11-19-2010
Depending on how the image is stored, there may be ways to modify it, or not. What is the image stored as?
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LEARN ABOUT DEBIAN
dtk_create_image
DTK_CREATE_IMAGE(3) Draw Toolkit manual DTK_CREATE_IMAGE(3)
NAME
dtk_create_image - Create and modify a shape displaying an image
SYNOPSIS
#include <drawtk.h>
dtk_hshape dtk_create_image(dtk_hshape shp,
float x, float y, float width, float height,
const float* color, dtk_htex image);
DESCRIPTION
dtk_create_image() creates a rectangle of size (height,width) centered at (cx,cy) containing the image loaded in texture image. The image
will by stretched to fit the size of the rectangle disregarding the dimension of the image. The color argument modulates the pixel values
of the image, i.e. to display the image the same way it exist in the image file, color should be white.
shp and color have the same usage and meaning as for other shape creation function:
* shp can be used to modify a previously created shape. If it is non-null, the handle will be used to modify the shape referenced by shp:
no new shape is created and the returned value is ensured to be shp in case of success, NULL otherwise. If shp is NULL, the function
will attempt to create a new shape.
* color should point to a 4 float array containing a normalized RGBA value (i.e. each component is between 0.0 and 1.0).
RETURN VALUE
In case of success these functions return the handle to the newly created or modified shape. If the shp argument is non-null, the handle
returned is the same value. In case of error, NULL is returned.
SEE ALSO
dtk_destroy_shape(3), dtk_load_image(3)
EPFL
2011 DTK_CREATE_IMAGE(3)