Re: VS .NET on Win2000 - C# Discussion Boards

imran_rafique12-Sep-02 22:26

12-Sep-02 22:26

i want to execute that line

SetWindowsHookEx(WH_JOURNALRECORD, JournalRecorderFunc,AfxGetInstanceHandle(), 0);

in csharp.
I know that SetWindowsHookEx is defiend in "user32".but the problem herer is that
I don't know where AfxGetInstanceHandle() is defiend so that i can use ijw or
pinvoke to solve my problem.

if i use it in csharp may i have to Initialized the MFC or not if yes please tell
how will i Initialized it.
how will i Initialized MFC IN MANAGED CODE?

how to use mfc dll in c# and how to access class and function in it?
related link if u could provide?

r00d0034@yahoo.com

Re: i want to execute that line

Rickard Andersson²⁰13-Sep-02 2:55

Rickard Andersson²⁰

13-Sep-02 2:55

imran_rafique wrote:
how will i Initialized MFC IN MANAGED CODE?

Cry | :((

No no no no no!!

Don't even think about it!

imran_rafique wrote:
I don't know where AfxGetInstanceHandle()

Marshal.GetHINSTANCE(...)
But I don't know how to use it! Poke tongue | ;-P

Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C#, ASP.NET and C++!

VS .NET on Win2000

shaggi12-Sep-02 22:07

shaggi

12-Sep-02 22:07

I would like ot install on my computer (128RAM, 450MHz) Windows 2000, because I hope I'll get a better performance with VS .NET, than I get under WIndowsXP. (I do not plan an upgrade until January '03)
Do I make a right guess??

Here my prob is how to install Windows 2000 without do destroy WinXP? Any ideas are appreciated!

Thank you!

Re: VS .NET on Win2000

Paul Riley13-Sep-02 0:18

Paul Riley

13-Sep-02 0:18

Shaggi wrote:
I would like ot install on my computer (128RAM, 450MHz) Windows 2000, because I hope I'll get a better performance with VS .NET, than I get under WIndowsXP. (I do not plan an upgrade until January '03)
Do I make a right guess??

Yes, because Windows XP will eat a larger part of that 128Mb RAM than Win2K will, but I'm not sure you'll get quite the benefit you're hoping for.

Shaggi wrote:
Here my prob is how to install Windows 2000 without do destroy WinXP? Any ideas are appreciated!

You need a completely spare partition, usually the primary partition of a secondary drive (not even sure if it's possible otherwise). Reboot from the CD and follow the instructions, being very careful not to format or install on the wrong drive. You should end up with a machine that asks you on startup which version of Windows you want to load.

Just as a bit of free advice - don't try to hook the software from XP into 2K, it's much safer to have two copies of everything.

Dual boot machines, as you may have guessed by now, can be very heavy on disk space; you might find it a lot cheaper just to buy a couple of 256Mb RAM chips. RAM is surprisingly cheap nowadays.

Paul

Re: VS .NET on Win2000

shaggi13-Sep-02 2:05

shaggi

13-Sep-02 2:05

thanks to you and leppie

I have too much free space on my HDD, so its going to be cheaper than another peace of RAM I also would like to be able to use Win2000 too, so installing Win2000 isn't that bad.

BTW. What about if I want to install win from HDD (I remember the first time when I did it from the CD, it took me about 2hrs Wink | ;)

Should this make a difference?

Re: VS .NET on Win2000

leppie13-Sep-02 3:51

leppie

13-Sep-02 3:51

Shaggi wrote:
What about if I want to install win from HDD (I remember the first time when I did it from the CD, it took me about 2hrs Should this make a difference?

I find that if u install from HDD, WIn2k copy the files to a temp location, however installing from a booted win2k cd wont copy the files, it will just read straight from the CD.

Smile | :)

Re: VS .NET on Win2000

Paul Riley13-Sep-02 4:21

Paul Riley

13-Sep-02 4:21

Shaggi wrote:
I have too much free space on my HDD, so its going to be cheaper than another peace of RAM I also would like to be able to use Win2000 too, so installing Win2000 isn't that bad.

That's fair enough. If you work it properly, you can do all sorts of cool things like being able to link your Outlook files to the same place, etc. Useful if you're going to be doing this long-term. I ran 2K/ME dual-boot for over a year.

Haven't found a reason yet to have XP and 2K dual boot but I'm running 738Mb of memory, so XP is fine. If I only had 128 I'd be doing the same thing you are Smile | :)

Shaggi wrote:
BTW. What about if I want to install win from HDD (I remember the first time when I did it from the CD, it took me about 2hrs Should this make a difference?

As leppie said, this isn't always a good idea and to be honest it probably wouldn't save you that much time unless you're running a slow CD ROM drive (8x or less).

Installing an OS is never a quick job.

One other piece of advice... make sure you have Win2K versions of all your hardware drivers before you start Smile | :)

Paul

Re: VS .NET on Win2000

shaggi13-Sep-02 9:20

shaggi

13-Sep-02 9:20

thank you people I'm about to start installing all the stuff... Wink | ;)

hm, perhaps I should go to the nearest church first Wink | ;)

good luck

Re: VS .NET on Win2000

leppie13-Sep-02 0:20

leppie

13-Sep-02 0:20

Hi

I already replied to this earlier !!! Mad | :mad:

You need to install WIn2000 on a diferent partition, as a fresh install, hopefully it wont overwrite the XP loader (it is practically the same). If it does, just start the install of XP again, till the 1st reboot, then the loader will be restored, then quit the install, iow select old XP menu item.

Finally, remove the XP setup entry from the boot.ini file.

