avoiding error messageboxes - C / C++ / MFC Discussion Boards

Re: Floating menu??

basementman28-May-03 8:01

basementman

28-May-03 8:01

see TrackPopupMenu in the documentation

Re: Floating menu??

Joan M28-May-03 21:15

Joan M

28-May-03 21:15

take a look at the CButtonST here in CP... it has a function that allows you to do it easily...

http://www.codeproject.com/buttonctrl/cbuttonst.asp[^]

hope this helps...

how to resize an application depending on the display settings

johnstonsk28-May-03 7:44

johnstonsk

28-May-03 7:44

I have been working on an application that displays data in various labels and textfields.

How can I size the application to the correct dimensions video card settings (display settings)?

thanks,
sj

Re: how to resize an application depending on the display settings

basementman28-May-03 8:05

basementman

28-May-03 8:05

Call GetSystemMetrics with the following:
SM_CXSCREEN,
SM_CYSCREEN

Window wont come to the top

SAK28-May-03 6:08

SAK

28-May-03 6:08

I am writing an application that upon the user pressing a funciton key the applicaiton is dispalyed. Even if the user is using another program and this key is pressed.

I have tried using the following functions but if I have notepad(or other app) maximized and press the button my appication does not come to top.

ShowWindow
BringWindowToTop
SetWindowPos

I have confirmed the hot key is being recognized by poping up a dialog box when it is pressed. I have confirmed the correct handle by using SetWindowPos to move the window. Is there another approach/function I should be using

Thank you,

SAK

Re: Window wont come to the top

valikac28-May-03 18:23

valikac

28-May-03 18:23

One solution is ShowWindow().

ShowWindow(SW_RESTORE);

Kuphryn

Scrollbar control problems

S van Leent28-May-03 6:08

S van Leent

28-May-03 6:08

I've made a horizontal scrollbar control using CreateWindowEx, and on the WM_HSCROLL event in the parent window I do this:

	if (flag == SB_LEFT)<br />
	{<br />
		curPos -= 1;<br />
	}<br />
<br />
	else if (flag == SB_RIGHT)<br />
	{<br />
		curPos += 1;<br />
	}<br />
<br />
	else if (flag == SB_LINELEFT || flag == SB_PAGELEFT)<br />
	{<br />
		curPos -= 1;<br />
	}<br />
<br />
	else if (flag == SB_LINERIGHT || flag == SB_PAGERIGHT)<br />
	{<br />
		curPos += 1;<br />
	}<br />
<br />
	else if (flag == SB_THUMBTRACK || flag == SB_THUMBPOSITION)<br />
	{<br />
		curPos = position;<br />
	}

Then using SetScrollPos(hWndScroll, SB_CTL, curPos, TRUE) I try to let the scrollbar be updated, but it doesn't seem to work. any ideas?

LPCTSTR Dutch = TEXT("Double Dutch Smile | :)

");

avoiding error messageboxes

marco p28-May-03 5:53

marco p

28-May-03 5:53

Hi.
I have a faulty app that I should restart whenever it crashes.
I can easily see when it's dead, since it creates a named mutex that disappear with the app.

My problem is that if the app crashes and shows a MessageBox
as this example:

The instruction at "0x004015b0" referenced memory at "0x00000000". The memory could not be "written".

Click on OK to terminate the program
Click on CANCEL to debug the program

Is there any way to avoid this? I can't modify the darned app's source code.
thanks in advance,
bye
M.

Re: avoiding error messageboxes

Chris Richardson28-May-03 9:40

Chris Richardson

28-May-03 9:40

Run the process like it's being debugged (i.e. call CreateProcess with DEBUG_PROCESS), then handle the exception event in your debugger loop, and restart the program. It's really pretty easy to do and I point you to a simple example:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/debug/base/writing_the_debugger_s_main_loop.asp[^]

Chris Richardson
Terrain Software

Re: avoiding error messageboxes

marco p28-May-03 22:13

marco p

28-May-03 22:13

Thank you very much indeed, your answer is perfect for our needs.

marco

Mouse hook prevent mouse right button click event

Old Gun28-May-03 5:48

Old Gun

28-May-03 5:48

I have read many tutorial article here and now realized a mouse hook,Now I can get windows handle which mouse move over,but I don’t know how to get mouse right button click event.I want to prevent a special window's mouse right button click event,how I do?Please help me.

Get All Messages in System (like SPY)

Anonymous28-May-03 5:38

Anonymous

28-May-03 5:38

The subject says it all,
how can i receive all messages sent in system - like SPY does ?

Thank you very much!

Re: Get All Messages in System (like SPY)

David Crow28-May-03 6:37

David Crow

28-May-03 6:37

Try SetWindowsHookEx().

Re: Get All Messages in System (like SPY)

Anonymous28-May-03 10:52

Anonymous

28-May-03 10:52

Thank you, i'll take a look!

