Changes the orientation of font text output.
#include <graph.h>
struct _xycoord __far _setgtextvector( short x, short y );
| x, y | Integers specifying font rotation |
The _setgtextvector function sets the current orientation for font text output to the vector specified by x and y. The current orientation is used in calls to the _outgtext function.
The values of x and y define the vector which determines the direction of rotation of font text on the screen. The text-rotation options are shown below:
| (x, y) | Text Orientation |
| (0, 0) | Unchanged |
| (1, 0) | Horizontal text (default) |
| (0, 1) | Rotated 90 degrees counterclockwise |
| (–1, 0) | Rotated 180 degrees |
| (0, –1) | Rotated 270 degrees counterclockwise |
If other values are input, only the sign of the input is used. For example, (–3, 0) is interpreted as (–1, 0).
The _setgtextvector function returns the previous vector in a structure of _xycoord type. If you pass the _setgtextvector function the values (0, 0), the function returns the current vector values in the _xycoord structure.
Standards:None
16-Bit:DOS
32-Bit:None
_getfontinfo, _getgtextextent, _grstatus, _outgtext, _registerfonts, _setfont, _unregisterfonts
See the example for _outgtext.