[2005] A Generic Error Occured in GDI.EXE

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 :

Code:

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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.

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.

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:

Code:

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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.

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.

Code:

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

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Hi Bulldog,

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