Can someone reproduce the following error?
I'm using the module at the bottom of my post to owner draw a menu
items, I call the module from a form like this:
Private Sub mnuOpen_DrawIte m(ByVal sender As Object, ByVal e As
System.Windows. Forms.DrawItemE ventArgs) Handles mnuOpen.DrawIte m
Dim Ic As New Icon(Applicatio n.StartupPath & "\101_72.ic o")
DrawItems(e, mnuOpen, Ic)
End Sub
Private Sub mnuOpen_Measure Item(ByVal sender As Object, ByVal e As
System.Windows. Forms.MeasureIt emEventArgs) Handles mnuOpen.Measure Item
MeasureItems(e, mnuOpen)
End Sub
It al works just fine but if I try to debug and step through it, or if
I type something wrong so that I get an error message at runtime. The
next time I try to run it I keep getting this error message:
An unhandled exception of type 'System.OutOfMe moryException' occurred
in system.drawing. dll
Additional information: Out of memory.
and then right clicking (even on the desktop) doesn't work like it
should and I have to reboot my pc for everything to return to normal.
Is there something wrong in the module. Or isn't it my fault?
thanks a lot
'Module om icoontjes aan een menu toe te voegen
Imports System
Imports System.Componen tModel
Imports System.Drawing
Imports System.Drawing. Drawing2D
Imports System.Drawing. Text
Imports System.Windows. Forms
Module IconsMenuMain
Dim m_Font As New Font("Arial", 8)
Sub MeasureItems(By Val EvMeasureItem As
System.Windows. Forms.MeasureIt emEventArgs, ByVal Mi As MenuItem)
Dim sf As StringFormat = New StringFormat()
sf.HotkeyPrefix = HotkeyPrefix.Sh ow
sf.SetTabStops( 60, New Single() {0})
EvMeasureItem.I temHeight = 22
EvMeasureItem.I temWidth =
CInt(EvMeasureI tem.Graphics.Me asureString(Get RealText(Mi), _
m_Font,
10000, sf).Width) + 30
sf.Dispose()
sf = Nothing
End Sub
Sub DrawItems(ByVal EvDrawItems As
System.Windows. Forms.DrawItemE ventArgs, ByVal Mi As MenuItem, ByVal
m_Icon As Icon)
Dim br As Brush
Dim br2 As Brush
Dim fDisposeBrush As Boolean
Dim rand As Pen
Dim rcBk As Rectangle = EvDrawItems.Bou nds
rcBk.Height -= 1
rcBk.Width -= 1
If CBool(EvDrawIte ms.State And DrawItemState.S elected) Then
br = New LinearGradientB rush(rcBk, Color.MediumPur ple,
Color.YellowGre en, 0)
fDisposeBrush = True
rand = New Pen(Color.DarkB lue, 1)
EvDrawItems.Gra phics.FillRecta ngle(br, rcBk)
EvDrawItems.Gra phics.DrawRecta ngle(rand, rcBk)
Else
br = SystemBrushes.C ontrol
br2 = New SolidBrush(Colo r.WhiteSmoke)
rand = System.Drawing. SystemPens.Cont rol
EvDrawItems.Gra phics.DrawRecta ngle(rand, rcBk)
rcBk.X += 24
rcBk.Width -= 23
rcBk.Y -= 1
rcBk.Height += 2
EvDrawItems.Gra phics.FillRecta ngle(br2, rcBk)
rcBk.X = 0
rcBk.Width = 24
EvDrawItems.Gra phics.FillRecta ngle(br, rcBk)
br2.Dispose()
End If
'Dim rcIcon As New Rectangle(EvDra wItems.Bounds.L eft + 2,
EvDrawItems.Bou nds.Top + 2, m_Icon.Width, m_Icon.Height)
'EvDrawItems.Gr aphics.ExcludeC lip(rcIcon)
If fDisposeBrush Then br.Dispose()
br = Nothing
Dim sf As StringFormat = New StringFormat()
sf.HotkeyPrefix = HotkeyPrefix.Sh ow
sf.SetTabStops( 60, New Single() {0})
If Mi.Enabled Then
br = New SolidBrush(EvDr awItems.ForeCol or)
Else
br = New SolidBrush(Colo r.Gray)
End If
EvDrawItems.Gra phics.DrawStrin g(GetRealText(M i), m_Font, br, _
EvDrawItems.Bou nds.Left + 25,
_
EvDrawItems.Bou nds.Top + 2,
sf)
br.Dispose()
br = Nothing
sf.Dispose()
sf = Nothing
If Not m_Icon Is Nothing Then
If Not Mi.Checked Then
EvDrawItems.Gra phics.DrawIcon( m_Icon,
EvDrawItems.Bou nds.Left + 2, _
EvDrawItems.Bou nds.Top +
2)
Else
EvDrawItems.Gra phics.DrawIcon( m_Icon,
EvDrawItems.Bou nds.Left + 2, _
EvDrawItems.Bou nds.Top +
2)
End If
End If
End Sub
Function GetRealText(ByV al Mi As MenuItem) As String
Dim s As String = Mi.Text
If Mi.ShowShortcut And Mi.Shortcut <> Shortcut.None Then
Dim k As Keys = CType(Mi.Shortc ut, Keys)
s = s & Convert.ToChar( 9) & _
TypeDescriptor. GetConverter(Ge tType(Keys)).Co nvertToString(k )
End If
Return s
End Function
End Module
2  2640 
Good Evening Piedro,
Your problem is common to programmers. It is known as memory leak. You are
not handling your errors with try catch statements and when that happens your
computer still thinks it is running that program and will not release the
memory unless you reboot.
