Re: Keyboard Monitoring - C / C++ / MFC Discussion Boards

CFileDialog problem, lock and not return !

jslee5-Dec-02 15:02

5-Dec-02 15:02

Hi
CFileDialog problem under win 2000 !!

select 'my document' then the dialogbox lock, didn't work ! only killed by task manager. also 'GetSaveFileName' either.

I'm afraid this is an MFC bug !
below is my sample code, check it !

CFileDialogEx *pDlg = new CFileDialogEx(FALSE,
_T("jpg"),
NULL,
OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT,
_T("JPG Files(*.jpg)|*.jpg|BMP Files (*.bmp)|*.bmp|AVI Files(*.avi)|*.avi|All Files(*.*)|*.*||"),
NULL);

long nRet = pDlg->DoModal(); // <-- here, don't return when select 'my document'.

delete pDlg;

Re: CFileDialog problem, lock and not return !

Nitron6-Dec-02 13:55

Nitron

6-Dec-02 13:55

I'm not familiar with CFileDialogEx, but I would try CFileDialog first. It takes the same args, and it doesn't seem that you need the Ex version. Everything looks right. Confused | :confused:

- Nitron

"Those that say a task is impossible shouldn't interrupt the ones who are doing it." - Chinese Proverb

MSVC Multi Build/Use Configs

Garth J Lancaster5-Dec-02 14:04

Garth J Lancaster

5-Dec-02 14:04

hi - Ive read 'The Ultimate (DLL) Header File' by Joseph M. Newcomer, & 'DLL Tips' by xicoloko ..

Does anyone else have notes on :-

A) Building a dll (and libs where required)for

Static -> Release/Debug &
Dynamic -> Release/Debug

Configs and then

B) Defining A Header File For The Seperate 'Use' Program That Utilises the matching lib/dll automatically - Ive seen a pre-built system that seems to use the MSVC Project Settings, which is ok by me (I must be missing how it works though)

any other/more pointers/references would be appreciated

Garth

CRichEdit with embedded .rtf?

paposo5-Dec-02 13:07

paposo

5-Dec-02 13:07

I'm sorta nooby so have patience. I have written a .dll for a modeling program. The .dll basically brings up a dialog. On the dialog I have a help button which brings up a dialog with a CRichEditCntrl. I have it so that when you pressed the help button a OpenFileDialog pops up and asks for the .rtf file - then it loads it in. What I really want however is to have the .rtf imbedded. Normally I would use an CEditView but I'm using a .dll and the help stuff is not an option. I don't really need the whole enchilada help files just some .rtf format text in the CRichEdit window. Hmm... I sure this has to be simple. Can't you use the EDITSTREAM structure to load an .rtf file that has a resource ID or such? Confused | :confused:

I have code similar to what is under the RichText section and trying to do something similar with the dialog but don't want to have to load up a file:

Code for Rich Edit

Re: CRichEdit with embedded .rtf?

Nitron6-Dec-02 13:51

Nitron

6-Dec-02 13:51

Sorry I don't know exactly, but check this [^]out, I'm sure it will help!

Good luck!

- Nitron

"Those that say a task is impossible shouldn't interrupt the ones who are doing it." - Chinese Proverb

Re: CRichEdit with embedded .rtf?

Anonymous7-Dec-02 4:52

Anonymous

7-Dec-02 4:52

I got it figured out (sorta). It's not really an imbedded .rtf but It works for what I want it too.

//This all creates the info window. The CRichEdit is dynamicall created based
//on the placement of the group frame.
WINDOWPLACEMENT lpwndpl;

// We use the frame to locate our RTF control:
m_RichFrame.GetWindowPlacement(&lpwndpl);
m_RichText.Create(
WS_CHILD | WS_VISIBLE | WS_BORDER | WS_VSCROLL|
ES_AUTOVSCROLL |
ES_MULTILINE | ES_WANTRETURN | ES_READONLY,
lpwndpl.rcNormalPosition, this, IDC_RICHFRAME);

