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GetMetaFileBitsEx info  Overview  Group

The GetMetaFileBitsEx function retrieves the contents of a Windows-format metafile and copies them into the specified buffer.

This function is provided for compatibility with earlier versions of Microsoft Windows. Win32-based applications should use the GetEnhMetaFileBits function.

UINT GetMetaFileBitsEx(

    HMETAFILE hmf,

// handle of metafile

    UINT nSize,

// size of metafile, in bytes

    LPVOID lpvData 

// address of metafile data

   );

Parameters

hmf
Identifies a Windows-format metafile.
nSize
Specifies the size, in bytes, of the buffer to receive the data.
lpvData
Points to the buffer to receive the metafile data. The buffer must be sufficiently large to contain the data. If lpvData is NULL, the function returns the number of bytes required to hold the data.

Return Values

If the function succeeds and the buffer pointer is NULL, the return value is the number of bytes required for the buffer; if the function succeeds and the buffer pointer is a valid pointer, the return value is the number of bytes copied.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

After the Windows-metafile bits are retrieved, they can be used to create a memory-based metafile by calling the SetMetaFileBitsEx function.

The GetMetaFileBitsEx function does not invalidate the metafile handle. An application must delete this handle by calling the DeleteMetaFile function.

A Windows-format metafile does not support the new curve, path, and transformation functions, such as PolyBezier, BeginPath, and SetWorldTransform. Applications that use these new functions and use metafiles to store pictures created by these functions should use the enhanced format metafile functions.

To convert a Windows-format metafile into an enhanced-format metafile, use the SetWinMetaFileBits function.

See Also

BeginPath, DeleteMetaFile, GetEnhMetaFileBits, PolyBezier, SetMetaFileBitsEx, SetWinMetaFileBits, SetWorldTransform 

 

See also:


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