Clipboard Issues - C# Discussion Boards

Re: Color Names

AB777116-Feb-06 22:05

AB7771

16-Feb-06 22:05

Thanks all,
i got the code to get the Hex value of the color.

Pramod

Re: Color Names

Joshua Quick16-Feb-06 22:45

Joshua Quick

16-Feb-06 22:45

Guffa wrote:
Now it's only 16777205 more to go. Good luck and have a happy life time inventing color names...

Hah! Well put Guffa! Laugh | :laugh:

how to get the hostname of a client pc in my network

batmanAgen16-Feb-06 18:40

batmanAgen

16-Feb-06 18:40

hi guys,

im using c#.. how can i get the hostname of a client pc from the server appliction in my network? i have no problem getting the IP address but i can't get the hostname... tnx in advance.. Smile | :)

Re: how to get the hostname of a client pc in my network

fang_eric16-Feb-06 21:23

fang_eric

16-Feb-06 21:23

I think the GetHostbyAddress() method can help you.

the followed code is copyed from msdn:
try
{
IPAddress hostIPAddress = IPAddress.Parse(IpAddressString);
IPHostEntry hostInfo = Dns.GetHostByAddress(hostIPAddress);
// Get the IP address list that resolves to the host names contained in
// the Alias property.
IPAddress[] address = hostInfo.AddressList;
// Get the alias names of the addresses in the IP address list.
String[] alias = hostInfo.Aliases;

Console.WriteLine("Host name : " + hostInfo.HostName);
Console.WriteLine("\nAliases :");
for(int index=0; index < alias.Length; index++) {
Console.WriteLine(alias[index]);
}
Console.WriteLine("\nIP address list : ");
for(int index=0; index < address.Length; index++) {
Console.WriteLine(address[index]);
}
}
catch(SocketException e)
{
Console.WriteLine("SocketException caught!!!");
Console.WriteLine("Source : " + e.Source);
Console.WriteLine("Message : " + e.Message);
}
catch(FormatException e)
{
Console.WriteLine("FormatException caught!!!");
Console.WriteLine("Source : " + e.Source);
Console.WriteLine("Message : " + e.Message);
}
catch(ArgumentNullException e)
{
Console.WriteLine("ArgumentNullException caught!!!");
Console.WriteLine("Source : " + e.Source);
Console.WriteLine("Message : " + e.Message);
}
catch(Exception e)
{
Console.WriteLine("Exception caught!!!");
Console.WriteLine("Source : " + e.Source);
Console.WriteLine("Message : " + e.Message);
}

Just do it!

user control is not getting loaded

sasire1816-Feb-06 18:31

sasire18

16-Feb-06 18:31

Hi I am using window form with C# as code behind I have created a user control and trying to call in the window application .I am able to load the dll in the reference but in the "my user control" of the toolbox it doesn't gets loaded the page is blank.If I hardcode in code behined too it doesnt get loaded in the form(GUI).

I dont know what causing the problem .Have any idea what I am suppose to do.

sasi

Re: user control is not getting loaded

nandank8116-Feb-06 18:59

nandank81

16-Feb-06 18:59

use this link to get the solution.
this link specifies how to create a usercontrol.
I tried and it worked fine.

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon/html/
vbwlkwalkthroughcreatinginheritedcontrolwithvisualc.asp

those who win are those who believe they can

Question about create simple image in c#

Yanshof16-Feb-06 18:18

Yanshof

16-Feb-06 18:18

Hi All.

I want to write some code that have some method that in create bitmap of the current screen.
What i mean is when this method is call - there will be create file in name X.bmp that contain the info of the screen ( line pressing on PrtScn button ).

How can i catch the picture ? what windows method (maybe API function) i need to use ?

Clipboard Issues

nemnesic16-Feb-06 17:14

nemnesic

16-Feb-06 17:14

Hello there!
I am trying to write a simple app that will monitor and save any changes in clipboard into some kind of an array.
I found some clipboard monitor examples online and they work great monitoring clipboard; however, when i try to save a string each time it is changed the program freaks out.

