Text Box Question

[Patrick De Ridder]

Re displaying text in a multi-line text box:

Is it possible to have a margin on the left hand side, or on both
sides, so the text doesn't come right up to the border(s)?

Many thanks.
--
Regards,
Patrick.

[Tom Clement]

Yes it is. This should do it for you:

[DllImport("User32.dll", EntryPoint = "SendMessage", CharSet =
CharSet.Auto)]
private static extern int SendMessageRefRect(IntPtr hWnd, UInt32 Msg, int
wParam, ref RECT rect);

private const int EM_SETRECT = 0xB3;

public static void SetTextBoxFormatingRectangle(TextBoxBase textbox,
Rectangle rect)
{
RECT rc = new RECT(rect);
SendMessageRefRect(textbox.Handle, EM_SETRECT, 0, ref rc);
}

You could also use the EM_SETMARGINS message, but that doesn't give you
control over the top and bottom.

Tom Clement
Apptero, Inc.
"Patrick De Ridder" <00*@000.00> wrote in message
news:q1********************************@4ax.com...

Re displaying text in a multi-line text box:

Is it possible to have a margin on the left hand side, or on both
sides, so the text doesn't come right up to the border(s)?

Many thanks.
--
Regards,
Patrick.

[Patrick De Ridder]

"Tom Clement" <To***********@Apptero.com> wrote in message
news:%2****************@tk2msftngp13.phx.gbl...

Yes it is. This should do it for you:

[DllImport("User32.dll", EntryPoint = "SendMessage", CharSet =
CharSet.Auto)]
private static extern int SendMessageRefRect(IntPtr hWnd, UInt32 Msg, int
wParam, ref RECT rect);

private const int EM_SETRECT = 0xB3;

public static void SetTextBoxFormatingRectangle(TextBoxBase textbox,
Rectangle rect)
{
RECT rc = new RECT(rect);
SendMessageRefRect(textbox.Handle, EM_SETRECT, 0, ref rc);
}

You could also use the EM_SETMARGINS message, but that doesn't give you
control over the top and bottom.

Tom Clement
Apptero, Inc.

Thanks a lot. I am impressed!

I have pasted in your code above #region Windows Form Designer generated
code
and I get this message upon compilation:
The type or namespace name 'RECT' could not be found (are you missing a
using directive or an assembly reference?)
--
Regards,
Patrick.

[Tom Clement]

Darn it, I forgot to include that definition. Here is it...

public struct RECT
{
public int Left;
public int Top;
public int Right;
public int Bottom;

public RECT(Rectangle rc) { Left = rc.Left; Top = rc.Top; Right =
rc.Right; Bottom = rc.Bottom; }
public RECT(int l, int t, int r, int b) { Left = l; Top = t; Right = r;
Bottom = b; }
public override string ToString() { return String.Format("RECT
({0},{1})-({2},{3})", Left, Top, Right, Bottom); }
}

Tom Clement
Apptero, Inc.

"Patrick De Ridder" <00*@000.00> wrote in message
news:10***************@evisp-news-01.ops.asmr-01.energis-idc.net...

"Tom Clement" <To***********@Apptero.com> wrote in message
news:%2****************@tk2msftngp13.phx.gbl...

Yes it is. This should do it for you:

[DllImport("User32.dll", EntryPoint = "SendMessage", CharSet =
CharSet.Auto)]
private static extern int SendMessageRefRect(IntPtr hWnd, UInt32 Msg, int wParam, ref RECT rect);

private const int EM_SETRECT = 0xB3;

public static void SetTextBoxFormatingRectangle(TextBoxBase textbox,
Rectangle rect)
{
RECT rc = new RECT(rect);
SendMessageRefRect(textbox.Handle, EM_SETRECT, 0, ref rc);
}

You could also use the EM_SETMARGINS message, but that doesn't give you
control over the top and bottom.

Tom Clement
Apptero, Inc.

Thanks a lot. I am impressed!

I have pasted in your code above #region Windows Form Designer generated
code
and I get this message upon compilation:
The type or namespace name 'RECT' could not be found (are you missing a
using directive or an assembly reference?)
--
Regards,
Patrick.

[Patrick De Ridder]

"Tom Clement" <To***********@Apptero.com> wrote in message
news:uR**************@TK2MSFTNGP09.phx.gbl...

Darn it, I forgot to include that definition. Here is it...

public struct RECT
{
public int Left;
public int Top;
public int Right;
public int Bottom;

public RECT(Rectangle rc) { Left = rc.Left; Top = rc.Top; Right =
rc.Right; Bottom = rc.Bottom; }
public RECT(int l, int t, int r, int b) { Left = l; Top = t; Right = r;
Bottom = b; }
public override string ToString() { return String.Format("RECT
({0},{1})-({2},{3})", Left, Top, Right, Bottom); }
}

Thanks you for the addition!
There seems to be one last hurdle
The type or namespace name 'DllImport' could not be found (are you missing a
using directive or an assembly reference?)
--
Regards
Patrick.

[Tom Clement]

using System.Runtime.InteropServices;

Tom Clement
Apptero, Inc.