Hope this help

Concerning Event Handling

afronaut12-Sep-02 17:25

afronaut

12-Sep-02 17:25

Hey all - I was asked an interesting question today which stumped me. I was using the ASP.NET Custom Validation control to do custom validation. You use the EventArgs (I forget the name of the derived class) to specify an Isvalid property for whether your custom validation is successful or not successful.
But how is this information returned to the caller, I was asked, since the EventArgs object is passed Byval? It's a copy that is local to the procedure, correct?

*->>Always working on my game, teach me
*->>something new.
cout << "dav1d\n";

Re: Concerning Event Handling

Andy Smith12-Sep-02 18:48

Andy Smith

12-Sep-02 18:48

a reference type passed "ByVal" as opposed to "ByRef" or "ref" in c#, simply means that you cannot change the reference, not that the object is copied.

Aspect Oriented Programming

Tariq12-Sep-02 9:18

Tariq

12-Sep-02 9:18

Hi,
I really would like to know more about aspect oriented programming. The only refernce to it at msdn is an article that touches too much on com and atl.
Does anyone have some material on this subject that is not so much into com?

- Tariq

Re: Aspect Oriented Programming

Rüpel12-Sep-02 20:30

Rüpel

12-Sep-02 20:30

a friend of mine writes his diploma-thesis about C# and aspect-oriented programming. seems to be a very fresh field Wink | ;)

he hasn't finished but i can ask him, if you like.

:wq

Re: Aspect Oriented Programming

Rüpel12-Sep-02 21:24

Rüpel

12-Sep-02 21:24

my friend and his professor put some slides in the web
http://www.dcl.hpi.uni-potsdam.de/folien/Net-Days/AOP-with-NET_files/frame.htm
(although my mozilla doesn't display this correctyl - you better use ms internet explorer) - maybe something on these slide helps you Roll eyes | :rolleyes:

:wq

cast string to guid

Shaun Wilde12-Sep-02 5:47

Shaun Wilde

12-Sep-02 5:47

How

most types such as int have a Parse method but Guid does not.

currently I do this

<br />
		static public Guid Parse(string input)<br />
		{<br />
			Guid guid = new Guid();<br />
			guid = (Guid)TypeDescriptor.GetConverter(guid).ConvertFromString(input);<br />
			return guid;<br />
		}<br />

but it seems very long winded.

Stupidity dies.
The end of future offspring.
Evolution wins.
- A Darwin Awards Haiku

Re: cast string to guid

Anonymous12-Sep-02 6:14

Anonymous

12-Sep-02 6:14

Won't this work for you?

<br />
Guid g = new Guid(input);<br />

Re: cast string to guid

Shaun Wilde12-Sep-02 9:48

Shaun Wilde

12-Sep-02 9:48

doh! - I never noticed that Guid took a string as a constuctor argument - I did think it was daft what I had to do and knew I was missing something

Stupidity dies.
The end of future offspring.
Evolution wins.
- A Darwin Awards Haiku

new line in label

sharon12-Sep-02 3:38

sharon

12-Sep-02 3:38

how can I make new line in label?

I want that a label will be with number unknwon of lines and i want it ot be handled in run time.
i want that a string will be created in run time and than to do : label.text = string

how can i do it?? Confused | :confused:

thank u.
sharon

Re: new line in label

Rickard Andersson²⁰12-Sep-02 3:41

Rickard Andersson²⁰

12-Sep-02 3:41

I don't have the VS.NET on this computer right now but I think you have to set the label control to have multiply lines...

Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C#, ASP.NET and C++!

Re: new line in label

Stephane Rodriguez.12-Sep-02 3:53

Stephane Rodriguez.

12-Sep-02 3:53

.Multiline = true;

MSDN doc.

MS quote (http://www.microsoft.com/ddk) : As of September 30, 2002, the Microsoft® Windows® 2000 DDK, the Microsoft Windows 98 DDK, and the Microsoft Windows NT® 4.0 DDK will no longer be available for purchase or download on this site. Support for development will ship at the same time as the Windows XP Service Pack 1 (SP1) release.

Re: new line in label

bfarley15-Sep-02 1:18

bfarley

15-Sep-02 1:18

No multiline property for a label. I think your ref is for a text box. Did you try putting a newline in the string to see what happens?

label.Text = "Text" + Environment.NewLine + "More Text";

Not sure if that will work.

Bill F

Dynamic array

D Shen12-Sep-02 3:15

D Shen

12-Sep-02 3:15

Hi,

Can someone please tell me how to make a dynamic array in C# or similar data storage type, like VB List? Thanks! Laugh | :laugh:

Re: Dynamic array

sharon12-Sep-02 3:48

sharon

12-Sep-02 3:48

with the object- ArrayList - you have to add :
using Sustem.Collection;

getting the visible pixel-colors

Rüpel12-Sep-02 2:27

Rüpel

12-Sep-02 2:27

hi,

i'm developing a program with a transparent area. i want to draw a text on that area. how do i get to know the colors of the pixels underneath? i want to adjust the textcolor, so that the text is almost always easy to read (you know, white on black, black on white, etc...)

would be the same, if i would like to develop a screenshot-program.

any idea?

thx. Blush | :O

:wq

Re: getting the visible pixel-colors

Eric Gunnerson (msft)12-Sep-02 10:21

Eric Gunnerson (msft)

12-Sep-02 10:21

I think you'll have to use P/Invoke to call directly into the Win32 API to do this.

Here's a class I wrote that should get you started; it does screenshots now.

http://www.gotdotnet.com/userarea/keywordsrch.aspx?keyword=win32window

One more thought - GDI+ supports alpha channel blending, which lets you do transparency. I don't know if it works for windows over the desktop, but it's worth exploring. You'll find it in the System.Drawing namespace.

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