915-Mar-03 5:34

IGx89

15-Mar-03 5:34

bool SHCopyFile(CString ExistingFile,CString NewFile)<br />
{<br />
	bool RetVal = false;<br />
	SHFILEOPSTRUCT FileOp;<br />
	ZeroMemory ( &FileOp, sizeof ( FileOp ) );<br />
	FileOp.hwnd = theDlg->m_hWnd;<br />
	FileOp.wFunc = FO_COPY;<br />
<br />
	FileOp.pFrom = new char[300];<br />
	strcpy((char*)FileOp.pFrom,ExistingFile.GetBuffer());<br />
	ExistingFile.ReleaseBuffer();<br />
<br />
	FileOp.pTo = new char[300];<br />
	strcpy((char*)FileOp.pTo,NewFile.GetBuffer());<br />
	NewFile.ReleaseBuffer();<br />
<br />
	if(SHFileOperation(&FileOp) == 0)<br />
		RetVal = true;<br />
	else<br />
		RetVal = false;<br />
<br />
	delete FileOp.pFrom;<br />
	delete FileOp.pTo;<br />
	return RetVal;<br />
}

This is the copy code, but the delete code is just like it (except for wFunc and pTo). Actually, I can't get this function to work, either; am I doing something wrong with allocating pFrom and pTo?

Re: How do delete a directory and its contents?

Nish Nishant15-Mar-03 5:49

Nish Nishant

15-Mar-03 5:49

I just tried this code out and it worked fine on my machine :-

SHFILEOPSTRUCT FileOp = {0};
FileOp.hwnd = m_hWnd;
FileOp.wFunc = FO_COPY;
FileOp.pFrom = "c:\\abc";
FileOp.pTo = "c:\\abccopy";
SHFileOperation(&FileOp);

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Review by Shog⁹
Click here for review[NW]

Re: How do delete a directory and its contents?

IGx8915-Mar-03 6:46

IGx89

15-Mar-03 6:46

If I do FileOp.pFrom = "d:\\testdir", it works, but if I do FileOp.pFrom = Dir.GetBuffer() it doesn't work, even though Dir=d:\testdir!

Also, I've been fiddling with the copy operation:

bool SHCopyFile(CString ExistingFile,CString NewFile)<br />
{<br />
	bool RetBool = false;<br />
	SHFILEOPSTRUCT FileOp;<br />
	ZeroMemory ( &FileOp, sizeof ( FileOp ) );<br />
	if(theDlg != NULL)<br />
		FileOp.hwnd = theDlg->m_hWnd;<br />
	//FileOp.fFlags = FOF_NOCONFIRMATION | FOF_NOERRORUI;<br />
	FileOp.wFunc = FO_COPY;<br />
<br />
	FileOp.pFrom = "d:\\test.zip";//ExistingFile.GetBuffer();<br />
	ExistingFile.ReleaseBuffer();<br />
<br />
	FileOp.pTo = NewFile.GetBuffer();<br />
	NewFile.ReleaseBuffer();<br />
<br />
	int RetVal = SHFileOperation(&FileOp);<br />
	if(RetVal == 0)<br />
		RetBool = true;<br />
	else<br />
		RetBool = false;<br />
<br />
	return RetBool;<br />
}

If FileOp.pFrom ="d:\\test.zip", it works, but if I use ExistingFile, it doesn't. It works fine with FileOp.pTo = NewFile.GetBuffer(), though, if pFrom = "d:\\test.zip"!

Re: How do delete a directory and its contents?

Michael Dunn15-Mar-03 6:45

Michael Dunn

15-Mar-03 6:45

Read the SHFileOperation() docs carefully, pFrom and pTo have to be double null terminated strings. Fill the arrays you allocate for pFrom and pTo with zeros.

--Mike--
THERE IS NO THERE IS NO BUT THERE IS MAGIC PIXIE DUST BUSINESS GENIE CODE PROJECT

Homepage | RightClick-Encrypt | 1ClickPicGrabber
"Which comes first, the bug or the stress?" -- Chris Maunder

Re: How do delete a directory and its contents?

IGx8915-Mar-03 6:56

IGx89

15-Mar-03 6:56

Ok, that works, but now I can't call delete on anything because of "HEAP[FLModManager.exe]: Heap block at 003F2CB8 modified at 003F2E10 past requested size of 150"

My code:

bool SHCopyFile(CString ExistingFile,CString NewFile)<br />
{<br />
	bool RetBool = false;<br />
	SHFILEOPSTRUCT FileOp;<br />
	ZeroMemory ( &FileOp, sizeof ( FileOp ) );<br />
	if(theDlg != NULL)<br />
		FileOp.hwnd = theDlg->m_hWnd;<br />
	//FileOp.fFlags = FOF_NOCONFIRMATION | FOF_NOERRORUI;<br />
	FileOp.wFunc = FO_COPY;<br />
<br />
	FileOp.pFrom = new char[300];<br />
	strset((char*)FileOp.pFrom,0);<br />
	strcpy((char*)FileOp.pFrom,ExistingFile.GetBuffer());<br />
	ExistingFile.ReleaseBuffer();<br />
<br />
	FileOp.pTo = new char[300];<br />
	strset((char*)FileOp.pTo,0);<br />
	strcpy((char*)FileOp.pTo,NewFile.GetBuffer());<br />
	NewFile.ReleaseBuffer();<br />
<br />
	int RetVal = SHFileOperation(&FileOp);<br />
	if(RetVal == 0)<br />
		RetBool = true;<br />
	else<br />
		RetBool = false;<br />
<br />
	//delete FileOp.pFrom;<br />
	//delete FileOp.pTo;<br />
	return RetBool;<br />
}

Re: How do delete a directory and its contents?

