Tag Archives: draw

Let the user zoom on a picture and draw in C#

Posted on March 8, 2019 by RodStephens

The example Let the user zoom on a picture in C# allows the user to zoom in on a picture and draw on it. Unfortunately, it doesn’t handle the drawing properly when the image is scaled. It doesn’t scale the … Continue reading →

Posted in drawing, files, graphics, serialization, transformations | Tagged auto save, autosave, C#, C# programming, colors, dash, deserialization, deserialize, dot, dotted, draw, draw curves, draw polyline, drawing, example, example program, files, graphics, line style, line thickness, load, Polyline, redo, restore, save, scale, scribble, serialization, serialize, toolbar, tools, transform, transformation, undo, zoom | 1 Comment

Let the user zoom on a picture in C#

Posted on March 31, 2015 by Rod Stephens

Important: This example does not handle new drawings correctly if you have scaled the image. Read this one to learn how it works and then see the new post Let the user zoom on a picture and draw in C#. … Continue reading →

Posted in drawing, files, graphics, serialization | Tagged auto save, autosave, C#, C# programming, colors, dash, deserialization, deserialize, dot, dotted, draw, draw curves, draw polyline, drawing, example, example program, files, graphics, line style, line thickness, load, Polyline, redo, restore, save, scale, scribble, serialization, serialize, toolbar, tools, undo, Windows Forms programming, zoom | 1 Comment

Provide autosave in C#

Posted on March 30, 2015 by RodStephens

This example extends the scribble example (most recently described in the post Provide undo and redo in C#) so it provides an auto-save feature. The following code creates the name of the program’s auto-save file. // The auto-save file name. … Continue reading →

Posted in drawing, files, graphics, serialization | Tagged auto save, autosave, C#, C# programming, colors, dash, deserialization, deserialize, dot, dotted, draw, draw curves, draw polyline, drawing, example, example program, files, graphics, line style, line thickness, load, Polyline, redo, restore, save, scribble, serialization, serialize, toolbar, tools, undo, Windows Forms programming | 1 Comment

Provide undo and redo in C#

Posted on March 27, 2015 by RodStephens

This example adds undo and redo features to the example Save and restore pictures drawn by the user in C#. It’s not terribly hard, but it is long so I’ll break it into sections to make it easier to understand. … Continue reading →

Posted in drawing, graphics, serialization | Tagged C#, C# programming, colors, dash, deserialization, deserialize, dot, dotted, draw, draw curves, draw polyline, drawing, example, example program, graphics, line style, line thickness, load, Polyline, redo, restore, save, scribble, serialization, serialize, toolbar, tools, undo, Windows Forms programming | 1 Comment

Save and restore pictures drawn by the user in C#

Posted on March 26, 2015 by Rod Stephens

The example Let the user scribble with different line styles in C# explains how to let the user draw curves with different colors, line thicknesses, and dash patterns. This example adds the ability to save and load pictures drawn by … Continue reading →

Posted in drawing, graphics, serialization | Tagged C#, C# programming, colors, dash, deserialization, deserialize, dot, dotted, draw, draw curves, draw polyline, drawing, example, example program, graphics, line style, line thickness, load, Polyline, restore, save, scribble, serialization, serialize, toolbar, tools, Windows Forms programming | 3 Comments

Let the user scribble with different line styles in C#

Posted on March 25, 2015 by Rod Stephens

The example Let the user scribble on a PictureBox in C# explains how to let the user draw polylines, but the program only draws thin black curves. This example adds color, line thickness, and line styles such as dashed or … Continue reading →

Posted in drawing, graphics | Tagged C#, C# programming, colors, dash, dot, dotted, draw, draw curves, draw polyline, drawing, example, example program, graphics, line style, line thickness, Polyline, scribble, toolbar, tools, Windows Forms programming | 1 Comment

Let the user scribble on a PictureBox in C#

Posted on March 24, 2015 by Rod Stephens

The Graphics class provides a DrawLines method that draws a series of connected lines, which is sometimes called a polyline. This program lets the user create a series of polylines. The program stores the points that make up a polyline … Continue reading →