Trying to understand GetKeyState()... 1

[thatguy]

Hey there folks--

I'm trying to use GetKeyState in a command button's click event to detect if the user did a Shift-Click or just a regular click.. I'm testing with this code in a click event

#DEFINE k_SHIFT 0x10

DECLARE INTEGER GetKeyState IN WIN32API INTEGER

?getkeystate(k_SHIFT)

I'm getting this following output:
[tt]
click 0
shift-click 65409
shift-click -127
shift-click -127
click 1
click 1
shift-click 65408
shift-click -128
shift-click -128
click 0
[/tt]

is this normal? do i need to test for (GetKeyState() < 0 or GetKeyState() > 1)?

thanks
-- frank~

 

[pthalacker]

Frank,

The MouseDown event provides that information natively as parameters.

pamela

 

[thatguy]

duhh.. i'm an idiot.. i'll admit it..

still odd returns from getkeystate() tho, no?

thanks
-- frank~

 

[wgcs]

The MSDN help indicates that GetKeyState may not return what is intuitive: The key status returned from this function changes as a thread reads key messages from its message queue. The status does not reflect the interrupt-level state associated with the hardware. Use the GetAsyncKeyState function to retrieve that information.

- Bill

Get the best answers to your questions -- See FAQ481-4875.