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Hi,
I have a problem in casting CDBVariant string object.
CDBVariant name<br />
...
recset.GetFieldValue("Name",name);<br />
CString str = name.m_pstring;<br />
CString str = (CString&)name.m_pstring;
Thank you in advance.
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m_pstring is of type CString *, so
CString str = *(name.m_pstring); should work fine if the pointer is ok.
rechi
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Hi everybody
I don't understand why this morning when i tried to start my dialog based application, the message box has opened with the following message:
Uhandled exception in Fractal_v1_0.exe:0xC000005: Access Violation
So i've found that this problem comes from the following line of code in the function InitInstance:
m_pMainWnd=&Dlg;
The big problem is that my application used to run before, so is anybody could explain me where could this problem come?
Thanks in advance
gerald
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Have you added any controls to the dialog which would cause CreateDialog to fail?
You can add "no fail create" style (in the more styles box) to your dialog and see
if any bits of it don't appear or cause your OnInitDialog / DoDataExchange functions
to die.
Good luck,
Iain.
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For your first question i answer : yes
I'm sorry, but i'm not sure to understand exactly what you mean by adding "no fail create" style how could i do that?
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Open the relevant dialog in VC++.
Select the dialog itself. Press return and bring up the options box.
One of the tabs at the top of the options box says "More styles".
One if the checkboxes there says "no fail create".
This sets a style flags telling windows not to fail on CreateDialog
even if it can't create a part of the dialog box.
OK?
Iain.
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Your method works if i choose Win32 Release mode for debugging my application, but with debug mode it doesn't work anymore, why?
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I don't know exactly why, but there is an obvious place to start. In debug mode, newly
allocated memory is filled with CC in each byte.
In Release, it is filled with 00 in each byte. So you may have a variable that you have
not explicitly initialised, but Release sets it to 0 / NULL. Maybe you've missed a
DDX_Control?
You'll need to put breakpoints in your dialogs constructor, OnInitDialog, etc and see
where it dies in more detail.
If you are really stuck, email me your project, and I'll have a look see.
Iain.
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How i will get to know that my Windows OS is hooked by some other application?  Can anyone help me for the same PLZ.
Thank you.
Vilas Shewale. 
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:-OI am developing a MFC application( SDI and style is explorer.) I want the list of all the computers (systems ) if whole network ?
I need to make a similiar applicaion like "Network Neigbourhood"
ie. how to list all the n.w
Is there any feature available in VC++ for this ???
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I've just had a quick look, and the article
Enumeration of Computer Names and their IP address
[^]
looks like it may be what you want.
If you want to browse for a computer,
SHBrowseForFolder () with a flag of BIF_BROWSEFORCOMPUTER will
give you what you want. You can use SHGetSpecialFolderPath (CSIDL_NETWORK)
to get the PIDL of Network Neighbourhood.
Good luck,
Iain
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I've searched the Internet and found no help on this particular subject. I need to justify my text so as both the left and right margin are aligned. I can do left align, right align and centering but unable to do justify. Can anyone please help. Thank you in advance!
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I have a class derived from CRichEditCtrl, and am attempting to set its default font by filling CHARFORMAT's yHeight and calling CRichEditCtrl::SetDefaultCharFormat, but I can't seem to find an actual way to convert my value (which is in points) to the value it needs ("twips", apparently) to match the size of the font when used in other areas of my client screen (multiplying the pts value by ten causes it to be around the same size, but it seems bold, for example).
Can anybody pass down a little wisdom on this idea? I'm at somewhat of an impasse in that branch of my project. Thanks.
- Jason
(SonorkID 100.611)
The Code Project - Orange makes the art grow fonder
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how about using yHeight=points*12 and dwEffects=0 ?
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From the CHARFORMAT docs - - yHeight
- Character height, in twips (1/1440 of an inch or 1/20 of a printer's point).
So 20 twips == 1 point.
--Mike--
The Internet is a place where absolutely nothing happens.
-- Strong Bad
1ClickPicGrabber - Grab & organize pictures from your favorite web pages, with 1 click!
My really out-of-date homepage
Sonork-100.19012 Acid_Helm
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I tried yours and Moak's suggestions, but the text is still in bold. Any further ideas? Thanks for helping, and especially for taking the time to go and dig that up from the MSDN.
- Jason
(SonorkID 100.611)
The Code Project - Orange makes the art grow fonder
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Nevermind, thanks.. got it 
- Jason
(SonorkID 100.611)
The Code Project - Orange makes the art grow fonder
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Hi,
I have a simple button in a dialog box. I want to paint a bitmap on the button. I created the bitmap in Resource Editor. It is ready to be imported to the program.
How do you paint a bitmap to a button?
I tried SetBitmap(), but it wants an HBITMAP structure.
Thanks,
Kuphryn
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use LoadImage() to load the bitmap resource.
m_hBitmap = (HBITMAP)LoadImage (AfxGetInstanceHandle(),
MAKEINTRESOURCE (IDB_MYBITMAP),
IMAGE_BITMAP,
0,
0,
LR_DEFAULTCOLOR);
if (m_hBitmap)
m_MyButton.SetBitmap(m_hBitmap);
CPUA 0x5041
Sonork 100.11743 Chicken Little
"You're obviously a superstar." - Christian Graus about me - 12 Feb '03
Within you lies the power for good - Use it!
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Nice! Thanks.
I implemented your code. However, Window would not paint the bitmap onto the button. Maybe I did something wrong.
Kuphryn
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Okay. I made a mistake and did not set the button to process accept bitmap.
Thanks again.
Kuphryn
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Hi,
I use pDC->ExcludeClipRect(rectItems) to exclude a part of the client area being painted. This should be temporary and I like to add the rectangle again (restore previous clipping region)....
...but there is no CDC::IncludeClipRect()?
Prolly I should work with help of SaveDC/RestoreDC instead, what do you think?
Thanks for help
Moak
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Use CDC::ExtSelectClipRgn, this will add the new rgn that you specify to the existing clipping region. You may also want to check out a tutorial that I wrote on ^].
Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!
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Okie thanks, I'll have a look on it!
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