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.TH "al_draw_rotated_bitmap" "3" "" "Allegro reference manual" ""
.hy
.SH NAME
.PP
al_draw_rotated_bitmap - Allegro 5 API
.SH SYNOPSIS
.IP
.nf
\f[C]
#include <allegro5/allegro.h>

void al_draw_rotated_bitmap(ALLEGRO_BITMAP *bitmap,
   float cx, float cy, float dx, float dy, float angle, int flags)
\f[R]
.fi
.SH DESCRIPTION
.PP
Draws a rotated version of the given bitmap to the target bitmap.
The bitmap is rotated by `angle' radians clockwise.
.PP
The point at cx/cy relative to the upper left corner of the bitmap will
be drawn at dx/dy and the bitmap is rotated around this point.
If cx,cy is 0,0 the bitmap will rotate around its upper left corner.
.IP \[bu] 2
cx - center x (relative to the bitmap)
.IP \[bu] 2
cy - center y (relative to the bitmap)
.IP \[bu] 2
dx - destination x
.IP \[bu] 2
dy - destination y
.IP \[bu] 2
angle - angle by which to rotate (radians)
.IP \[bu] 2
flags - same as for al_draw_bitmap(3)
.PP
Example
.IP
.nf
\f[C]
float w = al_get_bitmap_width(bitmap);
float h = al_get_bitmap_height(bitmap);
al_draw_rotated_bitmap(bitmap, w / 2, h / 2, x, y, ALLEGRO_PI / 2, 0);
\f[R]
.fi
.PP
The above code draws the bitmap centered on x/y and rotates it 90°
clockwise.
.PP
See al_draw_bitmap(3) for a note on restrictions on which bitmaps can be
drawn where.
.SH SEE ALSO
.PP
al_draw_bitmap(3), al_draw_bitmap_region(3), al_draw_scaled_bitmap(3),
al_draw_scaled_rotated_bitmap(3)