[Now Supported on Windows NT]
Specifies an application-defined callback function used with the SHBrowseForFolder function. The browse dialog box calls this function to notify it about events. The BFFCALLBACK type defines a pointer to this callback function.
int BrowseCallbackProc(
| HWND hwnd, | |
| UINT uMsg, | |
| LPARAM lParam, | |
| LPARAM lpData | |
| ); |
Parameters
hwnd
Handle to the browse dialog box. The callback function can send the following messages to this window:
| BFFM_ENABLEOK | Enables the OK button if the wParam parameter is nonzero or disables it if wParam is zero. |
| BFFM_SETSELECTION | Selects the specified folder. The lParam parameter is the PIDL of the folder to select if wParam is FALSE, or it is the path of the folder otherwise. |
| BFFM_SETSTATUSTEXT | Sets the status text to the null-terminated string specified by the lParam parameter. |
uMsg
Value identifying the event. This parameter can be one of the following values:
| BFFM_INITIALIZED | The browse dialog box has finished initializing. lpData is NULL. |
| BFFM_SELCHANGED | The selection has changed. lpData is a pointer to the item identifier list for the newly selected folder. |
lParam
Message-specific value. For more information, see the description of uMsg.
lpData
Application-defined value that was specified in the lParam member of the BROWSEINFO structure.
Return Values
Returns zero.
See Also