Extended Use of .NET RichControl Class - C# CLabel 1.0beta

Please stop posting such articles, I am not able to see any content at all

Unclear, confusing, badly written. Overall a waste of everyones time

Well, you're wasting ours... Do we we complain?

Software Kinetics (requires SL3 beta) - Moving software

I want a control ,that can vertically input text.
how can help me,my name is jirigala, i am from China,
my home page

www.mengguren.com

I'm writing a project, I want to inherit C#'s controls, but my control can display Unicode charater (C#' original control seem cannot). I just begin, can any body help me find out some usefull code.
Thanks very much.

YEAH !!!!!!!!11

1. Imported Win32 API calls - you must use .net api.
2. Hungarian notation - read .net sdk documentation. You should use different style of code. Microsoft provide lot recomendations for naming.
3. lot of Set* functions -> In C# you must use properties.
4. .net API has systembrushes. It's bad style to create your own
5. and _many_ other defects.
final result: 1.0

p.s. sorry for english, my C++ language is much better Smile | :)

Teh hee I never laughed so much.
Ur engleesh ist very bad considiring you r called falconrulez from u s a and u sine ur nam Mike.

Mai be u write better code then, hey!

/// Author: Norm Almond
// Class: cLabel
// Version 1.00
// 20 September 2000
// Notes:
// First attempt at Evaluating and using C# and the .NET frameworks
//
//------------------------------------------------------------------------------
namespace Microsoft.Samples.WinForms.Cs.CLabel {
using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.WinForms;
using System.WinForms.Design;
using System.Drawing;
using System.Drawing.Design;
using System.Drawing.Drawing2D;
using System.IO;
using System.Timers;

//------------------------------------------------------------------------------
/// Function: CLabel
//
// Description: Constructor
//
// Notes:
//
// Maintenance:
// Name Date Version Notes
// NT ALMOND 2009200 1.0beta Origin
//------------------------------------------------------------------------------
public class CLabel : RichControl {

// Imported Win32 API calls
[sysimport(dll="gdi32.dll")]
public static extern int GetStockObject(int n);

[sysimport(dll="shell32.dll")]
public static extern int ShellExecuteA(int hwnd, String lpOperation, String lpFile, String lpParameters, String lpDirectory, int nShowCmd);

// Constants (#defines)
public const int WM_SYSCOLORCHANGE = 0x0015;
public const int DEFAULT_GUI_FONT = 17;
public const int SW_SHOWNORMAL = 1;

// Enumerators
public enum FlashType {None, Text, Background };
public enum Type3D { Raised, Sunken};
public enum BackFillMode { Normal, Gradient };
public enum TextMode { Left, Center, Right, CenterWrap, LeftWrap};
public enum BorderStyle { None, Frame, Raised, Sunken};
public enum Style3D { None, Raised, Sunken};

// Member Variables
protected TextMode m_alignment = TextMode.Left;
protected FontStyle m_fontstyle;
protected BorderStyle m_border;
protected Style3D m_font3dstyle;
protected FlashType m_Type;
protected Type3D m_3dType;
protected BackFillMode m_fillmode;
protected Color m_crText;
protected Color m_cr3DHiliteColor;
protected Color m_crHiColor;
protected Color m_crLoColor;
protected SolidBrush m_hwndBrush;
protected SolidBrush m_hBackBrush;
protected Font m_font;
protected bool m_bState;
protected bool m_bLink;
protected bool m_bTransparent;
protected bool m_bFont3d;
protected bool m_bToolTips;
protected bool m_bRotation;
protected bool m_bBKColorOverride;
protected System.Timers.Timer m_timer;

// Static varible to give labal a new text string when its instantiated
public static int nCount = 0;

public CLabel()
{

m_bTransparent = false;

m_crText = SystemColors.WindowText;

m_bState = false;
m_bTransparent = false;
m_bLink = true;
m_Type = FlashType.None;
m_bFont3d = false;
m_bToolTips = false;
m_bRotation = false;
m_fillmode = BackFillMode.Normal;
m_cr3DHiliteColor = Color.White;
m_border = BorderStyle.None;
m_font3dstyle = Style3D.None;

