[10521] in The GTK GIMP ToolKit mailing list archive
[gtk-list] Re: Drawing in GtkDrawingArea
daemon@ATHENA.MIT.EDU (Marsel Osipov)
Sun Nov 29 19:43:44 1998
Date: Sun, 29 Nov 1998 16:43:03 -0800
From: Marsel Osipov <virtuoso@jps.net>
To: gtk-list@redhat.com
Resent-From: gtk-list@redhat.com
Reply-To: gtk-list@redhat.com
Havoc Pennington wrote:
> On Sat, 28 Nov 1998, Marsel Osipov wrote:
> >
> > I did. I actually started with it. and it still does not work.
> >
>
> Post some code then, or give us more details. We can't guess what you're
> doing wrong.
>
> Havoc
>
void MyClass::displayPixel(RGBColor pixel, int x, int y)
{
GdkColor *color;
GdkGC * gc;
gc = gdk_gc_new(d_area->window);
color = (GdkColor *)malloc(sizeof(GdkColor));
color->red = (gushort)pixel.red() * (65535/255);
color->green = (gushort)pixel.green() * (65535/255);
color->blue = (gushort)pixel.blue() * (65535/255);
color->pixel = (gulong)(pixel.red()*65536 + pixel.green()*256 +
pixel.blue());
gdk_color_alloc(gtk_widget_get_colormap(d_area), color);
gdk_gc_set_foreground(gc, color);
gdk_gc_set_background(gc, color);
gdk_draw_point(pixmap,
gc,
x,
y);
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