On Fri, May 30, 2008 at 12:20 PM, Bent Normann Olsen <[EMAIL PROTECTED]> wrote: > Hi all, > > Lately I've been trying to create a package with custom components, which > works already on Lazarus Win32, but gets all kinds of errors on Mac OS X, so > I created a package from scratch and try to isolate different problems. > > I created a new package and saved it as "TestPackage.lpk", added a new > component with TWinControl as ancestor type and named it TCommonTest, named > the unit NewCtrls and saved the unit as newctrls.pas. I added a new > requirement to the package, so that LCL also is required by the new package. > > I then manually added a new component to the unit named TComponentTest with > TCommonTest as ancestor, and changed the register procedure to only register > the last component. > > It compiles, and the component is installed, and the component is visible in > the tab "New Ctrls" on Lazarus, which is compiled to Carbon. > > But when I try to drop the new component on a form (on a new and clean > application) it fails saying "Error moving component > ComponentTest1:TComponentTest". The new component does not appear on the > Object Inspector at first, but clicking on the component tree will make it > appear, and I also can select the component on the form - but nothing is > added to the unit source, and the application can't run because of Class > "TComponentTest" not found, which naturally is caused by nothing was added > to the units uses clause. > > Manually making the changes to the forms unit will cause the application to > raise an exception with the message: "(V)TCarbonWSWinControl.CreateHandle > Error:Not implemented - unable to create Carbon win control for > ComponentTest1:TComponentTest!" > > Does a new component with an ancestor type of TWinControl need special > handling, or is it impossible? Or am I doing something totally wrong? >
Hi, each TWinControl descendant needs to have implemented creation of underlying Carbon control. If you want to use generic TWinControl, you have to choose TCustomControl. Tom _______________________________________________ Lazarus mailing list [email protected] http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
