blendop_new()
Definition
INT blendop_new ( )
Creates a new blend table. This table will contain a blending effect, which you’ll have to set afterwards, using the various functions. When that is done you can finally apply or assign the blend table to a graphic.
The source section of the blend table will be the normal object and the destination section will be cleared, removing translucency.
Parameters
Returns
- 0 - Error: insufficient memory or the screen was not yet initialized.
- !0 - Success (pointer to the blend table).
Notes
The right order of doing blending stuff: First create a new table with blendop_new()
, then put a blending effect in it with for example blendop_tint()
, and then assign it to a graphic with blendop_assign()
.
Blendops are not supported in 32bit mode.
Errors
Insufficient memory - There is insufficient memory available. This error doesn’t occur often.
Example
Program test;
Private
int blendTable;
Begin
set_mode(320,240,16);
x = 160;
y = 120;
graph = new_map(100,100,16);
map_clear(0,graph,RGB(255,255,255));
blendTable = blendop_new();
blendop_tint(blendTable,1,255,0,0);
Repeat
if (key(_space))
blendop_assign(0,graph,blendTable);
else
blendop_assign(0,graph,NULL);
end
frame;
Until(key(_ESC))
OnExit
unload_map(0,graph);
End
Used in example: set_mode()
, new_map()
, map_clear()
, blendop_new()
, blendop_tint()
, key()
, blendop_assign()
, unload_map()