如何用Windows API設定某檔案會被某程式打開的檔案關聯性 我知道用RegSetValue這個API在登錄檔下註冊就行了 以下這個API是用VB裡的API-Viewer找出來的: Public Declare Function RegSetValue Lib "advapi32.dll" Alias "RegSetValueA" (ByVal hKey As Long, ByVal lpSubKey As String, ByVal dwType As Long, ByVal lpData As String, ByVal cbData As Long) As Long 有誰知道參數hKey,dwType怎麼得到ㄋ??

RegSetValue() Writes a given value to the registry. Currently only a PChar-type can be written. To store boolean or integer values, they must be converted. function RegSetValue(Key: HKey; SubKey: PChar; ValType: Longint; Value: PChar; cb: Longint): Longint; Key: The Handle of the parent key (can be HKEY_CLASSES_ROOT). SubKey: The subkey for which the value should be stored. ValType: must be REG_SZ for Win31. Value: The value to be stored. cb: Size in bytes for the Value parameter. Windows 3.1 ignores this paramater. Returns: ERROR_SUCCESS if function was successful; otherwise an error is returned. 網海無涯，學無止境!

我已經找到做法了 方法是: 開啟檔案總管->工具->資料夾選項->檔案類型 ->選取某個要查閱的副檔名(例如WAV)->進階 觀察此關聯性的設法 進入到REGEDIT裡到HKEY_CLASSES_ROOT找到.WAV觀察裡面的KEY寫了哪些值 在BCB程式裡利用RegSetValue()寫入此檔案關聯所需要的值即可