Csharp/CSharp Tutorial/GUI Windows Forms/Clipboard
Содержание
Clipboard Formats Available
<source lang="csharp">using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data;
public class FormatsForm : System.Windows.Forms.Form
{
private System.Windows.Forms.ListBox lbFormats;
private System.Windows.Forms.Button cmdCheckClipboard;
public FormatsForm()
{
this.lbFormats = new System.Windows.Forms.ListBox();
this.cmdCheckClipboard = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// lbFormats
//
this.lbFormats.Location = new System.Drawing.Point(8, 8);
this.lbFormats.Name = "lbFormats";
this.lbFormats.Size = new System.Drawing.Size(272, 199);
this.lbFormats.TabIndex = 0;
//
// cmdCheckClipboard
//
this.cmdCheckClipboard.Location = new System.Drawing.Point(8, 216);
this.cmdCheckClipboard.Name = "cmdCheckClipboard";
this.cmdCheckClipboard.Size = new System.Drawing.Size(104, 23);
this.cmdCheckClipboard.TabIndex = 1;
this.cmdCheckClipboard.Text = "check clipboard";
this.cmdCheckClipboard.Click += new System.EventHandler(this.cmdCheckClipboard_Click);
//
// FormatsForm
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 273);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.cmdCheckClipboard,
this.lbFormats});
this.Name = "FormatsForm";
this.Text = "View Formats";
this.Load += new System.EventHandler(this.FormatsForm_Load);
this.ResumeLayout(false);
}
static void Main()
{
Application.Run(new FormatsForm());
}
private void cmdCheckClipboard_Click(object sender, System.EventArgs e)
{
lbFormats.Items.Clear();
IDataObject data = Clipboard.GetDataObject();
string[] astrFormats = data.GetFormats(true);
for (int i=0; i < astrFormats.Length; i++)
lbFormats.Items.Add(astrFormats[i]);
}
private void FormatsForm_Load(object sender, System.EventArgs e)
{
}
}</source>
Clipboard Set Data Object
<source lang="csharp">using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data;
public class MultipleFormatsForm : System.Windows.Forms.Form
{
private System.Windows.Forms.Button cmdSet;
public MultipleFormatsForm()
{
this.cmdSet = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// cmdSet
//
this.cmdSet.Location = new System.Drawing.Point(56, 40);
this.cmdSet.Name = "cmdSet";
this.cmdSet.Size = new System.Drawing.Size(160, 23);
this.cmdSet.TabIndex = 0;
this.cmdSet.Text = "set multiple formats";
this.cmdSet.Click += new System.EventHandler(this.cmdSet_Click);
//
// MultipleFormatsForm
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 117);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.cmdSet});
this.Name = "MultipleFormatsForm";
this.Text = "Set multiple formats";
this.ResumeLayout(false);
}
static void Main()
{
Application.Run(new MultipleFormatsForm());
}
private void cmdSet_Click(object sender, System.EventArgs e)
{
string strText = "Hello World";
string strHtml = "Hello World
"; DataObject data = new DataObject();
data.SetData(strText);
data.SetData(DataFormats.Html, strHtml);
data.SetData("My.Internal.Format","Some internal data");
Clipboard.SetDataObject(data, true);
}
}</source>
Clipboard Viewer
<source lang="csharp">using System; using System.Drawing; using System.Drawing.Imaging; using System.IO; using System.Windows.Forms;
class ClipView: Form {
string[] astrFormats =
{
DataFormats.Bitmap, DataFormats.rumaSeparatedValue, DataFormats.Dib,
DataFormats.Dif, DataFormats.EnhancedMetafile, DataFormats.FileDrop,