SetStyle(ControlStyles.Opaque, false);
SetStyle(ControlStyles.ResizeRedraw, true);

// Auto label generation
Text = String.Format("Label{0}",++nCount);

m_hwndBrush = new SolidBrush(SystemColors.Control);

int nFont = GetStockObject(DEFAULT_GUI_FONT); // Default GUI Font
m_font = Font.FromHFONT(nFont);

}

//------------------------------------------------------------------------------
/// Function: ~CLabel
//
// Description: Destructor
//
// Notes:
//
// Maintenance:
// Name Date Version Notes
// NT ALMOND 2009200 1.0beta Origin
//------------------------------------------------------------------------------
~CLabel()
{
}

//------------------------------------------------------------------------------
/// Function: SetHyperLink
//
// Description: Enables 'hyperlink' mode
//
// Notes:
//
// Maintenance:
// Name Date Version Notes
// NT ALMOND 2009200 1.0beta Origin
//------------------------------------------------------------------------------
[
Category("Label"),
Description("Enable Hyperlink Mode"),
Browsable(true),
]
public bool HyperLink {
get {
return Cursor != Cursors.Hand;
}
set {
if (value == true)
Cursor = Cursors.Hand;
else
Cursor = Cursors.Arrow;

}
}

//------------------------------------------------------------------------------
/// Function: SetTextColor
//
// Description: Sets Text Color
//
// Notes:
//
// Maintenance:
// Name Date Version Notes
// NT ALMOND 2009200 1.0beta Origin
//------------------------------------------------------------------------------
[
Category("Label"),
Description("Sets the text color"),
DefaultValue(0),
Browsable(true),
]
public Color TextColor {
get {
return m_crText;
}
set {
m_crText = value;
Invalidate();
Update();
}
}

public bool ShouldPersistTextColor() {
return !(m_crText == SystemColors.WindowText);
}

//------------------------------------------------------------------------------
/// Function: SetFont3DStyle
//
// Description: Sets the font 3D style
//
// Notes:
//
// Maintenance:
// Name Date Version Notes
// NT ALMOND 2009200 1.0beta Origin
//------------------------------------------------------------------------------
[
Category("Label"),
Description("Font 3D Style"),
DefaultValue(0),
Browsable(true),
]
public Style3D Font3DStyle
{
get {
return m_font3dstyle;
}
set {
m_font3dstyle = value;
Invalidate();
Update();
}
}

//------------------------------------------------------------------------------
/// Function: SetBorderStyle
//
// Description: Sets the border style
//
// Notes:
//
// Maintenance:
// Name Date Version Notes
// NT ALMOND 2009200 1.0beta Origin
//------------------------------------------------------------------------------
[
Category("Label"),
Description("Border Style"),
DefaultValue(0),
Browsable(true),
]
public BorderStyle LabelBorderStyle
{
get {
return m_border;
}
set {
m_border = value;
Invalidate();
Update();
}
}

//------------------------------------------------------------------------------
/// Function: SetFontItalic
//
// Description: Sets the font italic style
//
// Notes:
//
// Maintenance:
// Name Date Version Notes
// NT ALMOND 2009200 1.0beta Origin
//------------------------------------------------------------------------------
[
Category("Label"),
Description("Italics"),
DefaultValue(false),
Browsable(true),
]
public bool FontItalic {
get {
return m_fontstyle == FontStyle.Italic;
}
set {
if (value == true)
m_fontstyle |= FontStyle.Italic; else
m_fontstyle &= ~FontStyle.Italic;

m_font = new Font(m_font.Name,m_font.Size,m_fontstyle);
Invalidate();
Update();

}
}

//------------------------------------------------------------------------------
/// Function: SetFontBold
//
// Description: Sets the font bold style
//
//

hi. Yeah, that is much better Smile | :)

... but there some improvements.

