[2005] A Generic Error Occured in GDI.EXE

[Jonny1409]

Hello,

When trying to print a page in one of our applications, we are getting the above error message.

The code the line is breaking on is :

Friend WithEvents zg1 As ZedGraph.ZedGraphControl
Dim g As Graphics = zg1.CreateGraphics
Dim ibitMap As New Bitmap(zg1.ClientSize.Width, zg1.ClientSize.Height, g)
ibitMap.Save(DocServerPath & EmployeeNumber & "\d" & CStr(SummaryID) & ".bmp", System.Drawing.Imaging.ImageFormat.Bmp)

I didn't write this app so I don't really know much about it, other than to say that the code appears to be saving a graph as a bitmap, using this zedgraph control.

I know it's a longshot, but can anyone shed any light on how I can get to the bottom of this ?

Thanks.

[Bulldog]

Does this occur when printing a single page?, or are you printing many pages and it fails after a few have come out ok?

Just a long shot but the reason I ask is that I have seen this generic GDI error occurring when there are too many graphics handles or objects. This typically means that the app is not disposing of graphics objects correctly.

As a quick check, run up the task manager, on the processes tab, select User Objects, GDI Objects and Handles (using View -> Select Columns). When the app is running see if any of these three are constantly increasing with the apps activity. All have an upper limit, I cant remember what they are but when exceeded, you get that message.

[Jonny1409]

Hi Bulldog,

Cheers for getting back to me on this one.

No I can't even print a single page, it's literally when I press the print button, it falls on the line mentioned above:

ibitMap.Save(DocServerPath & EmployeeNumber & "\d" & CStr(SummaryID) & ".bmp", System.Drawing.Imaging.ImageFormat.Bmp)

The DocServerPath is populated fine as is the EmployeeNumber, but for some reason it just won't save the graph as a bitmap.

I believe you are right in as much as the form does seem to have quite a bit on it, so this could be causing the problem - however everything on there is required.

I've done as you suggest regarding task manager and the app had the following when started :

Handles - 490
User Objects - 212
GDI - 237

All were fluctuating but only around these marks whenever I did anything in the app.

[Bulldog]

Do you get this problem with all formats?, so if you change the output format to Jpeg or Gif, does that work? or the same result?

e.g.

ibitMap.Save(DocServerPath & EmployeeNumber & "\d" & CStr(SummaryID) & ".gif", System.Drawing.Imaging.ImageFormat.Gif)

[Jonny1409]

Hi Bulldog,

No I'm afriad the same thing happens if I choose any other format (jpg, gif etc)