精彩编程与编程技巧-往列表框中填入文件目录信息...

吏双燕崇嶄野秘猟周朕村佚連   


　This routine demonstrated using the API and a standard listbox to duplicate the functionality of a FileList Box. By using this method over the FileListBox, you can control the files, directories and drives displayed.　

　Note however that the constant value for 'READWRITE' is 0, the same as the vb constant 'Archive'. In VB you can not mask out the archive files to only return hidden files (for example).　But by using the API value DDL_EXCLUSIVE Or'd with the type to be listed, you have control over the display of files. 

　The added bonus is that this method is instantaneous.

　Add the following code to a BAS module: 
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Public Declare Function SendMessageStr Lib _
　"user32" Alias "SendMessageA" _
　(ByVal hwnd As Long, _
　 ByVal wMsg As Long, _
　 ByVal wParam As Long, _
　 ByVal lParam As String) As Long

Public Declare Function SendMessageLong Lib _
　 "user32" Alias "SendMessageA" _
　 (ByVal hwnd As Long, _
　　ByVal wMsg As Long, _
　　ByVal wParam As Long, _
　　ByVal lParam As Long) As Long

Public Const LB_DIR = &H18D
Public Const LB_RESETCONTENT = &H184

Public Const DDL_READWRITE = &H0