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- {~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}
- { Downloaded from The Coder's Knowledge Base }
- { http://www.netalive.org/ckb/ }
- {~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}
- { @ CKB Header Version.: 1.01 }
- { @ Category ID........: delphi_misc }
- { @ Added to database..: 10.11.98 }
- {~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}
- { @ Title..............: Mouse move }
- { @ Original Filename..: mousemove.txt }
- { @ Author.............: Bent Normann Olsen (normann@greennet.gl) }
- { @ Description........: Highlight a comp by mouse move }
- { @ Tested w. Compiler.: not tested yet }
- { @ Submitted by.......: Unofficial Delphi Developers FAQ (uddf@gnomehome.demon.nl) }
- {~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}
-
-
- I want to write a component which highlights when the user moves the
- mouse over the comp.
-
- Use CM_MOUSEENTER and CM_MOUSELEAVE messages like:
-
-
- TYourObject = class(TAnyControl)
- private
- FMouseInPos : Boolean;
- procedure CMMouseEnter(var AMsg: TMessage); message CM_MOUSEENTER;
- procedure CMMouseLeave(var AMsg: TMessage); message CM_MOUSELEAVE;
- end;
-
- implementation
-
- procedure TYourObject.CMMouseEnter(var AMsg: TMessage);
- begin
- FMouseInPos := True;
- Refresh;
- end;
-
- procedure TYourObject.CMMouseLeave(var AMsg: TMessage);
- begin
- FMouseInPos := False;
- Refresh;
- end;
-
- ...and then read FMouseInPos when painting the control, or in any way you like to change the highlightning.
-
-
-