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Jul 2nd, 2005, 12:38 PM
#1
[GDI+] demo
I've been doing a few graphics demo's in the VB.Net forum and since I'm moving over to C# it would be rude to neglect the C# forum 
I'd welcome any comments you might have.
Just put a button on your form and hook it up to this sub then click it a few times...
Code:
private void button1_Click(object sender, EventArgs e)
{
Random _R = new Random();
//define a rectangle to base the gradient brush on
Rectangle r =new Rectangle(10, 10, 500, 500);
//create the brush
LinearGradientBrush lgb = new LinearGradientBrush(r, Color.Red, Color.Yellow, 45);
//create a pen from the brush
Pen coolPen = new Pen(lgb, _R.Next(15, 50));
//make the pen have a multiple-nib effect and add a few other effects
coolPen.CompoundArray = new Single[]{0.0f, 0.3f, 0.4f, 0.7f, 0.85f, 1.0f};
//these effects are activated on a random basis
if(_R.NextDouble() < 0.5) coolPen.LineJoin = LineJoin.Round;
if (_R.NextDouble() < 0.5) coolPen.StartCap = LineCap.Round;
if (_R.NextDouble() < 0.5) coolPen.EndCap = LineCap.ArrowAnchor;
//customise dash pattern
if (_R.NextDouble() < 0.2) coolPen.DashPattern = new Single[] {1f, 0.2f, 2f, 0.2f, 1f, 2f, 0.5f, 1f};
//define the bezier control points
Point[] pts = new Point[] { new Point(25,50),
new Point(400,50),
new Point(500,200),
new Point(380,230),
new Point(300,150),
new Point(120,300),
new Point(280,400) };
//get a reference to the form's graphics object
Graphics gr = this.CreateGraphics();
//clear the drawing area
gr.Clear(this.BackColor);
//antialias the drawing
gr.SmoothingMode = SmoothingMode.AntiAlias;
//draw the effect
gr.DrawBeziers(coolPen, pts);
gr.Dispose();
lgb.Dispose();
coolPen.Dispose();
}
I didn't put this in the codebank because I'm not expert enough in C# yet (havent used it in a year, just getting back into the swing of things).
Last edited by wossname; Jul 4th, 2005 at 03:47 AM.
I don't live here any more.
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Jul 3rd, 2005, 02:19 PM
#2
Re: [GDI+] demo
you noob
you need to dispose your brushes and your graphics objects and you pens and your life
rate my posts if they help ya!
Extract thumbnail without reading the whole image file: (C# - VB)
Apply texture to bitmaps: (C# - VB)
Extended console library: (VB)
Save JPEG with a certain quality (image compression): (C# - VB )
VB.NET to C# conversion tips!!
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Jul 4th, 2005, 03:38 AM
#3
Re: [GDI+] demo
That's true, forgot all about that. Not noob for long mate.
I don't live here any more.
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