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Frequently Asked Questions

Determining is a canvas is a Metafile Canvas?

Question:

How can I determine in code if a canvas is a Metafile Canvas?

Answer:

You can check the return value of the Windows API function
GetDeviceCaps() to check if a given dc is used by a Metafile.

Example:

if (GetDeviceCaps(Canvas.Handle, TECHNOLOGY) and
  DT_METAFILE) = DT_METAFILE then
IsMetafileDc := True;

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