ImageGear for C and C++ on Windows v19.0
IG_TWAIN_cap_is_valid
| API Reference Guide > TWAIN Component API Reference > TWAIN Component Functions Reference > Capability Functions > IG_TWAIN_cap_is_valid |
This function checks whether the handle to a capability container is valid.
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AT_BOOL ACCUAPI IG_TWAIN_cap_is_valid(
HTWAINCAP hTWAINCap
);
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| Name | Type | Description |
|---|---|---|
| hTWAINCap | HTWAINCAP | Handle to a capability container. References the container structure where detailed information about the capability is stored. |
Returns the number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.
This function does not process image pixels.