Dllcall Error

[Renderer]

Hello guys ! When i want to call a DLL function, i get  a sort of error.The error i receive is captured in the image bellow.

Error.bmp

Here i have the code example:

DllCall('user32.dll','int','CloseDesktop')

if @error Then
   MsgBox(18,'',@error)
EndIf

 

Edited May 22, 2016 by Renderer

[AutoBert]

after refrehing FF seeing unneccary answer.

Edited May 22, 2016 by AutoBert

[Jos]

Looks like you need to provide a pointer to the desktop to close.

Jos

[Danyfirex]

Look msdn.

BOOL WINAPI CloseDesktop(
  _In_ HDESK hDesktop
);

 

Regards

[RTFC]

If the aim is just to close a desktop, you don't need to use dllcall directly, as _WinAPI_CloseDesktop() already provides a wrapped call for that. See my SecondDesktop UDF (link in my sig) for an example.

More generally, a tutorial on using dllcall is here; you may also wish to check this out.

Edited May 23, 2016 by RTFC