<br />
using System;<br />
using System.Drawing;<br />
using System.Collections;<br />
using System.ComponentModel;<br />
using System.Windows.Forms;<br />
using System.Data;<br />
using System.Runtime.InteropServices;<br />
<br />
namespace ClipboardMonitor<br />
{<br />
	/// <summary><br />
	/// Summary description for Form1.<br />
	/// </summary><br />
	public class Form1 : System.Windows.Forms.Form<br />
	{<br />
		[DllImport("User32.dll")]<br />
		protected static extern int SetClipboardViewer(int hWndNewViewer);<br />
<br />
		[DllImport("User32.dll", CharSet=CharSet.Auto)]<br />
		public static extern bool ChangeClipboardChain(IntPtr hWndRemove, IntPtr hWndNewNext);<br />
<br />
		[DllImport("user32.dll", CharSet=CharSet.Auto)]<br />
		public static extern int SendMessage(IntPtr hwnd, int wMsg, IntPtr wParam, IntPtr lParam);<br />
<br />
		private System.Windows.Forms.RichTextBox richTextBox1;<br />
<br />
		IntPtr nextClipboardViewer;<br />
		string dummy = "";<br />
		int n = 0;<br />
		string[] str_data = new string[50];<br />
		private System.Windows.Forms.Button button1;<br />
		private System.Windows.Forms.Button button2;<br />
<br />
		/// <summary><br />
		/// Required designer variable.<br />
		/// </summary><br />
		private System.ComponentModel.Container components = null;<br />
<br />
		public Form1()<br />
		{<br />
			//<br />
			// Required for Windows Form Designer support<br />
			//<br />
			InitializeComponent();<br />
			nextClipboardViewer = (IntPtr)SetClipboardViewer((int) this.Handle);<br />
<br />
			//<br />
			// TODO: Add any constructor code after InitializeComponent call<br />
			//<br />
		}<br />
<br />
		/// <summary><br />
		/// Clean up any resources being used.<br />
		/// </summary><br />
		protected override void Dispose( bool disposing )<br />
		{<br />
			ChangeClipboardChain(this.Handle, nextClipboardViewer);<br />
			if( disposing )<br />
			{<br />
				if (components != null) <br />
				{<br />
					components.Dispose();<br />
				}<br />
			}<br />
			base.Dispose( disposing );<br />
		}<br />
<br />
		#region Windows Form Designer generated code<br />
		/// <summary><br />
		/// Required method for Designer support - do not modify<br />
		/// the contents of this method with the code editor.<br />
		/// </summary><br />
		private void InitializeComponent()<br />
		{<br />
			this.richTextBox1 = new System.Windows.Forms.RichTextBox();<br />
			this.button1 = new System.Windows.Forms.Button();<br />
			this.button2 = new System.Windows.Forms.Button();<br />
			this.SuspendLayout();<br />
			// <br />
			// richTextBox1<br />
			// <br />
			this.richTextBox1.BorderStyle = System.Windows.Forms.BorderStyle.None;<br />
			this.richTextBox1.Location = new System.Drawing.Point(16, 16);<br />
			this.richTextBox1.Name = "richTextBox1";<br />
			this.richTextBox1.ReadOnly = true;<br />
			this.richTextBox1.Size = new System.Drawing.Size(544, 88);<br />
			this.richTextBox1.TabIndex = 0;<br />
			this.richTextBox1.Text = "richTextBox1";<br />
			this.richTextBox1.WordWrap = false;<br />
			this.richTextBox1.TextChanged += new System.EventHandler(this.richTextBox1_TextChanged);<br />
			// <br />
			// button1<br />
			// <br />
			this.button1.Location = new System.Drawing.Point(184, 176);<br />
			this.button1.Name = "button1";<br />
			this.button1.TabIndex = 1;<br />
			this.button1.Text = "button1";<br />
			this.button1.Click += new System.EventHandler(this.button1_Click);<br />
			// <br />
			// button2<br />
			// <br />
			this.button2.Location = new System.Drawing.Point(360, 176);<br />
			this.button2.Name = "button2";<br />
			this.button2.TabIndex = 2;<br />
			this.button2.Text = "button2";<br />
			this.button2.Click += new System.EventHandler(this.button2_Click);<br />
			// <br />
			// Form1<br />
			// <br />
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);<br />
			this.ClientSize = new System.Drawing.Size(568, 273);<br />
			this.Controls.Add(this.button2);<br />
			this.Controls.Add(this.button1);<br />
			this.Controls.Add(this.richTextBox1);<br />
			this.Name = "Form1";<br />
			this.Text = "Clipboard Monitor Example";<br />
			this.ResumeLayout(false);<br />
<br />
		}<br />
		#endregion<br />
<br />
		/// <summary><br />
