如何覆盖全屏幕游戏与键窗口无边框窗口（覆盖）？ [英] How to override a fullscreen game with keywindow borderless window (overlay)?

问题描述

我创建的应用程序有时会显示带有标签和文本框的叠加层。

I've created the app which sometimes shows up an overlay with label and textbox. It works nice, but I need it to work even with other apps are in full-screen mode and active.

对于overlay，我已经创建了自定义的窗口类并覆盖了它，但是我需要它来工作，甚至与其他应用程序在全屏模式和活动。 canBecomeKeyWindow 方法让无边框窗口成为关键窗口（只需返回 YES ）。

For overlay, I've create custom window class and overridden canBecomeKeyWindow method to let borderless window become the key window (simply returns YES).

所以它工作，但是当我运行eg Minecraft，然后使其全屏，我的覆盖可以覆盖它。但我不能在覆盖中输入NSTextField。如何解决？

So it works, but when I run e.g. Minecraft, and then make it full screen, my overlay can override it. But I can't type in NSTextField in the overlay. How to fix it?

我正在创建一个这样的叠加层：

I'm creating an overlay like this:

[[NSWorkspace sharedWorkspace] hideOtherApplications];
NSRect frame = [[NSScreen mainScreen] frame];
_fadedWindow = [[CustonWindow alloc] initWithContentRect:frame
                                           styleMask:NSBorderlessWindowMask
                                             backing:NSBackingStoreBuffered
                                            defer:NO];
[_fadedWindow setAcceptsMouseMovedEvents:YES];
[_fadedWindow setOpaque:NO];
[_fadedWindow setLevel:CGShieldingWindowLevel()];
[_fadedWindow setBackgroundColor:[NSColor colorWithDeviceRed:0.0 green:0.0 blue:0.0 alpha:0.8]];
NSApplicationPresentationOptions options = NSApplicationPresentationDisableProcessSwitching + NSApplicationPresentationHideDock + NSApplicationPresentationDisableForceQuit + NSApplicationPresentationDisableSessionTermination + NSApplicationPresentationDisableHideApplication;
[NSApp setPresentationOptions:options];
_fadedWindow.alphaValue = 0;
[_fadedWindow orderFrontRegardless];
[[_fadedWindow animator] setAlphaValue:1];
[_fadedWindow toggleFullScreen:self];
[_fadedWindow makeKeyAndOrderFront:self];
[NSApp activateIgnoringOtherApps:YES];
[_fadedWindow orderFront:self];

但是，我似乎不能用键盘输入填充覆盖的NSTextField。

But still, I can't seem to populate overlay's NSTextField with keyboard input.

推荐答案

尝试这个。为_fadedWindow创建子类。然后把它放在：

Try this. Create a subclass for _fadedWindow. Then put this in:

-(BOOL)canBecomeKeyWindow {
    return YES;
}

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