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NPAPI:AsyncDrawing: Difference between revisions
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→Async Drawing Mechanics
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<pre> | <pre> | ||
NPN_CreateAsyncSurface(NPP instance, NPAsyncSurface* surface); | NPError NPN_CreateAsyncSurface(NPP instance, NPAsyncSurface* surface); | ||
</pre> | </pre> | ||
The <code>size</code> member of the <code>NPAsyncSurface</code> should be set to the desired width and height of the surface. The <code>format</code> field of the <code>NPAsyncSurface</code> should reflect the format of the surface that is to be created. Upon return the <code>data</code> pointer should point to a valid surface data. The exact content depends on the type of surface requested, it will be | The <code>size</code> member of the <code>NPAsyncSurface</code> should be set to the desired width and height of the surface. The <code>format</code> field of the <code>NPAsyncSurface</code> should reflect the format of the surface that is to be created. Upon return the <code>data</code> pointer should point to a valid surface data. The exact content depends on the type of surface requested, it will return an error when a failure occurs, <code>data</code> will be undefined. | ||
Surfaces can be destroyed via a new function called <code>NPN_DestroyAsyncSurface</code>: | Surfaces can be destroyed via a new function called <code>NPN_DestroyAsyncSurface</code>: | ||
<pre> | <pre> | ||
NPN_DestroyAsyncSurface(NPP instance, NPAsyncSurface* surface); | NPError NPN_DestroyAsyncSurface(NPP instance, NPAsyncSurface* surface); | ||
</pre> | </pre> | ||
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<pre> | <pre> | ||
NPN_SetCurrentAsyncSurface(NPP instance, NPAsyncSurface* surface); | NPError NPN_SetCurrentAsyncSurface(NPP instance, NPAsyncSurface* surface); | ||
</pre> | </pre> | ||