Editing PlexyUI API (section)

== Callback types ==

=== PlexyClickCallback ===
<pre>typedef void (*PlexyClickCallback)(uint32_t widget_id, void* userdata);</pre>
Called when a widget reports a click-style activation.

==== Parameters ====
{| class="wikitable"
|-
! Parameter !! Type !! Description
|-
| <code>widget_id</code> || <code>uint32_t</code> || Widget ID of the target control or container.
|-
| <code>userdata</code> || <code>void*</code> || Caller-provided context passed back into the callback.
|}

=== PlexyValueCallback ===
<pre>typedef void (*PlexyValueCallback)(uint32_t widget_id, float value, void* userdata);</pre>
Called when a widget emits a numeric value change.

==== Parameters ====
{| class="wikitable"
|-
! Parameter !! Type !! Description
|-
| <code>widget_id</code> || <code>uint32_t</code> || Widget ID of the target control or container.
|-
| <code>value</code> || <code>float</code> || Numeric value to apply or report.
|-
| <code>userdata</code> || <code>void*</code> || Caller-provided context passed back into the callback.
|}

=== PlexyTextCallback ===
<pre>typedef void (*PlexyTextCallback)(uint32_t widget_id, const char* text, void* userdata);</pre>
Called when widget text content changes.

==== Parameters ====
{| class="wikitable"
|-
! Parameter !! Type !! Description
|-
| <code>widget_id</code> || <code>uint32_t</code> || Widget ID of the target control or container.
|-
| <code>text</code> || <code>const char*</code> || Text content to display or apply.
|-
| <code>userdata</code> || <code>void*</code> || Caller-provided context passed back into the callback.
|}

=== PlexyKeyCallback ===
<pre>typedef void (*PlexyKeyCallback)(uint32_t widget_id, uint32_t keycode, uint32_t mods, void* userdata);</pre>
Called when a widget receives keyboard input.

==== Parameters ====
{| class="wikitable"
|-
! Parameter !! Type !! Description
|-
| <code>widget_id</code> || <code>uint32_t</code> || Widget ID of the target control or container.
|-
| <code>keycode</code> || <code>uint32_t</code> || Key code supplied with a key event.
|-
| <code>mods</code> || <code>uint32_t</code> || Modifier state supplied with a key event.
|-
| <code>userdata</code> || <code>void*</code> || Caller-provided context passed back into the callback.
|}

=== PlexyMenuCallback ===
<pre>typedef void (*PlexyMenuCallback)(uint32_t item_id, void* userdata);</pre>
Called when an application menubar item is chosen.

==== Parameters ====
{| class="wikitable"
|-
! Parameter !! Type !! Description
|-
| <code>item_id</code> || <code>uint32_t</code> || Identifier of a menu item.
|-
| <code>userdata</code> || <code>void*</code> || Caller-provided context passed back into the callback.
|}