![[Previous]](../prev.gif) |
![[Contents]](../contents.gif) |
![[Index]](../keyword_index.gif) |
![[Next]](../next.gif) |
|
|
|
|
 |
This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs. |
Transform module to rotate a display 270 degrees counterclockwise
io-graphics -d driver_name hook=devg-rotate270.so ... &
x86, PPC, MIPS, ARM, SH4
None.
The devg-rotate270.so transform module is used by io-graphics to switch the display between portrait and landscape views.
To load the devg-rotate270.so module into io-graphics, use the hook option. For more information on options, see io-graphics.
You need to modify the X and Y resolution passed to io-graphics using the xres and yres options when you use the transform module. For example, to rotate a 640x480 16-bit color display 270 degrees counterclockwise:
io-graphics -d driver_name hook=devg-rotate270.so,xres=640,yres=640,bitpp=16 ...
 |
A 270-degree counterclockwise turn is equivalent to a 90-degree clockwise turn. |
You can cascade transform modules to flip the display, i.e. rotate 180 degrees:
io-graphics -d driver_name hook=devg-rotate270.so:devg-rotate270.so ...
|
|
|
|