Develop Reference

How to print using multiple screenshots captured with copyfromscreen

I'm pretty new to C# but I finally have my first program up and running and I need to make it print. Its a window form with information and calculations on different tab controls, somewhat like Excel. The page that is currently being looked at prints fine with the copyfromscreen method, but I cannot get additional pages to print correctly. I have about 20 tabs I would like to be able to print at one time. I found a way to print the contents of controls into a textfile, but I would much prefer to be able to print what the form looks like. Thanks.
Bitmap memoryImage;
Bitmap memoryImage2;
private void CaptureScreen()
{
Graphics myGraphics = this.CreateGraphics();
Size s = tabControlMain.Size;
s.Width = s.Width + 20;
memoryImage = new Bitmap(s.Width, s.Height, myGraphics);
Graphics memoryGraphics = Graphics.FromImage(memoryImage);
memoryGraphics.CopyFromScreen(this.Location.X+15, this.Location.Y+80, 0, 0, s);
tabControlMain.SelectedIndex = 1;
memoryImage2 = new Bitmap(s.Width, s.Height, myGraphics);
Graphics memoryGraphics2 = Graphics.FromImage(memoryImage2);
memoryGraphics2.CopyFromScreen(this.Location.X + 15, this.Location.Y + 80, 0, 0, s);
}
private void printDocumentReal_PrintPage(System.Object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
e.Graphics.DrawImage(memoryImage, 0, 0);
e.Graphics.DrawImage(memoryImage2, 0, 550);
}
private void printToolStripButton_Click(object sender, EventArgs e)
{
CaptureScreen();
printDocumentReal.Print();
}

First, you should use PrintDocument and PrintPreviewDialog objects for print related tasks and an event handler for printing.
Second, you need to preform some optimization for your code, here's the solution:
private void printToolStripButton_Click(object sender, EventArgs e)
{
PrintDocument document = new PrintDocument();
document.PrintPage += new PrintPageEventHandler(document_PrintPage);
PrintPreviewDialog preview = new PrintPreviewDialog() { Document = document };
// you will be able to preview all pages before print it ;)
try
{
preview.ShowDialog();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message + "\nYou need to install a printer to preform print-related tasks!", "Print Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
Boolean firstPage = true;
private void document_PrintPage(object sender, PrintPageEventArgs e)
{
if (firstPage)
{
tabControlMain.SelectTab(0);
firstPage = false;
}
Graphics g = e.Graphics;
TabPage tab = tabControlMain.SelectedTab;
using (Bitmap img = new Bitmap(tab.Width, tab.Height))
{
tab.DrawToBitmap(img, tab.ClientRectangle);
g.DrawImage(img, new Point(e.MarginBounds.X, e.MarginBounds.Y)); // MarginBounds means the margins of the page
}
if (tabControlMain.SelectedIndex + 1 < tabControlMain.TabCount)
{
tabControlMain.SelectedIndex++;
e.HasMorePages = true;//If you set e.HasMorePages to true, the Document object will call this event handler again to print the next page.
}
else
{
e.HasMorePages = false;
firstPage = true;
}
}
I hope it's working fine with you And here's an additional one if you need to save all tabs as set of images on your hard disk:
public void RenderAllTabs()
{
foreach (TabPage tab in tabControlMain.TabPages)
{
tabControlMain.SelectTab(tab);
using (Bitmap img = new Bitmap(tab.Width, tab.Height))
{
tab.DrawToBitmap(img, tab.ClientRectangle);
img.Save(string.Format(#"C:\Tabs\{0}.png", tab.Text));
}
}
}

Try using DrawToBitmap method of TabPage instead:
private void CaptureScreen()
{
memoryImage = new Bitmap(tabControlMain.SelectedTab.Width, tabControlMain.SelectedTab.Height);
tabControlMain.SelectedTab.DrawToBitmap(memoryImage, tabControlMain.SelectedTab.ClientRectangle);
tabControlMain.SelectedIndex = 1;
memoryImage2 = new Bitmap(tabControlMain.SelectedTab.Width, tabControlMain.SelectedTab.Height);
tabControlMain.SelectedTab.DrawToBitmap(memoryImage2, tabControlMain.SelectedTab.ClientRectangle);
}
To get all the images of your TabPages, you can make a loop like this:
List<Bitmap> images = new List<Bitmap>();
private void CaptureScreen(){
foreach(TabPage page in tabControlMain.TabPages){
Bitmap bm = new Bitmap(page.Width, page.Height);
tabControlMain.SelectedTab = page;
page.DrawToBitmap(bm, page.ClientRectangle);
images.Add(bm);
}
}
//Then you can access the images of your TabPages in the list images
//the index of TabPage is corresponding to its image index in the list images

