Set layer blending
#include <gf/gf.h> void gf_layer_set_blending( gf_layer_t layer, const gf_alpha_t * alpha );
gf
This function gives you control over layer blending (that is, opacity), allowing you to make a layer fully opaque, transparent, or semitransparent.
Changes to the layer's parameters are enqueued. You need to call gf_layer_update() to make them take effect. |
The blending parameters normally control how the contents of the layer are blended with intersecting layers that are behind the specified layer.
|
QNX Graphics Framework
Safety: | |
---|---|
Interrupt handler | No |
Signal handler | No |
Thread | Yes |
gf_alpha_t, gf_layer_query(), gf_layer_update()