Error "Object reference not set to an instance of an object"

[Microsoft]

When I try this in my code I alwas get an errormessage: "Object reference
not set to an instance of an object"

Dim g As System.Drawing. Graphics
g.DrawString("T est", New Font("Arial", 12, FontStyle.Bold) , Brushes.Black,
0, 0)

Why is this?

Marc

[CJ Taylor]

Dim g as New System.Drawing. Graphics

"Microsoft" <Marc.VanSchand evijl@_nospam_. c-luma.com> wrote in message
news:et******** ******@TK2MSFTN GP10.phx.gbl...

When I try this in my code I alwas get an errormessage: "Object reference
not set to an instance of an object"

Dim g As System.Drawing. Graphics
g.DrawString("T est", New Font("Arial", 12, FontStyle.Bold) , Brushes.Black,
0, 0)

Why is this?

Marc

[CJ Taylor]

Um..

Try to not declare it as an instance... sorry I didn't point that out
earlier...

Just directly call System.Drawing. Grapichics.Draw String

or import System.Drawing. Graphics and just call DrawString.
"Microsoft" <Marc.VanSchand evijl@_nospam_. c-luma.com> wrote in message
news:et******** ******@TK2MSFTN GP10.phx.gbl...

When I try this in my code I alwas get an errormessage: "Object reference
not set to an instance of an object"

Dim g As System.Drawing. Graphics
g.DrawString("T est", New Font("Arial", 12, FontStyle.Bold) , Brushes.Black,
0, 0)

Why is this?

Marc

[Marc]

Another error I'm afraid (with both solutions):

"Reference to a non-shared member requires an object reference."

Marc

"CJ Taylor" <ct*****@morton welding.com> schreef in bericht
news:%2******** ********@TK2MSF TNGP10.phx.gbl. ..

Um..

Try to not declare it as an instance... sorry I didn't point that out
earlier...

Just directly call System.Drawing. Grapichics.Draw String

or import System.Drawing. Graphics and just call DrawString.
"Microsoft" <Marc.VanSchand evijl@_nospam_. c-luma.com> wrote in message
news:et******** ******@TK2MSFTN GP10.phx.gbl...

When I try this in my code I alwas get an errormessage: "Object reference not set to an instance of an object"

Dim g As System.Drawing. Graphics
g.DrawString("T est", New Font("Arial", 12, FontStyle.Bold) , Brushes.Black, 0, 0)

Why is this?

Marc

[CJ Taylor]

Ahhh ok...

You have to get the drawing object from somewhere in your application. it
usually comes from a repaint or such. I forgot about little things like
this (its still early).

Like, a repaint where PaintEventArgs is passed.
"Marc" <Marc.VanSchand evijl@_nospam_. c-luma.com> wrote in message
news:ub******** *****@TK2MSFTNG P10.phx.gbl...

Another error I'm afraid (with both solutions):

"Reference to a non-shared member requires an object reference."

Marc

"CJ Taylor" <ct*****@morton welding.com> schreef in bericht
news:%2******** ********@TK2MSF TNGP10.phx.gbl. ..

Um..

Try to not declare it as an instance... sorry I didn't point that out
earlier...

Just directly call System.Drawing. Grapichics.Draw String

or import System.Drawing. Graphics and just call DrawString.
"Microsoft" <Marc.VanSchand evijl@_nospam_. c-luma.com> wrote in message
news:et******** ******@TK2MSFTN GP10.phx.gbl...

When I try this in my code I alwas get an errormessage: "Object reference not set to an instance of an object"

Dim g As System.Drawing. Graphics
g.DrawString("T est", New Font("Arial", 12, FontStyle.Bold) , Brushes.Black, 0, 0)

Why is this?

Marc

[Herfried K. Wagner [MVP]]

Hello,

"Microsoft" <Marc.VanSchand evijl@_nospam_. c-luma.com> schrieb:

When I try this in my code I alwas get an errormessage: "Object reference not set to an instance of an object"

Dim g As System.Drawing. Graphics
g.DrawString("T est", New Font("Arial", 12, FontStyle.Bold) , Brushes.Black, 0, 0)

You never assign an instance of the Graphics class to the instance
variable g. Use something like this:

\\\
Dim g As Graphics = Me.CreateGraphi cs()
///

or

\\\
Dim bmp As Bitmap = ...
Dim g As Graphics = Graphics.FromIm age(bmp)
///

HTH,
Herfried K. Wagner
--
MVP · VB Classic, VB .NET
http://www.mvps.org/dotnet

[Herfried K. Wagner [MVP]]

Hello,

"CJ Taylor" <ct*****@morton welding.com> schrieb:

Dim g as New System.Drawing. Graphics

Did you try this?

