The CreateComposeForm method creates a Compose Message Form.
HRESULT CreateComposeForm( IMessageFormHostEx * phost, LPMESSAGE pmsg, FORMTYPE eFormType, LPMESSAGE pMsgBase, MESSAGEFIELDS * pMsgFields, HWND hwndForm, HWND * phwndBody, IMessageFormEx ** ppForm );
[in] Reference to the IMessageFormHostEx object that allows the form to communicate with Messaging.
[in] Reference to the IMessage object to compose.
[in] The type of form, specified by the IFormProviderEx::FORMTYPE enumeration.
[in] Reference to the IMessage to use to pre-fill the form, if one exists.
[in] Reference to the MESSAGEFIELDS structure for the new message.
[out] Handle of the Compose Message Form's frame.
[out] Reference to the handle belonging to the Compose Message Form's body window.
[out] Reference to the newly created Compose Message Form (IMessageFormEx) object.
This method returns the standard values E_INVALIDARG, E_OUTOFMEMORY, E_UNEXPECTED, and E_FAIL, as well as the following:
CreateComposeForm is called by Messaging to create the form that is used to create messages for your custom form. The form creates a window as a child of the Messaging window.
CreateComposeForm returns a handle to the window it has created and a handle to an IMessageFormEx interface. When Messaging calls this method, it passes an IMessageFormHostEx pointer that allows the custom form to communicate with the Messaging Application.
|Windows Embedded CE||Windows CE .NET 4.2 and later|
|Windows Mobile||Pocket PC for Windows Mobile 2003 and later, Smartphone for Windows Mobile 2003 and later|