My suggestion is to put a try catch such as the one below this way when a
runtime error occurs it will release memory and you can at least debug
without running out of memory.
Try
'potential code that is having errors
Catch ex As Exception
MsgBox(ex.Messa ge)
End
End Try
Rachel
"Piedro" wrote: Can someone reproduce the following error?
I'm using the module at the bottom of my post to owner draw a menu
items, I call the module from a form like this:
Private Sub mnuOpen_DrawIte m(ByVal sender As Object, ByVal e As
System.Windows. Forms.DrawItemE ventArgs) Handles mnuOpen.DrawIte m
Dim Ic As New Icon(Applicatio n.StartupPath & "\101_72.ic o")
DrawItems(e, mnuOpen, Ic)
End Sub
Private Sub mnuOpen_Measure Item(ByVal sender As Object, ByVal e As
System.Windows. Forms.MeasureIt emEventArgs) Handles mnuOpen.Measure Item
MeasureItems(e, mnuOpen)
End Sub
It al works just fine but if I try to debug and step through it, or if
I type something wrong so that I get an error message at runtime. The
next time I try to run it I keep getting this error message:
An unhandled exception of type 'System.OutOfMe moryException' occurred
in system.drawing. dll
Additional information: Out of memory.
and then right clicking (even on the desktop) doesn't work like it
should and I have to reboot my pc for everything to return to normal.
Is there something wrong in the module. Or isn't it my fault?
thanks a lot
'Module om icoontjes aan een menu toe te voegen
Imports System
Imports System.Componen tModel
Imports System.Drawing
Imports System.Drawing. Drawing2D
Imports System.Drawing. Text
Imports System.Windows. Forms
Module IconsMenuMain
Dim m_Font As New Font("Arial", 8)
Sub MeasureItems(By Val EvMeasureItem As
System.Windows. Forms.MeasureIt emEventArgs, ByVal Mi As MenuItem)
Dim sf As StringFormat = New StringFormat()
sf.HotkeyPrefix = HotkeyPrefix.Sh ow
sf.SetTabStops( 60, New Single() {0})
EvMeasureItem.I temHeight = 22
EvMeasureItem.I temWidth =
CInt(EvMeasureI tem.Graphics.Me asureString(Get RealText(Mi), _
m_Font,
10000, sf).Width) + 30
sf.Dispose()
sf = Nothing
End Sub
Sub DrawItems(ByVal EvDrawItems As
System.Windows. Forms.DrawItemE ventArgs, ByVal Mi As MenuItem, ByVal
m_Icon As Icon)
Dim br As Brush
Dim br2 As Brush
Dim fDisposeBrush As Boolean
Dim rand As Pen
Dim rcBk As Rectangle = EvDrawItems.Bou nds
rcBk.Height -= 1
rcBk.Width -= 1
If CBool(EvDrawIte ms.State And DrawItemState.S elected) Then
br = New LinearGradientB rush(rcBk, Color.MediumPur ple,
Color.YellowGre en, 0)
fDisposeBrush = True
rand = New Pen(Color.DarkB lue, 1)
EvDrawItems.Gra phics.FillRecta ngle(br, rcBk)
EvDrawItems.Gra phics.DrawRecta ngle(rand, rcBk)
Else
br = SystemBrushes.C ontrol
br2 = New SolidBrush(Colo r.WhiteSmoke)
rand = System.Drawing. SystemPens.Cont rol
EvDrawItems.Gra phics.DrawRecta ngle(rand, rcBk)
rcBk.X += 24
rcBk.Width -= 23
rcBk.Y -= 1
rcBk.Height += 2
EvDrawItems.Gra phics.FillRecta ngle(br2, rcBk)
rcBk.X = 0
rcBk.Width = 24
EvDrawItems.Gra phics.FillRecta ngle(br, rcBk)
br2.Dispose()
End If
'Dim rcIcon As New Rectangle(EvDra wItems.Bounds.L eft + 2,
EvDrawItems.Bou nds.Top + 2, m_Icon.Width, m_Icon.Height)