;-)))

Regards,
Herfried K. Wagner
--
MVP · VB Classic, VB .NET
http://www.mvps.org/dotnet

[CJ Taylor]

Hmm... I forgot about that too. . Thanks Herfriend! Always a help from
pulling us out of digging a hole. =)
"Herfried K. Wagner [MVP]" <hi*******@m.ac tivevb.de> wrote in message
news:ue******** ******@TK2MSFTN GP10.phx.gbl...

Hello,

"Microsoft" <Marc.VanSchand evijl@_nospam_. c-luma.com> schrieb:

When I try this in my code I alwas get an errormessage: "Object

reference

not set to an instance of an object"

Dim g As System.Drawing. Graphics
g.DrawString("T est", New Font("Arial", 12, FontStyle.Bold) ,

Brushes.Black,

0, 0)

You never assign an instance of the Graphics class to the instance
variable g. Use something like this:

\\\
Dim g As Graphics = Me.CreateGraphi cs()
///

or

\\\
Dim bmp As Bitmap = ...
Dim g As Graphics = Graphics.FromIm age(bmp)
///

HTH,
Herfried K. Wagner
--
MVP · VB Classic, VB .NET
http://www.mvps.org/dotnet

[Marc]

I'm a little bit further:

Module Procedures
Friend WithEvents PrintDocument1 As New
System.Drawing. Printing.PrintD ocument()
Dim bmp As New Bitmap(1, 1)
Dim g As Graphics = Graphics.FromIm age(bmp)

Sub Print()
g.DrawString("T est", New Font("Arial", 12, FontStyle.Bold) ,
Brushes.Black, 0, 0)
PrintDocument1. Print()
End Sub
End Module

This prints a blank page, not the word "test"???

Marc

"Herfried K. Wagner [MVP]" <hi*******@m.ac tivevb.de> schreef in bericht
news:ue******** ******@TK2MSFTN GP10.phx.gbl...

Hello,

"Microsoft" <Marc.VanSchand evijl@_nospam_. c-luma.com> schrieb:

When I try this in my code I alwas get an errormessage: "Object

reference

not set to an instance of an object"

Dim g As System.Drawing. Graphics
g.DrawString("T est", New Font("Arial", 12, FontStyle.Bold) ,

Brushes.Black,

0, 0)

You never assign an instance of the Graphics class to the instance
variable g. Use something like this:

\\\
Dim g As Graphics = Me.CreateGraphi cs()
///

or

\\\
Dim bmp As Bitmap = ...
Dim g As Graphics = Graphics.FromIm age(bmp)
///

HTH,
Herfried K. Wagner
--
MVP · VB Classic, VB .NET
http://www.mvps.org/dotnet

[Jay B. Harlow [MVP - Outlook]]

Marc,
You are drawing on a bitmap, not on the document!

To draw on the document you need to handle the PrintDocument.P rintPage
event. This event has a PrintPageEventA rgs parameter. The PrintPageEventA rgs
object has a Graphics property. You need to draw on this Graphics object to
have it shown on the document you are attempting to print.

For a reasonable complete sample of using PrintDocument see:
http://msdn.microsoft.com/library/de...et12242002.asp
http://msdn.microsoft.com/library/de...et01282003.asp

Hope this helps
Jay
"Marc" <Marc.VanSchand evijl@_nospam_. c-luma.com> wrote in message
news:uz******** ******@tk2msftn gp13.phx.gbl...

I'm a little bit further:

Module Procedures
Friend WithEvents PrintDocument1 As New
System.Drawing. Printing.PrintD ocument()
Dim bmp As New Bitmap(1, 1)
Dim g As Graphics = Graphics.FromIm age(bmp)

Sub Print()
g.DrawString("T est", New Font("Arial", 12, FontStyle.Bold) ,
Brushes.Black, 0, 0)
PrintDocument1. Print()
End Sub
End Module

This prints a blank page, not the word "test"???

Marc

"Herfried K. Wagner [MVP]" <hi*******@m.ac tivevb.de> schreef in bericht
news:ue******** ******@TK2MSFTN GP10.phx.gbl...

Hello,

"Microsoft" <Marc.VanSchand evijl@_nospam_. c-luma.com> schrieb:

When I try this in my code I alwas get an errormessage: "Object

reference

not set to an instance of an object"

Dim g As System.Drawing. Graphics
g.DrawString("T est", New Font("Arial", 12, FontStyle.Bold) ,

Brushes.Black,

0, 0)

You never assign an instance of the Graphics class to the instance
variable g. Use something like this:

\\\
Dim g As Graphics = Me.CreateGraphi cs()
///

or

\\\
Dim bmp As Bitmap = ...
Dim g As Graphics = Graphics.FromIm age(bmp)
///

HTH,
Herfried K. Wagner
--
MVP · VB Classic, VB .NET
http://www.mvps.org/dotnet