How to paste text from one app to another using Cocoa?

Question

I have read about NSPasteBoard in the Apple documentation, and how it allows for applications to write into the PasteBoard and allow other applicat

Answer 1

Here's some working code to post the ⌘+key event (assuming a known keycode):

// some common keycodes
#define KEY_CODE_x ((CGKeyCode)7)
#define KEY_CODE_c ((CGKeyCode)8)
#define KEY_CODE_v ((CGKeyCode)9)

void DCPostCommandAndKey(CGKeyCode key)
{
    CGEventSourceRef source = CGEventSourceCreate(kCGEventSourceStateCombinedSessionState);

    CGEventRef keyDown = CGEventCreateKeyboardEvent(source, key, TRUE);
    CGEventSetFlags(keyDown, kCGEventFlagMaskCommand);
    CGEventRef keyUp = CGEventCreateKeyboardEvent(source, key, FALSE);

    CGEventPost(kCGAnnotatedSessionEventTap, keyDown);
    CGEventPost(kCGAnnotatedSessionEventTap, keyUp);

    CFRelease(keyUp);
    CFRelease(keyDown);
    CFRelease(source);  
}