Windows Form TextBox to show images

I currently have a Windows Form project where I have created a simple chat application. Currently the chat is output to a multi line text box, however I want to now enhance it a little and add some styling. In time I wish to have some image, format it nicely and perhaps some HTML (although this isnt vital) in the future. I am just wondering what I should use to achieve this. I did think of updating a HTML page and then reload it with each new message, but this wouldn't give a very good user experience. I have also looked at the richtextbox class but this seems to be a little limited for what I am after. I am hoping some one can point me in the right direction as to what to use.
I am trying to achieve something similar as what I have highlighted in red:

While some of the other comments indicate that WPF is well suited to this, in the real world, it is not always possible or desirable to switch.
A regular owner-drawn list box is well suited to this purpose.
To create one, simply set the DrawMode on the list box to OwnerDrawVariable, e.g.
list.DrawMode = System.Windows.Forms.DrawMode.OwnerDrawVariable;
Then you just need to provide two event handlers, the first to measure the item (tell the list box how tall the item will be), and another to actually render it. e.g.
this.list.DrawItem += new System.Windows.Forms.DrawItemEventHandler(this.list_DrawItem);
this.list.MeasureItem += new System.Windows.Forms.MeasureItemEventHandler(this.list_MeasureItem);
Rendering an image into the list is fairly simple with GDI+ DrawImage (where g is your graphics context_:
Bitmap bmp = Bitmap.FromFile("test.jpg");
Rectangle source = new Rectangle(0, 0, bmp.Width, bmp.Height);
Rectangle dest = source;
g.DrawImage(bmp, dest, source, GraphicsUnit.Pixel);
This is a sample Windows Form which has an owner-drawn list box of all fonts on the system, producing variable-height owner-drawn list items:
using System;
using System.Drawing;
using System.Windows.Forms;
namespace Font_Display
{
public class Test : System.Windows.Forms.Form
{
private Font head;
private System.Windows.Forms.ListBox list;
private System.ComponentModel.Container components = null;
public Test()
{
InitializeComponent();
head = new Font("Arial", 10, GraphicsUnit.Pixel);
}
protected override void Dispose(bool disposing)
{
if (disposing) {
if (components != null) {
components.Dispose();
}
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.list = new System.Windows.Forms.ListBox();
this.SuspendLayout();
//
// list
//
this.list.DrawMode = System.Windows.Forms.DrawMode.OwnerDrawVariable;
this.list.IntegralHeight = false;
this.list.Location = new System.Drawing.Point(12, 12);
this.list.Name = "list";
this.list.Size = new System.Drawing.Size(604, 323);
this.list.TabIndex = 0;
this.list.DrawItem += new System.Windows.Forms.DrawItemEventHandler(this.list_DrawItem);
this.list.MeasureItem += new System.Windows.Forms.MeasureItemEventHandler(this.list_MeasureItem);
//
// Test
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 15);
this.ClientSize = new System.Drawing.Size(520, 358);
this.Controls.Add(this.list);
this.Name = "Test";
this.Text = "Display";
this.Load += new System.EventHandler(this.Test_Load);
this.Resize += new System.EventHandler(this.Display_Resize);
this.ResumeLayout(false);
}
#endregion
[STAThread]
static void Main()
{
Application.Run(new Test());
}
private void Test_Load(object sender, EventArgs e)
{
try {
// Loop all font families
FontFamily[] families = FontFamily.Families;
foreach (FontFamily family in families) {
try { list.Items.Add(new Font(family, 20, FontStyle.Regular, GraphicsUnit.Pixel)); continue; }
catch { }
}
Display_Resize(this, EventArgs.Empty);
}
catch {
}
}
private void Display_Resize(object sender, System.EventArgs e)
{
Rectangle r = this.ClientRectangle;
list.SetBounds(list.Left,
list.Top,
r.Width - (list.Left * 2),
r.Height - (list.Top + list.Left));
}
public string TextValue = "Example String";
public StringFormat Format
{
get
{
StringFormat format = StringFormat.GenericTypographic;
format.FormatFlags |= StringFormatFlags.NoWrap;
return format;
}
}
private void list_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e)
{
Brush back = null;
Brush fore = null;
Brush htext = null;
Rectangle r;
try {
Font font = (Font)list.Items[e.Index];
// Loop
if ((e.State & DrawItemState.Selected) != 0) {
back = new SolidBrush(Color.DarkBlue);
fore = new SolidBrush(Color.White);
htext = new SolidBrush(Color.Orange);
}
else {
back = new SolidBrush(Color.White);
fore = new SolidBrush(Color.Black);
htext = new SolidBrush(Color.DarkRed);
}
// Fill the rect
e.Graphics.FillRectangle(back, e.Bounds);
// Get the size of the header
SizeF szHeader = e.Graphics.MeasureString(font.Name, head, int.MaxValue, Format);
SizeF szText = e.Graphics.MeasureString(TextValue, font, int.MaxValue, Format);
// Draw the string
r = e.Bounds;
r.Height = (int)szHeader.Height;
e.Graphics.DrawString(font.Name, head, htext, r, Format);
// Draw the string
r = e.Bounds;
r.Y = (int)(e.Bounds.Y + szHeader.Height);
r.Height = (int)szText.Height;
e.Graphics.DrawString(TextValue, font, fore, r, Format);
}
catch {
}
finally {
if (fore != null) fore.Dispose();
if (back != null) back.Dispose();
if (htext != null) htext.Dispose();
}
}
private void list_MeasureItem(object sender, System.Windows.Forms.MeasureItemEventArgs e)
{
try {
Font font = (Font)list.Items[e.Index];
SizeF szHeader = e.Graphics.MeasureString(font.Name, head, int.MaxValue, Format);
SizeF szText = e.Graphics.MeasureString(TextValue, font, int.MaxValue, Format);
// Return it
e.ItemHeight = (int)(szText.Height + szHeader.Height);
e.ItemWidth = (int)Math.Max(szText.Width, szHeader.Width);
}
catch {
}
}
}
}

