How to scroll CListView down ? - C / C++ / MFC Discussion Boards

David Crow21-Apr-04 2:52

21-Apr-04 2:52

chocm wrote:
...but some error occured

And that error would be what?

In the OnInitialUpdate() method, you have a local variable named m_ptr. How are you expecting to access this variable from within the OnDraw() method?

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: custom resource problem

chocm21-Apr-04 18:46

chocm

21-Apr-04 18:46

m_ptr is a member variable of CMyView, so I think it is valid in the OnDraw();

Re: custom resource problem

David Crow22-Apr-04 2:05

David Crow

22-Apr-04 2:05

So change the LPVOID m_ptr=::LockResource(hglb) statement to m_ptr=::LockResource(hglb) instead.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: custom resource problem

chocm22-Apr-04 18:26

chocm

22-Apr-04 18:26

Yes I have change the line to m_ptr=::LockResource(hglb), the problem is still the same, no text file was shown as expected.

I tried to set a breakpoint at the line:
HGLOBAL hglb=::LoadResource(::AfxGetApp()->m_hInstance,hrsrc);

and then pressed the button Go, in the output window, I got hrsrc's value is 0X00000000, clicked to extract the button left to the "hrsrc", there is some info shown as "unused CXX0030: Error: expression can't be evaluated"

the hglb's vaule is 0xcccccccc

Does the FindResource() work improperly? I need more suggestions, Thanks!

Re: custom resource problem

David Crow23-Apr-04 2:08

David Crow

23-Apr-04 2:08

chocm wrote:
Does the FindResource() work improperly?

Not if it is used correctly. If it, or LoadResource() are returning NULL, call GetLastError() to find out why.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: custom resource problem

chocm24-Apr-04 23:20

chocm

24-Apr-04 23:20

I was told to add the MAKEINTRESOURCE to the parametre in the function FindResource(), Then all the code began to work properly.

FindResource(::AfxGetApp()->m_hInstance,MAKEINTRESOURCE(IDR_MYTEXT1),"MYTEXT");

Another question, under what condition is the MAKEINTRESOURCE necessary?

Re: custom resource problem

David Crow26-Apr-04 2:20

David Crow

26-Apr-04 2:20

chocm wrote:
Another question, under what condition is the MAKEINTRESOURCE necessary?

See here.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

How to scroll CListView down ?

vgrigor20-Apr-04 23:26

vgrigor

20-Apr-04 23:26

I need to scroll CListView to bottom.

How to do it?

thanks.

Re: How to scroll CListView down ?

jmkhael21-Apr-04 0:06

jmkhael

21-Apr-04 0:06

Check the Scrolling Functions of CWnd

GetScrollPos Retrieves the current position of a scroll box.
GetScrollRange Copies the current minimum and maximum scroll-bar positions for the given scroll bar.
ScrollWindow Scrolls the contents of the client area.
ScrollWindowEx Scrolls the contents of the client area. Similar to ScrollWindow, with additional features.
GetScrollLimit Retrieves the limit of the scroll bar.
SetScrollPos Sets the current position of a scroll box and, if specified, redraws the scroll bar to reflect the new position.

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

audio file proprties

viliam20-Apr-04 23:08

viliam

20-Apr-04 23:08

I would like to retrieve audio file properties.
such as sample-rate and so on.
Does enyone know some library or easy way how
to do it.
Not only WAV but for example how to retrieve
this information from MP3 file.
I don't need to play it I just need to know
their properties.

Thanx for any help

viliam

IME caret - asian systems

Roger Alsing20-Apr-04 23:06

Roger Alsing

20-Apr-04 23:06

Hi,
Im having trouble adding IME support to my component.

Im having trouble with both the IME-caret location and the apperance of it.

http://www.compona.com/crm/pages/EditMessagePage.ascx?ID=95[^]

Does anyone know how to set the ime caret style to the same style as shown on the notepad shot?

and does anyone have any clue why the caret is shown at the top left corner the first time it appears?
(i am setting the caret location everytime my normal caret moves in the control)

//Roger

hide cursor

kaldoklv20-Apr-04 23:01

kaldoklv

20-Apr-04 23:01

How to hide cursor for a while?

Kaldoklv

Re: hide cursor

Balkrishna Talele21-Apr-04 0:02

Balkrishna Talele

21-Apr-04 0:02

int ShowCursor(
BOOL bShow // cursor visibility
);

bShow=FALSE

Word 2003

V.20-Apr-04 22:47

20-Apr-04 22:47

Hi,

I'm working on a project which calls a Word instance in a view in the program (the programmer who made it used smartpointers). This works fine for Office 97 -> Xp, but it DOESN'T work with Office 2003(sometimes it does, mostly it doesn't). My colleagues and I cannot find the problem.
Does anyone know what may be the problem? How do we solve it?
Re-writing the complete code is not really an option.

extra info: when terminating the program I get an acces violation error. The contents of the address called in the assembly is empty.

tnx for your help!!

Re: Word 2003

RichardGrimmer21-Apr-04 2:45

RichardGrimmer

21-Apr-04 2:45

Can't really help, but that sounds like exactly the sort of thing I need to do for a current app - can you give me any pointers as to how you've acheved it? Pretty Please???