'EvDrawItems.Gr aphics.ExcludeC lip(rcIcon)
If fDisposeBrush Then br.Dispose()
br = Nothing
Dim sf As StringFormat = New StringFormat()
sf.HotkeyPrefix = HotkeyPrefix.Sh ow
sf.SetTabStops( 60, New Single() {0})
If Mi.Enabled Then
br = New SolidBrush(EvDr awItems.ForeCol or)
Else
br = New SolidBrush(Colo r.Gray)
End If
EvDrawItems.Gra phics.DrawStrin g(GetRealText(M i), m_Font, br, _
EvDrawItems.Bou nds.Left + 25,
_
EvDrawItems.Bou nds.Top + 2,
sf)
br.Dispose()
br = Nothing
sf.Dispose()
sf = Nothing
If Not m_Icon Is Nothing Then
If Not Mi.Checked Then
EvDrawItems.Gra phics.DrawIcon( m_Icon,
EvDrawItems.Bou nds.Left + 2, _
EvDrawItems.Bou nds.Top +
2)
Else
EvDrawItems.Gra phics.DrawIcon( m_Icon,
EvDrawItems.Bou nds.Left + 2, _
EvDrawItems.Bou nds.Top +
2)
End If
End If
End Sub
Function GetRealText(ByV al Mi As MenuItem) As String
Dim s As String = Mi.Text
If Mi.ShowShortcut And Mi.Shortcut <> Shortcut.None Then
Dim k As Keys = CType(Mi.Shortc ut, Keys)
s = s & Convert.ToChar( 9) & _
TypeDescriptor. GetConverter(Ge tType(Keys)).Co nvertToString(k )
End If
Return s
End Function
End Module
Hi Rachel,
thnx for your reply, I know about memory leaks but the problem even
kicks in when there isn't an error in the prog, but when I just step
through it by placing a break in the code and then step through it,
that's why I think it's a strange error.
Grtz Peter
Rachel <Ra****@discuss ions.microsoft. com> wrote in message news:<BD******* *************** ************@mi crosoft.com>... Good Evening Piedro,
Your problem is common to programmers. It is known as memory leak. You are
not handling your errors with try catch statements and when that happens your
computer still thinks it is running that program and will not release the
memory unless you reboot.
My suggestion is to put a try catch such as the one below this way when a
runtime error occurs it will release memory and you can at least debug
without running out of memory.
Try
'potential code that is having errors
Catch ex As Exception
MsgBox(ex.Messa ge)
End
End Try
Rachel
"Piedro" wrote:
Can someone reproduce the following error?
I'm using the module at the bottom of my post to owner draw a menu
items, I call the module from a form like this:
Private Sub mnuOpen_DrawIte m(ByVal sender As Object, ByVal e As
System.Windows. Forms.DrawItemE ventArgs) Handles mnuOpen.DrawIte m
Dim Ic As New Icon(Applicatio n.StartupPath & "\101_72.ic o")
DrawItems(e, mnuOpen, Ic)
End Sub
Private Sub mnuOpen_Measure Item(ByVal sender As Object, ByVal e As
System.Windows. Forms.MeasureIt emEventArgs) Handles mnuOpen.Measure Item
MeasureItems(e, mnuOpen)
End Sub
It al works just fine but if I try to debug and step through it, or if
I type something wrong so that I get an error message at runtime. The
next time I try to run it I keep getting this error message:
An unhandled exception of type 'System.OutOfMe moryException' occurred
in system.drawing. dll
Additional information: Out of memory.
and then right clicking (even on the desktop) doesn't work like it
should and I have to reboot my pc for everything to return to normal.
