al_draw_rotated_bitmap - Online Linux Manual PageSection : 3
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Source : Allegro reference manual
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NAMEal_draw_rotated_bitmap − Allegro 5 API

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SYNOPSIS #include <allegro5/allegro.h> void al_draw_rotated_bitmap(ALLEGRO_BITMAP *bitmap,    float cx, float cy, float dx, float dy, float angle, int flags)

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DESCRIPTIONDraws a rotated version of the given bitmap to the target bitmap. The bitmap is rotated by 'angle' radians clockwise. 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. • cx − center x (relative to the bitmap) • cy − center y (relative to the bitmap) • dx − destination x • dy − destination y • angle − angle by which to rotate (radians) • flags − same as for al_draw_bitmap(3) Example 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); The above code draws the bitmap centered on x/y and rotates it 90° clockwise. See al_draw_bitmap(3) for a note on restrictions on which bitmaps can be drawn where.

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SEE ALSOal_draw_bitmap(3), al_draw_bitmap_region(3), al_draw_scaled_bitmap(3), al_draw_scaled_rotated_bitmap(3) 0

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