Prevent main application from closing

[arvydas]

Hi,

I'm using CEF3 in an MFC based application with muti process support. Everything works great except that I don't want to close the main application window when I close the CEF hosted window, because I want to create/destroy embedded browser windows on demand. How can I prevent cef from closing my main application window when I close the last browser window? CEF windows are hosted on separate windows from main application window.

Regards,
Arvydas

[magreenblatt]

How are you closing the browser windows? Read the documentation on DoClose and check what your application is doing in OnBeforeClose.

[arvydas]

How are you closing the browser windows? Read the documentation on DoClose and check what your application is doing in OnBeforeClose.

Found a way to do this myself. Had to run this command in order to close the window without affecting the main:

CefRefPtr<CefBrowser> browser = m_pChromeHandler->GetBrowser();
::DestroyWindow(browser->GetHost()->GetWindowHandle());

[daka1]

How do we do similar ::DestroyWindow on mac?
Usually we dont want to quit when the red close button is clicked.
We want to keep running windowless/with a hidden window

[magreenblatt]

How do we do similar ::DestroyWindow on mac?
Usually we dont want to quit when the red close button is clicked.
We want to keep running windowless/with a hidden window

Do you want to destroy the browser or just hide the window? Did your application create the parent NSWindow or did CEF?

[daka1]

I want to hide away the window. As it usually happens on OSX apps.

I still have the default cefclient entry point code for spawning my application:

Code: Select all

// Create the main application window.
 NSRect screen_rect = [[NSScreen mainScreen] visibleFrame];
 NSRect window_rect = { {0, screen_rect.size.height - sizeWindow.height},
   {sizeWindow.width, sizeWindow.height} };
 NSWindow* mainWnd = [[UnderlayOpenGLHostingWindow alloc]
                      initWithContentRect:window_rect
                      styleMask:(NSTitledWindowMask |
                                 NSClosableWindowMask |
                                 NSMiniaturizableWindowMask |
                                 NSResizableWindowMask )
                      backing:NSBackingStoreBuffered
                      defer:NO];

[magreenblatt]

You can implement NSWindowDelegate windowShouldClose to change the behavior when the user attempts to close the window.