Follow-Up: While doing some additional testing before writing a bug report, I noticed that Apple's "RoundTransparentWindow" sample code did work as expected! Turns out that setIgnoresMouseEvents:NO will do the actual breaking.
Thus: Bug ID# 10104405 Summary: Sending setIgnoresMouseEvents:NO to a borderless window makes the transparent parts of the window opaque to mouse events. Steps to Reproduce: 1. Take RoundTransparentWindow sample project (https://developer.apple.com/library/mac/samplecode/RoundTransparentWindow/) 2. Add [self setIgnoresMouseEvents:NO]; to the CustomWindow class' initializer: - (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)aStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL)flag { // Using NSBorderlessWindowMask results in a window without a title bar. self = [super initWithContentRect:contentRect styleMask:NSBorderlessWindowMask backing:NSBackingStoreBuffered defer:NO]; if (self != nil) { // Start with no transparency for all drawing into the window [self setAlphaValue:1.0]; // Turn off opacity so that the parts of the window that are not drawn into are transparent. [self setOpaque:NO]; // this following call will make the transparent parts of the window opaque to mouse events! [self setIgnoresMouseEvents:NO]; } return self; } 3. Run project. 4. Click and drag inside the window's frame but outside the visible content. The window will move. Expected Results: Mouse events should be ignored for transparent parts of the window. Actual Results: Window receives mouse events everywhere inside its frame, regardless of opacity. Regression: This did work as expected in versions of Mac OS X prior to 10.7. Notes: Regarding this specific example: Since the window was initially (per default) set up to NOT ignore mouse events anyway, setIgnoresMouseEvents:NO shouldn't do anything at all. Andreas_______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
