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Embedded Application Programming Interface - picmg

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5.3.3 Return Status Code<br />

Condition<br />

Library Uninitialized<br />

Enable!=EAPI_BACKLIGHT_SET_ON &&<br />

Enable!=EAPI_BACKLIGHT_SET_OFF<br />

unknown Id<br />

Return Value<br />

EAPI_STATUS_NOT_INITIALIZED<br />

EAPI_STATUS_INVALID_PARAMETER<br />

EAPI_STATUS_UNSUPPORTED<br />

… see 2.3 Status Codes on page 16<br />

Success<br />

EAPI_STATUS_SUCCESS<br />

5.4 EApiVgaGetBacklightBrightness<br />

5.4.1 Description<br />

Reads the current brightness of the selected flat panel display.<br />

5.4.2 Parameters<br />

Id<br />

uint32_t<br />

EAPI_CALLTYPE<br />

EApiVgaGetBacklightBrightness(<br />

__IN uint32_t Id , /* Backlight Id */<br />

__OUT uint32_t *pBright /* Backlight Brightness */<br />

);<br />

FUNC_DEF 7: EApiVgaGetBacklightBrightness<br />

__IN See '5.1.1 Backlight Ids' on page 24<br />

pBright<br />

__OUT Pointer to a buffer that receives the the current backlight brightness level.<br />

See 5.1.3 Backlight Brightness Value Range on page 24.<br />

5.4.3 Return Status Code<br />

Condition<br />

Library Uninitialized<br />

pBright==NULL<br />

unknown Id<br />

Return Value<br />

EAPI_STATUS_NOT_INITIALIZED<br />

EAPI_STATUS_INVALID_PARAMETER<br />

EAPI_STATUS_UNSUPPORTED<br />

... see 2.3 Status Codes on page 16<br />

Success<br />

EAPI_STATUS_SUCCESS<br />

5.5 EApiVgaSetBacklightBrightness<br />

PICMG® EAPI R1.0, August 8, 2010 page 26 of 83

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