Recently I use the LabVIEW's Call Library Function Node to invoke a dll's function.
The prototype of function is:
int videorecvstart(HWND hwnd);int videorecvstop()
It opens a display area on the windows which hwnd pointed and another one close this display area.
And my problem is:
If I start labview and run this VI at the first time it's OK,display area appear and disappear...
but if I run it again there is no action unless I quit labview.
How to modify my code in order to run it continuously without quit labview?
Can some body help me? Thanks!
I have attached my VI and dll.