How to develop a virtual keyboard app for mac os

Recently my project involved a virtual keyboard design for mac os,Is similar in our computer /system/library/Input Methods/KeyboardViewer.app .I use the following method:

CGEventRef event1, event2;

event1 = CGEventCreateKeyboardEvent(NULL, (CGKeyCode)5, true);

CGEventPost(kCGSessionEventTap, event1);/

CFRelease(event1);

event2 = CGEventCreateKeyboardEvent(NULL, (CGKeyCode)5, false);

CGEventPost(kCGSessionEventTap, event2);

CFRelease(event2);


Simulation keyboard Input ,but I thought that such method is not good, consults the better method,Thanks very much.

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linkuanlu
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Just curious, what use is a virtual keyboard on a Mac. There are no Macs with touch screens...

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RLKingSoftware
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The possible some popeple to call it the soft keyboard ,Because my client's computer havn't keyboard.Can only use the mouse when inputs the content to need such soft keyboard.Therefore I need to design a soft keyboard on mine app

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linkuanlu
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Posting keyboard events via 

CGEventPost
is perfectly reasonable. You may find situations where you need to go lower in the input event stack but that’s best avoided unless you have a specific need.

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eskimo
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