Taskbar icon

Gerard Lim28-May-03 5:24

Gerard Lim

28-May-03 5:24

Hi
I have created a Dialog based application using VC++ 6.0. I have set the main dialog to NOT have a title bar and system menu. Unfortunately, this also remove the icon in the Windows taskbar when the application is running. Is there a way I can get round this problem? My endusers demand that the icon be seen next to the application name in the taskbar.

Thanks in advance

Re: Taskbar icon

Chris Richardson28-May-03 7:45

Chris Richardson

28-May-03 7:45

I removed the title bar and system menu in a test app I just wrote (I did it in the resource editor), and the icon still appeared on the task bar. All I had to do extra was make sure I called SetWindowText on the dialog with some meaningful text so the taskbar button wasn't blank.

Confused | :confused:

Chris Richardson
Terrain Software

Re: Taskbar icon

Gerard Lim28-May-03 7:52

Gerard Lim

28-May-03 7:52

Thanks for your quick reply.

I already did the SetWindowText call. Unfortunately, the icon in the taskbar only shows the text, not the picture (icon?) next to it (like MS Word or Exchange etc.). It is documented to only show the text if I have remove the System Menu. That's why I am looking for a workaround. Also, while the icon may be seen when you run your application in MSVC, it will not show the picture in the icon on another PC.

Re: Taskbar icon

Chris Richardson28-May-03 7:59

Chris Richardson

28-May-03 7:59

Hmm, sounds pretty strange. What styles are you using on your dialog? Also, if it will show on your PC but not on another PC this sounds like some strange difference in behavior between the two operating system setups.

Chris Richardson
Terrain Software

Re: Taskbar icon

Michael Dunn28-May-03 16:00

Michael Dunn

28-May-03 16:00

Add the WS_EX_APPWINDOW extended style to the dialog.

--Mike--
Latest blog entry: *drool* (Alyson) [May 10]
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"You have Erica on the brain" - Jon Sagara to me

seraching for keywords in a CString

si_6928-May-03 5:04

si_69

28-May-03 5:04

Hi All

i have the following code which im using to find particualr
words within a string (m_tts_message), however the below
only works when there is only one string to search for, in this case its "truant", however i want it to search m_tts_message for several words not just one.

can ne1 help

thakns

si Confused | :confused:

char *pdest;
char str[] = "truant";
int result;
pdest = strstr( m_tts_message, str );
result = (int)(pdest - m_tts_message + 1);
if ( pdest != NULL )
AfxMessageBox("found");
else
AfxMessageBox("not found");

Re: seraching for keywords in a CString

jhwurmbach28-May-03 5:47

jhwurmbach

28-May-03 5:47

You said CString (which is a MFC and also a ATL classs) when instead you used char*. Confused | :confused:

With CString, it would look look somewhat like this:

CString m_tts_message("truantjflsdlflsdfjtruantjdsfölsdlkjfdlskflkjstruantkgökfkfksdöf");
CString str ("truant");
int found = 0;
int result = m_tts_message.Find(str, 0);    //find string, -1 on failure
while (result != -1)
{
    if (result>-1)      //did find
        found++;
    result = m_tts_message.Find(str, result+1);
};
if ( found>0 )
    AfxMessageBox("found");
else
   AfxMessageBox("not found");  }

My opinions may have changed, but not the fact that I am right.

Re: seraching for keywords in a CString

si_6928-May-03 5:55

si_69

28-May-03 5:55

hi, thanks for the reply

i think im confusing you,

if m_tts_message contains "your child is absent from school and is playing truant"

m_tts_message contains a message which schools will send to parents
of there child, however i need to restrict them from using certain words
or phrases theres about 20 different words which cannot be used

i need to scan that (m_tts_message) looking for any of the reseverd words or phrases; which cannot be used

so in the above case i would be looking for the words "truant" and "absent" to see if either of them can be found

so consider the problem with the reseverd words/phrases: truant| absent
not in school|not at school|truant|truanting|truancy

thanks is advance

si

Re: seraching for keywords in a CString

jhwurmbach28-May-03 6:05

jhwurmbach

28-May-03 6:05

si_69 wrote:
..need to restrict them from using certain words..

Such as f*beep*uck, cu*beep*nt and so on? Roll eyes | :rolleyes:

You could make a std::vector<std::string> of the list of forbidden words and use your algorithm size() times, keeping track of which word was found (and maybe where it was found).

My opinions may have changed, but not the fact that I am right.

Re: seraching for keywords in a CString

valikac28-May-03 5:49

valikac

28-May-03 5:49

Code looks okay. Post the code that does multiple searches.

Kuphryn

Re: seraching for keywords in a CString

Anonymous28-May-03 10:17

Anonymous

28-May-03 10:17

You need to do a seperate search for each word.

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