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AcDbDatabase::setRetainOriginalThumbnailBitmap

C++

void setRetainOriginalThumbnailBitmap(
    bool retain
);

Description

This function will set the database to use retain as the flag indicating whether or not to retain the existing thumbnail bitmap during saves.

Note This function is intended for RealDWG developers. Preview thumbnail behavior reflects what the host application must do to generate a preview.

ObjectARX developers should not call this function because AutoCAD generates all preview thumbnails.

Three behaviors are possible:

  1. Save the database without a thumbnail bitmap.
  1. Save the database while retaining the pre-existing thumbnail bitmap.
  1. Set a new thumbnail bitmap, to save with the dwg.

The behavior depends on two things: whether there is a thumbnail bitmap, and whether the retainOriginal behavior has been requested.

Parameters

Parameters Description
retain Input boolean indicating whether or not to retain the existing thumbnail bitmap if there is one

Links

AcDbDatabase Class

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