C / C++ / MFC Discussion Boards

Nelek29-Oct-07 21:11

29-Oct-07 21:11

And it is perfectly logical. But there are users that doesn't understand that our reward is a simple thank you when we helped, and I know that I am not as good as many other users, but I do my aportation as well when I can Wink | ;)

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

Help me to understand what I'm saying, and I'll explain it better to you

Wink | ;)

Re: combo box

Hamid_RT26-Oct-07 0:13

Hamid_RT

26-Oct-07 0:13

Of course its DlgDirListComboBox for combobox.;)

audio recording problem with mciExecute().

kadkir25-Oct-07 20:00

kadkir

25-Oct-07 20:00

I am developing a web application in that I need to record audio, for that I am importing "winmm.dll" and using mciExecute function.(the following code is vb.net). If I have posted in irrelavent forum please let me know where should I post questions related to audio and video (for web development).
<code>
Imports System.Runtime.InteropServices
Imports Microsoft.VisualBasic
Imports Microsoft.VisualBasic.Devices

Partial Class audioRec
Inherits System.Web.UI.Page
<DllImport("winmm.dll", EntryPoint:="mciExecute", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)> Private Shared Function mciExecute(ByVal lpstrCommand As String) As Boolean
End Function

Protected Sub BtnStart_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles BtnStart.Click

mciExecute("open new Type waveaudio Alias recsound1")
mciExecute("set recsound1 time format ms bitspersample 16 channels 1 samplespersec 11025")
mciExecute("record recsound1")

End Sub

Protected Sub BtnStop_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles BtnStop.Click
mciExecute("save recsound1 c:\\record.wav")
mciExecute("close recsound1 ")

Dim c As New Computer
c.Audio.Stop()
End Sub

Protected Sub BTNplay_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles BTNplay.Click
Dim computer As New Computer
computer.Audio.Play("c:\\record.wav", AudioPlayMode.Background)
End Sub
End Class
</code>
but when I am clicking the start button "the order in which you are passing parameters is invalid please correct the order" msg is getting displayed. I need to to record an audio file in "8khz, 16 bit, mono" format. How can I meet this requirement.

i will be thankful for ur suggestions..

with regards,
kiran

Re: audio recording problem with mciExecute().

Hamid_RT25-Oct-07 20:23

Hamid_RT

25-Oct-07 20:23

But are you sure you asked on the correct forum you must ask on the Visual Basic / VB.NET[^].

Application failed to start because .dll not found

ashishbhatt25-Oct-07 19:57

ashishbhatt

25-Oct-07 19:57

Hi All,

I have read many forum answers on this error but I could not found solution.

I am using MFC Application in VS 2005. I my application I have created one .dll file named VNCHooks.dll which is running before the my MFC solution .exe file. Now when I run it uising F5 I got tjhe error like below....

This application has failed to start because VNCHooks.dll was not found.Re-installing the application may fix this problem.

in the Messagebox.

I tried it to copy in C:\WINDOWS\system32 but it still gave me same error.Before some time it was working very nice but suddendly it got problem.

So, kindly reply if you got some solution or any suggetion.

Thanks in Advance.

Ashish Bhatt

Re: Application failed to start because .dll not found

Anu_Bala25-Oct-07 20:21

Anu_Bala

25-Oct-07 20:21

Hi,
Some days bfore i got the same problem.We are using third party dll.It was working fine.but one day it shows error.
I made this,then it works fien.Pls follow this
1)Type REGSVR32 VNCHooks.dll in ur Run Command and click OK.
It shows the message like DLLregisterServer succeeded.
THen it works fine.
Bye

Anu

Re: Application failed to start because .dll not found

ashishbhatt25-Oct-07 20:40

ashishbhatt

25-Oct-07 20:40

I have already tried what you are trying to say but I got message like below.....

LoadLibrary("VNCHooks.dll")failed- The specified module could not be found.

And also I tried it to put this dll into System32 folder but it stil gave me the same error.
Do you have any other suggetion? then give me.I will appreciate them.

Thanks.

Ashish Bhatt

Re: Application failed to start because .dll not found

Hamid_RT25-Oct-07 20:32

Hamid_RT

25-Oct-07 20:32

Regsvr32.exe is an application that used to register Dlls and activex controls,did you use of it?

Re: Application failed to start because .dll not found

ashishbhatt25-Oct-07 20:45

ashishbhatt

25-Oct-07 20:45

You can see my above post as I have posted.

if you any more suggetion then give me.

Thanks.

Ashish Bhatt

Re: Application failed to start because .dll not found

Hamid_RT25-Oct-07 20:51

Hamid_RT

25-Oct-07 20:51

If you used of Regsvr32.exe previous whats its message?

Re: Application failed to start because .dll not found

ashishbhatt25-Oct-07 20:56

ashishbhatt

25-Oct-07 20:56

LoadLibrary("VNCHooks.dll")failed- The specified module could not be found.

In messagebox.

Ashish Bhatt

Re: Application failed to start because .dll not found

Hamid_RT25-Oct-07 21:25

Hamid_RT

25-Oct-07 21:25

Windows searches for dlls in this folder
1. c:\windows
2. c:\Windows\system32
3. c:\Windows\system
4. App's current directory
5. App's startup directory

6. Path environment variable
sometimes you can see this error for one or more DLL's in many cases windows uses of Path environment variable to find additional dlls

Can you use of other OS for register your dll and see result

Re: Application failed to start because .dll not found

ashishbhatt25-Oct-07 21:41

ashishbhatt

25-Oct-07 21:41

ya I have searched this dll in all paths as u told.

