On Sep 16, 2009, at 1:33 AM, Claudio Wilmanns wrote:
In my application, I create ToolTipRectangles.
I need to display a custom tooltip (as the object does not have an
own -description: method), so I override the following method of the
NSToolTipOwner Protocol declared in NSView.h:
- (NSString *)view:(NSView *)view stringForToolTip:(NSToolTipTag)tag
point:(NSPoint)point userData:(void *)data;
My implementation looks like this:
- (NSString *)view:(NSView *)view stringForToolTip:(NSToolTipTag)tag
point:(NSPoint)point userData:(NSString*)userData {
NSString* string = [NSString string];
if ([userData isEqual:@"myData"]) {
string = [NSString stringWithFormat:@"Patch count: %d",
count]; // count is an integer instance variable in the calling class
}
return string;
}
Using Xcode 3.2 I constantly get these two **errors** (in Debug
Build Configuration) or **warnings** (in Release Build Configuration):
1) /.../PlotController.m:239: warning: conflicting types for '-
(NSString *)view:(NSView *)view stringForToolTip:(NSToolTipTag)tag
point:(NSPoint)point userData:(NSString *)userData'
2) /Developer/SDKs/MacOSX10.5.sdk/.../NSView.h:343: warning:
previous declaration of '-(NSString *)view:(NSView *)view
stringForToolTip:(NSToolTipTag)tag point:(NSPoint)point userData:
(void *)data'
Maybe you should make your implementation signature match the
prototype (note the difference between the types of the last argument).
The error in the Debug Build Configuration leads to an interruption
of the build process, hence I cannot debug my application, **this is
my main problem!!!**.
Actually, you're main problem is your code doesn’t match the
prototype; inability to build and/or debug is merely a symptom.
The warning in the Release Build Configuration however leads to a
properly built application. After running the application, the
expected behavior works well, no issues at all.
Sounds like a difference in compiler settings between the two
configurations. This, however, is not the problem though.
Using Xcode 3.1.3 (and Leopard 10.5.8), there is nor an error
neither a warning in both, Debug and Release mode. Everything works
fine.
The compiler used by Xcode 3.2 is stricter than previous
versions._______________________________________________
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