如何：在 Windows 窗体上绘制垂直文本
下面的代码示例演示如何使用 Graphics
的 DrawString
方法在窗体上绘制竖排文字。
示例
Visual Basic
Visual Basic
Public Sub DrawVerticalString()
Dim formGraphics As System.Drawing.Graphics = Me.CreateGraphics()
Dim drawString As String = "Sample Text"
Dim drawFont As New System.Drawing.Font("Arial", 16)
Dim drawBrush As New _
System.Drawing.SolidBrush(System.Drawing.Color.Black)
Dim x As Single = 150.0
Dim y As Single = 50.0
Dim drawFormat As New System.Drawing.StringFormat
drawFormat.FormatFlags = StringFormatFlags.DirectionVertical
formGraphics.DrawString(drawString, drawFont, drawBrush, _
x, y, drawFormat)
drawFont.Dispose()
drawBrush.Dispose()
formGraphics.Dispose()
End SubC#
public void DrawVerticalString()
{
System.Drawing.Graphics formGraphics = this.CreateGraphics();
string drawString = "Sample Text";
System.Drawing.Font drawFont = new System.Drawing.Font("Arial", 16);
System.Drawing.SolidBrush drawBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Black);
float x = 150.0F;
float y = 50.0F;
System.Drawing.StringFormat drawFormat = new System.Drawing.StringFormat();
drawFormat.FormatFlags = StringFormatFlags.DirectionVertical;
formGraphics.DrawString(drawString, drawFont, drawBrush, x, y, drawFormat);
drawFont.Dispose();
drawBrush.Dispose();
formGraphics.Dispose();
}C++
public:
void DrawVerticalString()
{
System::Drawing::Graphics^ formGraphics = this->CreateGraphics();
String^ drawString = "Sample Text";
System::Drawing::Font^ drawFont =
gcnew System::Drawing::Font("Arial", 16);
System::Drawing::SolidBrush^ drawBrush = gcnew
System::Drawing::SolidBrush(System::Drawing::Color::Black);
float x = 150.0F;
float y = 50.0F;
System::Drawing::StringFormat^ drawFormat =
gcnew System::Drawing::StringFormat();
drawFormat->FormatFlags = StringFormatFlags::DirectionVertical;
formGraphics->DrawString(drawString, drawFont, drawBrush, x,
y, drawFormat);
delete drawFont;
delete drawBrush;
delete formGraphics;
}编译代码
不能在 Load
事件处理程序中调用此方法。如果已调整该窗体的大小或者其他窗体遮蔽了该窗体，则不会重绘所绘制的内容。若要自动重绘内容，应该重写 OnPaint
方法。
可靠编程
以下情况可能会导致异常：
- 未安装 Arial 字体。
不能在 Load
事件处理程序中调用此方法。如果已调整该窗体的大小或者其他窗体遮蔽了该窗体，则不会重绘所绘制的内容。若要自动重绘内容，应该重写 OnPaint
方法。
以下情况可能会导致异常：
- 未安装 Arial 字体。
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