MCIWNDM_OPEN

The MCIWNDM_OPEN message opens an MCI device and associates it with an MCIWnd window. For MCI devices that use data files, this macro can also open a specified data file, name a new file to be created, or display a dialog box to let the user select a file to open. You can send this message explicitly or by using the MCIWndOpen macro.

MCIWNDM_OPEN 
wParam = (WPARAM) (UINT) wFlags; 
lParam = (LPARAM) (LPVOID) szFile; 
 

Parameters

wFlags

Flags associated with the device or file to open. The MCIWNDOPENF_NEW flag specifies a new file is to be created with the name specified in szFile.

szFile

Address of a null-terminated string identifying the filename or MCI device name to open. Specify –1 for this parameter to display the Open dialog box.

Return Values

Returns zero if successful or an error otherwise.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in vfw.h.
  Unicode: Defined as Unicode and ANSI messages.

See Also

MCIWnd Window Class Overview, MCIWnd Messages, MCIWndOpen