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Project: Drop Files Components.

Unit: PJDropFiles.

Applies to: ~>5.0

This non-visual component catches all WM_DROPFILES messages that are received by the form on which it is placed. The component therefore intercepts files dragged from Windows Explorer and dropped anywhere on the form, including the non-client areas. Use TPJFormDropFiles whenever you just need to catch files anywhere on the main window without bothering about which particular control the files are dropped on.


TPJFormDropFiles defines no new methods.


Only those properties added or modified by TPJFormDropFiles are listed here. All other inherited properties are omitted.

Property Description
Count This read-only property returns the number of files dropped on the form.
DropControl This read only property references any control on the form that the files were dropped on.
DropPoint This read only property gives the mouse coordinates where the files were dropped.
Enabled Determines whether dropped files are handled or ignored.
FileName The name of a file dropped on the form.
Files The names of the most recent files dropped on the form.
Filter References a file filter component used to filter the names of dropped files.
ForegroundOnDrop Causes the form to be brought to the front when files are dropped.
IsFolder Tells whether each of the dropped files is a folder or a file.
Options Determines how the dropped files are processed and which files are stored in the Files property.


Event Description
OnBeforeDrop Event that occurs just before files dropped on the form are processed.
OnDropFiles Event that occurs when files are dropped on the form.
OnFileFilter Event that occurs for each file and folder processed and allows for custom filtering of files.