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Re: Drag of mouse while left button is pressed. [message #27639 is a reply to message #27628]

Tue, 27 July 2010 12:11

mrjt
Messages: 705
Registered: March 2007
Location: London

Contributor

The code you want is something like:

void LeftDown(Point p, dword keyflags)
{
   SetCapture(); 
   // All mouse events are now directed to this ctrl until ReleaseCapture is called
}

void MouseMovePoint p, dword keyflags)
{
   if (HasCapture())
      // Left mouse is depressed
   else
      // No button pressed
}

void LeftDown(Point p, dword keyflags)
{
   ReleaseCapture(); 
}

There are loads of other ways of doing it, but this is the cleanest for simple behaviour. You can also use LeftHold/LeftDrag but they have a slight delay before being triggered.

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