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DragQueryFile info

The DragQueryFile function retrieves the filenames of dropped files.

UINT DragQueryFile(

    HDROP hDrop,

// handle to structure for dropped files

    UINT iFile,

// index of file to query

    LPTSTR lpszFile,

// buffer for returned filename

    UINT cch 

// size of buffer for filename

   );

Parameters

hDrop
Identifies the structure containing the filenames of the dropped files.
iFile
Specifies the index of the file to query. If the value of the iFile parameter is 0xFFFFFFFF, DragQueryFile returns a count of the files dropped. If the value of the iFile parameter is between zero and the total number of files dropped, DragQueryFile copies the filename with the corresponding value to the buffer pointed to by the lpszFile parameter.
lpszFile
Points to a buffer to receive the filename of a dropped file when the function returns. This filename is a null-terminated string. If this parameter is NULL, DragQueryFile returns the required size, in characters, of the buffer.
cch
Specifies the size, in characters, of the lpszFile buffer.

Return Values

When the function copies a filename to the buffer, the return value is a count of the characters copied, not including the terminating null character.

If the index value is 0xFFFFFFFF, the return value is a count of the dropped files.

If the index value is between zero and the total number of dropped files and the lpszFile buffer address is NULL, the return value is the required size, in characters, of the buffer, not including the terminating null character.

See Also

DragQueryPoint 


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