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NAME

GetVPModeID: get the 32 bit DisplayID from a ViewPort. (V36)

SYNOPSIS

modeID = GetVPModeID( vp )
d0 a0

ULONG GetVPModeID( struct ViewPort *);

FUNCTION

returns the normal display modeID, if one is currently associated with this ViewPort.

INPUTS

vp: pointer to a ViewPort structure.

RESULT

modeID: a 32 bit DisplayInfoRecord identifier associated with this ViewPort, or INVALID_ID.

NOTES

Test the return value of this function against INVALID_ID, not NULL. (INVALID_ID is defined in graphics/displayinfo.h).

SEE ALSO

graphics/displayinfo.h, ModeNotAvailable()