Class TypeCast

Namespace

Qt.Bridge

Assembly

Qt.Bridge.CSharp.Api.dll

Provides generated QML cast helpers for bridged C# reference types.

public class TypeCast

Inheritance

object

TypeCast

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

TypeCast is exposed to QML as a singleton named TypeCast. The class itself is only a marker in the API assembly. During code generation, the bridge adds one as_* method for each supported bridged object type.

Use these generated methods when QML receives an object reference, and you want to treat it as a specific bridged C# type. If the runtime object is assignable to the target type, the method returns the typed wrapper. Otherwise, it returns null.

For example, a bridged C# type like this:

namespace ColorPalette;

public class ColorResource
{
    public string Name { get; set; }
    public int ColorId { get; set; }
}

produces a QML cast helper named TypeCast.as_ColorPalette_ColorResource(obj). In QML, you call that method with an object reference. If the object actually represents a ColorPalette.ColorResource instance, the return value can be used as that type. Otherwise, the result is null.

function showColorDetails(obj) {
    let color = TypeCast.as_ColorPalette_ColorResource(obj)
    if (color == null)
        return

    console.log(color.name)
    console.log(color.colorId)
}

Method names are derived from the C# namespace and type name, with namespace separators replaced by _.

Constructors

TypeCast()

public TypeCast()