カラー定数での色見本及びR・G・B設定値 VBレスキュー(花ちゃん)
Assembly: System.Drawing.Primitives.dll Represents an ARGB (alpha, red, green, blue) color. C# [System.ComponentModel.TypeConverter ("System.Drawing.ColorConverter, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")] public readonly struct Color : IEquatable
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Definition Namespace: System. Drawing Assembly: System.Drawing.Primitives.dll Gets the 32-bit ARGB value of this Color structure. C# public int ToArgb (); Returns Int32 The 32-bit ARGB value of this Color. Examples
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Definition Namespace: System. Windows. Media Assembly: PresentationCore.dll Creates a new Color structure by using the specified sRGB color channel values. C# public static System.Windows.Media.Color FromRgb (byte r, byte g, byte b); Parameters r Byte The sRGB red channel, R, of the new color. g Byte The sRGB green channel, G, of the new color. b
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Definition Namespace: System. Drawing Assembly: System.Drawing.Primitives.dll Each property of the SystemColors class is a Color structure that is the color of a Windows display element. C# public static class SystemColors Inheritance Object SystemColors Examples
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Low Alpha values increase transparency (and "lighten" the result ), High Alphas have the opposite effect. Code: ' Darker appearance. Button4.BackColor = Color.FromArgb (200, 117, 123, 56) ' Lighter appearance. Button4.BackColor = Color.FromArgb (20, 117, 123, 56) | Post Points: 5. vbCity is a community of VB and .NET developers joined together.
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You'll notice you can also specify the object type in the settings. On my user options form I allow the user to choose their color option with the colorpicker dialog and then I store that color in my settings as a "color". The colorpicker allows the user to just select colors rather than attempt to manipulate rgb values. 0.
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Forum Rules. Here's some code I wrote that you can place in a Module and use in any graphics program that needs to convert RGB to HSV or HSV to RGB. Public Sub RGBtoHSV (ByVal R As Byte, ByVal G As Byte, ByVal B As Byte, _ ByRef H As Byte, ByRef S As Byte, ByRef V As Byte) Dim MinVal As Byte Dim MaxVal As Byte Dim Chroma As Byte Dim TempH As.
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The primary RGB and CMYK colors (red, green, blue, yellow, cyan, magenta, black, and white) exist at each corner of the cube: The spectrum of full intensity colors (that is, the rainbow) is represented by following the outside edges of the cube from red, to yellow, to green and around to magenta.
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VB Dim Red, I, RGBValue, MyObject Red = RGB (255, 0, 0) ' Return the value for Red. I = 75 ' Initialize offset. RGBValue = RGB (I, 64 + I, 128 + I) ' Same as RGB (75, 139, 203). MyObject.Color = RGB (255, 0, 0) ' Set the Color property of MyObject to Red. Color constants Functions (Visual Basic for Applications) Support and feedback
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7 Answers Sorted by: 3 System.Drawing.Color is not the sort of thing to which you would assign a value. Wherever you're looking to set the color, I think you want something more like SomeObject.Color = System.Drawing.Color.FromName ("Lime")
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Description Returns a system color code that can be assigned to object color properties Rules at a Glance The RGB color value represents the relative intensity of the red, green, and blue components of a pixel that produces a specific color on the display. The RGB function assumes any argument greater than 255 to be 255.
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The problem is that it isn't done via Color - you need to handle the value as BGR sets - i.e. each integer is composed of the colors as 00BBGGRR, so you left-shift blue by 16, green by 8, and use red "as is". My VB sucks, but in C#, to add purple:
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In the algorithms used by the above implementations, the Brightness is always set to the value of the RGB color with the highest value. However, this is obviously not true of the implementation in the .NET Framework. If you plug in a few examples, you can fairly quickly determine that the Brightness is, instead, computed as (Min (R,G,B) + Max.
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Color Name: Color Red Green Blue; AliceBlue : 240: 248: 255: AntiqueWhite : 250: 235: 215: Aqua : 0: 255: 255: AquaMarine : 127: 255: 212: Azure : 240: 255: 255.
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9,361 18 74 86 Add a comment 3 Answers Sorted by: 7 The Color struct has .A, .R, .G and .B fields. For example: Dim color As Color = Color.Olive Dim r As Integer = color.R Dim g As Integer = color.G Dim b As Integer = color.B Share Improve this answer Follow edited Apr 29, 2011 at 22:39 answered Apr 29, 2011 at 22:27 MusiGenesis 74.4k 40 193 335 1
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4 Answers Sorted by: 18 Me.BackColor = Color.FromArgb (255,255,255).replacing the 255 on each parameter with the value you need. e.g. Me.BackColor = Color.FromArgb (HScrollBar1.Value,HScrollBar2.Value,HScrollBar3.Value) Share Improve this answer Follow answered Jul 14, 2010 at 17:12 George Johnston 31.8k 28 128 172