vg4->misc->rect2position()

Set a centered position from a rectangle.

SYNTAX

struct VG_Position * vg4->misc->rect2position(struct VG_Position *posdst, const struct VG_Rect *rect)

FUNCTION PARAMETERS

posdst	Position to be set
rect	Rectangle

RETURN VALUE

Returns posdst

DESCRIPTION

Set a centered position from a rectangle. This function is mainly used for copying an image to another image or the window.

EXAMPLE

struct VG_Position posdst;
struct VG_Rect rect;
struct VG_Image *imgp;

/* load image and get size */
imgp = vg4->image->load("myimg.bmp");
vg4->image->getsize(imgp, NULL, &rect.w, &rect.h);

/* image shall be copied onto the window, centered at position 80,50 */
rect.x = 80; rect.y = 50;
vg4->window->copy(imgp, vg4->misc->rect2position(&posdst, &rect), NULL);