CFbsScreenDevice Class Reference

Creates a new CFbsScreenDevice object.

Creates a new CFbsScreenDevice object.

DeprecatedUse two param version instead.

Creates a new CFbsScreenDevice object.

Gets the palette attributes of the device.

Query the screen number to which the object refers.

Sets or unsets auto-update for the screen.

WARNING: Function for internal use ONLY. Compatibility is not guaranteed in future releases.

This function selects the surface and device buffer to use in the screen driver for this screen. Normal and 180 rotations will generally use the same surface, while 90 and 270 will use another. The surfaces may have different width, height, stride and surface, so functions that make use of any of these may be affected after a change in surface orientation, and the return value should be checked for this reason.

This call does not change the way rendering is performed, but may operate on the underlying memory using a new shape. The call does not change the display controllers settings, as this is handled via the GCE. All this changes are the internal attributes of the screen device and driver objects. A CFbsBitGc object activated on the device should be reactivated, to update its own attributes, or drawing may be corrupted.

Note: while TDeviceOrientation values do not directly correspond to CFbsBitGc::TGraphicsOrientation values, and cannot be used interchangeably, it is simple to generate the former from the latter using the left-shift operator (i.e. device == (1 << graphics)). In particular a device orientation of 90 degrees clockwise is equivalent to a content orientation of 90 degrees anti- clockwise, which is what TGraphicsOrientation refers to for the equivalent setting. The letters "CW" in the TDeviceOrientation enumeration refer to a clockwise device rotation, so EDeviceOrientation90CW is a 90 degree clockwise rotation of the device.

Sets the device's palette to the specified palette.

Setting the palette is only possible if the device has a modifiable palette, which can be determined by calling PaletteAttributes().

This method has been deprecated. Sprites are no longer supported in BitGDI. Calling this method has no effect.

Deprecated

This method has been deprecated. Sprites are no longer supported in BitGDI. Calling this method has no effect.

Deprecated

Gets the size of the device area, in twips.

This implements the pure virtual function CGraphicsDevice::SizeInTwips().

See also: CGraphicsDevice::SizeInTwips()

Returns frame buffer line pitch or stride.

Forces any out of date region of the screen to update.

Forces any out of date region of the screen to update, and additionally forces the specified region to update.

Converts a vertical dimension from pixels to twips.

This implements the pure virtual function MGraphicsDeviceMap::VerticalPixelsToTwips().