messageboxtimeouta

[mitulatbati]

Hi,

I want to invoke the MessageBoxTimeoutA function from the user32.dll. With the attached code the popup window appears, and 2 seconds later the complete LabView will be down. What is the problem, the parameters?

MB

[Andrey_Dmitriev · Accepted solution]

Strange, it works for me without any troubles (LabVIEW 2011/Windows 7).

Otherwise, its not good idea to use undocumented WinAPI function - MessageBoxTimeoutA officially not supported by Microsoft as far as I know.

Also check calling conventions - may be you have C. Shouls be stdcall (WinAPI). And show you code finally instead if gif screenshot. 

Andrey.

[mitulatbati]

It was the problem of the calling convention. I have to use standard (WINAPI), instead of C.