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Hi,
I have two bytes which I need to obtain the sum of them.
I have done like this but the result is wrong.
int result = byte[1] + byte[2];
How can I do that?
Thanks in advanced
Merh
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merh wrote: I have done like this but the result is wrong.
Sure? How did you check the result?
Please post code, inputs and ouput.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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I have an array of bytes. s below is my array and I try to read byte nr 0 and add to nr 1.
for(int i=0; i<=1; i++)
int result += s[i];
Thanks
Merh
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What are the values of s[0] and s[1]? What is the value of result produced by the code? What are you expecting result to be?
You know, every time I tried to win a bar-bet about being able to count to 1000 using my fingers I always got punched out when I reached 4....
-- El Corazon
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do you mean something similar to:
int i;
byte[] s ={ 10, 20 };
int result=0;
for (i = 0; i <= 1; i++)
result += s[i];
though inelegant, I see no error in the above.
On the other hand, your code, ss it stands, doesn't even compile.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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Yes, I mean something like this
int i;
byte[] s ={ 10, 20 };
int result=0;
for (i = 0; i <= 1; i++)
result += s[i];
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Well it works fine on my system and since you have provided no inputs and no output I can only guess what is happening on yours.
Should I turn ON my Code Project Mind Reader Unit?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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Thanks it works now on my system too.
/Mehran
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i created a sevice by using c#.net. and installed it in the client machine.I want the service to be started automatically.(default it is manual).
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this.serviceInstaller1.StartType = System.ServiceProcess.ServiceStartMode.Automatic;
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Hy there, I have a problem. i want to see how winforms made the ResourcePickerDialog (the one that appears when you set an Image at design-time). I found out that the class is in the assembly Microsoft.VisualStudio.Windows.Forms, but i can't seem to find the assembly anywhere, except GAC.
Does anyone know how can I disassemble an assembly installed there? I have reflector and ildasm, but they can't open assemblies from GAC.
Thanks very much.
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hi
i have a panel and timer in my form, in timer.tick event handler, i want to draw a circle and increase pos.X in every timer interval, but when i run app and start animation, it has a flicker and not smoothing animation, also in constructor of my form, i write this code :
this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer, true);
and set Form.DoubleBuffered to true, but still my problem was not solve, how to remove flicker correctly ?
here is all of my code :
int lastX;<br />
int lastY;<br />
bool reverse = false;<br />
Pen pen = new Pen(Brushes.Red, 2);<br />
<br />
public Form1()<br />
{<br />
InitializeComponent();<br />
this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer, true);<br />
} <br />
<br />
private void button1_Click(object sender, EventArgs e)<br />
{ <br />
this.timer1.Start();<br />
}<br />
<br />
private void Paint(Graphics g,int x,int y)<br />
{<br />
g.Clear(Color.White);<br />
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;<br />
g.DrawEllipse(this.pen, new Rectangle(x, y, 100, 100));<br />
}<br />
<br />
private void timer1_Tick(object sender, EventArgs e)<br />
{<br />
if (!this.reverse)<br />
{<br />
if ((this.lastX + 102) <= this.panel1.Width)<br />
{<br />
this.lastX += 2;<br />
}<br />
else<br />
{<br />
this.reverse = true;<br />
}<br />
}<br />
else<br />
{<br />
if (this.lastX >= 0)<br />
{<br />
this.lastX -= 2;<br />
}<br />
else<br />
{<br />
this.reverse = false;<br />
}<br />
}<br />
this.Paint(this.panel1.CreateGraphics(), this.lastX, this.lastY);<br />
}
thanks
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You should really only draw in the OnPaint event (or override), so if you want to redraw the circle then you need to have it drawn in OnPaint and call this.Invalidate(); to update the screen.
My current favourite word is: Bacon!
-SK Genius
Game Programming articles start - here[ ^]-
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i modify my code as follow :
public partial class Form1 : Form<br />
{<br />
int lastX;<br />
int lastY;<br />
bool reverse = false;<br />
Pen pen = new Pen(Brushes.Red, 2);<br />
<br />
public Form1()<br />
{<br />
InitializeComponent();<br />
this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer, true);<br />
} <br />
<br />
private void panel1_Paint(object sender, PaintEventArgs e)<br />
{<br />
this.timer1.Start();<br />
this.panel1.Invalidate();<br />
}<br />
<br />
private void Paint(Graphics g,int x,int y)<br />
{<br />
g.Clear(Color.White);<br />
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;<br />
g.DrawEllipse(this.pen, new Rectangle(x, y, 100, 100));<br />
this.panel1.Invalidate();<br />
}<br />
<br />
private void timer1_Tick(object sender, EventArgs e)<br />
{<br />
if (!this.reverse)<br />
{<br />
if ((this.lastX + 102) <= this.panel1.Width)<br />
{<br />
this.lastX += 2;<br />
}<br />
else<br />
{<br />
this.reverse = true;<br />
}<br />
}<br />
else<br />
{<br />
if (this.lastX >= 0)<br />
{<br />
this.lastX -= 2;<br />
}<br />
else<br />
{<br />
this.reverse = false;<br />
}<br />
}<br />
this.Paint(this.panel1.CreateGraphics(), this.lastX, this.lastY);<br />
} <br />
}
but result was very bad and my problem was not solve, can u wite your suggestion code ?
thanks
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You need to put this.timer1.Start() somewhere else (like, wherever you had it before) and move this.panel1.Invalidate() into your timer.
