ImageGear for C and C++ on Windows v20.3 - Updated
IG_ARTX_arrow_head_get
API Reference Guide > ArtX Component API Reference > ArtX Component Objects Reference > HIG_ARTX_ARROW > IG_ARTX_arrow_head_get

This function queries attributes of annotation arrow head.

Declaration:

 
Copy Code 
AT_ERRCOUNT ACCUAPI IG_ARTX_arrow_head_get(
        HIG_ARTX_ARROW hMark,
        LPAT_ARTX_ARROW_HEAD lpHead,
        LPAT_UINT pnDataSize
);

Arguments:

hMark HIG_ARTX_ARROW Annotation handle.
lpHead LPAT_ARTX_ARROW_HEAD Pointer to storage for the arrow head attributes.
pnDataSize LPAT_UINT Pointer to the variable that on input contains the size of the buffer specified by the lpHead parameter. On output, it contains the number of bytes copied to the lpHead buffer. If an arrow annotation has an arrow head, then its attributes are copied into the output buffer lpHead and the number of bytes copied is placed into pnDataSize. If lpHead is NULL and pnDataSize is not NULL, then on output pnDataSize contains the size of AT_ARTX_ARROW_HEAD structure. If lpHead is not NULL and pnDataSize is not NULL and there is no arrow head, then on output pnDataSize contains zero.

Return Value:

Error count.

Supported Raster Image Formats:

This function does not process image pixels.

Remarks:

See AT_ARTX_ARROW_HEAD structure for additional info.

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