/// <summary>
/// Fills a round rect
/// </summary>
/// <param name="bounds">bound of the round rect</param>
/// <param name="roundX">round on x</param>
/// <param name="roundY">round on y</param>
/// <param name="backColor">backColor</param>
/// <param name="graphics">graphics object</param>
public static void FillRoundRect(Rectangle bounds, int roundX, int roundY, Color backColor, Graphics graphics)
{
IntPtr hdc = graphics.GetHdc();
try
{
int argb = ColorToRGB(backColor);
IntPtr hPen = CreatePen(W32PenStyle.Null, 1, 0);
LogBrush brushData = new LogBrush();
brushData.lbColor = argb;
brushData.lbStyle = W32BrushStyle.Solid;
IntPtr hBrush = CreateBrushIndirect(ref brushData);
IntPtr oldPen = SelectObject(hdc, hPen);
IntPtr oldBrush = SelectObject(hdc, hBrush);
RoundRect(hdc, bounds.X, bounds.Y, bounds.Right, bounds.Bottom, roundX, roundY);
DeleteObject(SelectObject(hdc, oldPen));
DeleteObject(SelectObject(hdc, oldBrush));
}
finally
{
graphics.ReleaseHdc(hdc);
}
}
/// <summary>
/// Draws a round rect
/// </summary>
/// <param name="bounds">bound of the round rect</param>
/// <param name="roundX">round on x</param>
/// <param name="roundY">round on y</param>
/// <param name="pen">pen object</param>
/// <param name="graphics">graphics object</param>
public static void DrawRoundRect(Rectangle bounds, int roundX, int roundY, Pen pen, Graphics graphics)
{
IntPtr hdc = graphics.GetHdc();
try
{
int argb = ColorToRGB(pen.Color);
IntPtr hPen = CreatePen(GetPenStyle(pen.DashStyle), (int)pen.Width, argb);
LogBrush brushData = new LogBrush();
brushData.lbColor = ColorToRGB(Color.Transparent);
brushData.lbStyle = W32BrushStyle.Null;
IntPtr hBrush = CreateBrushIndirect(ref brushData);
IntPtr oldPen = SelectObject(hdc, hPen);
IntPtr oldBrush = SelectObject(hdc, hBrush);
RoundRect(hdc, bounds.X, bounds.Y, bounds.Right, bounds.Bottom, roundX, roundY);
DeleteObject(SelectObject(hdc, oldPen));
DeleteObject(SelectObject(hdc, oldBrush));
}
finally
{
graphics.ReleaseHdc(hdc);
}
}
private static extern IntPtr CreateBrushIndirect(
ref LogBrush lplb // brush information
);
private static extern IntPtr CreateBrushIndirect( ref LogBrush lplb // brush information );
/// <summary>
/// Fills a round rect
/// </summary>
/// <param name="bounds">bound of the round rect</param>
/// <param name="roundX">round on x</param>
/// <param name="roundY">round on y</param>
/// <param name="backColor">backColor</param>
/// <param name="graphics">graphics object</param>
public static void FillRoundRect(Rectangle bounds, int roundX, int roundY, Color backColor, Graphics graphics)
{
IntPtr hdc = graphics.GetHdc();
try
{
int argb = ColorToRGB(backColor);
IntPtr hPen = CreatePen(W32PenStyle.Null, 1, 0);
LogBrush brushData = new LogBrush();
brushData.lbColor = argb;
brushData.lbStyle = W32BrushStyle.Solid;
IntPtr hBrush = CreateBrushIndirect(ref brushData);
IntPtr oldPen = SelectObject(hdc, hPen);
IntPtr oldBrush = SelectObject(hdc, hBrush);
RoundRect(hdc, bounds.X, bounds.Y, bounds.Right, bounds.Bottom, roundX, roundY);
DeleteObject(SelectObject(hdc, oldPen));
DeleteObject(SelectObject(hdc, oldBrush));
}
finally
{
graphics.ReleaseHdc(hdc);
}
}
/// <summary>
/// Draws a round rect
/// </summary>
/// <param name="bounds">bound of the round rect</param>
/// <param name="roundX">round on x</param>
/// <param name="roundY">round on y</param>
/// <param name="pen">pen object</param>
/// <param name="graphics">graphics object</param>
public static void DrawRoundRect(Rectangle bounds, int roundX, int roundY, Pen pen, Graphics graphics)
{
IntPtr hdc = graphics.GetHdc();
try
{
int argb = ColorToRGB(pen.Color);
IntPtr hPen = CreatePen(GetPenStyle(pen.DashStyle), (int)pen.Width, argb);
LogBrush brushData = new LogBrush();
brushData.lbColor = ColorToRGB(Color.Transparent);
brushData.lbStyle = W32BrushStyle.Null;
IntPtr hBrush = CreateBrushIndirect(ref brushData);
IntPtr oldPen = SelectObject(hdc, hPen);
IntPtr oldBrush = SelectObject(hdc, hBrush);
RoundRect(hdc, bounds.X, bounds.Y, bounds.Right, bounds.Bottom, roundX, roundY);
DeleteObject(SelectObject(hdc, oldPen));
DeleteObject(SelectObject(hdc, oldBrush));
}
finally
{
graphics.ReleaseHdc(hdc);
}
}
/// <summary>
/// The CreateBrushIndirect function creates a logical brush that has the specified style, color, and pattern
/// </summary>
/// <param name="plbrush">Pointer to a LOGBRUSH structure that contains information about the brush</param>
/// <returns>If the function succeeds, the return value identifies a logical brush, else null</returns>
/// <remarks>After an application creates a brush by calling CreateBrushIndirect, it can select it into any device context by calling the SelectObject function.
/// </remarks>
public static IntPtr CreateBrushIndirect([In] ref LogBrush plbrush)
{
return(Native.CreateBrushIndirect(ref plbrush));
}
public static extern IntPtr CreateBrushIndirect([In] ref LogBrush plbrush);
private static extern IntPtr CreateBrushIndirect(
ref LogBrush lplb // 笔刷 信息
);