"Now I guess I'll sit back and watch people misinterpret what I just said......"
Christian Graus At The Soapbox

Re: Word 2003

21-Apr-04 3:15

I cannot explain how you use smartpointers as I don't understand them really well myself.
However there is a second way for automation.
You have to "import" the library stuff from office itself. (for word 2003 it's the MSWORD.OLB file) These contain all the functions available for working with Word. (cfg Excel, Acces, ...) If you succesfully imported them you can make Objects of the the Word application and use them as any other Object. (see msdn for more info)
You have to read a lot of that stuff to understand it all. There are also examples on msdn.
(btw I found my error, if you get the same, try pressing ALT-F5)

there is also an object model file called VBAOF11.CHM (again office 2003) in your office. Here you can find additional info.

hope it's helpfull (but to explain it all it's just TOO much)

Re: Word 2003

Steve S22-Apr-04 1:51

Steve S

22-Apr-04 1:51

You should ask me, I can get you answers wholesale, with reduced delivery costs...

If you drop me an email to my hotmail account, with a rough outline, I'll send you back a (hopefully useful) set of instructions/hints.

Steve S

Re: RECT functions

Balkrishna Talele20-Apr-04 22:43

Balkrishna Talele

20-Apr-04 22:43

use RECT

Re: RECT functions

jmkhael20-Apr-04 22:44

jmkhael

20-Apr-04 22:44

Read the posts?

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: RECT functions

Balkrishna Talele20-Apr-04 22:50

Balkrishna Talele

20-Apr-04 22:50

sorry

Re: RECT functions

jmkhael20-Apr-04 22:52

jmkhael

20-Apr-04 22:52

Nevermind dude Wink | ;)

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

how do I determine what apps exist on my machine?

wxl5120-Apr-04 22:28

wxl51

20-Apr-04 22:28

I'm looking for a function that gives me a list similar to what I get from Add/Remove Programs.

WinXP; any help greatly appreciated.

Re: how do I determine what apps exist on my machine?

GermanGeorge20-Apr-04 22:45

GermanGeorge

20-Apr-04 22:45

char textds[250];
CWnd *DT = GetDesktopWindow();
CWnd *NW=DT->GetTopWindow();
for(;;)
{
NW=NW->GetNextWindow();
if(NW==NULL) break;
NW->GetWindowText(textds,sizeof(textds));
//here you have a pointer to the window
}

Re: how do I determine what apps exist on my machine?

Rob Caldecott21-Apr-04 2:13

Rob Caldecott

21-Apr-04 2:13

I am going to add a small article on how to do this, but the following code fills an MFC CStringList with the installed programs:

<br />
#define	AUDIT_KEY	_T("Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall")<br />
#define	AUDIT_KEY_LEN	256<br />
#define AUDIT_DISPLAY	_T("DisplayName")<br />
<br />
// Build a list of installed applications by enumerating<br />
	//	HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall<br />
	//	and fetching "DisplayName" entry<br />
<br />
	HKEY hKey;<br />
	if (::RegOpenKeyEx(HKEY_LOCAL_MACHINE, AUDIT_KEY, 0, KEY_READ, &hKey) != ERROR_SUCCESS)<br />
		return;<br />
<br />
	// List of strings<br />
	CStringList list;<br />
<br />
	DWORD dwIndex = 0;<br />
	LONG lRet;<br />
	DWORD cbName = AUDIT_KEY_LEN;<br />
	TCHAR szSubKeyName[AUDIT_KEY_LEN];<br />
	<br />
	while ((lRet = ::RegEnumKeyEx(hKey, dwIndex, szSubKeyName, &cbName, NULL,<br />
		NULL, NULL, NULL)) != ERROR_NO_MORE_ITEMS)<br />
	{<br />
		// Do we have a key to open?<br />
		if (lRet == ERROR_SUCCESS)<br />
		{<br />
			// Open the key and get the value<br />
			HKEY hItem;<br />
			if (::RegOpenKeyEx(hKey, szSubKeyName, 0, KEY_READ, &hItem) != ERROR_SUCCESS)<br />
				continue;<br />
			// Opened - look for "DisplayName"<br />
			TCHAR szDisplayName[AUDIT_KEY_LEN];<br />
			DWORD dwSize = sizeof(szDisplayName);<br />
			DWORD dwType;<br />
<br />
			if (::RegQueryValueEx(hItem, AUDIT_DISPLAY, NULL, &dwType,<br />
				(LPBYTE)&szDisplayName, &dwSize) == ERROR_SUCCESS)<br />
			{<br />
				// Add to the list<br />
				list.AddTail(szDisplayName);<br />
			}<br />
			::RegCloseKey(hItem);<br />
		}<br />
		dwIndex++;<br />
		cbName = AUDIT_KEY_LEN;<br />
	}<br />
	::RegCloseKey(hKey);<br />

The Rob Blog

RECT functions

El'Cachubrey20-Apr-04 22:25

El'Cachubrey

20-Apr-04 22:25

Hi all.

Whether exit simple function like WIDTH(RECT rc) in standard VC libraries ???? I.e functions what accomplish
an plain operations with RECT structure ,get width ,get height.This not hard to write any makros for this aim but i just want think.

Thaks.

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