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G.DrawString("", drawFont, drawBrush, P);                    

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private void GM_Paint(object sender, PaintEventArgs e)
{
    e.Graphics.SmoothingMode = SmoothingMode.HighQuality;
    Rectangle Show = new Rectangle(GM.Location, GM.Size);

    //usw....                    

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G.DrawString(s, drawFont, drawBrush, Pointer p);                    

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private void GM_Paint(object sender, PaintEventArgs e)
{
  try
  {
    // ...
  }
  catch (Exception ex)
  {
    // ... (hier mal Haltepunkt setzen)
  }
}                    

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                   String drawString = "Sample Text";

                    // Create font and brush.
                    Font drawFont = new Font("Arial", 16);
                    SolidBrush drawBrush = new SolidBrush(Color.Black);

                    // Create point for upper-left corner of drawing.
                    float x = 150.0F;
                    float y = 50.0F;

                    // Set format of string.
                    StringFormat drawFormat = new StringFormat();
                    drawFormat.FormatFlags = StringFormatFlags.DirectionVertical;

                    // Draw string to screen.
                    e.Graphics.DrawString(drawString, drawFont, drawBrush, x, y, drawFormat);