请教mobile里如何画饼图的问题！
我的开发环境是VC2005+Widows mobile pro6 SDK，我仔细看了一下GDI函数，发现没有CreateEllipticRgn或者Pie之类的函数可以画饼图，我就用Ellipse画了一个椭圆，然后用直线切成饼图，但是现在不知道怎么给每个封闭区域的饼图填充颜色，或者说不知道怎么创建HRGN区域，请高手指点，不胜感激！！！ --------------------编程问答-------------------- mark --------------------编程问答-------------------- 效果图：
--------------------编程问答-------------------- 楼主看看这个帖子：
/// <summary>
/// 画扇形
/// </summary>
/// <param name="x">保存写文字的扇形中心X坐标</param>
/// <param name="y">保存写文字的扇形中心Y坐标</param>
/// <param name="LORR">保存是否在左还是在右</param>
/// <param name="OnOrOut">保存字在图上还画出</param>
/// <param name="temp">扇形的起始角度</param>
/// <param name="Ps">椭圆的点集</param>
/// <param name="Pt">拄体的点集</param>
/// <param name="cAngle">扇形的角度大小</param>
/// <param name="falg">标识有是否超过了450</param>
/// <param name="x1">扇形的椭圆的点X坐标</param>
/// <param name="y1">扇形的椭圆的点Y坐标</param>
/// <param name="tempX">扇形起始的椭圆的点X坐标</param>
/// <param name="tempY">扇形起始的椭圆的点Y坐标</param>
/// <param name="i">第几个扇形</param>
/// <param name="PointNumber">扇形起始的椭圆的点X坐标</param>
private void DrawSector(double[] x, double[] y, int[] LORR, double[] cAngles, bool[] OnOrOut, ref double temp, Point[] Ps,
ref Point[] Pt, double cAngle, ref int x1, ref int y1, ref int tempX, ref int tempY,
int i, int PointNumber, ref int falg)
{
double j = 0;
int k = 0, m = 0;
int cA = 0; // 每个扇形椭圆上的点
int MaxNubmer = Convert.ToInt32(180 / Addangle); // 椭圆上最多的点
for (j = temp, k = 0; j <= (temp + cAngle); k++)
{
Ps[k] = new Point();
//计算椭圆上的点
x1 = Convert.ToInt32(a * System.Math.Sin(j / 360.0 * 2 * System.Math.PI) + dOx);
y1 = Convert.ToInt32(b * System.Math.Cos(j / 360.0 * 2 * System.Math.PI) + dOy);
Ps[k].X = x1;
Ps[k].Y = y1;
if (k == (PointNumber / 2))
{
OnOrOut[i] = (Math.PI * b * (cAngle / 360)) > (fFontSize * 4 / 3);//求的孤长来判断是否字在图上还画出来
x[i] = (x1 + dOx) / 2;
y[i] = (y1 + dOy) / 2;
if (j % 360 >= 180 && j % 360 < 270)
{
LORR[i] = 1;
if (OnOrOut[i])//在图上文本向上移动
y[i] -= fFontSize;//在一项限文本向上移动
}
if (j % 360 >= 270 && j % 360 < 360)
LORR[i] = 1;
if (j % 360 >= 0 && j % 360 < 90)
LORR[i] = 2;
if (j % 360 >= 90 && j % 360 < 180)
{
LORR[i] = 2;
if (OnOrOut[i])//在图上文本向上移动
y[i] -= fFontSize;//在二项限文本向上移动
}
cAngles[i] = j;
}
if (cAngle == 0)
{
x[i] = (x1 + dOx) / 2;
y[i] = (y1 + dOy) / 2;
if (temp % 360 >= 180 && temp % 360 < 270)
LORR[i] = 1;
if (temp % 360 >= 270 && temp % 360 < 360)
LORR[i] = 1;
if (temp % 360 >= 0 && temp % 360 < 90)
LORR[i] = 2;
if (temp % 360 >= 90 && temp % 360 < 180)
LORR[i] = 2;
cAngles[i] = j;
}
if (cAngle > 0 && ((j < 450 && j >= 270) || (j < 90 && falg == 1)))
{
if (j == temp || cA == 0)
{
if (j < 90 && temp + cAngle > 90) // 一种小于90度情况
cA = Convert.ToInt32((90 - j) / Addangle);
else if (temp + cAngle > 450)
cA = Convert.ToInt32((450 - j) / Addangle);
else
cA = Convert.ToInt32((temp + cAngle - j) / Addangle);
if (cA > MaxNubmer)
cA = MaxNubmer;
Pt = new Point[2 * cA];
m = 0;
}
if (j >= 270 && temp <= 270)
{
Pt[m].X = x1;
Pt[m].Y = y1;
Pt[2 * cA - m - 1].X = x1;
Pt[2 * cA - m - 1].Y = y1 + height;
m++;
}
else
{
Pt[m].X = x1;
Pt[m].Y = y1;
Pt[2 * cA - m - 1].X = x1;
Pt[2 * cA - m - 1].Y = y1 + height;
m++;
}
}
j = j + Addangle;
}
Ps[PointNumber] = new Point();
Ps[PointNumber].X = (int)dOx;
Ps[PointNumber].Y = (int)dOy;
FillPolygon(Brush, Ps, DrawGraphicsP);
if (cA > 0)
{
if (cColors.Length == 2 * dDataNumber.Length)
Brush = new SolidBrush(cColors[i % (cColors.Length / 2) + (cColors.Length / 2)]);
else
{
int[] rgb = new int[3];
rgb[0] = Convert.ToInt32(cColors[i].R);
rgb[1] = Convert.ToInt32(cColors[i].G);
rgb[2] = Convert.ToInt32(cColors[i].B);
float[] hls = new float[3];
RgbToHsl(rgb[0], rgb[1], rgb[2], ref hls[0], ref hls[1], ref hls[2]);
hls[1] -= 40f;
HslToRgb(ref rgb[0], ref rgb[1], ref rgb[2], hls[0], hls[1], hls[2]);
Brush = new SolidBrush(Color.FromArgb(rgb[0], rgb[1], rgb[2]));
}
FillPolygon(Brush, Pt, DrawGraphicsP);
}
temp = j - Addangle;
if (temp >= 360)
{
falg = 1;
temp %= 360;
}
DisposeAll();
}
http://topic.csdn.net/u/20091012/13/34D54C31-FA0D-4AE5-BB5F-6E9B21D96AB7.html --------------------编程问答-------------------- 我试一下，关键是VC能不能使用，还有就是如何填充颜色？
补充：移动开发 , Windows Phone
