on my `BasicTextField` I want to trigger some stuf...

# compose-desktop

[Dirk Hoffmann]

on my BasicTextField I want to trigger some stuff on pressing Ctrl-Space:

modifier.onPreviewKeyEvent {
   val awtKeyEvent = it.nativeKeyEvent as java.awt.event.KeyEvent
   println(it)
   println(awtKeyEvent)
   ...

on pressing Ctrl-Space the KeyEvents for the Space char never come along, only for the Ctrl key ... but not the space key:

KeyEvent(nativeKeyEvent=java.awt.event.KeyEvent[KEY_PRESSED,keyCode=17,keyText=⌃,keyChar=Undefined keyChar,modifiers=⌃,extModifiers=⌃,keyLocation=KEY_LOCATION_LEFT,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x11] on canvas0)
java.awt.event.KeyEvent[KEY_PRESSED,keyCode=17,keyText=⌃,keyChar=Undefined keyChar,modifiers=⌃,extModifiers=⌃,keyLocation=KEY_LOCATION_LEFT,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x11] on canvas0
KeyEvent(nativeKeyEvent=java.awt.event.KeyEvent[KEY_RELEASED,keyCode=17,keyText=⌃,keyChar=Undefined keyChar,keyLocation=KEY_LOCATION_LEFT,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x11] on canvas0)
java.awt.event.KeyEvent[KEY_RELEASED,keyCode=17,keyText=⌃,keyChar=Undefined keyChar,keyLocation=KEY_LOCATION_LEFT,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x11] on canvas0

compared to pressing Alt-Space where also Key Events for the space char DO come along. e.g.:

KeyEvent(nativeKeyEvent=java.awt.event.KeyEvent[KEY_PRESSED,keyCode=32,keyText=␣,keyChar=' ',modifiers=⌥,extModifiers=⌥,keyLocation=KEY_LOCATION_STANDARD,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x0] on canvas0)
java.awt.event.KeyEvent[KEY_PRESSED,keyCode=32,keyText=␣,keyChar=' ',modifiers=⌥,extModifiers=⌥,keyLocation=KEY_LOCATION_STANDARD,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x0] on canvas0
KeyEvent(nativeKeyEvent=java.awt.event.KeyEvent[KEY_TYPED,keyCode=0,keyText=Unknown keyCode: 0x0,keyChar=' ',modifiers=⌥,extModifiers=⌥,keyLocation=KEY_LOCATION_UNKNOWN,rawCode=0,primaryLevelUnicode=0,scancode=0,extendedKeyCode=0x0] on canvas0)

Why Ctrl-Space events for the Space key do not come along, but Alt-Space space key does??