//A default character format
CHARFORMAT cfm_default;
cfm_default.cbSize = sizeof(cfm_default);
cfm_default.dwMask = CFM_FACE|CFM_SIZE|CFM_BOLD|CFM_ITALIC|CFM_COLOR;
cfm_default.dwEffects = CFE_BOLD;
cfm_default.crTextColor = RGB(0,0,0);
_tcscpy(cfm_default.szFaceName,_T("Arial"));
cfm_default.yHeight = 200; //in twips

//set the default formatting
m_RichText.SetDefaultCharFormat(cfm_default);
m_RichText.SetBackgroundColor(FALSE,RGB(116,92,184));

//a new char format
CHARFORMAT cfm;
cfm.cbSize = sizeof(cfm);
cfm.dwMask = CFM_FACE|CFM_SIZE|CFM_BOLD|CFM_ITALIC|CFM_COLOR;
cfm.dwEffects = CFE_BOLD;
cfm.crTextColor = RGB(193,201,62);
_tcscpy(cfm.szFaceName,_T("Arial"));
cfm.yHeight = 300; //in twips

//set the temporary format
m_RichText.SetSelectionCharFormat(cfm);

//used for text placement
int totalLength = 0;

//string 1
CString Text1;
Text1.Format("blah blah/n/n");
int len_Text1 = Text1.GetLength();
totalLength += len_Text1;

//add text
m_RichText.ReplaceSel(Text1);

//get last space after text
CHARRANGE crInsertSel2;
crInsertSel2.cpMin = totalLength;
crInsertSel2.cpMax = totalLength;

//select the space
m_RichText.SetSel(crInsertSel2);

//string 2
CString Text2;
Text2.Format("blah blah/n/n");
int len_Text2 = Text2.GetLength();
totalLength += len_Text2;

//add text
m_RichText.ReplaceSel(Text2);

//you get the idea.......
CHARRANGE crInsertSel3;
crInsertSel3.cpMin = totalLength;
crInsertSel3.cpMax = totalLength;

This just selects the last space, formats the selection and inserts new text there...
No .rtf but It works

Keyboard Monitoring

Don Grout5-Dec-02 12:01

Don Grout

5-Dec-02 12:01

Does anyone have some sample code for monitoring all keyboard presses? My program needs to watch ALL keyboard input while it is minimized regardless of what application is currently active.

Even if you don't have code, any ideas on how to do it?

Thanks for your help.....

Don Grout

Re: Keyboard Monitoring

Paul M Watt5-Dec-02 12:35

Paul M Watt

5-Dec-02 12:35

you can either use a global Keyboard hook, or you can use DirectInput from DirectX to hook into the keyboard presses.

Here is an article that has the hook mehtod shown, and there is some discussion in the comments about the DirectX method:

http://www.codeproject.com/dll/trackuseridle.asp#xx321060xx[^]

Good Luck

Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!

Re: Keyboard Monitoring

Don Grout5-Dec-02 19:42

Don Grout

5-Dec-02 19:42

Thanks for the link. Big Grin | :-D

It led me to the article on KeyBoard Hooks which is more useful.

http://www.codeproject.com/dll/keyboardhook.asp

Don

Connecting to internet

S O S5-Dec-02 10:05

S O S

5-Dec-02 10:05

How can I activate the default(or first, doesn't matter) dial-up connection?

Re: Connecting to internet

User 66585-Dec-02 10:09

User 6658

5-Dec-02 10:09

Check out these articles

regards

modified 12-Sep-18 21:01pm.

Re: Connecting to internet

S O S5-Dec-02 10:38

S O S

5-Dec-02 10:38

Thank you!
I strangely keep forgetting that there is a search function on this page :p
Maybe because I mostly deal with programming at late night... hmm

Paint problem

Brigg Thorp5-Dec-02 10:05

Brigg Thorp

5-Dec-02 10:05

I have an animation control on a dialog along with a progress control, similar to the Windows Explorer progress dialog during a copy operation.

In my WM_INITDIALOG handler, I load an AVI from the resource and start playing it immediately. I also set a timer for 20 ms and call a USB communications routine every 20 ms thereafter. The problem is, the AVI sometimes doesn't display right away. I tried calling SendDlgItemMessage with WM_PAINT to the Animation control in my WM_TIMER event handler, and that helped a little bit. Anyone have any suggestions?