"Patrick De Ridder" <00*@000.00> wrote in message
news:10***************@evisp-news-01.ops.asmr-01.energis-idc.net...

"Tom Clement" <To***********@Apptero.com> wrote in message
news:uR**************@TK2MSFTNGP09.phx.gbl...

Darn it, I forgot to include that definition. Here is it...

public struct RECT
{
public int Left;
public int Top;
public int Right;
public int Bottom;

public RECT(Rectangle rc) { Left = rc.Left; Top = rc.Top; Right =
rc.Right; Bottom = rc.Bottom; }
public RECT(int l, int t, int r, int b) { Left = l; Top = t; Right = r; Bottom = b; }
public override string ToString() { return String.Format("RECT
({0},{1})-({2},{3})", Left, Top, Right, Bottom); }
}
Thanks you for the addition!
There seems to be one last hurdle
The type or namespace name 'DllImport' could not be found (are you missing

a using directive or an assembly reference?)
--
Regards
Patrick.

[Patrick De Ridder]

> Thanks you for the addition!

There seems to be one last hurdle
The type or namespace name 'DllImport' could not be found (are you missing a using directive or an assembly reference?)
--
Regards
Patrick.

It would appear that this is the required reference
using System.Runtime.InteropServices;
I am left with the question how to apply it.
If anyone knows how, I would be very obliged with an example.
--
Regards
Patrick.

[Patrick De Ridder]

"Patrick De Ridder" <00*@000.00> wrote in message
news:10***************@evisp-news-01.ops.asmr-01.energis-idc.net...

It would appear that this is the required reference:

using System.Runtime.InteropServices;

**************

Presumably this should do the trick:
SetTextBoxFormatingRectangle(textBox1, 10)

It doesn't work.

The second parameter generates problems.

Any suggestions?

If this isn't the way to implement the code, what is the right way?

--
Patrick.

[Patrick De Ridder]

On Mon, 13 Oct 2003 12:05:41 -0700, "Tom Clement"
<To***********@Apptero.com> wrote:

Darn it, I forgot to include that definition. Here is it...

public struct RECT
{
public int Left;
public int Top;
public int Right;
public int Bottom;

public RECT(Rectangle rc) { Left = rc.Left; Top = rc.Top; Right =
rc.Right; Bottom = rc.Bottom; }
public RECT(int l, int t, int r, int b) { Left = l; Top = t; Right = r;
Bottom = b; }
public override string ToString() { return String.Format("RECT
({0},{1})-({2},{3})", Left, Top, Right, Bottom); }
}

Tom Clement
Apptero, Inc.

(I have solved the reference problem.)

Presumably this is how your code should be invoked:
SetTextBoxFormatingRectangle(textBox1,10);

But it doesn't work. The second parameter gives problems.

--
Regards,
Patrick.

[Tom Clement]

Hi Patrick,
In the code I provided, the second parameter is a Rectangle. That needs to
be the case, since the call provides for offsets on the Top, Right, Bottom
and Left. Here's how I call the method:

API.SetTextBoxFormatingRectangle(txtBody, new Rectangle(10,16,
txtBody.ClientSize.Width - 12, txtBody.ClientSize.Height - 20));

But to be honest with you, Patrick, this is the sort of thing you should be
able to figure out on your own. I'd recommend that you take a course at a
community college if something is available, or buy a good book on
programming. Once you get going, things turn out to be pretty
straightforward in C#, but it can be a bit of a hurdle initially.

Tom

"Patrick De Ridder" <00*@000.00> wrote in message
news:7o********************************@4ax.com...

On Mon, 13 Oct 2003 12:05:41 -0700, "Tom Clement"
<To***********@Apptero.com> wrote:

Darn it, I forgot to include that definition. Here is it...

public struct RECT
{
public int Left;
public int Top;
public int Right;
public int Bottom;

public RECT(Rectangle rc) { Left = rc.Left; Top = rc.Top; Right =
rc.Right; Bottom = rc.Bottom; }
public RECT(int l, int t, int r, int b) { Left = l; Top = t; Right = r;Bottom = b; }
public override string ToString() { return String.Format("RECT
({0},{1})-({2},{3})", Left, Top, Right, Bottom); }
}

Tom Clement
Apptero, Inc.

(I have solved the reference problem.)

Presumably this is how your code should be invoked:
SetTextBoxFormatingRectangle(textBox1,10);

But it doesn't work. The second parameter gives problems.

--
Regards,
Patrick.

[Patrick De Ridder]

On Wed, 15 Oct 2003 10:29:51 -0700, "Tom Clement"
<To***********@Apptero.com> wrote:

But to be honest with you, Patrick, this is the sort of thing you should be
able to figure out on your own. I'd recommend that you take a course at a
community college if something is available, or buy a good book on
programming. Once you get going, things turn out to be pretty
straightforward in C#, but it can be a bit of a hurdle initially.

First of all thank you. Secondly, sure I still have a hell of a lot to
learn. However, I have been reading and will go on doing so.
--
Regards,
Patrick.