1. I think _all_ font properties and variables should be removed, because RichControl has Font property.
(VS Designer can modify property with type Font)
2. m_crColor & backcolor vars & properties should be removed - use ForeColor & BackColor from RichControl
3. Remove GetStockObject - RichControl have DefaultFont property.
4. m_hwndBrush = new SolidBrush(SystemColors.Control);
-> must be changed to SystemBrushes.Control;
5. BrowsableAttribute is true by default - don't need to publish that every time... Wink | ;-)

6. in all cases "new Pen(SystemColors.xxx)" should be replaced with "SystemPens.xxx"
7. from Paint:
switch (m_border)
{
[skip]
}
... look in2 msdn for ControlPaint class (it can be found by text search)
8. I don't like winapi in net. Replace ShellExecute, please Smile | :)

//mike

Hey Mike, what about doing at least one useful thing in your life like posting an article yourself, heh? That way we all can see how beautiful is your coding style (sigh) so we can have a little laughs here Laugh | :laugh:

Hi Mike,

I am work on a project to building a blak box trading system
for a 400 person securities trading firm.
Do you know of any one who would like to work on this project.
Let me know.
Thanks.

I have to agree with mike, this is pretty horrid coding style. Why use C# when your going to import the Win32 API and use that? That pretty much defeats the purpose of .Net and C#.

While its nice to see that its possible to easily convert an MFC program to C#, I think this could have been done far better, by actually USING .Net and all that C# has to offer. Its no wonder this has such a low rating.

If you want to improove ratings, try making this a REAL .Net project and really use all that C# has to offer.

Considering this was done when .net was still beta one, i'd suggest you keep those type of comments to yourself.

BTW: this article are been superceded with the *built in* functionality offered by the .net framework.

I found the article to be really excellent. Not only provides some sample code on C# but also shows WinForms in action, and most importantly as the author pointed out, he found porting the code MFC to C#/.NET was simple, gives a relief Smile | :)

At the point where .NET is now such code deserves a 4+ definitely

Thanks Ranjeet
I will be posting revised sourcecode and a article to follow. I also will be posting ports from other MFC projects, so watch this section!

I thought it was good too - but I REALLY want to see a step by step on how you did it!

Hi, can any of you good gentlemen point me in the right direction (in terms of what to get/download from where) to get started using C#/.NET

Thanks
Phil Harding

Phil
Try this link for the "NET Framework SDK Technology Preview" but beware its rather a large download 86Mb or 9x9.5mb chunks:

http://msdn.microsoft.com/downloads/default.asp

Everything I've heard also warns against installing the preview on a "production" development machine. Has anyone installed it on a machine that they use for day-to-day VC development? Any problems?

The things I have to have work:

-VC++
-Current Platform SDK and Win2k SP1 DDK
-Current MFC

The fact that I might easily break something has inclined me not to install the preview. Are these warnings I see more to cover MSFT's butt, or should they really be listened to?

Thanks,

Ryan Schneider
NeoWorx Inc

Ryan
I first installed the .NET preview on my "test" machine, I so no problems for about a week, so I installed on my live machine, I been using it for around 2 weeks and have had no problems as of yet - fingers x'ed.

BTW: I'm running VC++, Platform SDK etc.

Norm

I'd have to say I'm a little disappointed at the low rating. Is this a reflection on the brevity of the article, the code itself, or the fact that it's C# instead of C++?

I was ecstatic to get the first C++ -> C# conversion project, and I hope other authors follow suit.

cheers,
Chris Maunde

I guess it has to reflect C# as the original gets 4+/5 :

Chris

Maybe a if I wrote a step by step guide on how the code was ported, this would improve the ratings Smile | :)

I thought by submitting the first article, would spur other programmers into doing the same.

That would be good. BTW which did you prefer as a finished product?

Kind regards

Al.

ATL, whomever that is, all the way

So what did you think about writing this code in C# using .NET? Can you describe how it compares to writing it in C++ with MFC?

Thanks,
Alvar

Extended Use of .NET RichControl Class - C# CLabel 1.0beta

License

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