Is there something wrong in the module. Or isn't it my fault?
thanks a lot
'Module om icoontjes aan een menu toe te voegen
Imports System
Imports System.Componen tModel
Imports System.Drawing
Imports System.Drawing. Drawing2D
Imports System.Drawing. Text
Imports System.Windows. Forms
Module IconsMenuMain
Dim m_Font As New Font("Arial", 8)
Sub MeasureItems(By Val EvMeasureItem As
System.Windows. Forms.MeasureIt emEventArgs, ByVal Mi As MenuItem)
Dim sf As StringFormat = New StringFormat()
sf.HotkeyPrefix = HotkeyPrefix.Sh ow
sf.SetTabStops( 60, New Single() {0})
EvMeasureItem.I temHeight = 22
EvMeasureItem.I temWidth =
CInt(EvMeasureI tem.Graphics.Me asureString(Get RealText(Mi), _
m_Font,
10000, sf).Width) + 30
sf.Dispose()
sf = Nothing
End Sub
Sub DrawItems(ByVal EvDrawItems As
System.Windows. Forms.DrawItemE ventArgs, ByVal Mi As MenuItem, ByVal
m_Icon As Icon)
Dim br As Brush
Dim br2 As Brush
Dim fDisposeBrush As Boolean
Dim rand As Pen
Dim rcBk As Rectangle = EvDrawItems.Bou nds
rcBk.Height -= 1
rcBk.Width -= 1
If CBool(EvDrawIte ms.State And DrawItemState.S elected) Then
br = New LinearGradientB rush(rcBk, Color.MediumPur ple,
Color.YellowGre en, 0)
fDisposeBrush = True
rand = New Pen(Color.DarkB lue, 1)
EvDrawItems.Gra phics.FillRecta ngle(br, rcBk)
EvDrawItems.Gra phics.DrawRecta ngle(rand, rcBk)
Else
br = SystemBrushes.C ontrol
br2 = New SolidBrush(Colo r.WhiteSmoke)
rand = System.Drawing. SystemPens.Cont rol
EvDrawItems.Gra phics.DrawRecta ngle(rand, rcBk)
rcBk.X += 24
rcBk.Width -= 23
rcBk.Y -= 1
rcBk.Height += 2
EvDrawItems.Gra phics.FillRecta ngle(br2, rcBk)
rcBk.X = 0
rcBk.Width = 24
EvDrawItems.Gra phics.FillRecta ngle(br, rcBk)
br2.Dispose()
End If
'Dim rcIcon As New Rectangle(EvDra wItems.Bounds.L eft + 2,
EvDrawItems.Bou nds.Top + 2, m_Icon.Width, m_Icon.Height)
'EvDrawItems.Gr aphics.ExcludeC lip(rcIcon)
If fDisposeBrush Then br.Dispose()
br = Nothing
Dim sf As StringFormat = New StringFormat()
sf.HotkeyPrefix = HotkeyPrefix.Sh ow
sf.SetTabStops( 60, New Single() {0})
If Mi.Enabled Then
br = New SolidBrush(EvDr awItems.ForeCol or)
Else
br = New SolidBrush(Colo r.Gray)
End If
EvDrawItems.Gra phics.DrawStrin g(GetRealText(M i), m_Font, br, _
EvDrawItems.Bou nds.Left + 25,
_
EvDrawItems.Bou nds.Top + 2,
sf)
br.Dispose()
br = Nothing
sf.Dispose()
sf = Nothing
If Not m_Icon Is Nothing Then
If Not Mi.Checked Then
EvDrawItems.Gra phics.DrawIcon( m_Icon,
EvDrawItems.Bou nds.Left + 2, _
EvDrawItems.Bou nds.Top +
2)
Else
EvDrawItems.Gra phics.DrawIcon( m_Icon,
EvDrawItems.Bou nds.Left + 2, _
EvDrawItems.Bou nds.Top +
2)
End If
End If
End Sub
Function GetRealText(ByV al Mi As MenuItem) As String
Dim s As String = Mi.Text
If Mi.ShowShortcut And Mi.Shortcut <> Shortcut.None Then
Dim k As Keys = CType(Mi.Shortc ut, Keys)
s = s & Convert.ToChar( 9) & _
TypeDescriptor. GetConverter(Ge tType(Keys)).Co nvertToString(k )
End If
Return s
End Function
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