GDI 文本失真放大，欢迎高手指教，分数不够可以开新贴追加，如果有例子，可以给例子也行，欢迎大家都参与讨论，
1、我要的是放大后，字号不变，放大失真的效果，我用C#代码没有实现
2、我一个朋友用C++实现了，希望大家帮我转换成C#的
3、效果图如下：

4、C++代码
void CFontDlg::Test(int n)
{

CWnd * wnd = GetDlgItem(IDC_STATIC_FONT);
if(wnd)
{
CDC *pdc = wnd->GetDC();
CDC dcMemery;

//dcMemory -> Graphics
dcMemery.CreateCompatibleDC( (CDC*)pdc );

//pbitmap -> Image
CBitmap * pbitmap = new CBitmap;

pbitmap->CreateCompatibleBitmap( pdc, 20, 20);
//SelectObject -> FromImage
dcMemery.SelectObject(pbitmap);

//Graphics.DrawString
dcMemery.FloodFill(0, 0,RGB(25,3,25) );
dcMemery.TextOut(3,3,"A");

//Streth
pdc->StretchBlt( 0, 0, 20*n, 20*n,
&dcMemery, 0, 0, 20, 20, SRCCOPY );

ReleaseDC(pdc);
delete pbitmap;
}
}

void CFontDlg::OnSelchangeCombo1()
{
int n = m_Type.GetCurSel();
m_nSize = n+2;
CWnd * wnd = GetDlgItem(IDC_STATIC_FONT);
wnd->Invalidate(TRUE);
}
5、C#代码：



[解决办法]
Graphic.DrawImageUnscaled()类似BitBlt()
Graphic.DrawImage()类似StretchBlt()

C# code

    public partial class Form1 : Form    {        Bitmap memBmp = new Bitmap(150, 50);        public Form1()        {            // 准备一个字符串图形             //            using (Graphics g = Graphics.FromImage(memBmp))            {                g.DrawString("Hello world", new Font("Times New Roman", 16), Brushes.Black, 10, 10);            }        }        protected override void OnPaint(PaintEventArgs e)        {            using (Graphics g = e.Graphics)            {                // 原样画图                //                g.DrawImageUnscaled(memBmp, 0, 0);                // 放大，采用最近点取样，突出失真的效果                //                g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;                       //<---                g.DrawImage(memBmp, new Rectangle(0, 50, 600, 200), new Rectangle(0, 0, 150, 50), GraphicsUnit.Pixel);  //<---            }        }    }
[解决办法]
C# code
public Bitmap CreateFontBmp(Font font, string text, float zoom)        {            if (string.IsNullOrEmpty(text))                return null;            Size size = TextRenderer.MeasureText(text, font);            Rectangle rect = new Rectangle(0,0,size.Width,size.Height);            Bitmap bmp = new Bitmap(size.Width, size.Height);            Graphics graphics = Graphics.FromImage(bmp);            TextRenderer.DrawText(                graphics,                text,                font,                rect,                SystemColors.ControlText);            if (zoom > 0 && zoom != 1)            {                int width = (int)Math.Ceiling(size.Width * zoom);                int height = (int)Math.Ceiling(size.Height * zoom);                Rectangle tmpRect = new Rectangle(0,0,width,height);                Bitmap tmpBmp = new Bitmap(width, height);                graphics = Graphics.FromImage(tmpBmp);                graphics.DrawImage(                    bmp,                    tmpRect,                    rect,                    GraphicsUnit.Pixel);                graphics.Flush();                graphics.Dispose();                bmp.Dispose();                return tmpBmp;            }            graphics.Flush();            graphics.Dispose();            return bmp;        }
[解决办法]
参考:

C# code
Graphics g = this.pictureBox1.CreateGraphics();            g.SmoothingMode = SmoothingMode.HighQuality;            GraphicsPath path = new GraphicsPath();                       StringFormat strformat = new StringFormat();            strformat.Alignment = StringAlignment.Center;            strformat.LineAlignment = StringAlignment.Center;            path.AddString("轩", new FontFamily("黑体"), (int)this.Font.Style, 400f, new Point(250,250), strformat);            g.FillPath(new SolidBrush(Color.Red), path);