Direct2D custom effects registration XML with variable numbers of input

Question

By using nf-d2d1_1-id2d1factory1-registereffectfromstring, one needs an XML registration string to register an effect. I want to make an effect with variable inputs like Composite effect, however, it seemed that an XML registration string have fixed <Input> properties. how can I make an effect have variable inputs?

My XML string is this:

    auto xml_AxisRotation = XML(  
        <?xml version='1.0'?>  
        <Effect>  
            <!--System Properties-->  
            <Property name='DisplayName' type='string' value='MultiInput Effect'/>  
            <Property name='Author' type='string' value='Nan_ok'/>  
            <Property name='Category' type='string' value='None'/>  
            <Property name='Description' type='string' value='asdfasdfasdf'/>  
            <Inputs>  
                <Input name='Source1'/>  
                <Input name='Source2'/>  
                //...?  
            </Inputs>  
            <!--Custom Properties go here-->  
            <Property name='Mode' type='int32'>  
                <Property name='DisplayName' type='string' value='Mode'/>  
                <Property name='Default' type='int32' value='1'/>  
            </Property>  
        </Effect>  
    );  

Answer 1

Hello,

Welcome to Microsoft Q&A!

According to the Doc: Adding custom properties to an effect

For each property, an effect can optionally specify default, min, and max values. These values are for informational use only. They are not enforced by Direct2D. It is up to you to implement any specified default/min/max logic in the effect class yourself.

I suggest you could implement any specified default/min/max logic in the effect class yourself.

Thank you.

Jeanine

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