Instructions

U.are.U SDK - Developer Guide 74
OPOS
EventNumber Return Values
Data Return Values
DP_SAMPLE_QUALITY Enumeration
Obj Return Values
Event Number Description
1 The fingerprint reader was disconnected.
2 The fingerprint reader was reconnected.
3 The fingerprint reader was touched.
4 The finger was removed from the fingerprint reader.
5 A fingerprint image is ready for processing.
6 Provides information about the quality of the fingerprint image.
7 A supplied fingerprint credential was added to the fingerprint enrollment template.
8 The fingerprint capture operation was stopped.
Event Number
a
a. For every other EventNumber (1 through 5 and 8), Data holds the value 0 (Not Supported).
Data Description
6 DP_QUALITY_GOOD,
DP_QUALITY_NONE, etc.
Can be any value from the DP_SAMPLE_QUALITY enumeration
in the table on the next page.
7 1, 2, 3, etc. Holds the number of images added.
Value Meaning
DP_QUALITY_GOOD (0) The image is of good quality.
DP_QUALITY_NONE (1) There is no image.
DP_QUALITY_TOOLIGHT (2) The image is too light.
DP_QUALITY_TOODARK (3) The image is too dark.
DP_QUALITY_TOONOISY (4) The image is too noisy.
DP_QUALITY_LOWCONTR (5) The image contrast is too low.
DP_QUALITY_FTRNOTENOUGH (6) The image does not contain enough information.
DP_QUALITY_NOCENTRAL (7) The image is not centered.
Event Number Object
1 The fingerprint reader was disconnected.
2 The fingerprint reader was reconnected.
3 The fingerprint reader was touched.
4 The finger was removed from the fingerprint reader.
5 NULL (Not Supported).
6 Provides information about the quality of the fingerprint image.
7 A supplied fingerprint credential was added to the fingerprint enrollment template.
8 The fingerprint capture operation was stopped.