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getDisplayModes

Return the number of display modes the framebuffer supports.

Declaration

virtual IOReturn getDisplayModes(
 IODisplayModeID *allDisplayModes ) = 0;

Parameters

  • allDisplayModes:

    A caller allocated buffer with the size given by the result of getDisplayModeCount().

Return Value

an IOReturn code. A return other than kIOReturnSuccess will prevent the system from using the device.

Overview

IOFramebuffer subclasses must implement this method to return an array of display mode IDs available for the framebuffer. The IDs are defined by the driver in the range 0x00000001 - 0x7fffffff, and should be constant for a given display mode.

See Also

Miscellaneous