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Hi,
IIRC it could be done with use of DeviceIoControl with IOCTL_STORAGE_CHECK_VERIFY and IOCTL_STORAGE_EJECT_MEDIA functions.
Anyway, you should find some information about it in DeviceIoControl function reference and its related articles.
Regards
================================================================================
anssi wrote:
If now it was open, then it will be closed.
And it was close, then it will be opened.
Try mciSendCommand. I remember doing it sometime back, don't remember exactly how I did it.
anssi wrote:
mailto:theanssi@naver.com
You are inviting spam by putting your mail ID like this.
================================================================================
Thanks for giving a reply, but I already know MCI command.
What I want is how to detect the state of which the tray is open or close whether there is a CD in the tray.
I also tried the method using MCI command, but the method was restricted because could check the state only there is a CD in the tray.
Please help me in detail as possible~~~
Studying English and Programming...
test
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I get this error!
error C2146: syntax error : missing ';' before identifier
I have Not forget ; I dont now way I get this. Is there someone hat nows way I get it??
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Here ya go...have one of mine...
;
Seriously, posting a few of the lines of code leading up to, and including, the line the error
occurs on would be mucho helpful in determining the problem 
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Ok here it is,
CFiles m_GetFile;
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Is CFiles a known class (known to the compiler at that point)?
If so, then the problem is in preceding line(s).
Mark
*EDIT* I get three errors compiling that one line:<br />
test.cpp(97) : error C2065: 'CFiles' : undeclared identifier<br />
test.cpp(97) : error C2146: syntax error : missing ';' before identifier 'm_GetFile'<br />
test.cpp(97) : error C2065: 'm_GetFile' : undeclared identifier
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Well yes it is byt,
this work in a difrent class so i dont anderstand why it dont work in this class.
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Larsson wrote: this work in a difrent class so i dont anderstand why it dont work in this class.
Maybe a missing header file? Does intellisense recognize the class at that point?
Problem could be on a preceding line as well.
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Yes it recognize the class.
byt what do you mean with = "Problem could be on a preceding line as well"?
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What George said 
Look on lines leading up to the line the error is caught on. Somewhere, there's an unrecognized
class, type, variable name, or perhaps even a line without a semi-colon.
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You are not listening! You are missing a ";" before the line "CFiles m_GetFile;".
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Yes I do byt I have chack over and over and I dont missing any ";"
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I could also be a malformed line also!
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Where should this error be in this class or in the class is about to include?
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Comment out the line and try to recompile.
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Look up the erorr, C2146, via http://www.google.com/microsoft or on http://msdn.microsoft.com. It is very difficult to troubleshoot code without being able to view it.
George
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Trust me I have done that, that dont help me at all.
If I remove CFiles m_GetFiles;
Then I can compile and it works fine. I can use funktion in he class in I let it be,
m_GetFiles.ReadInFile; // This work but if I compile now I get that eller. And If a compile that class I dont get any error. Im going cryase at this.
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Larsson wrote: CFiles m_GetFile;
try
CFile m_GetFile;
instead.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
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Hi everybody.
I just can not set a transparency for the cation part of the group box control. The project is a standat Visual C++ windows application, no MFC, I use ATL for windows (CDialogImpl), but it should be the same as for any other project that does not include the MFC. So, I can intercept the message that paints the static controls, and make static controls transparent like this in OnCtlColorStatic:
::SetBkMode((HDC)wParam, TRANSPARENT);
return (LRESULT) GetStockObject (HOLLOW_BRUSH);
but how to do that for a group box control? The caption of it gets a weird gray color, and I just can not get rid off it.
Thanks.
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You have a handle to the DC, did you trying setting the text color on it?
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The handle is to the message that notifies that the static controls needs to be re-drawn, there is no such message for a group-box control. Anyways, messages in ATL are much more complex than those in MFC. I am currently playing with the atlcontrols.h that comes with the new ATL 8 and is supposed to wrap most of the control's functionality...if someone does not help me here in the meantime.
Anyways, thanks for your reply.
Sarajevo, Bosnia
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A groupbox control IS a static control, thats why the messages are the same.
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No, a group box control is a BUTTON control, believe it or not.
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damir_tk wrote: ...a group box control is a BUTTON control...
Indeed!
ATL draws its own controls? It should be much easier to make transparent then.
Making the Windows group box (BUTTON) control text transparent, OTOH, good luck!
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Oh, sorry for that, I stand corrected.
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