How to create a custom ToolTip with an image?

I want to create a custome tooltip with the folllowing contents:
Image at the top right corner
Text at the left side
Currently I have a class who inherits from the ToolTip Objekt.
class CustomToolTip : ToolTip
{
public CustomToolTip()
{
this.OwnerDraw = true;
this.Popup += new PopupEventHandler(this.OnPopup);
this.Draw += new DrawToolTipEventHandler(this.OnDraw);
}
private void OnPopup(object sender, PopupEventArgs e)
{
e.ToolTipSize = new Size(200, 100);
}
private void OnDraw(object sender, DrawToolTipEventArgs e)
{
}
}
But I don't know what to do in the "OnDraw-Event" to show a Image with text.
Thank you for your help

have a look on this http://www.codeproject.com/Articles/42050/ToolTip-With-Image-C
should be explained enough
myImageRectangle = Rectangle.Inflate(myToolTipRectangle, -BORDER_THICKNESS, -BORDER_THICKNESS);
Image toolTipImage = Image.FromFile(filepath);
if (toolTipImage != null)
{
myImageRectangle.Width = 200;
myTextRectangle = new Rectangle(myImageRectangle.Right, myImageRectangle.Top, (myToolTipRectangle.Width - myImageRectangle.Right), myImageRectangle.Height);
myTextRectangle.Location = new Point(myImageRectangle.Right, myImageRectangle.Top);
e.Graphics.FillRectangle(myBackColorBrush, myTextRectangle);
e.Graphics.DrawImage(toolTipImage, myImageRectangle);
e.Graphics.DrawString(e.ToolTipText, myFont,
myTextBrush, myTextRectangle, myTextFormat);
}

Please Try GDI+
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Image img = Image.FromFile("C:\filepath\filename.jpg");
e.Graphics.DrawImage(img, 0, 0);
var YourTipTextPoint = new Point(0,0);
e.Graphics.DrawString("Hello World", SystemFonts.DefaultFont, Brushes.Black, YourTipTextPoint);
}

How to print a full size image in c#

I am trying to print an image in C#. It is a full 8.5x11 size tiff created by Adobe Acrobat from a PDF. When I print it with C# using the code below, it prints correct vertically, but not horizontally, where it is pushed over about a half inch. I set the origin of the image to 0,0. Am I missing something?
private FileInfo _sourceFile;
public void Print(FileInfo doc, string printer, int tray)
{
_sourceFile = doc;
PrintDocument pd = new PrintDocument();
pd.PrinterSettings.PrinterName = printer;
pd.DocumentName = _sourceFile.FullName;
using (Image img = Image.FromFile(_sourceFile.FullName)) {
if (img.Width > img.Height) {
pd.DefaultPageSettings.Landscape = true;
}
}
pd.PrintPage += PrintPage;
foreach (PaperSource ps in pd.PrinterSettings.PaperSources) {
if (ps.RawKind == tray) {
pd.DefaultPageSettings.PaperSource = ps;
}
}
pd.Print();
}
private void PrintPage(object o, PrintPageEventArgs e)
{
using (System.Drawing.Image img = System.Drawing.Image.FromFile(_sourceFile.FullName)) {
Point loc = new Point(0, 0);
e.Graphics.DrawImage(img, loc);
}
}

