C++ Syntax

bool

MKI_ConvertStringArea(

double& f_rValue,

const LPCWSTR f_pszText,

HWND f_hParentWindow );

Converts a string's content into an area value, with terms like (0.5+2.0)/3 being evaluated.

Parameters

Value

[double&] Address of variable to receive the evaluated area value.

Text

[const LPCWSTR] Text containing the area value to be converted. This text may either include a single numeric value or a complete term like (0.5+2.0)/3. For a description of the term syntax see Mathematical Terms.

ParentWindow

[HWND] If this handle is not nullptr, the corresponding window will be used as parent window of any error message occuring during term evaluation. If ParentWindow is nullptr, no error message is displayed.

Return Value

Returns true if successful, false if not.

Comment

This procedure will allow a value range of MKI_COORD_MIN (-1e100) to MKI_COORD_MAX (1e100). The default units are the currently active units for lengths and angles.

The term evaluation is limited to 100 bracket levels and 1000 elements per bracket level.