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A Simple VB.NET Freehand Drawing method

, 26 Jul 2003
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The code uses a System.Drawing.Drawing2D.GraphicsPath method to follow the users mouse movements. The path is then painted in the control.

Sample Image - Freehand_Drawing.jpg


This is a simple freehand drawing example for VB.NET. I was frustrated at not finding a simple way to draw on a control or a picture in VB.NET. What was a simple task in VB6, seemed to take hundreds of lines of code in .NET sample code. Hopefully this will give other VB.NET programmers ideas on a simple implementation of this type of code.

The code uses a System.Drawing.Drawing2D.GraphicsPath method to follow the users mouse movements. The path is then painted in the control.


Ideas for this code came from the Microsoft "Scribble" sample code, Christian Graus's excellent article on a C++ code called "Doodle" and the Microsoft website.

Note that this is a VERY pedantic freehand drawing code, so be kind in you comments. Smile | :)


  • Written July, 2003


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About the Author

John Buettner

United States United States
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Comments and Discussions

QuestionVery Nice and Simple PinmemberMember 40329031-Dec-13 9:38 
GeneralVery Nice PinmemberAlan Burkhart18-Sep-12 14:46 
Suggestionthank you Pinmembermedosalah974-Jul-12 12:15 
QuestionThank you so much Pinmembermohammat suyanto20-Jun-12 20:36 
AnswerThanks PinmemberPraveen288628-May-12 21:15 
QuestionCan you do this for a web page? Pinmemberhaherrera9-Sep-11 7:05 
QuestionThank you PinmemberSergey Chepurin4-Jul-11 3:04 
GeneralThanks John this is awesome Pinmemberaltenh3-Dec-10 8:19 
GeneralThanks John Pinmemberrahulxlash27-Aug-09 21:29 
Questionhow to add pen width use text box and user change color use botton PinmemberEPPYZA8-Oct-08 10:07 
GeneralSystem.OutOfMemoryException occurred in System.Drawing.dll (converted 2005) Pinmemberyalenap1-Apr-08 13:23 
GeneralRe: System.OutOfMemoryException occurred in System.Drawing.dll (converted 2005) Pinmemberjkkghjhjgh25-Mar-10 19:12 
QuestionHow I erase ? Pinmemberdemon.kiler7-Jun-07 11:44 
AnswerRe: How I erase ? Pinmemberamit122721-Jun-07 19:39 
GeneralRe: How I erase ? PinmemberRichard_Faulkner21-Aug-07 13:54 
GeneralPaint above /on activexcontrol? [modified] Pinmemberturbovulc31-Jul-06 5:03 
QuestionHow can I save content of PictureBox Pinmemberdragondrache19-Oct-04 5:55 
AnswerRe: How can I save content of PictureBox PinmemberNatBest23-Mar-06 18:53 
AnswerRe: How can I save content of PictureBox PinmemberThaSaint4-Dec-08 3:56 
GeneralClear PictureBox1 Pinmemberdragondrache18-Oct-04 7:50 
GeneralRe: Clear PictureBox1 Pinmemberloay454528-Apr-06 18:32 
Generaldrawing color PinmemberPythorian5-Nov-03 10:51 
AnswerRe: drawing color PinmemberMartin Houstrup19-Apr-09 7:04 
GeneralRe: drawing color PinmembershankarBangalore27-Apr-10 2:43 
GeneralRe: drawing color PinmemberMartin Houstrup27-Apr-10 7:51 

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