Brigg Thorp
Software Engineer
Timex Corporation

Re: Paint problem

Paul M Watt5-Dec-02 10:15

Paul M Watt

5-Dec-02 10:15

You shouldnt send WM_PAINT messages because they are not generally handled in the message queue like a regular message.

A better method would be to call a function like UpdateWindow or RedrawWindow with the RDW_UPDATENOW flag set. These will force a repaint and implicitly send a WM_PAINT message to your animation control.

Good Luck

Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!

Re: Paint problem

Brigg Thorp6-Dec-02 2:06

Brigg Thorp

6-Dec-02 2:06

OK. I changed the code to call UpdateWindow after I load the animation control, after I start playing the animation (both handled in WM_INITDIALOG) and also every entrance into my WM_TIMER handler (every 20 ms). This seems to help, however there are still some rare occasions when the dialog starts communicating with the USB device, the progress control is drawn correctly, but the AVI is not loaded. Can you offer any suggestions on how I can gaurantee that the AVI file is loaded and frame 1 is drawn before I begin processing?

Regards,

Brigg Thorp
Software Engineer
Timex Corporation

Re: Paint problem

Paul M Watt6-Dec-02 6:25

Paul M Watt

6-Dec-02 6:25

try the ::Animate_Open function inside of your OnInitDialog handler. It will open the avi file and display the first frame. This function is synchronous so that your application will block until the first frame is displayed.

If you do it this way, I beleive that the call to UpdateWindow will be unecessary.

Good Luck.

Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!

Re: Paint problem

Brigg Thorp6-Dec-02 7:35

Brigg Thorp

6-Dec-02 7:35

in my WM_INITDIALOG handler, I call this function:

<br />
HWND CreateAnimationCtrl(HWND hwndDlg, int nIDCtl) <br />
{ <br />
    HWND hwndAnim = NULL; <br />
    RECT rc; <br />
    POINT pt; <br />
	<br />
    // Create the animation control. <br />
    hwndAnim = Animate_Create(hwndDlg, IDC_ANIMATE, WS_CHILD | ACS_TRANSPARENT, ghInst); <br />
	<br />
    // Get the screen coordinates of the specified control button. <br />
    GetWindowRect(GetDlgItem(hwndDlg, nIDCtl), &rc); <br />
	<br />
    // Convert the coordinates of the lower-left corner to <br />
    // client coordinates. <br />
    pt.x = rc.left; <br />
    pt.y = rc.top;<br />
    ScreenToClient(hwndDlg, &pt); <br />
<br />
	// Position the animation control below the Stop button. <br />
	SetWindowPos(hwndAnim, 0, pt.x, pt.y,  <br />
		149, 25, <br />
		SWP_NOZORDER | SWP_DRAWFRAME); <br />
<br />
    Animate_Open(hwndAnim, MAKEINTRESOURCE(IDR_AVI)); <br />
    ShowWindow(hwndAnim, SW_SHOW); <br />
	//RedrawWindow(hwndDlg, NULL, NULL, RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW | RDW_ALLCHILDREN);<br />
	RedrawWindow(hwndAnim, NULL, NULL, RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW | RDW_ALLCHILDREN);<br />
<br />
    return hwndAnim; <br />
} <br />

If the call is synchronous, then I would expect that this would be completed before my timer event fires. So it must be something with the control itself.

Brigg Thorp
Software Engineer
Timex Corporation

R6017 Unexpected Multi-Thread Lock

parnelltk5-Dec-02 9:59

parnelltk

5-Dec-02 9:59

I am looking for some insight. I have received the message:
"Visual C++ Runtime Error C:\WinNT\explorer.exe
R6017 Unexpected Multi-Thread Lock"

on several occasions from the Windows Explorer in Win2K SP3.

I have not found any information on the R6017 message.
Are there Visual C++ libraries installed on my system that are causing the problem? Or does this message refer to libraries that were linked in my build on Windows Explorer?

My explorer.exe file is dated 7/22/2002, size of 238 KB, and Product Version number is listed as: 5.00.3502.5321.

Any suggestions for what I should be chasing?

Thanks,
Kim

Re: R6017 Unexpected Multi-Thread Lock

PJ Arends5-Dec-02 11:11

PJ Arends

5-Dec-02 11:11

From MSDN[^]:
<quote>
C Run-Time Error R6017
unexpected multithread lock error

The process received an unexpected error while trying to access a C run-time multithread lock on a system resource.

