C# DrawString 怎么设置字间距和行间距

2013-09-09 10:58:44 2.1k 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

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我自己写了一个方法

//自动换行文字
private Image drawString(Image image,string text,RectangleF rectF,Font font,Brush brush) {
if (text != string.Empty && text != "" && text != null && image!=null) {
Graphics g = Graphics.FromImage(image);
g.SmoothingMode = SmoothingMode.HighQuality;
g.CompositingQuality = CompositingQuality.HighQuality;
g.InterpolationMode = InterpolationMode.High;
g.DrawString(text, font, brush, rectF);
g.Dispose();
}
return image;
}

怎么才能设置字间距和行间距？

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切换为时间正序

lytao163 2016-03-29

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引用 5 楼 h420943302 的回复:

[quote=引用 4 楼 hwenycocodq520 的回复:]


[DllImport("gdi32.dll")]
public static extern int SetTextCharacterExtra(IntPtr hdc, int nCharExtra);

private Image drawString(Image image,string text,RectangleF rectF,Font font,Brush brush,int nCharExtra) 
{
    if (text != string.Empty && text != "" && text != null && image!=null) 
    {
       Graphics g = Graphics.FromImage(image);
       IntPtr hdc = g.GetHdc();
       SetTextCharacterExtra(hdc, nCharExtra);
       g.ReleaseHdc(hdc);
       g.SmoothingMode = SmoothingMode.HighQuality;
       g.CompositingQuality = CompositingQuality.HighQuality;
       g.InterpolationMode = InterpolationMode.High;
       g.DrawString(text, font, brush, rectF);
       g.Dispose();
   }            
   return image;
}

不知道为什么没效果[/quote] 因为上面的方法是.net 2.0 .net 3.5 以上请参考下面链接里的方法。 http://www.cnblogs.com/geovindu/p/4315410.html

h420943302 2013-09-09

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引用 4 楼 hwenycocodq520 的回复:


[DllImport("gdi32.dll")]
public static extern int SetTextCharacterExtra(IntPtr hdc, int nCharExtra);

private Image drawString(Image image,string text,RectangleF rectF,Font font,Brush brush,int nCharExtra) 
{
    if (text != string.Empty && text != "" && text != null && image!=null) 
    {
       Graphics g = Graphics.FromImage(image);
       IntPtr hdc = g.GetHdc();
       SetTextCharacterExtra(hdc, nCharExtra);
       g.ReleaseHdc(hdc);
       g.SmoothingMode = SmoothingMode.HighQuality;
       g.CompositingQuality = CompositingQuality.HighQuality;
       g.InterpolationMode = InterpolationMode.High;
       g.DrawString(text, font, brush, rectF);
       g.Dispose();
   }            
   return image;
}

不知道为什么没效果

智商余额不足 2013-09-09

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[DllImport("gdi32.dll")]
public static extern int SetTextCharacterExtra(IntPtr hdc, int nCharExtra);

private Image drawString(Image image,string text,RectangleF rectF,Font font,Brush brush,int nCharExtra) 
{
    if (text != string.Empty && text != "" && text != null && image!=null) 
    {
       Graphics g = Graphics.FromImage(image);
       IntPtr hdc = g.GetHdc();
       SetTextCharacterExtra(hdc, nCharExtra);
       g.ReleaseHdc(hdc);
       g.SmoothingMode = SmoothingMode.HighQuality;
       g.CompositingQuality = CompositingQuality.HighQuality;
       g.InterpolationMode = InterpolationMode.High;
       g.DrawString(text, font, brush, rectF);
       g.Dispose();
   }            
   return image;
}

h420943302 2013-09-09

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引用 2 楼 hwenycocodq520 的回复:


//gdi32.dll
原型：int SetTextCharacterExtra(HDC hdc, int nCharExtra);

能嵌入我的方法里吗小白一个你这样写我不懂

智商余额不足 2013-09-09

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//gdi32.dll
原型：int SetTextCharacterExtra(HDC hdc, int nCharExtra);

智商余额不足 2013-09-09

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//设置字符间隔
[DllImport("gdi32.dll")]
public static extern int SetTextCharacterExtra(IntPtr hdc, int nCharExtra);

C# DrawString 怎么设置字间距和行间距

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