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A Simple VB.NET Freehand Drawing method

, 26 Jul 2003 142K 3.2K 31
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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 Pin
Member 40329031-Dec-13 8:38
memberMember 40329031-Dec-13 8:38 
GeneralVery Nice Pin
Alan Burkhart18-Sep-12 13:46
memberAlan Burkhart18-Sep-12 13:46 
Suggestionthank you Pin
medosalah974-Jul-12 11:15
membermedosalah974-Jul-12 11:15 
QuestionThank you so much Pin
mohammat suyanto20-Jun-12 19:36
membermohammat suyanto20-Jun-12 19:36 
AnswerThanks Pin
Praveen288628-May-12 20:15
memberPraveen288628-May-12 20:15 
QuestionCan you do this for a web page? Pin
haherrera9-Sep-11 6:05
memberhaherrera9-Sep-11 6:05 
QuestionThank you Pin
Sergey Chepurin4-Jul-11 2:04
memberSergey Chepurin4-Jul-11 2:04 
GeneralThanks John this is awesome Pin
altenh3-Dec-10 7:19
memberaltenh3-Dec-10 7:19 
GeneralThanks John Pin
rahulxlash27-Aug-09 20:29
memberrahulxlash27-Aug-09 20:29 
Questionhow to add pen width use text box and user change color use botton Pin
EPPYZA8-Oct-08 9:07
memberEPPYZA8-Oct-08 9:07 
GeneralSystem.OutOfMemoryException occurred in System.Drawing.dll (converted 2005) Pin
yalenap1-Apr-08 12:23
memberyalenap1-Apr-08 12:23 
GeneralRe: System.OutOfMemoryException occurred in System.Drawing.dll (converted 2005) Pin
jkkghjhjgh25-Mar-10 18:12
memberjkkghjhjgh25-Mar-10 18:12 
QuestionHow I erase ? Pin
demon.kiler7-Jun-07 10:44
memberdemon.kiler7-Jun-07 10:44 
AnswerRe: How I erase ? Pin
amit122721-Jun-07 18:39
memberamit122721-Jun-07 18:39 
GeneralRe: How I erase ? Pin
Richard_Faulkner21-Aug-07 12:54
memberRichard_Faulkner21-Aug-07 12:54 
GeneralPaint above /on activexcontrol? [modified] Pin
turbovulc31-Jul-06 4:03
memberturbovulc31-Jul-06 4:03 
QuestionHow can I save content of PictureBox Pin
dragondrache19-Oct-04 4:55
memberdragondrache19-Oct-04 4:55 
AnswerRe: How can I save content of PictureBox Pin
NatBest23-Mar-06 17:53
memberNatBest23-Mar-06 17:53 
AnswerRe: How can I save content of PictureBox Pin
ThaSaint4-Dec-08 2:56
memberThaSaint4-Dec-08 2:56 
GeneralClear PictureBox1 Pin
dragondrache18-Oct-04 6:50
memberdragondrache18-Oct-04 6:50 
GeneralRe: Clear PictureBox1 Pin
loay454528-Apr-06 17:32
memberloay454528-Apr-06 17:32 
Generaldrawing color Pin
Pythorian5-Nov-03 9:51
memberPythorian5-Nov-03 9:51 
AnswerRe: drawing color Pin
Martin Houstrup19-Apr-09 6:04
memberMartin Houstrup19-Apr-09 6:04 
GeneralRe: drawing color Pin
shankarBangalore27-Apr-10 1:43
membershankarBangalore27-Apr-10 1:43 
GeneralRe: drawing color Pin
Martin Houstrup27-Apr-10 6:51
memberMartin Houstrup27-Apr-10 6:51 

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