This error usually occurs if the process inadvertently alters the run-time heap data. However, it can also be caused by an internal error in the run-time or operating-system code.
</quote>

Maybe this helps?

CPUA 0x5041

Sonork 100.11743 Chicken Little

"So it can now be written in stone as a testament to humanities achievments "PJ did Pi at CP"." Colin Davies

Within you lies the power for good - Use it!

Re: R6017 Unexpected Multi-Thread Lock

parnelltk5-Dec-02 11:56

parnelltk

5-Dec-02 11:56

Thanks for the additional information. What would you suggest in terms of trying to fix or avoid the problem?

Kim

Re: R6017 Unexpected Multi-Thread Lock

PJ Arends5-Dec-02 15:42

PJ Arends

5-Dec-02 15:42

The only thing I can think of, if this becomes a major problem, is to re-install windows. Not an ideal solution I know, but sometimes that is what it takes.

keeping iterator in position

Member 1043935-Dec-02 9:52

Member 104393

5-Dec-02 9:52

I have a class that I call from various functions, and I want to have the iterator not return to the beginning each time it starts. For example, function 1 reads in the first two vector strings. The instance of the class is then passed to another function. When it reads the next function, I want it to read the third vector string. The following does not do that. The iterator starts at the beginning of the vector in each function. Is there a way to do this?

class InputFile
{
private:
vector <std::string> theVector;
vector<std::string>::iterator pr;

public :
// InputFile();
// InputFile(std::vector<std::string> & trs);
// string getNextLine();

InputFile( std::vector<std::string> & trs )
{
theVector.resize(trs.size());
copy(trs.begin(), trs.end(), theVector.begin());
pr = theVector.begin();
}

int size( void)
{
return theVector.size();
}

string getCurrentLine( void )
{
string s;
s = *pr;
return s;
}

string getNextLine( void )
{
string s;
pr++;
s = *pr;
return s;
}
};

Thanks.

Need HELP! MSXML!

Daniel Strigl5-Dec-02 9:48

Daniel Strigl

5-Dec-02 9:48

Is there anyone who has a sample to use the MSXML DOM
parser in a MFC application for eVC++ 3.0 on PocketPC 2002?

I have tried the last 3 days to create a sample
application ... but nothing Frown | :-(

... so please ... I would
need a sample!

(If possible I want to use SMART POINTERS and the _bstr_t
and _variant_t classes, but I welcome all other samples I
can learn from.)

PS: Sorry for my bad english!

Thanks!

Daniel Wink | ;)

---------------------------
Never change a running system!

CWinThread Question...

RobJones5-Dec-02 9:42

RobJones

5-Dec-02 9:42

Hello,
I was wondering if there is anyway to create some type of timer inside a CWinThread? I would like to spawn a thread and if the timer reaches a high enough number it would tell the thread to quit..

I played around with OnIdle but it seems to only get called once..

Any ideas?
Rob

Re: CWinThread Question...

Dave Bryant5-Dec-02 11:06

Dave Bryant

5-Dec-02 11:06

OnIdle() gets called until the return value tells the framework not to call it anymore.

Anyway, you can create a timer using the API function SetTimer(), passing the HWND parameter as NULL so that the timer message is then sent to the thread instead of a window. You can then pick up the WM_TIMER message in the PreTranslateMessage() method of the CWinThread derived class.

e.g.

BOOL CThread::InitInstance()
{
// Every second
m_nID = ::SetTimer( NULL, 0, 1000, NULL );
ASSERT( m_nID != 0 );

return TRUE;
}

BOOL CThread::PreTranslateMessage(MSG* pMsg)
{
if ( WM_TIMER == pMsg->message && m_nID == pMsg->wParam )
{
::KillTimer( m_nID );
PostQuitMessage( 0 ); // Kill the thread
return TRUE; // We have finished processing this message
}

return CWinThread::PreTranslateMessage( pMsg );
}

Dave

Last Visit: 31-Dec-99 18:00 Last Update: 24-Sep-24 2:26

Refresh

ᐊ Prev 1...15737 15738 15739 157401574115742 15743 15744 15745 15746 Next ᐅ

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