Hello.
I have a simple picturebox where there is a image loaded in
Im drawing a rectangle on the picturebox and when I press a button I want to invalidate it (remove the rectangle), but it doesnt seem to work
The rectangle is drawn fine and the image loads up to, but when I press my button nothing happens
Here is the code im using:
CODE
private void drawOnPic()
{
// Attach grapich to picturebox
Graphics g = Graphics.FromImage(pictureBox1.Image);
// Create a new pen that we shall use for drawing the line
Pen PenStyle = new Pen(Color.Red, 1);
// Draw a 50x50 pixels rectangle (x, y, width, hight)
g.DrawRectangle(PenStyle, 20, 20, 50, 50);
}
private void button1_Click(object sender, EventArgs e)
{
pictureBox1.Invalidate();
}
private void Form1_Load(object sender, EventArgs e)
{
drawOnPic();
}
6 Apr, 2008 - 05:51 AM
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