VioGetState: Difference between revisions
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==Parameters== | ==Parameters== | ||
;RequestBlock ( | ;RequestBlock (PVOID) - in/out : Request block. | ||
:The address of the video-state structures consisting of six different structures depending on the request type: | :The address of the video-state structures consisting of six different structures depending on the request type: | ||
:{| | ::{| | ||
!Type||Definition | !Type||Definition||Structure | ||
|- | |- | ||
|0||Get palette registers | |0||Get palette registers||[[VIOPALSTATE]] | ||
|- | |- | ||
|1||Get overscan (border) | |1||Get overscan (border) colour||[[VIOOVERSCAN]] | ||
|- | |- | ||
|2||Get blink and background intensity switch | |2||Get blink and background intensity switch||[[VIOINTENSITY]] | ||
|- | |- | ||
|3||Get color registers | |3||Get color registers||[[VIOCOLORREG]] | ||
|- | |- | ||
|4||Reserved | |4||Reserved|| | ||
|- | |- | ||
|5||Get the scan line for underlining | |5||Get the scan line for underlining||[[VIOSETULINELOC]] | ||
|- | |- | ||
|6||Get target VioSetMode display configuration | |6||Get target [[VioSetMode]] display configuration||[[VIOSETTARGET]] | ||
|} | |} | ||
;VioHandle (HVIO) - input: Reserved. Must be 0. | ;VioHandle (HVIO) - input: Reserved. Must be 0. | ||
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==Remarks== | ==Remarks== | ||
Note: VioGetState allows access to hardware-dependent features. Not all video hardware will honor these settings or return valid settings. | ;Note: VioGetState allows access to hardware-dependent features. Not all video hardware will honor these settings or return valid settings. | ||
[[Category:Vio]] | [[Category:Vio]] | ||
Latest revision as of 03:09, 6 March 2020
Gets the current settings of the:
- Blink and background intensity switch
- Color registers
- Overscan (border) color
- Palette registers
- Target VioSetMode display configuration
- Underline location
Syntax
VioGetState(RequestBlock, VioHandle)
Parameters
- RequestBlock (PVOID) - in/out
- Request block.
- The address of the video-state structures consisting of six different structures depending on the request type:
Type Definition Structure 0 Get palette registers VIOPALSTATE 1 Get overscan (border) colour VIOOVERSCAN 2 Get blink and background intensity switch VIOINTENSITY 3 Get color registers VIOCOLORREG 4 Reserved 5 Get the scan line for underlining VIOSETULINELOC 6 Get target VioSetMode display configuration VIOSETTARGET
- VioHandle (HVIO) - input
- Reserved. Must be 0.
Return Code
- rc (APIRET) - returns
- VioGetState returns one of the following values:
- 0 NO_ERROR
- 355 ERROR_VIO_MODE
- 421 ERROR_VIO_INVALID_PARMS
- 436 ERROR_VIO_INVALID_HANDLE
- 438 ERROR_VIO_INVALID_LENGTH
Remarks
- Note
- VioGetState allows access to hardware-dependent features. Not all video hardware will honor these settings or return valid settings.