Outlook add-ins - Error accessing Clipboard

  • Thread starter Thread starter Dilum
  • Start date Start date
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Dilum

I've developed an Outlook add-in using VSTO 2005 and Office 2003 and C#. I've
added a new command bar with some buttons.

I need to get text from Clipboard to the message body upon clicking of one
of my buttons. I'm using hte following code.

if (Clipboard.GetDataObject().GetDataPresent(DataFormats.Text))
mailItem.Body =
Clipboard.GetDataObject().GetData(DataFormats.Text).ToString();
else
mailItem.Body = "The clipboad does not contain any text\\links";

But I get the following error.

"Current thread must be set to single thread apartment(STA) mode before OLE
calls can be made. Ensure that your Main funciton has STAThreadAttribute
marked on it."

I tried putting [STAThread] attribute to methods and even created a new
thread and put [STAThread] to its target method. But still the error message
comes.

Is there any way to solve this issue.

Thanking you
Dilum
 
I've had better luck using the Win32 Clipboard API calls from user32, like
GetClipboardData(). I've never had to set STA threading when doing that.
 
Hi Ken,

Thank you very much for your response. I appreciate it very much. I
tried for some sample on the Internet how to do this but I couldnt find a
relevant content.

I just want to get text data from the clipboard to a String variable. Also
how will we able to know the ids of data formats usesd with
"EnumClipboardFormats". I mean, how can we determine the id for text, id for
Html etc so that we can get the appropriate content. Im using C#.

Thank you
Dilum

Ken Slovak - said:
I've had better luck using the Win32 Clipboard API calls from user32, like
GetClipboardData(). I've never had to set STA threading when doing that.




Dilum said:
I've developed an Outlook add-in using VSTO 2005 and Office 2003 and C#.
I've
added a new command bar with some buttons.

I need to get text from Clipboard to the message body upon clicking of one
of my buttons. I'm using hte following code.

if (Clipboard.GetDataObject().GetDataPresent(DataFormats.Text))
mailItem.Body =
Clipboard.GetDataObject().GetData(DataFormats.Text).ToString();
else
mailItem.Body = "The clipboad does not contain any text\\links";

But I get the following error.

"Current thread must be set to single thread apartment(STA) mode before
OLE
calls can be made. Ensure that your Main funciton has STAThreadAttribute
marked on it."

I tried putting [STAThread] attribute to methods and even created a new
thread and put [STAThread] to its target method. But still the error
message
comes.

Is there any way to solve this issue.

Thanking you
Dilum
Click to expand...
Click to expand...
 
Well, I can't post the entire clipboard code I use since it consists of 4
different classes. I did google for clipboard and c# and found a number of
usable code samples however.

To enumerate the formats you'd do something like this:

uint format = 0;
while ((format = EnumClipboardFormats(format)) != 0)
{
string formatName = "0";
if (format > 14)
{
StringBuilder sb = new StringBuilder();
if (GetClipboardFormatName(format, sb, 100) > 0)
{
formatName = sb.ToString();
}
}
}

Less than 14 are the built-in formats.
 
Hi Ken,

I got through it. Thank you very much for your help. I appreciate it
very much.

Thank you
Dilum
 
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