C / C++ / MFC

Re: Visual c++ command line shelling

14-Apr-04 8:41

Try as I might, I could not find a more appropriate response than this.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

vcplusplus14-Apr-04 4:20

vcplusplus

14-Apr-04 4:20

_spawnl(_P_NOWAIT, "pkzip.exe", "pkzip.exe", "a.zip", "*.txt", NULL );

Re: Visual c++ command line shelling

mikewithersone14-Apr-04 7:29

mikewithersone

14-Apr-04 7:29

They thanks to you both great help, will be able to graduate at university after all Wink | ;-)

[] /\ () X

How to disable Scroll-Bars in List-Control in XP ?

ohadp14-Apr-04 1:52

ohadp

14-Apr-04 1:52

I want to have a scroll-bar, I want it to have a non-client area (I draw a nice frame around it).

I override OnNCCalcSize/OnNCPaint, I calculate and draw my nice border but Windows-XP overwrites parts of it with the blue Vertical/Horizontal Scroll-Bars.

I've tried

<br />
InitializeFlatSB(this->m_hWnd);<br />
FlatSB_EnableScrollBar(this->m_hWnd, SB_BOTH, ESB_DISABLE_BOTH);<br />
FlatSB_ShowScrollBar(this->m_hWnd, SB_BOTH, ESB_DISABLE_BOTH);<br />

but it doesn't help.

Has anybody stumbled upon this problem ? In Windows-2000 my message-overriding prevents Windows from repainting it's scroll-bar, but under XP it somehow manages to get it in and mess-up my border Smile | :)

thanks

wprintf problem

roadragedave14-Apr-04 1:29

14-Apr-04 1:29

Im trying to print a VARIANT value to the screen using this code

TCHAR sz[MAX_PATH];
VARIANT vVal;
wprintf(sz, TEXT("Load Percentage: %s\n"), V_BSTR(&vVal));
wprintf(sz);

This builds ok, but doesnt print anything to the screen
If I use printf(sz) then I get a missmatch in variable types.

error C2664: 'printf' : cannot convert parameter 1 from 'TCHAR [260]' to 'const char *'

Anyone got any ideas on what I can do

We have a mathematician, a different kind of mathematician, and a statistician!

Prakash Nadar14-Apr-04 1:40

Prakash Nadar

14-Apr-04 1:40

roadragedave wrote:
If I use printf(sz) then I get a missmatch in variable types

printf("%s",sz); rite ???

roadragedave14-Apr-04 2:05

14-Apr-04 2:05

Very true, I am an idiot,

BUT!, when I do that I get a strange output

╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠

I have never seen these characters before

We have a mathematician, a different kind of mathematician, and a statistician!

Anthony_Yio14-Apr-04 1:51

Anthony_Yio

14-Apr-04 1:51

Use _tprintf instead

Sonork 100.41263:Anthony_Yio

Life is about experiencing ...

David Crow14-Apr-04 2:35

14-Apr-04 2:35

How about:

wsprintf(sz, TEXT("Load Percentage: %s\n"), V_BSTR(&vVal));

wprintf(TEXT("Load Percentage: %s\n"), V_BSTR(&vVal));

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

roadragedave14-Apr-04 3:43

14-Apr-04 3:43

No good, now I get an Unhandled Exception

http://www.81x.com/Authors/roadragedave/exception.jpg

We have a mathematician, a different kind of mathematician, and a statistician!

David Crow14-Apr-04 4:01

14-Apr-04 4:01

Hmmm, this code snippet works for me:

TCHAR sz[MAX_PATH];
VARIANT vVal;
vVal.vt = VT_BSTR;
vVal.bstrVal = SysAllocString(_T("95%"));
wsprintf(sz, _T("Load Percentage: %s\n"), V_BSTR(&vVal));

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

roadragedave14-Apr-04 5:07

14-Apr-04 5:07

Very nice,
What my problem is, is that I am calling a function called GetProperty

hRes = WmiTest.GetProperty(accClass, accProperty, accKey, &vVal);

vVal, which is VARIANT, has the property value which I want to display, so how do I do this?
Im sorry for being a pest on this one, thanks for your help

We have a mathematician, a different kind of mathematician, and a statistician!

roadragedave15-Apr-04 1:30

15-Apr-04 1:30

I finally got it, it was so simple in the end, I was getting an exception because I was trying to pass a uint16 to a string. For future reference if anyone has this problem

wsprintf(sz, _T("Load Percentage: %s\n"), V_BSTR(&vVal));
should be

wsprintf(sz, _T("Load Percentage: %i\n"), V_BSTR(&vVal));

Can you spot the simple difference D'Oh! | :doh:

Thanks for all yer help everyone

We have a mathematician, a different kind of mathematician.............. and a statistician!

David Crow15-Apr-04 2:39

15-Apr-04 2:39

roadragedave wrote:
wsprintf(sz, _T("Load Percentage: %i\n"), V_BSTR(&vVal));

This is not right at all. The %i type is for signed decimal integers, which is not what V_BSTR() returns. When the V_BSTR() macro is expanded, notice that it accesses the bstrVal member of the VARIANT structure, not the intVal member. You've simply masked the problem.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

roadragedave15-Apr-04 3:46

15-Apr-04 3:46

I get what you mean, however the function that gets vVal passes it back as uint16, VARIANT, I presume, is a generic data type that holds almost all simple data types and what is needed it to convert to say string, double, BSTR.
Using %s threw and exception and I could not figure out using the debuging what exactly was going wrong, I took a chance and changed it to %i, and the application works. Confused | :confused:

We have a mathematician, a different kind of mathematician, and a statistician!

David Crow15-Apr-04 4:06

15-Apr-04 4:06

roadragedave wrote:
...the function that gets vVal passes it back as uint16,

Which means you should be using V_INT() instead of V_BSTR().

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)