And let me remind u that this is my application's dll so it is created in my debug folder when I compiled my project.And also I tried to put this dll in c:\windows\system32 then still I got same error.

thanks.

Ashish Bhatt

Re: Application failed to start because .dll not found

Hamid_RT25-Oct-07 22:02

Hamid_RT

25-Oct-07 22:02

Maybe your dll needs to load other dlls and it cant,can you check your dll on other OS?

Re: Application failed to start because .dll not found

Cedric Moonen25-Oct-07 21:34

Cedric Moonen

25-Oct-07 21:34

Copy the dll in the same folder than your application.

Cédric Moonen
Software developer

Charting control [v1.2]

Re: Application failed to start because .dll not found

ashishbhatt25-Oct-07 21:58

ashishbhatt

25-Oct-07 21:58

ya I have my dll in my same folder as my application

Ashish Bhatt

Re: Application failed to start because .dll not found

ashishbhatt25-Oct-07 22:02

ashishbhatt

25-Oct-07 22:02

By the way I got solution by removing that dll project and once again add it to workspace. At present it is working nice. If I will get some problem then I will contact you later.

But I realy want to know the reason why this happened for my knowledge point of view.

Thanks to All.

Ashish Bhatt

Re: Application failed to start because .dll not found

Cedric Moonen25-Oct-07 23:09

Cedric Moonen

25-Oct-07 23:09

You probably pasted your dll in the wrong directory. Remember, when you start your program from the IDE, the working directory is the one where your project file (.vcproj) is, not the folder where the exe is (in general, in the debug folder).

Cédric Moonen
Software developer

Charting control [v1.2]

Re: Application failed to start because .dll not found

Peter Weyzen25-Oct-07 22:19

Peter Weyzen

25-Oct-07 22:19

You should run a dependency check on your exe and your DLL. It should help you determine what other DLL's are required to load yours.

Get this utility: Dependency Walker[^]

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br />
Peter Weyzen<br />
Staff Engineer<br />
<A HREF="http://www.soonr.com">SoonR Inc -- PC Power delivered to your phone</A>

Re: Application failed to start because .dll not found

ThatsAlok28-Oct-07 23:13

ThatsAlok

28-Oct-07 23:13

ashishbhatt wrote:
This application has failed to start because VNCHooks.dll was not found.Re-installing the application may fix this problem.

try copying it with same folder as of executable

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You

LED glow in external keyboard

Anu_Bala25-Oct-07 19:46

Anu_Bala

25-Oct-07 19:46

Hi,
Im coding for MDI application. In that we include external keyboard(other that system keyboard)through port.My application is some process control based. My problem is
If i get any alarm in my applcation,then LED in my external keyboard should get blink. I dont how to code fro blinking.And i searched i didnot get the solution.Pls help me out.

I have various view in my application like alarm view,annunciator view etc.,
In external keyboard i have particular to see alrm view,annunciator view...
In that each button there is LED,if i get any alarm in alarm view,then LED in that button should glow.No need of blinking,only the LED should glow.IF get to Alrm view page and i will do some process and i will off the alarm.Then LED shold not stop glowing.

I need help for this only.

Anu

Problem with diabling images in the tool bar

Priya_Sundar25-Oct-07 19:37

Priya_Sundar

25-Oct-07 19:37

Hi!
I am using a imagelist with a toolbar and when I am trying to disable an image in the tool bar the image is getting completely faded (no image is being displayed but simply a complete gray section is being displayed). However I want the image to be displayed in a shaded mode (similar to a general disabled image). Is there anything I need to do this? I appreciate your quick help.
Thanks in advance.

Priya Sundar

Regarding writing object into file anf retrieve it back as require

H4u3225-Oct-07 19:17

H4u32

25-Oct-07 19:17

I am having an object of my own custom class, I want to store it in some file and fetch back as and when required. I have tried to store object simply with CFile, but it is storing some junk values and not also giving correct values whatever i tried to store in it.
Please guide me in this matter, how could i accomplish it?

Hemang Raval
B.E. - I.T.

Re: Regarding writing object into file anf retrieve it back as require

chandu00425-Oct-07 19:32

chandu004

25-Oct-07 19:32

hai,
you didnt specify how you have attempted to store your object there. may be some snippet of code.

Re: Regarding writing object into file anf retrieve it back as require

H4u3225-Oct-07 19:43

H4u32

25-Oct-07 19:43

First thank you for considering my question.

I tried with following simple code:

<br />
<br />
MyObj * obj = new MyObj();<br />
obj->sharedObjectFunction((unsigned char*)recvBuff2, len);<br />
<br />
CFile file;<br />
file.Open(CString("d://TestFiles//RTMPServer//ClientToServer_msg3.txt"), CFile::modeCreate | CFile::modeWrite);<br />
file.Write(recvPack, SObj->packetCounter);<br />
file.Close();<br />
<br />

I want to store unsigned char* data returned to my object named obj in my case. i am simply writing that object to file. this code works fine with only unsigned char* dat .Now you tell me, Is it possible to write object in file with this code ?

Hemang Raval

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