Michael Dunn15-Mar-03 9:56

Michael Dunn

15-Mar-03 9:56

Use memset() instead of strset()

--Mike--
THERE IS NO THERE IS NO BUT THERE IS MAGIC PIXIE DUST BUSINESS GENIE CODE PROJECT

Homepage | RightClick-Encrypt | 1ClickPicGrabber
"Which comes first, the bug or the stress?" -- Chris Maunder

Re: How do delete a directory and its contents?

IGx8915-Mar-03 11:45

IGx89

15-Mar-03 11:45

Thanks, that worked!

Re: How do delete a directory and its contents?

r i s h a b h s16-Mar-03 17:45

r i s h a b h s

16-Mar-03 17:45

why????????
Confused | :confused:

What is that "The format of the file 'lc.exe' is invalid."

cemlouis15-Mar-03 3:41

cemlouis

15-Mar-03 3:41

Hi, I get an error when i want to compile an empty C# form...

C:\C++\WindowsApplication1\licenses.licx Could not transform licenses file 'licenses.licx' into a binary resource. The format of the file 'lc.exe' is invalid.

What is that???

Re: What is that "The format of the file 'lc.exe' is invalid."

RobJones15-Mar-03 6:30

RobJones

15-Mar-03 6:30

I'm not sure but I did a search on Yahoo / Google and found someone with the same problem, they said that they deleted the license file then rebuilt and it fixed their problem.. maybe try renaming the file to .old or something like that and try to re-compile..

Rob

Whoever said nothing's impossible never tried slamming a revolving door!

Re: What is that "The format of the file 'lc.exe' is invalid."

RobJones15-Mar-03 6:32

RobJones

15-Mar-03 6:32

Found this too.. http://support.dundas.com/Articles/ArticleBody.asp?ArticleID=713

It also says to delete the file from the project..

Whoever said nothing's impossible never tried slamming a revolving door!

Transparent checkbox

_crs_15-Mar-03 2:28

_crs_

15-Mar-03 2:28

I want to create some checkboxes dynamicaly from code and I want them tranparent. The problem is that I tried to create them from resource with the trasparent atribute (WS_EX_TRASPARENT) but it still didn't work. Anyway my problem is to create them dynamically. Any ideas, sugestions ?

Re: Transparent checkbox

Brian Shifrin15-Mar-03 3:53

Brian Shifrin

15-Mar-03 3:53

WS_EX_TRASPARENT style does not make it transparent, just tells window to paint control after children. I am sure you can find plenty custom draw samples on this and others websites.

brian

Re: Transparent checkbox

Michael Dunn15-Mar-03 6:47

Michael Dunn

15-Mar-03 6:47

Handle WM_CTLCOLORBTN and in your handler, call SetBkMode(TRANSPARENT) on the HDC that is passed in the message's wParam.

--Mike--
THERE IS NO THERE IS NO BUT THERE IS MAGIC PIXIE DUST BUSINESS GENIE CODE PROJECT

Homepage | RightClick-Encrypt | 1ClickPicGrabber
"Which comes first, the bug or the stress?" -- Chris Maunder

mouse cursor leaving child-window (api)

Zoomby15-Mar-03 1:20

Zoomby

15-Mar-03 1:20

hi,

How can I check if the mouse cursor is leaving a child-window? (using api)

bye
chris

Re: mouse cursor leaving child-window (api)

Brian Shifrin15-Mar-03 1:51

Brian Shifrin

15-Mar-03 1:51

Hmm, same as everywhere else SetCapture(HWND);

SetCapture doesn't work for me

Zoomby15-Mar-03 2:58

Zoomby

15-Mar-03 2:58

yes, but I need a "onMouseOver" effect for a button (sees if the mouse is leaving the child window with no mousebutton pressed) which always works. But I can't always have the capture. SetCapture only works fine when I have a "onMouseClick" effect.

bye
chris

Re: SetCapture doesn't work for me

Mike Nordell15-Mar-03 3:10

Mike Nordell

15-Mar-03 3:10

I believe WM_MOUSEMOVE is what you need.

Re: SetCapture doesn't work for me

Brian Shifrin15-Mar-03 3:23

Brian Shifrin

15-Mar-03 3:23

You did not post very good description....

TrackMouseEvent is what you want.

Re: mouse cursor leaving child-window (api)

User 665815-Mar-03 3:20

User 6658

15-Mar-03 3:20

TRACKMOUSEEVENT t_MouseEvent;
t_MouseEvent.cbSize      = sizeof(TRACKMOUSEEVENT);
t_MouseEvent.dwFlags     = TME_LEAVE | TME_HOVER;
t_MouseEvent.hwndTrack   = m_hWnd;
t_MouseEvent.dwHoverTime = 1;

// We Tell Windows we want to receive WM_MOUSEHOVER and WM_MOUSELEAVE
::_TrackMouseEvent(&t_MouseEvent);

you will now receive the WM_MOUSEHOVER and WM_MOUSELEAVE messages, the last one is the one you want Smile | :)

regards

modified 12-Sep-18 21:01pm.

Re: mouse cursor leaving child-window (api)

Zoomby15-Mar-03 5:54

Zoomby

15-Mar-03 5:54

thanks Gregor S.! but it doesn't work here. I uses exactly the code you postet on WM_CREATE of the window (OS: Windows ME). _TrackMouseEventcalled returns no error. But the messages are not sent. I also checked it with Spy++.
any suggestions?

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