Hi,
I can't figure out why FPC is struggling with figuring out which
overloaded methods to call. This is my application code which FPC has a
problem with.
type
TPDFFloat = Single;
TPDFCoord = record
X,Y: TPDFFloat;
end;
var
W, H: integer
begin
...snip...
P.DrawImage(25, 190, W div 2, H div 2, IDX); // this fails
Yet this works
P.DrawImage(25, 190, Integer(W div 2), Integer(H div 2), IDX);
Here are the overloaded DrawImage() definitions [sorry if you email
client wraps this badly]:
{ X, Y coordinates are the bottom-left coordinate of the image. AWidth
and AHeight are in image pixels. }
Procedure DrawImage(const X, Y: TPDFFloat; const AWidth, AHeight,
ANumber: integer); overload;
Procedure DrawImage(const APos: TPDFCoord; const AWidth, AHeight,
ANumber: integer); overload;
{ X, Y coordinates are the bottom-left coordinate of the image. AWidth
and AHeight are in UnitOfMeasure units. }
Procedure DrawImage(const X, Y: TPDFFloat; const AWidth, AHeight:
TPDFFloat; ANumber: integer); overload;
Procedure DrawImage(const APos: TPDFCoord; const AWidth, AHeight:
TPDFFloat; ANumber: integer); overload;
This is the compiler error message I got:
==============================
Compile Project, Target: testfppdf: Exit code 1, Errors: 1, Hints: 2
testfppdf.lpr(281,46) Error: Can't determine which overloaded function
to call
fppdf.pp(1802,20) Hint: Found declaration: TPDFPage.DrawImage(const
Single,const Single,const Single,const Single,const LongInt);
fppdf.pp(1788,20) Hint: Found declaration: TPDFPage.DrawImage(const
Single,const Single,const LongInt,const LongInt,const LongInt);
==============================
Doesn't the code ⸢(W div 2)⸥ resolve to an Integer result? W is an
Integer type, and DIV is an integer division.
I'm using 64-bit FPC 2.6.4.
Regards,
Graeme
--
fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal
http://fpgui.sourceforge.net/
My public PGP key: http://tinyurl.com/graeme-pgp
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