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Using Pen with U++ [message #56390] Wed, 03 March 2021 16:13 Go to previous message
Tom1
Messages: 1319
Registered: March 2007
Ultimate Contributor
Hi,

I just got a Wacom Intuos S (pen tablet). I'm planning on supporting using these devices with my software. Using the pen in place of the mouse works mostly as expected.

However, I would like to read the pen pressure in MouseMove(), (and possibly tilt/rotation some day too):

	POINTER_INFO pi;
	POINTER_PEN_INFO ppi;
	
	UINT32 pressure=0;
	
	if(GetPointerInfo(GET_POINTERID_WPARAM(wParam), &pi)) {
	  if(pi.pointerType == PT_PEN) {
	    UINT32 ppid = pi.pointerId;
	    if(GetPointerPenInfo(ppid, &ppi)) pressure=ppi.pressure;
	  }
	}


,but I can't, since I cannot access wParam.

Would it be much trouble to add support inside CtrlCore for getting pen pressure for current MouseMove()?

Unfortunately GetPointerInfo() and GetPointerPenInfo() are only available in Windows 8 and later, so some conditioning is required.

Best regards,

Tom

[Updated on: Wed, 03 March 2021 16:14]

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