本文整理汇总了C#中CGContext.SetGrayFillColor方法的典型用法代码示例。如果您正苦于以下问题：C# CGContext.SetGrayFillColor方法的具体用法？C# CGContext.SetGrayFillColor怎么用？C# CGContext.SetGrayFillColor使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CGContext的用法示例。
在下文中一共展示了CGContext.SetGrayFillColor方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: DrawInContext
public override void DrawInContext(CGContext context)
{
// Start with a background whose color we don't use in the demo
context.SetGrayFillColor (0.2f, 1);
context.FillRect (Bounds);
// We want to just lay down the background without any blending so we use the Copy mode rather than Normal
context.SetBlendMode(CGBlendMode.Copy);
// Draw a rect with the "background" color - this is the "Destination" for the blending formulas
context.SetFillColorWithColor (DestinationColor.CGColor);
context.FillRect(new RectangleF (110, 20, 100, 100));
// Set up our blend mode
context.SetBlendMode (BlendMode);
// And draw a rect with the "foreground" color - this is the "Source" for the blending formulas
context.SetFillColorWithColor (SourceColor.CGColor);
context.FillRect (new RectangleF (60, 45, 200, 50));
}示例2: FillRoundedRect
void FillRoundedRect (RectangleF rect, CGContext context)
{
float radius = 10.0f;
context.BeginPath ();
context.SetGrayFillColor (0.0f, this.Opacity);
context.MoveTo (rect.GetMinX () + radius, rect.GetMinY ());
context.AddArc (rect.GetMaxX () - radius, rect.GetMinY () + radius, radius, (float)(3 * Math.PI / 2), 0f, false);
context.AddArc (rect.GetMaxX () - radius, rect.GetMaxY () - radius, radius, 0, (float)(Math.PI / 2), false);
context.AddArc (rect.GetMinX () + radius, rect.GetMaxY () - radius, radius, (float)(Math.PI / 2), (float)Math.PI, false);
context.AddArc (rect.GetMinX () + radius, rect.GetMinY () + radius, radius, (float)Math.PI, (float)(3 * Math.PI / 2), false);
context.ClosePath ();
context.FillPath ();
}