look at the code from this below for a good example this code is from this link below
Print Image in C#
private void PrintImage()
{
PrintDocument pd = new PrintDocument();
pd.DefaultPageSettings.Margins = new Margins(0, 0, 0, 0);
pd.OriginAtMargins = false;
pd.DefaultPageSettings.Landscape = true;
pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);
printPreviewDialog1.Document = pd;
printPreviewDialog1.ShowDialog();
//pd.Print();
}
void pd_PrintPage(object sender, PrintPageEventArgs e)
{
double cmToUnits = 100 / 2.54;
e.Graphics.DrawImage(bmIm, 100, 1000, (float)(15 * cmToUnits), (float)(10 * cmToUnits));
}
private void button5_Click(object sender, EventArgs e)
{
PrintImage();
}

Printing image with PrintDocument. how to adjust the image to fit paper size

In C#, I am trying to print an image using PrintDocument class with the below code. The image is of size 1200 px width and 1800 px height. I am trying to print this image in a 4*6 paper using a small zeebra printer. But the program is printing only 4*6 are of the big image. that means it is not adjusting the image to the paper size !
PrintDocument pd = new PrintDocument();
pd.PrintPage += (sender, args) =>
{
Image i = Image.FromFile("C://tesimage.PNG");
Point p = new Point(100, 100);
args.Graphics.DrawImage(i, 10, 10, i.Width, i.Height);
};
pd.Print();
When i print the same image using Window Print (right click and select print, it is scaling automatically to paper size and printing correctly. that means everything came in 4*6 paper.) How do i do the same in my C# program ?

The parameters that you are passing into the DrawImage method should be the size you want the image on the paper rather than the size of the image itself, the DrawImage command will then take care of the scaling for you. Probably the easiest way is to use the following override of the DrawImage command.
args.Graphics.DrawImage(i, args.MarginBounds);
Note: This will skew the image if the proportions of the image are not the same as the rectangle. Some simple math on the size of the image and paper size will allow you to create a new rectangle that fits in the bounds of the paper without skewing the image.

Not to trample on BBoy's already decent answer, but I've done the code that maintains aspect ratio. I took his suggestion, so he should get partial credit here!
PrintDocument pd = new PrintDocument();
pd.DefaultPageSettings.PrinterSettings.PrinterName = "Printer Name";
pd.DefaultPageSettings.Landscape = true; //or false!
pd.PrintPage += (sender, args) =>
{
Image i = Image.FromFile(#"C:\...\...\image.jpg");
Rectangle m = args.MarginBounds;
if ((double)i.Width / (double)i.Height > (double)m.Width / (double)m.Height) // image is wider
{
m.Height = (int)((double)i.Height / (double)i.Width * (double)m.Width);
}
else
{
m.Width = (int)((double)i.Width / (double)i.Height * (double)m.Height);
}
args.Graphics.DrawImage(i, m);
};
pd.Print();

The solution provided by BBoy works fine. But in my case I had to use
e.Graphics.DrawImage(memoryImage, e.PageBounds);
This will print only the form. When I use MarginBounds it prints the entire screen even if the form is smaller than the monitor screen. PageBounds solved that issue. Thanks to BBoy!

You can use my code here
//Print Button Event Handeler
private void btnPrint_Click(object sender, EventArgs e)
{
PrintDocument pd = new PrintDocument();
pd.PrintPage += PrintPage;
//here to select the printer attached to user PC
PrintDialog printDialog1 = new PrintDialog();
printDialog1.Document = pd;
DialogResult result = printDialog1.ShowDialog();
if (result == DialogResult.OK)
{
pd.Print();//this will trigger the Print Event handeler PrintPage
}
}
//The Print Event handeler
private void PrintPage(object o, PrintPageEventArgs e)
{
try
{
if (File.Exists(this.ImagePath))
{
//Load the image from the file
System.Drawing.Image img = System.Drawing.Image.FromFile(#"C:\myimage.jpg");
//Adjust the size of the image to the page to print the full image without loosing any part of it
Rectangle m = e.MarginBounds;
if ((double)img.Width / (double)img.Height > (double)m.Width / (double)m.Height) // image is wider
{
m.Height = (int)((double)img.Height / (double)img.Width * (double)m.Width);
}
else
{
m.Width = (int)((double)img.Width / (double)img.Height * (double)m.Height);
}
e.Graphics.DrawImage(img, m);
}
}
catch (Exception)
{
}
}

