Re: No windows messages - C / C++ / MFC Discussion Boards

Re: is there anyway to move mouse to any point?

ugur_basak27-Jun-05 6:32

27-Jun-05 6:32

OK. for example when an edit box sends EN_MAXTEXT i want to show "max text" as a tooltip. I can show tooltip whenever i want, but i cant show it wherever i want.
it shows just where the mouse is over.

Re: is there anyway to move mouse to any point?

toxcct27-Jun-05 6:39

toxcct

27-Jun-05 6:39

forcing the move to be the place you want your tooltip to be is very irritating for the user...

if you cannot find how to display your tooltip where you want, then search again (or you're doing something wrong) !!

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

Re: is there anyway to move mouse to any point?

BlackDice27-Jun-05 6:42

BlackDice

27-Jun-05 6:42

if that's the case, I suggest subclassing the CToolTipCtrl class or creating your own class that just makes a generic label window, but with colors to make it mimic a tooltip

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BlackDice

Re: is there anyway to move mouse to any point?

Ravi Bhavnani27-Jun-05 6:45

Ravi Bhavnani

27-Jun-05 6:45

I think you'd have to subclass the edit control to alter this behavior. Perhaps there's a style you can set to disable the default tooltip? If so, you could handle the EN_MAXTEXT notification and display your custom tooltip at a specific location.

/ravi

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Re: is there anyway to move mouse to any point?

ugur_basak27-Jun-05 21:00

ugur_basak

27-Jun-05 21:00

As always the solution is thinking basicly Smile | :)

SendMessage(TTM_ADJUSTRECT, TRUE, (LPARAM)&rect);
SetWindowPos(this,(rect.left+rect.right)/2, rect.top-50,
0, 0,
SWP_NOSIZE|SWP_NOZORDER|SWP_NOACTIVATE);

Re: is there anyway to move mouse to any point?

Ravi Bhavnani28-Jun-05 1:29

Ravi Bhavnani

28-Jun-05 1:29

Splendid!

/ravi

My new year's resolution: 2048 x 1536
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ravib@ravib.com

No windows messages

bartvandiepen27-Jun-05 5:12

bartvandiepen

27-Jun-05 5:12

Hey guys,

I'm absolutely not a experienced programmer but i have a problem, i will be happy someone can help me.

I have a dialog class CSimulator with a number of timers:

//part of the XXXXX.h file ****************************************************
class CSimulator : public CDialog
{
DECLARE_DYNAMIC(CSimulator)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support

DECLARE_MESSAGE_MAP()
...
...
...
public:
virtual BOOL OnInitDialog();
void OnTimer(UINT nIDEvent);

//part of the XXXX.cpp file ****************************************************
IMPLEMENT_DYNAMIC(CSimulator , CDialog)

void CSimulator::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);

}

BEGIN_MESSAGE_MAP(CSimulator, CDialog)
ON_WM_TIMER()
...
...
END_MESSAGE_MAP()

void CSimulator::OnTimer(UINT nIDEvent)
{
...
...
...
CDialog::OnTimer(nIDEvent);
}

When i start the class CSimulator from another class (CWnd) with DoModal() everything is working fine and the function CSimulator::OnTimer(UINT nIDEvent) is called after setting a timer with SetTimer(IDTIMER,50,0);

But when i start the class CSimulator from another class (CWnd) with m_Simulator.Create(IDD_SIMULATION_DIALOG); (m_Simulator is the instance of class CSimulator)
i have a problem. In this situation i don't receive the ON_WM_TIMER message .

Note: At another situation i need the class CSimulator (CDialog) showed in a window, but in this situation i only need the algorithm of the class, only modeless

What i'm doing wrong? I search a lot, but don't see the problem, can anyone help me with a solution?
Thanks, Bart

Re: No windows messages

David Crow27-Jun-05 5:55

David Crow

27-Jun-05 5:55

You must be doing something wrong with your modeless dialog. This worked for me:

CMyDialog::CMyDialog( CWnd *pParent ) : CDialog( CMyDialog::IDD, pParent )
{
    Create(IDD);
}
 
BEGIN_MESSAGE_MAP(CMyDialog, CDialog)
    ON_WM_TIMER()
END_MESSAGE_MAP()
 
BOOL CMyDialog::OnInitDialog() 
{
    CDialog::OnInitDialog();
    SetTimer(1234, 50, 0);
    return TRUE;
}
 
void CMyDialog::OnTimer(UINT nIDEvent) 
{
    TRACE(_T("OnTimer()\n"));
    CDialog::OnTimer(nIDEvent);
}
...
CMyDialog *pDlg = new CMyDialog;
pDlg->ShowWindow(SW_SHOWNORMAL);

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

retrieving html from a website

Bralyan27-Jun-05 5:03

Bralyan

27-Jun-05 5:03

how do you get a websites source code? I need all the links (over 1500) and I will parse the data after I get the code, i am using a dialog based app and have a webbrowser I need to get the info from,
thanks

Re: retrieving html from a website

Frank K27-Jun-05 5:35

Frank K

27-Jun-05 5:35

Hi,

I understand, you have an application and want to get the HTML-sourcecode and parse them?
Take a look at this:
http://www.codeproject.com/miscctrl/simplebrowserformfc.asp

I think this is off-topic, but ...
To get a website and all links from this site use "Mozilla-FireFox" and the AddOn "downThemAll". Now you need only a "right-mouse-click" and change some options from "downThemAll" and the FireFox will save all website to your harddisk.
Mozilla
downThemAll

Re: retrieving html from a website

Ravi Bhavnani27-Jun-05 5:57

Ravi Bhavnani

27-Jun-05 5:57

This[^] may be what you're looking for.

