ImageGear for C and C++ on Windows v19.4 - Updated
IG_ISIS_tag_get_affect_count
API Reference Guide > ISIS Component API Reference > ISIS Component Functions Reference > Tag Functions > IG_ISIS_tag_get_affect_count

Get the number of tags affected by the specified reference tag.

Declaration:

 
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AT_ERRCOUNT ACCUAPI IG_ISIS_tag_get_affect_count(
        HISISDRV hDriver,
        AT_MODE nTag,
        LPWORD lpwCount
);

Arguments:

Name Type Description
hDriver HISISDRV The handle to the driver.
nTag AT_MODE Specifies the reference tag.
lpwCount LPWORD Points to the number of tags affected by nTag.

Return Value:

Returns the number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.

Supported Raster Image Formats:

This function does not process image pixels.

Remarks:

The IG_ISIS_tag_get_affect_count function retrieves a count of the number of tags whose value or range of valid values is affected by the value of the specified reference tag.

Use IG_ISIS_tag_get_affect_count to determine how many tags are affected by nTag. This is important when you are setting several tags in sequence. If you set a tag that affects other tags you have already set, the values of those affected tags could change unexpectedly.

See Also

IG_ISIS_tag_get_affect