VioGetState
From EDM2
Gets the current settings of the:
- Blink and background intensity switch
- Color registers
- Overscan (border) color
- Palette registers
- Target VioSetMode display configuration
- Underline location
Contents
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.