DtvLong dal_smf_ret_key ()

Returns the current keyboard code.

Input Parameters Significance
none -

Output Parameters Significance
none -

Return Code Significance
value decimal value for the key or. key combination pressed (in case of function keys from <keydef.h>)
0 read error
<0 double click

This function returns the keyboard code assigned in <keydef.h> for function keys, and the corresponding ASCII code for keys of the alphanumeric keypad.

In case of a double click per current unit of time the function returns the keyboard code as negative value.

Attention! This function is not supported any more in DataView version 4.1.