WideStudio Programming Guide	WideStudio Index Table of contents

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How to select the key events on the input field

You can select or reject/convert the key events on the input field with the event procedure by the WSEV_KEY_HOOK trigger.

// A WSEV_KEY_HOOK sample procedure.
// Set the input field with the WSEV_KEY_HOOK trigger.
...
public class hookop {
  protected static void hookop(WSCbase object){
    // get the pressed key code.
    long key = Mpfc.WSGIappKeyboard().getKey();
    if ((key >= Mpfc.WSK_0    && key <= Mpfc.WSK_9   ) ||
        (key >= Mpfc.WSK_KP_0 && key <= Mpfc.WSK_KP_9) ||
        key == Mpfc.WSK_plus      || key == Mpfc.WSK_minus  ||
        key == Mpfc.WSK_BackSpace || key == Mpfc.WSK_Delete || key == Mpfc.WSK_Insert ||
        key == Mpfc.WSK_space     || key == Mpfc.WSK_Up     || key == Mpfc.WSK_Down   ||
        key == Mpfc.WSK_Left      || key == Mpfc.WSK_Right  || key == Mpfc.WSK_Return ){

      // dispatches..
      return;
    }
    // Reject the other.
    Mpfc.WSGIappKeyboard().setKey(0);
  }
}

This sample of the input field shows how to choose the key event. Mpfc.WSGIappKeyboard().setKey(0) reject the key event which you do not need.