| 类型定义 | |
| Type ENHMETAHEADER ' 88 Bytes iType As Long nSize As Long rclBounds As RECTL rclFrame As RECTL dSignature As Long nVersion As Long nBytes As Long nRecords As Long nHandles As Integer sReserved As Integer nDescription As Long offDescription As Long nPalEntries As Long szlDevice As SIZEL szlMillimeters As SIZEL End Type |
|
| 说明 | |
This structure is always the first record in an enhanced metafile, it contains information on the enhanced metafile data. |
|
| 字段表 | |
| 字段 | 类型与说明 |
| iType | Long，Record type. Must be set to EMR_HEADER |
| nSize | Long，Size of this structure |
| rclBounds | RECTL，Dimensions, in device units, of the smallest rectangle that can be drawn around the picture stored in the metafile. Supplied by the GDI. |
| rclFrame | RECTL，Dimensions, in 0.01 millimeter units, of a rectangle that surrounds the picture stored in the metafile. Must be supplied by the application that creates the metafile. |
| dSignature | Long，Signature of the metafile. Must be set to ENHMETA_SIGNATURE. |
| nVersion | Long，Metafile version. The current version value is &H10000&. |
| nBytes | Long，Size of the enhanced metafile |
| nRecords | Long，Number of records in the enhanced metafile |
| nHandles | Integer，Number of handles in the enhanced-metafile handle table. |
| sReserved | Integer，Reserved. Set to zero. |
| nDescription | Long，Number of characters in the array containing the description of the enhanced metafile. Zero if a description is not available |
| offDescription | Long，Offset from the beginning of the ENHMETAHEADER structure to an array containing a description for the enhanced metafile. |
| nPalEntries | Long，Number of entries in the enhanced metafile's palette. |
| szlDevice | SIZEL，Resolution of the reference device, in pixels |
| szlMillimeters | SIZEL，Resolution of the reference device, in millimeters. |