Retrieving ActiveX control of existing tool windows - C# Discussion Boards

Jacques Buitendag3-Jun-03 3:38

3-Jun-03 3:38

Thanks Philip,

I remember that these functions return a hwnd handle.

So how can I go from the hwnd handle to and usable DirectX device in C#

Kind Regards
Jacques Buitendag

Multilanguage application

aeros2-Jun-03 21:53

aeros

2-Jun-03 21:53

Hi all!

I'm working on an real estates software and it will be available in multiple language (english, french, italian, and many more).
We choose C#/.Net with VS2003 for devolopping the software.
My question is what is the best way to do a multi-language application ? I mean that I don't want to change a single ligne of code if tomorrow we add a new language.
For example, a solution available in a standard MFC/C++ application is to make a DLL with all string tables as resources but we can't do this in C#/.Net (i think).
Any suggestion ?

Many thanks,
--
F.Julian

Re: Multilanguage application

apferreira3-Jun-03 1:36

apferreira

3-Jun-03 1:36

In C# NET you create embedded resource files (*.resx)that will be transformed in satellite assemblies (resource only dlls) if you specify that your application is localizable.

In Form properties, got to the localizable property and set it to true. Then change the language property to the language you want and edit your form's title, menus etc in design view. For message boxes, error messages and other things, add a resource file (through V.S. add new item option) to your project with the specified localized strings or typed resource. These added files must use the convention name.culture.resx (i.e. for French you could have Strings.fr-FR.resx has the name). Do not forget to include a fallback neutral resource file also (no need to do this for the form's specific resources since all forms have a fallback resoruce file by default).

Use Resource Manager in your code to get the specified string or typed resource from the localized resource file.

And remember, before doing all of this, code your application so that the executable code can be clearly separated from localized resources.

auto add to toolbox

Roger Alsing2-Jun-03 21:52

Roger Alsing

2-Jun-03 21:52

does anyone have any idea how i can add my (own) components to the toolbox at installtime (via my installer)?

do i need to register them in the GAC or is it possible anyway?

and how do i actually add them via code? , is there some file that i can alter , or is it in the registry?

any ideas?

//Roger

How to pass null instead of ref Rectangle

J. Dunlap2-Jun-03 10:19

J. Dunlap

2-Jun-03 10:19

I'm writing a DllImport declare for the ScrollWindowEx() function. I'm wanting to be able to pass null for some of the Rectangle arguments.

How should I marshall the rectangles?
Rose | [Rose]

[MarshallAs(UnmanagedType.LPStruct)] IntPtr lpRCScroll
Rose | [Rose]

ref Rectangle lpRCScroll
Rose | [Rose]

other

(This is what I have right now)

[DllImport("user32.dll", EntryPoint = "ScrollWindowEx")]
private extern static int ScrollWindowEx(IntPtr hwnd, 
	int dx, int dy, 
	ref Rectangle lpRCScroll, ref Rectangle lpRCClip,
	IntPtr hrgnUpdate, ref Rectangle lpRCUpdate, 
	int fuScroll);

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

Re: How to pass null instead of ref Rectangle

James T. Johnson2-Jun-03 11:02

James T. Johnson

2-Jun-03 11:02

jdunlap wrote:
ref Rectangle lpRCScroll

IIRC the Rectangle struct doesn't marshal to a Win32 RECT so you'll either have to do the marshalling yourself Dead | X|

or create a new class which does marshal as a RECT (really easy).

Creating a new class also lets you specify null as a value.

James

"I despise the city and much prefer being where a traffic jam means a line-up at McDonald's"
Me when telling a friend why I wouldn't want to live with him

Re: How to pass null instead of ref Rectangle

J. Dunlap2-Jun-03 11:55

J. Dunlap

2-Jun-03 11:55

James T. Johnson wrote:
or create a new class which does marshal as a RECT (really easy).

I had that suspicious feeling when I was looking at the UnsafeNativeMethods namespace. Half the things there are classes.