Then, call your draw method from within the onPaint event:
private void panel1_Paint(object sender, PaintEventArgs e)
{
this.Paint(e.Graphics, this.lastX, this.lastY);
}
Don't forget to remove this.Paint(...) from your timer.
int lastX;
int lastY;
bool reverse = false;
Pen pen = new Pen(Brushes.Red, 2);
public Form1()
{
InitializeComponent();
this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer, true);
this.timer1.Start();
}
private void panel1_Paint(object sender, PaintEventArgs e)
{
this.Paint(e.Graphics, this.lastX, this.lastY);
}
private void Paint(Graphics g,int x,int y)
{
g.Clear(Color.White);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;
g.DrawEllipse(this.pen, new Rectangle(x, y, 100, 100));
this.panel1.Invalidate();
}
private void timer1_Tick(object sender, EventArgs e)
{
if (!this.reverse)
{
if ((this.lastX + 102) <= this.panel1.Width)
{
this.lastX += 2;
}
else
{
this.reverse = true;
}
}
else
{
if (this.lastX >= 0)
{
this.lastX -= 2;
}
else
{
this.reverse = false;
}
}
this.panel1.Invalidate();
}
My current favourite word is: Bacon!
-SK Genius
Game Programming articles start - here[ ^]-
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Thanks again
but do u test your code ?
i run this code, but it's get very bad result :
public partial class Form1 : Form<br />
{<br />
int lastX; int lastY; <br />
bool reverse = false; <br />
Pen pen = new Pen(Brushes.Red, 2); <br />
<br />
public Form1() <br />
{ <br />
InitializeComponent(); <br />
this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer, true); this.timer1.Start();<br />
} <br />
<br />
private void panel1_Paint(object sender, PaintEventArgs e) <br />
{ <br />
this.Paint(e.Graphics, this.lastX, this.lastY);<br />
}<br />
<br />
private void Paint(Graphics g, int x, int y) <br />
{ <br />
g.Clear(Color.White); <br />
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed; <br />
g.DrawEllipse(this.pen, new Rectangle(x, y, 100, 100)); <br />
this.panel1.Invalidate(); <br />
}<br />
<br />
private void timer1_Tick(object sender, EventArgs e) <br />
{ <br />
if (!this.reverse) <br />
{ <br />
if ((this.lastX + 102) <= this.panel1.Width) <br />
{ <br />
this.lastX += 2;<br />
} <br />
else <br />
{ <br />
this.reverse = true;<br />
} <br />
} <br />
else <br />
{ <br />
if (this.lastX >= 0) <br />
{ <br />
this.lastX -= 2; <br />
} <br />
else <br />
{ <br />
this.reverse = false;<br />
} <br />
} this.panel1.Invalidate();<br />
}<br />
}
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... whats the interval on your timer?
My current favourite word is: Bacon!
-SK Genius
Game Programming articles start - here[ ^]-
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Haha, ok, windows timers lose any kind of accuracy at about 1/18th of a second, so setting it to one isn't much better than setting it to 40.
Go download the demo code off of my article here[^] it has some simple code for a MultimediaTimer, which can be accurate to the millisecond (though you probably want to set it to about 16, which is about 60fps).
I recommend reading my couple of articles and stealing the code to make your shape move, and i'm not just advertising, i think you will find them usefull (the code anyway). First article here[^]
My current favourite word is: Bacon!
-SK Genius
Game Programming articles start - here[ ^]-
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Thanks again SK Genius
but when i set Timer.Interval to 100, it's still get me wrong result.
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I think we may have left this.panel1.Invalidate(); in the Paint(graphics, int, int); method, take that out and it should be much better, it still flickered though.
Oh, i got it to stop flickering by taking out g.Clear(Color.White); just set the panels backcolor to white instead.
My current favourite word is: Bacon!
-SK Genius
Game Programming articles start - here[ ^]-
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yes SK Genius
when i remove this.panel1.Invalidate(); from Paint(graphics, int, int); it is much better, but still a little flicker, is there anyway to remove this little flicker ?
and, i very nice to meet , and if you have Yahoo Messnger ID , Add me , i'm very glad to meet u in my messenger list, thanks alot.
My Yahoo Messenger ID : pesar_irooni_1362
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Hi!
I use to draw on an image and then paint the image at the form. The methods to draw an image are very faster. About the enumerations values you set to the form, i dint see anything new (sure make something at background)
best regards,
horacio
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i want to write a program with in c# that when a mouse enter a word in a document (mouseover event) it recognize the word under the mouse and show it on a tooltip. i think that i can write this with ipi instructions. this program suport html,word and pdf documents. can anybody help me please? it is emergency...
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This is the THIRD time you have posted this question, yesterday you got several replies so why post again?
Bob
Ashfield Consultants Ltd
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