DataFormats.Html, DataFormats.Locale, DataFormats.MetafilePict,
DataFormats.OemText, DataFormats.Palette, DataFormats.PenData,
DataFormats.Riff, DataFormats.Rtf, DataFormats.Serializable,
DataFormats.StringFormat, DataFormats.SymbolicLink, DataFormats.Text,
DataFormats.Tiff, DataFormats.UnicodeText, DataFormats.WaveAudio
};
Panel panelDisplay;
RadioButton[] aradio;
RadioButton radioChecked;
public static void Main()
{
Application.Run(new ClipView());
}
public ClipView()
{
panelDisplay = new Panel();
panelDisplay.Parent = this;
panelDisplay.Dock = DockStyle.Fill;
panelDisplay.Paint += new PaintEventHandler(PanelOnPaint);
panelDisplay.BorderStyle = BorderStyle.Fixed3D;
Splitter split = new Splitter();
split.Parent = this;
split.Dock = DockStyle.Left;
Panel panel = new Panel();
panel.Parent = this;
panel.Dock = DockStyle.Left;
panel.Width = 200;
aradio = new RadioButton[astrFormats.Length];
EventHandler eh = new EventHandler(RadioButtonOnClick);
for (int i = 0; i < astrFormats.Length; i++)
{
aradio[i] = new RadioButton();
aradio[i].Parent = panel;
aradio[i].Location = new Point(4, 12 * i);
aradio[i].Size = new Size(300, 12);
aradio[i].Click += eh;
aradio[i].Tag = astrFormats[i];
}
AutoScaleBaseSize = new Size(4, 8);
Timer timer = new Timer();
timer.Interval = 1000;
timer.Tick += new EventHandler(TimerOnTick);
timer.Enabled = true;
}
void TimerOnTick(object obj, EventArgs ea)
{
IDataObject data = Clipboard.GetDataObject();
for (int i = 0; i < astrFormats.Length; i++)
{
aradio[i].Text = astrFormats[i];
aradio[i].Enabled = data.GetDataPresent(astrFormats[i]);
if (aradio[i].Enabled)
{
if (!data.GetDataPresent(astrFormats[i], false))
aradio[i].Text += "*";
object objClip = data.GetData(astrFormats[i]);
try
{
aradio[i].Text += " (" + objClip.GetType() + ")";
}
catch
{
aradio[i].Text += " (Exception on GetType!)";
}
}
}
panelDisplay.Invalidate();
}
void RadioButtonOnClick(object obj, EventArgs ea)
{
radioChecked = (RadioButton) obj;
panelDisplay.Invalidate();
}
void PanelOnPaint(object obj, PaintEventArgs pea)
{
Panel panel = (Panel) obj;
Graphics grfx = pea.Graphics;
Brush brush = new SolidBrush(panel.ForeColor);
if (radioChecked == null || !radioChecked.Enabled)
return;
IDataObject data = Clipboard.GetDataObject();
object objClip = data.GetData((string) radioChecked.Tag);
if (objClip == null)
return;
else if (objClip.GetType() == typeof(string))
{
grfx.DrawString((string)objClip, Font, brush,
panel.ClientRectangle);
}
else if (objClip.GetType() == typeof(string[])) // FileDrop
{
string str = string.Join("\r\n", (string[]) objClip);
grfx.DrawString(str, Font, brush, panel.ClientRectangle);
}
else if (objClip.GetType() == typeof(Bitmap) ||
objClip.GetType() == typeof(Metafile) ||
objClip.GetType() == typeof(Image))
{
grfx.DrawImage((Image)objClip, 0, 0);
}
else if (objClip.GetType() == typeof(MemoryStream))
{
Stream stream = (Stream) objClip;
byte[] abyBuffer = new byte[16];
long lAddress = 0;
int iCount;
Font font = new Font(FontFamily.GenericMonospace,
Font.SizeInPoints);
float y = 0;
while ((iCount = stream.Read(abyBuffer, 0, 16)) > 0)
{
lAddress += 16;
y += font.GetHeight(grfx);
if (y > panel.Bottom)
break;
}
}
}
}</source>
Simple Clipboard
<source lang="csharp">using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data;
public class ClipboardTestForm : System.Windows.Forms.Form