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

Retrieving ActiveX control of existing tool windows

cppmanuf2-Jun-03 10:02

cppmanuf

2-Jun-03 10:02

Helo, I'm attempting to create an Add-In for Visual Studio, and I need to modify and retrieve the contents of the Autos, Watch, Locals, and This tool windows. I've seen many samples on creating tools windows, but non on how to access the existing ones? Does anyone know?

Printing directly on the printer

Jérôme2-Jun-03 4:33

Jérôme

2-Jun-03 4:33

Hi,

I begin to develop on C#.
How can i print a message on my printer

Thanks

Re: Printing directly on the printer

Ranjan Banerji2-Jun-03 5:21

Ranjan Banerji

2-Jun-03 5:21

If you have msdn with your VS .Net then do a search for "Print Method" or for PrintDocument.Print

There are samples on the help page. A lot easier to look that up than for me trying to explain it all here. Hope this helps. Smile | :)

You could also do the same search on msdn.microsoft.com.

Re: Printing directly on the printer

Anonymous2-Jun-03 23:23

Anonymous

2-Jun-03 23:23

J'arrive à imprimer mais avec la méthode Graphics.DrawString.
Existe-il une fonction comme en VB PRINTER.PRINT qui permettrait d'imprimer une chaine de caractere directement sur l'imprimante.

Merci

datagrid

Cristian_Dior2-Jun-03 4:26

Cristian_Dior

2-Jun-03 4:26

can someone please help me giving a datagrid an eventclick?
e.g. the column should disappear on "rightMouseButtonClick"

Thanx

Re: datagrid

A.Wegierski2-Jun-03 21:30

A.Wegierski

2-Jun-03 21:30

myGrid.MouseDown+=new MouseEventHandler(myMouseDown);
...
private void myMouseDown(object sender,MouseEventargs e)
{
DataGrid.HitTestInfo hi=myGrid.HitTest(e.X,e.Y);
if(e.Button==MouseButtons.Right && hi.Type==DataGrid.HitTestType.Cell)
myGrid.TableStyles[myStyle].GridColumnStyles[hi.Column].Width=0;
}

You must have Table/Column styles defined.

Hi,
AW

Re: datagrid

Cristian_Dior3-Jun-03 20:16

Cristian_Dior

3-Jun-03 20:16

thank you for the mouse event,but there is one question i got to ask,
what about "HitTestInfo"? is there a dll for,or do i need to write a new class?

Thanx

Re: datagrid

A.Wegierski4-Jun-03 21:50

A.Wegierski

4-Jun-03 21:50

It's a standard WinForm object. If You use
using System.Windows.Forms;
it will be available

Hi,
AW

Re: datagrid

Cristian_Dior4-Jun-03 22:10

Cristian_Dior

4-Jun-03 22:10

i use system.windows.forms
dataGrid.HitTest is available,DataGrid.HitTestInfo not.

Cristian

Re: datagrid

A.Wegierski5-Jun-03 19:29

A.Wegierski

5-Jun-03 19:29

Sorry. It's invisible but works OMG | :OMG:

at me (on Framework 1.0 and 1.1). See help on HitTestInfo (in Index or Search, not Dynamic Help)

Hi,
AW

Getting the active control type

lsantos20002-Jun-03 3:19

lsantos2000

2-Jun-03 3:19

I would like to have some code in a timer control that checks the current active control and sets a string based on that

I don't know how to do this. I am trying something like this, but it doesn't work
___________________________________

// Get the type of the active control ???
Type dest=frmMain.ActiveForm.ActiveControl.GetType();

if (dest == System.Windows.Forms.TabControl)// if it is a tab control
{
if (dest.Name = "tabMainAbout") // if it is tab "Main About
{
this.setPanelMessage("This is about tab");
}
else
{
this.setPanelMessage("NOT About");
}
}
______

Could you please help?

