title: PostMessage Mouse click is worked but without moving
body: <p>I want to simulate a mouse click on a specific application with C# 'PostMessage' function.</p>
  
  <p>The click worked well, but the mouse position was not send.</p>
  
  <p>Perhaps it is updating the mouse position in real time in the application.</p>
  
  <p>Although the use of the SetCursorPos function change the cursor, the actual mouse judgment has not changed.</p>
  
  <p>How can you change the position of the mouse in the application with 'PostMessage'?</p>