/ravi

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Another thought

bugDanny27-Jun-05 5:02

bugDanny

27-Jun-05 5:02

I wrote a program that part of it involves closing other windows, but I run into some funny stuff if the window is minimized when I close it. Is there any way I can check to see if a window is minimized before closing it? I have the window handle.

Yesterday is history
Tomorrow's a mystery
Today is a gift
That's why they call it the present.

Danny

Re: Another thought

Blake Miller27-Jun-05 5:04

Blake Miller

27-Jun-05 5:04

IsIconic Function

The IsIconic function determines whether the specified window is minimized (iconic).

BOOL IsIconic(          HWND hWnd<br />
);

Re: Another thought

bugDanny27-Jun-05 8:16

bugDanny

27-Jun-05 8:16

Thanx!

Danny

Re: Another thought

ugur_basak27-Jun-05 5:06

ugur_basak

27-Jun-05 5:06

you can use CWnd::isIconic() this function. It return non zero it it is minimized, otherwise 0

Dialogs in Visual C++ -- Buttons

bugDanny27-Jun-05 4:43

bugDanny

27-Jun-05 4:43

When adding a new dialog resource, the OK button is automatically configured so that, when clicked, it will take you off the form and do whatever code you wrote in an if statement:

if(dialog.DoModal() == IDOK){}

I want to add another button, Restore Defaults, that will take me off the form like the OK button and I can make an else if statement such as:

int returned = dialog.DoModal();
if(returned == IDOK){}
else if(returned == ID_RESET_DEFAULTS){}

How do code this?

Danny

Re: Dialogs in Visual C++ -- Buttons

David Crow27-Jun-05 4:50

David Crow

27-Jun-05 4:50

In the handler for this "Restore Defaults" button, simply call EndDialog(ID_RESET_DEFAULTS).

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Dialogs in Visual C++ -- Buttons

bugDanny27-Jun-05 5:03

bugDanny

27-Jun-05 5:03

Thanx!!
(The book I was using to learn MFC must not be the greatest)

Danny

Re: Dialogs in Visual C++ -- Buttons

toxcct27-Jun-05 6:22

toxcct

27-Jun-05 6:22

maybe the cheapest ?!

or maybe you failed reading it Poke tongue | ;-P

;P

anyway, you found the right place for C++ questions though...

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

Com ports

act_x27-Jun-05 4:34

act_x

27-Jun-05 4:34

is there an API call to obtain the list of COM ports as listed by Device Manager .

Re: Com ports

TFrancis27-Jun-05 5:28

TFrancis

27-Jun-05 5:28

disclaimer: don't know how well MS supports this in all versions of Windows, so use at your own risk

The list of serial ports can be found in the registry at HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\SERIALCOMM

You can use RegEnumValue() to enumerate and create the list you need.

Re: Com ports

erkanina28-Jun-05 2:05

erkanina

28-Jun-05 2:05

use EnumPorts(...) API

Re: Com ports

Blake Miller28-Jun-05 4:23

Blake Miller

28-Jun-05 4:23

Cool

Given its description - The EnumPorts function enumerates the ports that are available for printing on a specified server. I don't think I EVER would have thought to use this to enumerate the serial communication ports.

Weird problem - UI related

Don Miguel27-Jun-05 4:29

Don Miguel

27-Jun-05 4:29

Needles to say, not a directly Visual C++ question, but a
weird one, clearly related to intimately Win32 API.

To make a long story short:
- I developed a desktop application, using MFC and having, among other controls a list control.
- During development ant testing, everything looked OK.
- As a must, when the application is installed on a real user machine, it must register itself in "run at startup applications" (Registry locale machine key), and start a dialog, where some data is displayed (loaded in the list control)

And now come the WEIRD thing: on one of the machines, used for testing, the application failed to instantiate... because the List control was not instantiate. In other words, the application UI started before common controls being available!!! Is such a thing possible???

Did anybody encounter such situation before? Does anybody heard about such a weird problem in his experience?? Did exist a remedy?? Of course, I did not take in consideration a hack, like a "sleep" in my application startup... what make me worry is the situation itself. What is particular on machine I experienced the situation is that at machine starup, a service start and took most of machine resources for a while. In this time, I was able to log on (a Windows 2000 machine), and my application started immediately, with the error.

Did anybody hear somethiing like that?? For me, it sounds like Windows OS is not able to fully load its UI libraries, before application start... and this is weird, could be such a flaw? This lead a door to serious problems in how UI is designed... I will search myself further, but I also want your feedback, if such situation was encountered by someone.

I mention of course that, if the apllication is started late enough, it work normally on that machine. So, I'm not intrested in advices, but just in situation I mentioned: is possible that UI resources, needed by a desktop application, don't be available, at a certain moment?? WTF | :WTF:

- is a windows system!!!!!!

Any information with such a issue is greatly apreciated.

I can reformulate the problem, to avoid false hints: when is user32.dll loaded by OS, during the boot process??

Regards.

Re: Weird problem - UI related

Daniel Turini27-Jun-05 4:46

Daniel Turini

27-Jun-05 4:46

Did you link MFC statically or dynamically? It looks like it could not find the MFC DLLs, but it's just a guess. Try the Dependency Walker tool to check your executable for runtime dependencies, and verify if the machine has all the appropriates DLLs, or link everything statically.

I see dead pixels
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