Re: NSImage method problem
Re: NSImage method problem
- Subject: Re: NSImage method problem
- From: David Remahl <email@hidden>
- Date: Fri, 16 May 2003 17:10:52 +0200
Jericho,
Actually, the compiler is tricking you.
When the ObjC compiler compiles your code, it transforms your method
call into a C function, that looks like this:
objc_msgSend( id target, SEL selector, arg1type argument1, arg2type
argument2, etc );.
That is what the compiler means by "argument 4 of _indirect_ function
call". Argument four is actually the second parameter in your method
call (ie, srcRect).
You are trying to pass a NULL pointer in place of a structure. You will
have to use the constant NSZeroRect instead (although I'm still not
convinced that drawInRect::: is documented to automatically expand
NSZeroRect to mean the full image dimensions...)
/ Regards, David
On Friday, May 16, 2003, at 04:24 PM, Jericho Hasselbush wrote:
In the method:
- (void)drawInRect:(NSRect)dstRect fromRect:(NSRect)srcRect
operation:(NSCompositingOperation)op fraction:(float)delta
when I use 1.0 or a float value for the fraction: argument, I get a
compile error:
SimpleGameView.m:29: incompatible type for argument 4 of indirect
function call
Which makes absolutely no sense, because I am calling the function as
follows:
[image drawInRect:box fromRect:NULL operation:NSCompositeSourceOver
fraction:1.0];
thanks for the help
------------------------------------------------------------
Jericho Hasselbush || <email@hidden>
"Imagination is more important than knowledge. Knowledge is limited.
Imagination encircles the world."
-Albert Einstein
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