		/// The main entry point for the application.<br />
		/// </summary><br />
		[STAThread]<br />
		static void Main() <br />
		{<br />
			Application.Run(new Form1());<br />
		}<br />
<br />
		protected override void WndProc(ref System.Windows.Forms.Message m)<br />
		{<br />
			// defined in winuser.h<br />
			const int WM_DRAWCLIPBOARD = 0x308;<br />
			const int WM_CHANGECBCHAIN = 0x030D;<br />
<br />
			switch(m.Msg)<br />
			{<br />
				case WM_DRAWCLIPBOARD:<br />
					//MessageBox.Show("call it");<br />
					DisplayClipboardData();<br />
					//MessageBox.Show("called!");<br />
					store_data(n);<br />
					n++;<br />
					if(n == 50)<br />
					{<br />
						MessageBox.Show("STOP!");<br />
					}<br />
					SendMessage(nextClipboardViewer, m.Msg, m.WParam, m.LParam);<br />
					break;<br />
<br />
				case WM_CHANGECBCHAIN:<br />
					if (m.WParam == nextClipboardViewer)<br />
						nextClipboardViewer = m.LParam;<br />
					else<br />
						SendMessage(nextClipboardViewer, m.Msg, m.WParam, m.LParam);<br />
					break;<br />
<br />
				default:<br />
					base.WndProc(ref m);<br />
					break;<br />
			}	<br />
			<br />
		}<br />
<br />
		void DisplayClipboardData()		<br />
		{<br />
			try<br />
			{<br />
				IDataObject iData = new DataObject();  <br />
				iData = Clipboard.GetDataObject();<br />
<br />
				if (iData.GetDataPresent(DataFormats.Rtf)) <br />
					richTextBox1.Rtf = (string)iData.GetData(DataFormats.Rtf);<br />
				else if (iData.GetDataPresent(DataFormats.Text))<br />
					richTextBox1.Text = (string)iData.GetData(DataFormats.Text);<br />
				else<br />
					richTextBox1.Text = "[Clipboard data is not RTF or ASCII Text]";<br />
			}<br />
			catch(Exception e)<br />
			{<br />
				MessageBox.Show(e.ToString());<br />
			}<br />
		}<br />
		<br />
		public void store_data(int n)<br />
		{<br />
			if(n!=0)<br />
			{<br />
				if(str_data[n - 1] == str_data[n])<br />
				{<br />
					n--;<br />
				<br />
				}<br />
				else<br />
				{<br />
					str_data[n] = richTextBox1.Text;<br />
				}<br />
			}<br />
			<br />
<br />
		}<br />
<br />
		private void richTextBox1_TextChanged(object sender, System.EventArgs e)<br />
		{<br />
		<br />
		}<br />
<br />
		private void button1_Click(object sender, System.EventArgs e)<br />
		{<br />
			MessageBox.Show(str_data[0] + "\n" +<br />
				str_data[1] + "\n" +<br />
				str_data[2] + "\n" +<br />
				str_data[3] + "\n" +<br />
				str_data[4] + "\n" +<br />
				str_data[5] + "\n" +<br />
				str_data[6] + "\n" +<br />
				str_data[7] + "\n" +<br />
				str_data[8] + "\n" +<br />
				str_data[9] + "\n" +<br />
				str_data[10] + "\n" +<br />
				str_data[11] + "\n" +<br />
				str_data[12] + "\n" +<br />
				str_data[13] + "\n" +<br />
				str_data[14]+ "\n" +<br />
				str_data[15] + "\n" +<br />
				str_data[16] + "\n" +<br />
				str_data[17] + "\n" +<br />
				str_data[18] + "\n" +<br />
				str_data[19] + "\n" +<br />
				str_data[20] + "\n" +<br />
				str_data[21] + "\n" +<br />
				str_data[22] + "\n" +<br />
				str_data[23] + "\n" +<br />
				str_data[24] + "\n" +<br />
				str_data[25] + "\n" +<br />
				str_data[26] + "\n" +<br />
				str_data[27] + "\n" +<br />
				str_data[28] + "\n" +<br />
				str_data[29] + "\n");<br />
<br />
			MessageBox.Show(str_data[30] + "\n" +<br />
				str_data[31] + "\n" +<br />
				str_data[32] + "\n" +<br />
				str_data[33] + "\n" +<br />
				str_data[34] + "\n" +<br />
				str_data[35] + "\n" +<br />
				str_data[36] + "\n" +<br />
				str_data[37] + "\n" +<br />
				str_data[38] + "\n" +<br />
				str_data[39] + "\n" +<br />
				str_data[40] + "\n");<br />
<br />
		}<br />
<br />
		private void button2_Click(object sender, System.EventArgs e)<br />
		{<br />
			<br />
        IDataObject d = Clipboard.GetDataObject();<br />
        if(d.GetDataPresent(DataFormats.Bitmap)) <br />
<br />
		{<br />
            MessageBox.Show("Bitmap data is Contained in the clipboard.");<br />
        } <br />
		else if(d.GetDataPresent(DataFormats.Text)) <br />
		{<br />
            MessageBox.Show("Text data is Contained in the clipboard.");<br />
        } <br />
		else {<br />
			MessageBox.Show("Some other format of data is Contained in the clipboard.");<br />
        }<br />
		}<br />
	}<br />
}<br />
<br />

