two things (newbie)
two things (newbie)
- Subject: two things (newbie)
- From: Rolando Abarca <email@hidden>
- Date: Thu, 10 Jun 2004 00:34:25 -0400
1)
I'm implementing a CD+G (karaoke) viewer, and currently this is my
approach:
In a window I have a custom view (NSView Subclass) that has a method
(loadCDG) that instantiates a timer, wich calls readCDG.
readCDG fills a buffer from a file, and then it needs to update the
content of the view, for that it calls [self display]. Apparently this
is not the way to go, because it's not displaying all the changes... (I
put my draw code in drawRect: and it's not called every time I call
[self display]).
2)
I need to do pixel manipulation, this is what I'm doing now:
NSBitmapImageRep *rep = [[NSBitmapImageRep alloc]
initWithFocusedViewRect:[self frame]];
unsigned char *data = [rep bitmapData];
and then try to modify data. But what's the format of the data?... and
is data the actual content of the view, or just a copy? I mean, do I
need to update it after I change it? if so, how?
thanks for any info.
regards,
Rolando Abarca.-
Departamento de Ciencias de la Computacion
Facultad de Ciencias Fisicas y Matematicas
Universidad de Chile
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