// Learn more about F# at http://fsharp.net
//specifies the memory location of the class files
//that will be needed in our application
open System.Collections.Generic
open System
open System.Windows.Forms
open System.ComponentModel
open System.Drawing
open System.Drawing.Printing
open System.Drawing.Imaging
let imageform = new Form(Text="Print Form",AutoScaleDimensions=new System.Drawing.SizeF(60.0F, 13.0F),ClientSize=new System.Drawing.Size(300, 250),StartPosition=FormStartPosition.CenterScreen)
//creates our control
let exitbutton=new Button(Text="Exit", Location=new System.Drawing.Point(200, 200))
let loadbutton=new Button(Text="Load", Location=new System.Drawing.Point(120, 200))
let prnbutton=new Button(Text="Print", Location=new System.Drawing.Point(40, 200))
let pic=new PictureBox(SizeMode=PictureBoxSizeMode.StretchImage,Location=new System.Drawing.Point(20, 20),BorderStyle=BorderStyle.FixedSingle,Size=new System.Drawing.Size(100, 100))
let label=new Label(AutoSize=true,Location=new System.Drawing.Point(0, 120))
let dlg=new OpenFileDialog()
let gr=imageform.CreateGraphics()
let prn=new System.Drawing.Printing.PrintDocument()
imageform .Controls.Add(pic)
imageform.Controls.Add(loadbutton)
imageform.Controls.Add(label)
imageform.Controls.Add(prnbutton)
imageform.Controls.Add(exitbutton)
//sends the data to the printer
prnbutton.Click.Add(fun startprint->prn.Print())
loadbutton.Click.Add(fun load->
//filter dialog result
dlg.Filter <- "JPEG Images (*.jpg,*.jpeg)|*.jpg;*.jpeg|Gif Images (*.gif)|*.gif"
//adds title to your dialog box
dlg.Title<-"Select an Image File"
if dlg.ShowDialog()=DialogResult.OK then
//creates a bitmap object
//assigns the image selected by the user as its value
let bmp=new System.Drawing.Bitmap(dlg.FileName)
bmp.RotateFlip(RotateFlipType.RotateNoneFlipNone)
//assigns the loaded image as a picturebox value
pic.Image<-bmp
//displays the image url in our label
label.Text<-"\t\tFilename:" + Convert.ToString(Convert.ToChar(32))+ (dlg.FileName))
//specifies the data to be printed
//in this case our image
prn.PrintPage.Add(fun printdata->gr.DrawImage(pic.Image,10,10))
//close the form
exitbutton.Click.Add(fun quit->imageform.Close())
[]
//executes our application
Application.Run(imageform)
Printing an Image Data
To print an image or text, use a PrintDocument control. To following example shows how to print an image data, using a PrintDocument control.
Drawing Triangles and Circles
To draw a triangle, use the DrawLine or DrawPolygon method. Here’s an example that uses DrawPolygon method:
// Learn more about F# at http://fsharp.net // Learn more about F# at http://fsharp.net //specifies the memory location of the class files //that will be needed in our application open System.Collections.Generic open System open System.Windows.Forms open System.ComponentModel open System.Drawing let graphicform = new Form(Text="Draw Triangle",AutoScaleDimensions=new System.Drawing.SizeF(60.0F, 13.0F),ClientSize=new System.Drawing.Size(300, 250),StartPosition=FormStartPosition.CenterScreen) //creates our control let exitbutton=new Button(Text="Exit", Location=new System.Drawing.Point(190, 200)) graphicform.Paint.Add(fun draw-> let array=[|new Point(0,150);new Point(150,10);new Point(300,150)|] let pen=new Pen(Color.Blue,Width=12.0f) draw.Graphics.DrawPolygon(pen,array)) graphicform.Controls.Add(exitbutton) //executes our application Application.Run(graphicform)To draw a filled triangle, use the FillPolygon method:
// Learn more about F# at http://fsharp.net // Learn more about F# at http://fsharp.net //specifies the memory location of the class files //that will be needed in our application open System.Collections.Generic open System open System.Windows.Forms open System.ComponentModel open System.Drawing let graphicform = new Form(Text="Draw Triangle",AutoScaleDimensions=new System.Drawing.SizeF(60.0F, 13.0F),ClientSize=new System.Drawing.Size(300, 250),StartPosition=FormStartPosition.CenterScreen) //creates our control let exitbutton=new Button(Text="Exit", Location=new System.Drawing.Point(190, 200)) graphicform.Paint.Add(fun draw-> let array=[|new Point(0,150);new Point(150,10);new Point(300,150)|] let brush=new SolidBrush(Color.Blue) draw.Graphics.FillPolygon(brush,array)) graphicform.Controls.Add(exitbutton) //executes our application Application.Run(graphicform)To draw a circle, use the DrawEllipse method:
// Learn more about F# at http://fsharp.net // Learn more about F# at http://fsharp.net //specifies the memory location of the class files //that will be needed in our application open System.Collections.Generic open System open System.Windows.Forms open System.ComponentModel open System.Drawing let graphicform = new Form(Text="Draw Circle",AutoScaleDimensions=new System.Drawing.SizeF(60.0F, 13.0F),ClientSize=new System.Drawing.Size(300, 250),StartPosition=FormStartPosition.CenterScreen) //creates our control let exitbutton=new Button(Text="Exit", Location=new System.Drawing.Point(190, 200)) graphicform.Paint.Add(fun draw-> let pen=new Pen(Color.Blue,Width=12.0f) draw.Graphics.DrawEllipse(pen,0.0f,0.0f,100.0f,100.0f)) graphicform.Controls.Add(exitbutton) //executes our application Application.Run(graphicform)To draw a solid circle, use the FillEllipse method:
// Learn more about F# at http://fsharp.net // Learn more about F# at http://fsharp.net //specifies the memory location of the class files //that will be needed in our application open System.Collections.Generic open System open System.Windows.Forms open System.ComponentModel open System.Drawing let graphicform = new Form(Text="Draw Circle",AutoScaleDimensions=new System.Drawing.SizeF(60.0F, 13.0F),ClientSize=new System.Drawing.Size(300, 250),StartPosition=FormStartPosition.CenterScreen) //creates our control let exitbutton=new Button(Text="Exit", Location=new System.Drawing.Point(190, 200)) graphicform.Paint.Add(fun draw-> let brush=new SolidBrush(Color.Blue) draw.Graphics.FillEllipse(brush,0.0f,0.0f,100.0f,100.0f)) graphicform.Controls.Add(exitbutton) //executes our application Application.Run(graphicform)
Subscribe to:
Posts (Atom)