[Lazarus] OnMouseWheel[Down/Up] support in TControl (patch included)

Luiz Americo Pereira Camara luizmed at oi.com.br
Tue Jun 10 23:27:45 CEST 2008


Mattias Gaertner wrote:
>> As can be seen on that report, it introduces a Delphi
>> incompatibility.
>>     
>
> It's not a Delphi, but a winapi incompatibility.
>   

No, it's a Delphi compatibility. I tested CM_MOUSEWHEEL, the equivalent 
message of LM_MOUSEWHEEL. Under Delphi XPos and YPos fields returns 
screen coordinates.
Furthermore, OnMouseWheel MousePos also is at screen coordinates.

Luiz

 




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