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Re: Checking if control moved Heath Stewart12-May-04 4:46 Heath Stewart 12-May-04 4:46  If the control is placed in a container besides a form, then recurse up through the containers to get to the form, like so: private Form GetContainerForm(Control c) { if (c == null) return null; if (c is Form) return (Form)c; else return GetContainerForm(c.Parent); }   Microsoft MVP, Visual C# My Articles Size of Folder Meysam Mahfouzi12-May-04 4:19 Meysam Mahfouzi 12-May-04 4:19  I want to determine the total size of some folder including its contents. Don't forget, that's Persian Gulf not Arabian gulf! Murphy: Click Here![^] I'm thirsty like sun, more landless than wind... Re: Size of Folder Dave Kreskowiak12-May-04 4:21 Dave Kreskowiak 12-May-04 4:21  You would have to walk the directory tree from the folder your want, adding up all the file sizes inside the folder and subfolders. RageInTheMachine9532 Message Removed 12-May-04 4:27 wibblewibblewibble 12-May-04 4:27  Message Removed Re: Size of Folder Meysam Mahfouzi12-May-04 17:02 Meysam Mahfouzi 12-May-04 17:02  Thanks! Re: help on wmi and registry Heath Stewart12-May-04 4:01 Heath Stewart 12-May-04 4:01  AppPaths is used for something entirely different. You really should read the Platform SDK. What I'm suggesting you do is keep a knowledge base of known executable and product names. For example, you know that devenv.exe is the executable for the Microsoft Visual Studio .NET product. Store those as a key/value pair in a database, XML file, or some other data store. If you only want to track specific products as you mentioned before, this is the fastest way. I repeat - for the third time - querying MSI packages is far too slow and ambiquous and querying other installations is most likely not possible (I know for sure that several proprietary installers don't support this). It's just not possible. You must understand that. Keeping a knowledge base of executables and packages is the only way you'll be able to acheive what you're after - and it's unspeakably more efficient than what you wanted to do in the first place.   Microsoft MVP, Visual C# My Articles How to invoke the compress() from Zlib.dll fu012-May-04 3:00 fu0 12-May-04 3:00  from http://www.gzip.org/zlib/,i download a Zlib.dll. i try to use the functions in the DLL,but i dont know how to use them. such as this original one: int compress (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen); in C# i declare it as: [DllImport] int extern compress( out byte[] dest, out uint destlen,byte[] src, uint srclen); but it reports error. Re: How to invoke the compress() from Zlib.dll Heath Stewart12-May-04 3:09 Heath Stewart 12-May-04 3:09  Yeah, and what's the error? Also, see the defs for the parameter types to determine exactly what they are, like what's the difference between uLongf and uLong. If they don't have any API documentation, then you probably shouldn't use it if you don't know what you're doing. Besides, there are plenty of project already that let you ZIP files in .NET. See SharpZipLib[^]. ZIP is a standard (until recently, but that's only in the realm of encrypting contents which WinZip and PKZip can't agree on).   Microsoft MVP, Visual C# My Articles creating query builder karteek12-May-04 2:28 karteek 12-May-04 2:28  Hi, I would like to invoke query builder application in my program or build a query builder wizard in C#. Can some one help me in graphically displaying the tables in the query builder wizard? I want to display all tables, their attributes , and foreign key relations between tables using arrows. How can I do this?? Karteek Re: creating query builder Paul Watson12-May-04 4:47 Paul Watson 12-May-04 4:47  You could use SQLDMO, it will return all the info you need. There are quite a few articles on SQLDMO here on CP, here is the Google search result. regards, Paul Watson Bluegrass South Africa Chris Maunder wrote: "I'd rather cover myself in honey and lie on an ant's nest than commit myself to it publicly." Jon Sagara replied: "I think we've all been in that situation before." Crikey! ain't life grand? Get a reference to the Form from a IComponent on the ComponentTray Daniel Zaharia12-May-04 1:13 Daniel Zaharia 12-May-04 1:13  I have a IComponent (like DataSet) on the ComponentTray of a Form. Having only this IComponent , how can i get a reference to the Form? Thanks. Re: Get a reference to the Form from a IComponent on the ComponentTray Heath Stewart12-May-04 3:19 Heath Stewart 12-May-04 3:19  Get the Site property (returns an ISite). Then get the Container property. There's your container for the component.   