please help.
Also, you know how Excel has that clipboard where you can copy up to 12 items. How can i Access those items?

thanks

nnn

C# 2005 - Datagrid and comboBoxes, How do I ... ?

JC Carmo16-Feb-06 17:08

JC Carmo

16-Feb-06 17:08

Hello everyone,

I have a DataGridView in a windows form with three columns:

Column1 is TipoComboBoxColumn
Column2 is QuantidadeColumn
Column3 is SementeComboBoxColumn

I need the SementeComboBoxColumn to display values according to the value I select in the TipoComboBoxColumn.

How do I go about accomplishing that? The code below works in part, BUT when I'm editing the value of SementeComboBoxColumn, the other values for the other rows in this column disappear. This is driving nuts!

private void tabBAdetDataGridView_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (tabBAdetDataGridView.Columns[e.ColumnIndex].Name == "EspecieComboBoxColumn")
{
this.tabSementesTableAdapter.FillByTipo(this.sascrDataSet.tabSementes, tabBAdetDataGridView.Rows[e.RowIndex].Cells["TipoComboBoxColumn"].Value.ToString());
this.EspecieComboBoxColumn.DataSource = this.tabSementesBindingSource;
this.EspecieComboBoxColumn.DisplayMember = "Semente";
}
else
{
this.tabSementesTableAdapter.Fill(this.sascrDataSet.tabSementes);
this.EspecieComboBoxColumn.DataSource = this.tabSementesBindingSource;
this.EspecieComboBoxColumn.DisplayMember = "Semente";
}
}

Thanks in advance,

JC Carmo

C# 2005 - childForm setting MDIParent of another childForm

JC Carmo16-Feb-06 17:06

JC Carmo

16-Feb-06 17:06

Hello everyone,

Here's the scenario: I have three windows forms (frmMain, frmClients, frmOrders).

There's a button on frmClients that opens frmOrders.

Now, the question is: What's the code on frmClients to define that the frmOrders' MDIParent is frmMain?

Thank you very much for your time and help,

JC Carmo.

