LINE_SENDDIALOGINSTANCEDATA

The LINE_SENDDIALOGINSTANCEDATA message causes TAPI to call the TUISPI_providerGenericDialogData function in the UI DLL associated with htDlgInst, passing it the parameter block pointed to by lpParams, of length dwSize.

LINE_SENDDIALOGINSTANCEDATA
htLine = (DWORD) htDlgInst;
htCall = (DWORD) 0;
dwMsg = LINE_SENDDIALOGINSTANCEDATA;
dwParam1 = (DWORD) lpParams;
dwParam2 = (DWORD) dwSize;
dwParam3 = (DWORD) 0;
 

Parameters

htDlgInst

The HTAPIDIALOGINSTANCE that was returned to the service provider when the dialog box instance was created using LINE_CREATEDIALOGINSTANCE.

lpParams

Pointer to a provider-specific parameter block that is conveyed to the UI DLL TUISPI_providerGenericDialogData function, the size of which is specified by dwSize. If this parameter is set to NULL, this is a request to close the dialog box immediately and clean up (the UI DLL should not invoke TUISPIDLLCALLBACK during this cleanup).

dwSize

The size in bytes of the parameter block to be conveyed to the UI DLL.