Re: Draw on Xwindow directly without NSWindow

[Yen-Ju Chen]

On 5/3/06, Fred Kiefer <fredkiefer@gmx.de> wrote:
> I just submitted code for gui and the X backends that should support
> most of what you want. Here is how I changed your test code to see if it
> is actually working:

Thanx a lot.
It really helps.
I will try it after work.

Yen-Ju

> - (void) applicationDidFinishLaunching:(NSNotification *)aNotification
> {
>   NSWindow *win;
>   /* Setup main window */
>   int x = 100, y = 10, w = 300, h = 300, border_width = 10;
>   mainXWindow = XCreateWindow(dpy, root_win, x, y, w, h, border_width,
>                   CopyFromParent, CopyFromParent, CopyFromParent, 0, NULL);
>
>   win = [[NSWindow alloc] initWithWindowRef: &mainXWindow];
>   [win makeKeyAndOrderFront: self];
>   [[win contentView] lockFocus];
>
>   [[NSColor blackColor] set];
>   NSRectFill(NSMakeRect(0, 0, 300, 300));
>   [[NSColor whiteColor] set];
>   NSRectFill(NSMakeRect(10, 10, 280, 280));
>   [[win contentView] unlockFocus];
> }
>
> You shoudl be aware that after wrapping the X window inside of the
> NSWindow, the later is responcible of freeing the X window. You should
> not be doing this yourself. Also notice that you have to provide a
> pointer to the X window not the window itself. I did this to match up
> with the existing windowDevice: method.
>
> Cheers
> Fred