The CDM_SETDEFEXT message sets the default filename extension for an Explorer-style Open or Save As common dialog box. The dialog box must have been created with the OFN_EXPLORER flag; otherwise, the message fails.
CDM_SETDEFEXT wParam = 0; lParam = (LPARAM) (LPSTR) pszext; // corresponding macro void CommDlg_OpenSave_SetDefExt(hdlg, pszext)
No return value.
GetOpenFileName, GetSaveFileName, OPENFILENAME
|file: /Techref/os/win/api/win32/mess/src/msg03_2.htm, 1KB, , updated: 2000/4/7 12:19, local time: 2022/8/17 22:35,
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