How to use internal command of command prompt without typing it - C / C++ / MFC Discussion Boards

Re: when use a button on dialog, i get trouble

Cedric Moonen25-Apr-06 22:09

25-Apr-06 22:09

And what happens if you press the second button without pressing the first button before ?
That is not logical that OnBtn1Click gets called only when the button1 is in another state. Are you absolutely sure that OnBtn1Click gets called (did you use your debugger to check if it was inside this function) ? Alos an easy way to check is to display two different message boxes in each of the handler.

Re: when use a button on dialog, i get trouble

samfromcn25-Apr-06 22:29

samfromcn

25-Apr-06 22:29

I write this code in OnBtn1Click():
TRACE(".......state is %x........\n", m_btn1.GetState());

when I click the other buttons, if m_btn1 highlights, debugger will types".......state is 8........". And I just find, need not click the other buttons, if I switch to other application window, while m_btn1 highlights, debugger will type same message also.

It's strange. Confused | :confused:

Re: when use a button on dialog, i get trouble

Cedric Moonen25-Apr-06 22:34

Cedric Moonen

25-Apr-06 22:34

Post the code of the message map of your dialog class (the part that starts with BEGIN_MESSAGE_MAP(CYourDialog, CDialog) and finishes with END_MESSAGE_MAP()

Post also the code for the OnBtn2Click handler function

Re: when use a button on dialog, i get trouble

samfromcn25-Apr-06 22:47

samfromcn

25-Apr-06 22:47

BEGIN_MESSAGE_MAP(CMyDialog, CDialog)
ON_BN_CLICKED(IDC_BTN1, OnBtn1Click)
END_MESSAGE_MAP()

There is no code for m_btn2

I find something new, I am sure it because focus, when m_btn1 lost focus, if it hightlights, OnBtn1Click() is called. But I don't konw how to prevent it.

My code is very simple, you may create a dialog application and put 2 buttons on dialog, I think you will find the same thing.;)

Re: when use a button on dialog, i get trouble

David Crow26-Apr-06 3:08

David Crow

26-Apr-06 3:08

What does the project's resource.h file look like? When was the last time you did a rebuild-all?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"We will be known forever by the tracks we leave." - Native American Proverb

Re: when use a button on dialog, i get trouble

Ryan Binns26-Apr-06 2:26

Ryan Binns

26-Apr-06 2:26

Why are you calling m_btn1.SetState()? If you're wanting a button that is alternately on and off, use a checkbox with the push button style. Windows will then take care of the button state automatically.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

Re: when use a button on dialog, i get trouble

samfromcn26-Apr-06 17:41

samfromcn

26-Apr-06 17:41

sorry my friends, I use a checkbox now, but same thing happens again.

Q:when the checkbox lost focus, if it's on state, it will become off state. while I want it to keep its on state until I press it again.

help me! Frown | :(

How to use internal command of command prompt without typing it

kflrei25-Apr-06 22:02

kflrei

25-Apr-06 22:02

Hi,I have some trouble!Please help me!
When I run command promt(cmd.exe),I can open a text file by typing,example : C:\>type Text.txt
Then, it will open the Text.txt in that command prompt window!
How can I do that in MFC Application!Example,When I press a button,it'll open command prompt!And then,the command prompt will automatic open the specified Text file!

Please,Help me!!!

Re: How to use internal command of command prompt without typing it

Nibu babu thomas25-Apr-06 22:19

Nibu babu thomas

25-Apr-06 22:19

Use ShellExecute to start the command prompt.

Pass the command as a command line argument to the command prompt with the switch /k turned on.

for eg:

cmd /k type help.txt
or
cmd /k dir

Nibu thomas
Software Developer

Re: How to use internal command of command prompt without typing it

kflrei27-Apr-06 0:17

kflrei

27-Apr-06 0:17

Ok!I got it!
Thank A lot !!!

Recording the audio from the devices

atimpoo25-Apr-06 21:22

atimpoo

25-Apr-06 21:22

Hi All,

Can anyone suggest me a way to record audio lively from microphone using DirectShow?

Thanks,
Poornima

Re: Recording the audio from the devices

normanS26-Apr-06 2:46

normanS

26-Apr-06 2:46

Have a look at the audio examples on CodeProject. http://www.codeproject.com/audio/[^]

MDI

Smith#25-Apr-06 21:17

Smith#

25-Apr-06 21:17

I've been trying to learn a bit of MDI , but I'm failing everytime. Anybody has links where I can learn MDI with a simple Example? I want to learn SDI with Multiple views too. Any help?

NULL

Re: MDI

Nibu babu thomas25-Apr-06 21:48

Nibu babu thomas

25-Apr-06 21:48

Search CP with the keyword MDI and see what happens. Smile | :)

Nibu thomas
Software Developer

Re: MDI

Smith#26-Apr-06 0:29

Smith#

26-Apr-06 0:29

Really poor response for the 'MDI' search . Did you search ? I actually needed a SIMPLE MFC MDI application.

NULL

Re: MDI

Iain Clarke, Warrior Programmer25-Apr-06 22:05

Iain Clarke, Warrior Programmer

25-Apr-06 22:05

I'm sure the help file (MSDN) for VC++ 6 had a tutorial called Scribble that walked you through creating a MDI paint-like application.

I just did a quick search, and found it on the msdn website...

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vctutor98/html/_gs_scribble_tutorial.asp[^]

Enjoy,

Iain.

Re: MDI

Smith#26-Apr-06 0:37

Smith#

26-Apr-06 0:37

Seriously I hate DOC/VIEW, MDI stuff Eek! | :eek:

NULL

Re: MDI

David Crow26-Apr-06 3:13

David Crow

26-Apr-06 3:13

http://www.developer.com/net/cplus/article.php/629961[^]

http://msdn2.microsoft.com/en-US/library/b2kye6c4(VS.80).aspx[^]

http://www.codeproject.com/shell/mfcstartup.asp[^]

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"We will be known forever by the tracks we leave." - Native American Proverb

Re: MDI

Smith#26-Apr-06 3:24

Smith#

26-Apr-06 3:24

Thanks.

NULL

Re: MDI

Smith#26-Apr-06 3:32

Smith#

26-Apr-06 3:32

The link which is at the top, (developer.com) is excellent, and down to earth. Really superb , but it would have been better if he had continued deeper. Anyway it gave me a good basic idea about MDIs. Thanks again.

NULL

Problem in Buid

rajeevktripathi25-Apr-06 21:12

rajeevktripathi

25-Apr-06 21:12

Hi
I tried to make a Native application with the help of following links:
http://www.codeproject.com/system/idd.asp AND
http://www.sysinternals.com/Information/NativeApplications.html

Here did settings and include library files for DDK.
and compile the program and compiled successfully, but when build the program it gives following error

Linking...<br />
LINK : error LNK2001: unresolved external symbol _DriverEntry@8<br />
hello.obj : error LNK2001: unresolved external symbol _NtTerminateProcess@8<br />
hello.obj : error LNK2001: unresolved external symbol _NtDisplayString@4<br />
Release/hello.exe : fatal error LNK1120: 3 unresolved externals<br />
Error executing link.exe.<br />
<br />
hello.exe - 4 error(s), 0 warning(s)<br />

So Please tell me that how to remove these errors.
Thanks

Re: Problem in Buid

Nibu babu thomas25-Apr-06 21:21

Nibu babu thomas

25-Apr-06 21:21

Have you linked to the necessary libraries?

Nibu thomas
Software Developer

Re: Problem in Buid

rajeevktripathi25-Apr-06 21:24

rajeevktripathi

25-Apr-06 21:24