The SendDlgItemMessage function sends a message to the specified control in a dialog box.
LONG SendDlgItemMessage(
HWND hDlg, |
// handle of dialog box |
int nIDDlgItem, |
// identifier of control |
UINT Msg, |
// message to send |
WPARAM wParam, |
// first message parameter |
LPARAM lParam |
// second message parameter |
); |
The return value specifies the result of the message processing and depends on the message sent.
The SendDlgItemMessage function does not return until the message has been processed.
Using SendDlgItemMessage is identical to retrieving a handle of the specified control and calling the SendMessage function.