black라는뜻은 아마두 이미지가 반전되어보이는 현상을 말하는것 같구요.
magic이란 말은 자신이 생각하기에는 별 이상이 없는데..
결과가 자꾸 이상하게 나오니깐 magic이란 말을 쓴것 같습니다.
제 생각에는요..

만해님 수고하세요 ^^

[만해] 님이 쓰신 글 :
: 안녕하세요 만해 입니다.
:
: 제가 야후의 Cpp Buidler 뉴스 그룹에 얼마전에 가입 했었는데요
:
: 저한테 오는 기사 중에 Black Magic 이란 제목의 기사가 와서요
:
: 이게 뭔지 궁금해서
:
: 혹 아시는분은 좀 알려 주세요
:
: 밑의 내용은 제한테 온 기사 전문입니다.
:
: Now, the "black magic" code I use:
:
: bool HelpBtn = false;
:
: void __fastcall TfrmMainMenu::ImgHelpMouseMove(TObject *Sender,
:             TShiftState Shift, int x, int y)
: {
:    if(HelpBtn)
:    {
:       ImgHelp->Picture->LoadFromFile(HelpPicOn);
:       HelpBtn = false;
:    }
: }
:
: void __fastcall TfrmMainMenu::FormMouseMove(TObject *Sender,
:             TShiftState Shift, int x, int y)
: {
:
:    if(!HelpBtn)
:    {
:       ImgHelp->Picture->LoadFromFile(HelpPicOff);
:       HelpBtn = true;
:    }
: }
:
: The way it works is that all of my images on the form are dark, until I move the mouse over them and they highlight.  When I move the mouse back over the form the image goes dark again.  The only problems is that sometimes after a modal window has popped up, and you have clicked the mouse somewhere in it that is not over the image that brought it up, when you close this window your mouse can end up on top of another image in the menu and since you didn't move over the form, both the original selection and the one the mouse ends up on are highlighted.  It can be confusing to the user.  If you move the mouse back over the form, both images go back to normal.  See what I mean about 'hoaky'.  It does work though, and pretty well.  It would just be nice if they(Borland) provided us with an ON and OFF mouse event like some of the other languages do.
: