How to crop and resize the Image

[NK sharma]

Hi,

I am importing one image . And then i need to popup one form asking about the croping size and resize the image
And then i i want to save the image.
So i have one form which i am calling right before desplay the image. And then i will get the croping parameters.

What i want tis how to show croping icon that works in other editers.


I modified the code as follow.

i have a form in which i have two pictureboxes in one i have source image and in another i have the result picture box.

i couldnt understand this code properly.

I applied it as follow in the ResizePic.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace TroboAki.Dialogs
{
public partial class ResizeClassPhoto : Form
{
private string sourcePicLocation;

public ResizeClassPhoto(string philepath)
{
InitializeComponent();
sourcePicLocation = philepath;
}

private void ResizeClassPhoto_Load(object sender, EventArgs e)
{
this.sourcePictureBox.ImageLocation = sourcePicLocation;
}
Boolean bHaveMouse;
Point ptOriginal = new Point();
Point ptLast = new Point();
private Image cropWidth;
private System.Drawing.Size cropHeight;

// Called when the left mouse button is pressed.
public void MyMouseDown(Object sender, MouseEventArgs e)
{
// Make a note that we "have the mouse".
bHaveMouse = true;
// Store the "starting point" for this rubber-band rectangle.
ptOriginal.X = e.X;
ptOriginal.Y = e.Y;
// Special value lets us know that no previous
// rectangle needs to be erased.
ptLast.X = -1;
ptLast.Y = -1;
}
// Convert and normalize the points and draw the reversible frame.
private void MyDrawReversibleRectangle(Point p1, Point p2)
{
Rectangle rc = new Rectangle();

// Convert the points to screen coordinates.
p1 = PointToScreen(p1);
p2 = PointToScreen(p2);
// Normalize the rectangle.
if (p1.X < p2.X)
{
rc.X = p1.X;
rc.Width = p2.X - p1.X;
}
else
{
rc.X = p2.X;
rc.Width = p1.X - p2.X;
}
if (p1.Y < p2.Y)
{
rc.Y = p1.Y;
rc.Height = p2.Y - p1.Y;
}
else
{
rc.Y = p2.Y;
rc.Height = p1.Y - p2.Y;
}
// Draw the reversible frame.
ControlPaint.DrawReversibleFrame(rc,
Color.Red, FrameStyle.Dashed);
}
// Called when the left mouse button is released.
public void MyMouseUp(Object sender, MouseEventArgs e)
{
// Set internal flag to know we no longer "have the mouse".
bHaveMouse = false;
// If we have drawn previously, draw again in that spot
// to remove the lines.
if (ptLast.X != -1)
{
Point ptCurrent = new Point(e.X, e.Y);
MyDrawReversibleRectangle(ptOriginal, ptLast);
}
// Set flags to know that there is no "previous" line to reverse.
ptLast.X = -1;
ptLast.Y = -1;
ptOriginal.X = -1;
ptOriginal.Y = -1;
}
// Called when the mouse is moved.
public void MyMouseMove(Object sender, MouseEventArgs e)
{
Point ptCurrent = new Point(e.X, e.Y);
// If we "have the mouse", then we draw our lines.
if (bHaveMouse)
{
// If we have drawn previously, draw again in
// that spot to remove the lines.
if (ptLast.X != -1)
{
MyDrawReversibleRectangle(ptOriginal, ptLast);
}
// Update last point.
ptLast = ptCurrent;
// Draw new lines.
MyDrawReversibleRectangle(ptOriginal, ptCurrent);
}
}
// Set up delegates for mouse events.
protected override void OnLoad(System.EventArgs e)
{
MouseDown += new MouseEventHandler(MyMouseDown);
MouseUp += new MouseEventHandler(MyMouseUp);
MouseMove += new MouseEventHandler(MyMouseMove);
bHaveMouse = false;
}
private void button1_Click(object sender, EventArgs e)
{

}

private void destinationPictureBox_Click(object sender, EventArgs e)
{

}

private void cropButton_Click(object sender, EventArgs e)
{
Bitmap croppedBitmap;
Image sourcePic = this.sourcePictureBox.Image;
Bitmap bit = new Bitmap(sourcePic, sourcePic.Width, sourcePic.Height);
croppedBitmap = new Bitmap(cropWidth, cropHeight);
Graphics g = Graphics.FromImage(croppedBitmap);
g.DrawImage(bit, 0, 0, rect, GraphicsUnit.Pixel);
this.destinationPictureBox.Image = croppedBitmap;
}




}
}

But its not working.
I have source picture box and destination picture box.


Thank you in Advance

NK

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