Description: DragDropfiles is a message letter defined in a function declaration
DragQueryFile and DragFinish are all API functions, and they are referenced to the shellapi unit on the PAS head before calling.
OpenFile is a function you really use to open the file, and the other is to get the file name of the file that is dragged in.
Procedure Dragdropfiles (Var Message: TMESSAGE); Message WM_Dropfiles;
Procedure tfm_main.dragdropfiles; var p: array [0..254] of char; i: word; begin inherited; i: = dragqueryfile (Message.WParam, $ fffffff, nil, 0); for i : = 0 to i - 1 DO Begin Dragqueryfile (Message.WParam, I, P, 255); END; TRPAS (P)) Then OpenFile (StrPas (P)); Finally Dragfinish (HDrop (Merssis (Mssage.WParam) ));