Answer:
public void Print(string FileName)
{
StringBuilder logMessage = new StringBuilder();
logMessage.AppendLine(string.Format(CultureInfo.InvariantCulture, "-------------------[ START - {0} - {1} -------------------]", MethodBase.GetCurrentMethod(), DateTime.Now.ToShortDateString()));
logMessage.AppendLine(string.Format(CultureInfo.InvariantCulture, "Parameter: 1: [Name - {0}, Value - {1}", "None]", Convert.ToString("")));
try
{
if (string.IsNullOrWhiteSpace(FileName)) return; // Prevents execution of below statements if filename is not selected.
PrintDocument pd = new PrintDocument();
//Disable the printing document pop-up dialog shown during printing.
PrintController printController = new StandardPrintController();
pd.PrintController = printController;
//For testing only: Hardcoded set paper size to particular paper.
//pd.PrinterSettings.DefaultPageSettings.PaperSize = new PaperSize("Custom 6x4", 720, 478);
//pd.DefaultPageSettings.PaperSize = new PaperSize("Custom 6x4", 720, 478);
pd.DefaultPageSettings.Margins = new Margins(0, 0, 0, 0);
pd.PrinterSettings.DefaultPageSettings.Margins = new Margins(0, 0, 0, 0);
pd.PrintPage += (sndr, args) =>
{
System.Drawing.Image i = System.Drawing.Image.FromFile(FileName);
//Adjust the size of the image to the page to print the full image without loosing any part of the image.
System.Drawing.Rectangle m = args.MarginBounds;
//Logic below maintains Aspect Ratio.
if ((double)i.Width / (double)i.Height > (double)m.Width / (double)m.Height) // image is wider
{
m.Height = (int)((double)i.Height / (double)i.Width * (double)m.Width);
}
else
{
m.Width = (int)((double)i.Width / (double)i.Height * (double)m.Height);
}
//Calculating optimal orientation.
pd.DefaultPageSettings.Landscape = m.Width > m.Height;
//Putting image in center of page.
m.Y = (int)((((System.Drawing.Printing.PrintDocument)(sndr)).DefaultPageSettings.PaperSize.Height - m.Height) / 2);
m.X = (int)((((System.Drawing.Printing.PrintDocument)(sndr)).DefaultPageSettings.PaperSize.Width - m.Width) / 2);
args.Graphics.DrawImage(i, m);
};
pd.Print();
}
catch (Exception ex)
{
log.ErrorFormat("Error : {0}\n By : {1}-{2}", ex.ToString(), this.GetType(), MethodBase.GetCurrentMethod().Name);
}
finally
{
logMessage.AppendLine(string.Format(CultureInfo.InvariantCulture, "-------------------[ END - {0} - {1} -------------------]", MethodBase.GetCurrentMethod().Name, DateTime.Now.ToShortDateString()));
log.Info(logMessage.ToString());
}
}

Agree with TonyM and BBoy - this is the correct answer for original 4*6 printing of label. (args.PageBounds). This worked for me for printing Endicia API service shipping Labels.
private void SubmitResponseToPrinter(ILabelRequestResponse response)
{
PrintDocument pd = new PrintDocument();
pd.PrintPage += (sender, args) =>
{
Image i = Image.FromFile(response.Labels[0].FullPathFileName.Trim());
args.Graphics.DrawImage(i, args.PageBounds);
};
pd.Print();
}

all these answers has the problem, that's always stretching the image to pagesize and cuts off some content at trying this.
Found a little bit easier way.
My own solution only stretch(is this the right word?) if the image is to large, can use multiply copies and pageorientations.
PrintDialog dlg = new PrintDialog();
if (dlg.ShowDialog() == true)
{
BitmapImage bmi = new BitmapImage(new Uri(strPath));
Image img = new Image();
img.Source = bmi;
if (bmi.PixelWidth < dlg.PrintableAreaWidth ||
bmi.PixelHeight < dlg.PrintableAreaHeight)
{
img.Stretch = Stretch.None;
img.Width = bmi.PixelWidth;
img.Height = bmi.PixelHeight;
}
if (dlg.PrintTicket.PageBorderless == PageBorderless.Borderless)
{
img.Margin = new Thickness(0);
}
else
{
img.Margin = new Thickness(48);
}
img.VerticalAlignment = VerticalAlignment.Top;
img.HorizontalAlignment = HorizontalAlignment.Left;
for (int i = 0; i < dlg.PrintTicket.CopyCount; i++)
{
dlg.PrintVisual(img, "Print a Image");
}
}