convert system.color to integer ? (C#)

[dynamic_sysop]

convert system.color to integer ?

hi does anyone know if its possible to convert a colour to integer? i can put some code together and run my app , but when i click a button to test it, it errors.
i have managed to get it to show a value ( rgb i think ) like this :

            int c=Convert.ToInt32(Color.AliceBlue.ToArgb());
			MessageBox.Show(c.ToString());

but i want to be able to get the int value of the actuall colour not the rgb:-\

 

[dynamic_sysop]

sok ive sussed it

           int c=Convert.ToInt32(Color.Red.R.ToString());
			MessageBox.Show(c.ToString());
// gets the r value , g for the g value etc...

 

[aewarnick]

Not sure if this is the best way to do this but the string representation of ToArgb() is what you want.
ToArgb().ToString()

 

[aewarnick]

We posted at the same time. Here is one of my methods as an example:

public static int[] GetArgbValues(Color c)
{
	int[]Argb= {(int)c.R, (int)c.G, (int)c.B};
	return Argb;
}

As you can see, the Color.R ext. are bytes and can be implicitly converted to int. You dont need an explicit conversion.

 

[dynamic_sysop]

i seem to get an error with that, cannot convert int[] to int. so i tried messing with it a bit, but Argb seems to be returning something funny lol
System.Int32[] thats what Argb is showing as.

 

[aewarnick]

It does not return a Color.FromArgb. It returns an integer array with 3 elements. Three integer values that you can plug into a call to Color.FromArgb()
Ex:

Color g= Color.FromArgb(c[0], c[1], c[2]);

 

[dynamic_sysop]

ok if i elaberate a little with what im making maybe a suggestion on how to change the colours.
i have adapted my vb6 coding for changing progressbar colours ( front and back ) to C#

		[DllImport("User32.Dll")]
        public static extern int SendMessage(int hwnd,int wMsg,int wParam,int lParam);
        
		public const int PBM_SETBKCOLOR = 0x2001;
        public const int PBM_SETBARCOLOR = 0x409;

		private void button4_Click(object sender, System.EventArgs e)
		{
			int j=this.progressBar1.Handle.ToInt32();
			//get handle for progressbar
			SendMessage(j,PBM_SETBKCOLOR,0,10);
			//set backcolor of progressbar
			SendMessage(j,PBM_SETBARCOLOR,0,255);
			//set forecolor of progressbar
		}

in that case the 10 sets the backcolor to black , the 255 sets the forecolor to red.
i want to be able to allow a change of colour where the user can actually tell what colour they are setting rather than a number that means nothing to them.

 

[Volte]

Use the ColorTranslator.ToOle() function.

MessageBox.Show(ColorTranslator.ToOle(Color.FromArgb(255,255,0)).ToString());

shows

65535

 

[dynamic_sysop]

cheers volt that inspired me

using System.Runtime.InteropServices;
/// top of form ^^^
///
///
		[DllImport("User32.Dll")]
        public static extern int SendMessage(int hwnd,int wMsg,int wParam,int lParam);
        
		public const int PBM_SETBKCOLOR = 0x2001;
        public const int PBM_SETBARCOLOR = 0x409;
//// in design area ( below ) ^^^^
////
		public void SetProgressBackColor(Color c)
		{/// set the back color of the bar
        int a=Convert.ToInt32(c.R.ToString());
		int b=Convert.ToInt32(c.G.ToString());
		int d=Convert.ToInt32(c.B.ToString());
        int tot=Convert.ToInt32(ColorTranslator.ToOle(Color.FromArgb(a,b,d)).ToString());
		int j=this.progressBar1.Handle.ToInt32();
        SendMessage(j,PBM_SETBKCOLOR,0,tot);
		}

		public void SetProgressForeColor(Color c)
		{/// set the forecolor of the bar
			int a=Convert.ToInt32(c.R.ToString());
			int b=Convert.ToInt32(c.G.ToString());
			int d=Convert.ToInt32(c.B.ToString());
			int tot=Convert.ToInt32(ColorTranslator.ToOle(Color.FromArgb(a,b,d)).ToString());
			int j=this.progressBar1.Handle.ToInt32();
			SendMessage(j,PBM_SETBARCOLOR,0,tot);
		}
		private void button4_Click(object sender, System.EventArgs e)
		{
			SetProgressBackColor(System.Drawing.Color.BlueViolet);
            SetProgressForeColor(System.Drawing.Color.Red);
		}

thanks again for the help.