DOKK / manpages / debian 10 / libemf-doc / EMF_ENHMETAHEADER.3.en
EMF::ENHMETAHEADER(3) libemf EMF::ENHMETAHEADER(3)

EMF::ENHMETAHEADER - Enhanced Metafile Header Record.

#include <libemf.h>

Inherits EMF::METARECORD, and ENHMETAHEADER.


ENHMETAHEADER (LPCWSTR description=0)
~ENHMETAHEADER ()
bool serialize (DATASTREAM ds)
bool unserialize (DATASTREAM ds)
int size (void) const
void execute (METAFILEDEVICECONTEXT *source, HDC dc) const

Enhanced Metafile Header Record.

The ENHMETAHEADER serves two purposes in this library: it keeps track of the size of the metafile (in physical dimensions) and number of records and handles that are ultimately to be written to the disk file. It is also a real record that must be written out.

Parameters:

description an optional description argument is a UNICODE-like string with the following format: 'some text\0some more text\0\0'. The W32 interface defines UNICODE characters to be two-byte (unsigned short strings). The constructor makes a copy of the argument.

Destructor deletes memory allocated for description.

Execute this record in the context of the given device context.

Parameters:

source the device context from which this record is taken.
dc device context for execute.

Implements EMF::METARECORD.

Serializing the header is an example of an extended record.

Parameters:

ds Metafile datastream.

Implements EMF::METARECORD.

References EMF::WCHARSTR::WCHARSTR().

Internally computed size of this record.

Implements EMF::METARECORD.

Referenced by EMF::METAFILEDEVICECONTEXT::nextHandle().

Read a header record from the datastream.

Referenced by EMF::EMRCREATEPALETTE::execute().

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Fri Nov 2 2018 Version 1.0.9