Class TextArea

SampleApps/WebView2APISample/TextInputDialog.h:57–70

A multi-line text input area with a descriptive label above it. The label is rendered as a read-only EDIT (grey background, bordered) and the input area below it is a writable EDIT where the user can type. Set |readOnly| to true to make the input area non-editable (useful for displaying results). After the dialog is dismissed, |input| holds the text entered by the user.

// displaying results). After the dialog is dismissed, |input| holds the
// text entered by the user.
struct TextArea
{
    // Descriptive text shown in a read-only EDIT above the input area.
    std::wstring label;
    // If true, the input area is non-editable (display-only).
    bool readOnly;
    // Pre-filled with default text; holds the user-entered text after OK.
    std::wstring input;

    TextArea(const std::wstring& label, const std::wstring& input = L"", bool readOnly = false)
        : label(label), readOnly(readOnly), input(input)
    {
    }
};

// Ordered collection of dynamic controls. Add new types to this variant.
using DialogControl = std::variant<CheckBoxGroup, TextArea>;