Drawing problems!

aspirinum

Can drawing only be done in the Paint event? What should I do if I write a function to draw on a graphical interface or form?

lb1514

Don't know how to answer!
when&where&how!

yin_gsy

string text2 = "Draw text in a rectangle by passing a RectF to the DrawString method.";
using (Font font2 = new Font ("Arial", 12, FontStyle.Bold, GraphicsUnit.Point))
{
    Rectangle rect2 = new Rectangle (30, 10, 100, 122);

    // Specify the text is wrapped.
    TextFormatFlags flags = TextFormatFlags.WordBreak;
    TextRenderer.DrawText (e.Graphics, text2, font2, rect2, Color.Blue, flags);
    e.Graphics.DrawRectangle (Pens.Black, Rectangle.Round (rect2));

}

393736105

You can use the current form to create Graphics for drawing:
Graphics g = this.CreateGraphics ();
Graphics g = Graphics.FromHwnd (this.Handle);

You can also use an Image to create Graphics drawings:
Graphics g = Graphics.FromImage (image);

mad_diablo

Yes in Paint event, other events are also available.

aspirinum

Maybe I'm not too explicit.
What I want to know is how to make g Fouge a specific drawing object. I draw in the paint event. I want to write a function call form, such as drawing in picturebox or other containers.
393736105's answer should be possible, thank you

dmwhero

Write function

First define a picture

A picturebox calls this picture

Use picturebox to generate drawing objects. Draw on the picture. After drawing, refresh the picturebox and the picture will be displayed.

And there is no need to redraw the form anymore

weirui1231

Help top!