Re: C# 2005 - childForm setting MDIParent of another childForm

nandank8116-Feb-06 19:10

nandank81

16-Feb-06 19:10

hi,if you declare frmOrder's MDiparent as frmmain,
then you cannot show frmOrder just like that.
you have to show the mdiparent of the formorder and then show formorder.

the code inside the button will be like

Order frm = new Order ();
FrmMain frmMain = new FrmMain();
frmMain.Show();
frm.MdiParent = frmMain;
frm.Show();

but infrmmain, the IsMDIContainer property should be set to true.

try this.
all the best.

those who win are those who believe they can

Re: C# 2005 - childForm setting MDIParent of another childForm

AB777116-Feb-06 19:12

AB7771

16-Feb-06 19:12

Hi,

u can simply write
frmOrders.MDIParent = this.MDIParent;

Hope that works for u

Regards,

Pramod

WebBrowser Control Callbacks

Twisty McGee16-Feb-06 15:04

Twisty McGee

16-Feb-06 15:04

I am having trouble finding anything on this topic. I have a System.Windows.Forms.WebBrowser control on my windows form. In it there are some links. When the user clicks a link I want it to fire an event back in the windows form. Any help on how to do this would be appreciated.

Thanks

Show ContextMenu Automatically

jgallen2316-Feb-06 14:16

jgallen23

16-Feb-06 14:16

I'm creating a program that I need the context menu to show up automatically on load. I tried contextMenuStrip1.Show(this, 5, 5);, but it hides right away. Is there anyway that I can make it stay open until the mouse moves away from it or clicks away?

JGA

Re: Show ContextMenu Automatically

nandank8116-Feb-06 19:14

nandank81

16-Feb-06 19:14

try this

ContextMenu menu = new ContextMenu();
MenuItem item = new MenuItem("test");
menu.MenuItems.Add(item);
menu.Show(this,new Point(10,10));

those who win are those who believe they can

Re: Show ContextMenu Automatically

jgallen2317-Feb-06 5:32

jgallen23

17-Feb-06 5:32

Looks like that works for ContextMenu, but not for ContextMenuStrip. Any ideas?

Modal Dialogs

Tyrus18216-Feb-06 14:01

Tyrus182

16-Feb-06 14:01

Ok My problem is i don't know how to make a form modal. I know how to show them modelessly with Show() but as far as displaying them as modal im lost.

Re: Modal Dialogs

Joshua Quick16-Feb-06 14:28

Joshua Quick

16-Feb-06 14:28

Form.ShowDialog()

Re: Modal Dialogs

Dave Kreskowiak16-Feb-06 14:30

Dave Kreskowiak

16-Feb-06 14:30

.ShowDialog() is what you're looking for. You can even get a return value (DialogResult) if you set it up right.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

DataList

Sean8916-Feb-06 13:53

Sean89

16-Feb-06 13:53

How would I display thimbnail images in a DataList control for a photo ablum?

[Message Deleted]

Ahmad Mahmoud [candseeme]16-Feb-06 13:33

Ahmad Mahmoud [candseeme]

16-Feb-06 13:33

[Message Deleted]

Re: Startup Edit

Christian Graus16-Feb-06 15:49

Christian Graus

16-Feb-06 15:49

Please don't 'advertise' your article here, it will probably result in it getting some 1 votes, and generally annoy people.

Christian Graus - Microsoft MVP - C++

Re: Startup Edit

Ahmad Mahmoud [candseeme]18-Feb-06 22:20

Ahmad Mahmoud [candseeme]

18-Feb-06 22:20

I'm so so sorry

i really didn't mean it

Ahmad Shaban

Re: Startup Edit

Christian Graus19-Feb-06 7:45

Christian Graus

19-Feb-06 7:45

LOL - my son tells me he 'didn't mean it', when he plainly did. However, I'm glad you deleted your post, you will definately find that posting ads anywhere except via placing an ad with the site will not result in anything positive for you.

Christian Graus - Microsoft MVP - C++

Implementing a .NET IDE Designer-like Application

Pink Floyd16-Feb-06 12:50

Pink Floyd

16-Feb-06 12:50

Hi,
I need to create an application that must be able to load the definition of a C# Windows Forms o User Control and show it properly in a windows forms just like the .NET IDE Designer does. Then the user can select controls and setup some properties.

How can I do this? Using reflection or what?
I appreciate any help or guidance.

FJ

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