private static long getHwnd(Canvas parent) throws LWJGLException {
AWTCanvasImplementation awt_impl = AWTGLCanvas.createImplementation();
WindowsPeerInfo parent_peer_info =
(WindowsPeerInfo) awt_impl.createPeerInfo(parent, null, null);
ByteBuffer parent_peer_info_handle = parent_peer_info.lockAndGetHandle();
try {
return parent_peer_info.getHwnd();
} finally {
parent_peer_info.unlock();
}
}
public void createWindow(DrawableLWJGL drawable, DisplayMode mode, Canvas parent, int x, int y)
throws LWJGLException {
close_requested = false;
is_dirty = false;
isMinimized = false;
isFocused = false;
redoMakeContextCurrent = false;
maximized = false;
this.parent = parent;
hasParent = parent != null;
parent_hwnd = parent != null ? getHwnd(parent) : 0;
this.hwnd =
nCreateWindow(
x,
y,
mode.getWidth(),
mode.getHeight(),
Display.isFullscreen() || isUndecorated(),
parent != null,
parent_hwnd);
this.resizable = false;
if (hwnd == 0) {
throw new LWJGLException("Failed to create window");
}
this.hdc = getDC(hwnd);
if (hdc == 0) {
nDestroyWindow(hwnd);
throw new LWJGLException("Failed to get dc");
}
try {
if (drawable instanceof DrawableGL) {
int format =
WindowsPeerInfo.choosePixelFormat(
getHdc(),
0,
0,
(PixelFormat) drawable.getPixelFormat(),
null,
true,
true,
false,
true);
WindowsPeerInfo.setPixelFormat(getHdc(), format);
} else {
peer_info = new WindowsDisplayPeerInfo(true);
((DrawableGLES) drawable)
.initialize(
hwnd,
hdc,
EGL.EGL_WINDOW_BIT,
(org.lwjgl.opengles.PixelFormat) drawable.getPixelFormat());
}
peer_info.initDC(getHwnd(), getHdc());
showWindow(getHwnd(), SW_SHOWDEFAULT);
updateWidthAndHeight();
if (parent == null) {
if (Display.isResizable()) {
setResizable(true);
}
setForegroundWindow(getHwnd());
} else {
parent_focused = new AtomicBoolean(false);
parent.addFocusListener(
parent_focus_tracker =
new FocusAdapter() {
public void focusGained(FocusEvent e) {
parent_focused.set(true);
clearAWTFocus();
}
});
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
clearAWTFocus();
}
});
}
grabFocus();
} catch (LWJGLException e) {
nReleaseDC(hwnd, hdc);
nDestroyWindow(hwnd);
throw e;
}
}