[lazarus] GetFormRelativeMousePosition, GetCaretPos?

[Micha Nelissen]

Marc Weustink wrote:

> At 17:50 27-7-2003 +0200, Micha Nelissen wrote:
> 
>> Hi,
>>
>> In the IDE designer these (see subject) two functions are used to 
>> determine the mouse position?
> 
> 
> ??? GetCaretPos hasn't anything to do with a mouse, so I don't think it 
> is used.

I thought so too, but check GetFormRelativeMousePosition in 
designerprocs.pas.

>> AFAIK, there is no caret on a form and on windows GetCaretPos returns 
>> the client position of the caret of whatever it currently is in. 
>> Please explain.
> 
> 
> The Caret (on windows) is system wide. There is only one Caret (that's 
> why you don't have to specify a handle in GetCaretPos) and it is per 
> def. in the currently focused window.

The strange thing is that the form origin is subtracted from it, but 
since GetCaretPos is client relative position, this can never give a 
correct result.

Regards,

Micha.