UKismetInputLibrary::Key_IsModifierKey
#include "Kismet/KismetInputLibrary.h"
Access: public
Specifiers: staticBlueprintPure
Description
Returns true if the key is a modifier key: Ctrl, Command, Alt, or Shift.
Caveats & Gotchas
- • Only recognizes the four generic modifier keys — it does not distinguish left/right variants (e.g. LeftShift and RightShift both return true) and returns false for any other key, including gamepad triggers used as modifiers in custom input setups.
- • Distinct from InputEvent_IsShiftDown/IsControlDown/etc., which check whether a modifier was held during a specific input event — this instead asks whether a given FKey itself is one of the four modifier keys.
Signature
static bool Key_IsModifierKey(const FKey& Key);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| Key | const FKey& | The key to test. | — |
Return Type
bool Example
Skip modifier keys in a key-rebinding UI C++
if (!UKismetInputLibrary::Key_IsModifierKey(PressedKey))
{
// Only treat non-modifier keys as the primary binding
BindKey(PressedKey);
}Tags
Version History
Introduced in: unknown
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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