Microsoft MVP, Visual C# My Articles Re: Get a reference to the Form from a IComponent on the ComponentTray Daniel Zaharia12-May-04 3:30 Daniel Zaharia 12-May-04 3:30  I have already tried that, and it returns an Microsoft.VisualStudio.Designer.Host. I think that probably i should use Site.GetService to get an appropriate service that have a reference to the form. But i don't know what service is that (or even if it exist..). Thanks Re: Get a reference to the Form from a IComponent on the ComponentTray Heath Stewart12-May-04 4:04 Heath Stewart 12-May-04 4:04  I guess it returns that because during design-time it's hosted in the component tray. The service that should help would be the System.ComponentModel.Design.IReferenceService.   Microsoft MVP, Visual C# My Articles Re: Get a reference to the Form from a IComponent on the ComponentTray Daniel Zaharia12-May-04 4:13 Daniel Zaharia 12-May-04 4:13  It is exactly whant i was lookinig for!! Tahnks! I\O ports Member 87345212-May-04 1:07 Member 873452 12-May-04 1:07  hi all can anybody tell me about functions in c# like _inp & _outp in VC++ or can u tell me how can I access 378,379,37A (parallel port) using API functions or C# thanks for all I\O ports Member 87345212-May-04 1:07 Member 873452 12-May-04 1:07  hi all can anybody tell me about functions in c# like _inp & _outp in VC++ or can u tell me how can I access 378,379,37A (parallel port) using API functions or C# Handler Problem Snowjim12-May-04 0:21 Snowjim 12-May-04 0:21  We got a problem in our project We get the error: Connot call invoke or invokeAsync on a contrik until the window handle has been created. we tested: this.creatHandle but it says that there already is an handle. We use Invoke in some usercontrols How could we solve this proble. Regards Jimmy Re: Handler Problem Heath Stewart12-May-04 3:22 Heath Stewart 12-May-04 3:22  You should actually query the Control.IsHandleCreated before setting it. If this is your own control, a common solution is to queue requests and invoke them / set them / whatever in an override to OnHandleCreated. If this is not your control you're writing, then do something similar: invoke what you need to in your event handler for the HandleCreated event. This solution is suggested on MSDN for many different situations. Just calling CreateHandle may not work because some changes to some controls cause the handle to be recreated.   Microsoft MVP, Visual C# My Articles Re: Handler Problem Snowjim12-May-04 3:27 Snowjim 12-May-04 3:27  How do i quary the control.IsHandleCreation in the OnHandleCreated override on my own made control? Is there any information about this? and where? Reagarads Jimmy Re: Handler Problem Heath Stewart12-May-04 4:03 Heath Stewart 12-May-04 4:03  You don't get IsHandleCreated in your OnHandleCreated override - the reason the event was raised (i.e., OnHandleCreated was called is because the handle was created, so of course IsHandleCreated will return true. As with anything related to the .NET FCL, all the documentation is in the Class Library[^] reference in the .NET Framework SDK.   Microsoft MVP, Visual C# My Articles i feel BitBlt function somewhat slow, right? fu012-May-04 0:19 fu0 12-May-04 0:19  i use BitBlt to capture screen. but i feel the speed is too slow. it cost me 140ms on my P4 1.8G,i845G pc. Re: i feel BitBlt function somewhat slow, right? Heath Stewart12-May-04 3:23 Heath Stewart 12-May-04 3:23  When you P/Invoke native functions, data must be marshaled. This can take some time. Another reason is that your code could be inefficient. Since you didn't post any details, it's impossible to know.   Microsoft MVP, Visual C# My Articles ApplicationIcon edolan11-May-04 23:24 edolan 11-May-04 23:24  First of all: sorry for my poor english. I have a question I hope someone can answer to. I need my .NET/C# application has more than one icon visible from ExtractIcon(...) function. But it seems this is not possible to set from VS.NET 2003. I can't believe. Where I get wrong? cheers Re: ApplicationIcon sreejith ss nair12-May-04 0:51 sreejith ss nair 12-May-04 0:51  if possible make it little bit more clear hai, enjoy coding Sreejith SS Nair

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