Writing Output Data17

These functions are used by format-specific graphics exporters to write output data.

GraphicsExportWriteOutputData

Writes output image data.



 
pascal ComponentResult GraphicsExportWriteOutputData ( GraphicsExportComponent ci,

                                         void *dataPtr,

                                         unsigned long dataSize);

ci: Specifies the component instance that identifies your connection to the graphics exporter component.
dataPtr: A pointer to a memory block containing the data.
dataSize: The number of bytes of image data to write.

GraphicsExportSetOutputMark

Seeks to the specified file position.



 
pascal ComponentResult GraphicsExportSetOutputMark (GraphicsExportComponent ci,

                                         unsigned long mark);

ci: Specifies the component instance that identifies your connection to the graphics exporter component.
mark: The new file position, specified as a byte offset from the beginning of the output data reference.

GraphicsExportGetOutputMark

Returns the current file position.



 
pascal ComponentResult GraphicsExportGetOutputMark (GraphicsExportComponent ci,

                                         unsigned long *mark);

ci: Specifies the component instance that identifies your connection to the graphics exporter component.
mark: Receives the current file position, as a byte offset from the beginning of the output data reference.

Not all output data types support this feature.

GraphicsExportReadOutputData

Reads output image data.



 
pascal ComponentResult GraphicsExportReadOutputData (GraphicsExportComponent ci,

                                         void *dataPtr,

                                         unsigned long dataOffset,

                                         unsigned long dataSize);

ci: Specifies the component instance that identifies your connection to the graphics exporter component.
dataPtr: A pointer to a memory block to receive the data.
dataOffset: The offset of the image data within the data reference. The function begins reading image data from this offset.
dataSize: The number of bytes of image data to read.

Not all output data types support this feature.

dataSize