Thanks

Leonardo

Re: Getting the active control type

Nathan Blomquist2-Jun-03 4:16

Nathan Blomquist

2-Jun-03 4:16

Try something like this:

// Get the type of the active control ???
//Type dest=frmMain.ActiveForm.ActiveControl.GetType();
Control dest = frmMain.ActiveForm.ActiveControl;

if (dest.GetType() == typeof(System.Windows.Forms.TabControl))// if it is a tab control
{
if (dest.Name = "tabMainAbout") // if it is tab "Main About
{
this.setPanelMessage("This is about tab");
}
else
{
this.setPanelMessage("NOT About");
}
}

NOTE: This is not tested...

Hope this helps,
Nathan

---------------------------
Hmmm... what's a signature?

Re: Getting the active control type

leppie2-Jun-03 7:57

leppie

2-Jun-03 7:57

Or

if (dest is System.Windows.Forms.TabControl) ...

<a TITLE="See my user info" href=http://www.codeproject.com/script/profile/whos_who.asp?id=38829>leppie<a>::<a TITLE="Go to all articles  written by me" href=http://www.codeproject.com/script/articles/list_articles.asp?userid=38829>AllocCPArticle</a>(<a TITLE="Go to my latest, greatest article!" href=http://www.codeproject.com/useritems/dfamachine.asp >Generic DFA State Machine for .NET</a>);

GetDlgCtrlID() API function doesn't work in .NET

Roman Muntyanu2-Jun-03 3:14

Roman Muntyanu

2-Jun-03 3:14

Hi all,
I was looking for ID for the button on the form and tried to use GetDlgCtrlID( hwnd) but instead of button ID I got the same handler that I passed to this function - handler to button window

private void test_Click(object sender, System.EventArgs e)
{
int i = GetDlgCtrlID(button1.Handle);
}
[DllImport("User32.dll")]
public static extern int GetDlgCtrlID(IntPtr hwndCtl );

When I did the sane in VB 6.0 this API worked properly.
In VB.NET same behavior as in C#

Does anyone faced such a problem ?
Is there may be another way how to get control ID that exist on the form

Thank you very much in advance

Roman

GDI+, removinf flicker.

Nigma2-Jun-03 2:17

Nigma

2-Jun-03 2:17

Hi im new to this message board, so hello to everyone.

Here's the gist of my problem.
Im creating a bascily program, that allows me to drag and drop boxes onto a canvas area.
I have all the code for drawin the boxes, and moving the boxes.
All the boxes are stored in an arraylist, along with there positions.

The problem is, that when i have selected a box, and i am draging it, I have to clear the canvas in white, redraw all the other boxes, and redraw the selected box. This creates a very noticible flicker around all of the other boxes, as they are being cleared and redrawn after every move of the mouse.

Does anybody have any sudgestions on how i can remove this flicker?

Thanks Anand

Re: GDI+, removinf flicker.

Philip Fitzsimons2-Jun-03 2:59

Philip Fitzsimons

2-Jun-03 2:59

you need to use "double buffering", this tcehnique relies on drawing onto a hidden area and transfer the finished image in one move. Also look at validate rectangle - you only need to redraw the parts of the image that are invalid.

"When the only tool you have is a hammer, a sore thumb you will have."

Re: GDI+, removinf flicker.

J. Dunlap2-Jun-03 8:12

J. Dunlap

2-Jun-03 8:12

this.SetStyle(ControlStyles.DoubleBuffer,true);

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

Re: GDI+, removinf flicker.

James T. Johnson2-Jun-03 10:52

James T. Johnson

2-Jun-03 10:52

You should also specify AllPaintingInWmPaint and UserPaint.

The first makes it so that the PaintBackground event is called from within the Paint event instead of the windows WM_ERASEBKGND message. If you don't specify this then the PaintBackground event is fired outside of the double buffer which can have some side effects (like flicker).

The second tells the framework to use your OnPaint/Paint handler instead of letting windows do the painting.

this.SetStyle(ControlStyles.DoubleBuffer | ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint,<br />
  true);

James

"I despise the city and much prefer being where a traffic jam means a line-up at McDonald's"
Me when telling a friend why I wouldn't want to live with him

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