{
private System.Windows.Forms.Button cmdString2Clipboard;
private System.Windows.Forms.Button cmdImage2Clipboard;
private System.Windows.Forms.Button cmdGetAsString;
private System.Windows.Forms.Button cmdGetImage;
public ClipboardTestForm()
{
this.cmdString2Clipboard = new System.Windows.Forms.Button();
this.cmdImage2Clipboard = new System.Windows.Forms.Button();
this.cmdGetAsString = new System.Windows.Forms.Button();
this.cmdGetImage = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// cmdString2Clipboard
//
this.cmdString2Clipboard.Location = new System.Drawing.Point(8, 16);
this.cmdString2Clipboard.Name = "cmdString2Clipboard";
this.cmdString2Clipboard.Size = new System.Drawing.Size(136, 23);
this.cmdString2Clipboard.TabIndex = 0;
this.cmdString2Clipboard.Text = "put string in clipboard";
this.cmdString2Clipboard.Click += new System.EventHandler(this.cmdString2Clipboard_Click);
//
// cmdImage2Clipboard
//
this.cmdImage2Clipboard.Location = new System.Drawing.Point(8, 48);
this.cmdImage2Clipboard.Name = "cmdImage2Clipboard";
this.cmdImage2Clipboard.Size = new System.Drawing.Size(136, 23);
this.cmdImage2Clipboard.TabIndex = 1;
this.cmdImage2Clipboard.Text = "put image in clipboard";
this.cmdImage2Clipboard.Click += new System.EventHandler(this.cmdImage2Clipboard_Click);
//
// cmdGetAsString
//
this.cmdGetAsString.Location = new System.Drawing.Point(176, 16);
this.cmdGetAsString.Name = "cmdGetAsString";
this.cmdGetAsString.Size = new System.Drawing.Size(136, 23);
this.cmdGetAsString.TabIndex = 2;
this.cmdGetAsString.Text = "get as string";
this.cmdGetAsString.Click += new System.EventHandler(this.cmdGetAsString_Click);
//
// cmdGetImage
//
this.cmdGetImage.Location = new System.Drawing.Point(176, 48);
this.cmdGetImage.Name = "cmdGetImage";
this.cmdGetImage.Size = new System.Drawing.Size(136, 23);
this.cmdGetImage.TabIndex = 3;
this.cmdGetImage.Text = "get image";
this.cmdGetImage.Click += new System.EventHandler(this.cmdGetImage_Click);
//
// ClipboardTestForm
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(320, 149);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.cmdGetImage,
this.cmdGetAsString,
this.cmdImage2Clipboard,
this.cmdString2Clipboard});
this.Name = "ClipboardTestForm";
this.Text = "Clipboard Test";
this.ResumeLayout(false);
}
static void Main()
{
Application.Run(new ClipboardTestForm());
}
private void cmdString2Clipboard_Click(object sender, System.EventArgs e)
{
string strText = "Hello World";
Clipboard.SetDataObject(strText, true);
}
private void cmdImage2Clipboard_Click(object sender, System.EventArgs e)
{
Bitmap bmp2Clipboard = new Bitmap("pinz.jpg");
Clipboard.SetDataObject(bmp2Clipboard, true);
}
private void cmdGetAsString_Click(object sender, System.EventArgs e)
{
IDataObject data = Clipboard.GetDataObject();
if (data.GetDataPresent(typeof(string)))
{
string strData = (string)data.GetData(typeof(string));
MessageBox.Show(strData);
}
else
{
MessageBox.Show("Data not retrievable as string");
}
}
private void cmdGetImage_Click(object sender, System.EventArgs e)
{
IDataObject data = Clipboard.GetDataObject();
if (data.GetDataPresent(typeof(Bitmap)))
{
Bitmap bmp = (Bitmap)data.GetData(typeof(Bitmap));
bmp.Save(@"c:\cliptest.bmp");
MessageBox.Show("Saved to c:\\cliptest.bmp");
}
else
{
MessageBox.Show("Data not retrievable as bitmap");
}
}
}</source>
