Uses internal rules to format the fields numerical value into +the character array pointed to by the passed parameter.
+ +The actual format used depends on the current step value. If +the step value has been set to zero then a %g format is used. +If the step value is non-zero, then a %.*f format is used, +where the precision is calculated to show sufficient digits +for the current step value. An integer step value, such as 1 +or 1.0, gives a precision of 0, so the formatted value will +appear as an integer.
+This method is used by the Fl_Value_... group of widgets to format the current value into a text string. The return value is the length of the formatted text. -The text itself is returned in buffer. -buffer should have space for up to 128 bytes.
+The formatted value is written into in buffer. +buffer should have space for at least 128 bytes.You may override this function to create your own text formatting.
diff --git a/documentation/Fl_Value_Input.html b/documentation/Fl_Value_Input.html index eed734574..eb13af664 100644 --- a/documentation/Fl_Value_Input.html +++ b/documentation/Fl_Value_Input.html @@ -31,6 +31,12 @@ href="Fl_Input.html#Fl_Input">Fl_Input widget with there - and when they hit return or tab the value updates to what they typed and the callback is done. +If step() is non-zero and integral, then the range of numbers +is limited to integers instead of floating point numbers. As +well as displaying the value as an integer, typed input is also +limited to integer values, even if the hidden Fl_Input widget +is of type(FL_FLOAT_INPUT).
+If step() is non-zero, the user can also drag the mouse across the object and thus slide the value. The left button moves one step() per pixel, the middle by 10