### Host Display Info Availability LightWave® 6.0 Component Layout, Modeler Header lwdisplay.h The host display global returns platform-specific information about LightWave®'s interface. This is primarily useful when you want to create a platform-dependent interface for your plug-in. Global Call
       HostDisplayInfo *hdi;
       hdi = global( LWHOSTDISPLAYINFO_GLOBAL, GFUSE_TRANSIENT );
The global function returns a pointer to a HostDisplayInfo, or NULL if called in a non-interactive (e.g. Screamernet) context.
       typedef struct st_HostDisplayInfo {
        #ifdef _MSWIN
          HANDLE    instance;
          HWND      window;
        #endif
        #ifdef _XGL
          Display  *xsys;
          Window    window;
        #endif
        #ifdef _MACOS
          WindowPtr window;
        #endif
       } HostDisplayInfo;
The operating system #defines (`_MSWIN`, `_XGL`, `_MACOS`) are discussed in the section on plug-in compiling. `window` LightWave®'s main window. This is often used as the parent window of the plug-in's main window. `_MSWIN instance` Under Microsoft Windows, this is the instance handle for the LightWave® process. You won't need this very often. If you want a handle to a resource (dialog templates, icons, bitmaps) that's stored in your plug-in's .p file, you need to use your plug-in's instance handle, not LightWave®'s. See your Win32 documentation to find out how to get your instance handle using the `DllMain` function. `_XGL xsys` Under Unix, this is LightWave®'s window session handle. Example This code fragment displays everyone's favorite first message, but using the Win32 `MessageBox` function with LightWave®'s main window handle as the parent window.
       #include <lwserver.h>
       #include <lwdisplay.h>   /* includes windows.h under Windows */

       HostDisplayInfo *hdi;

       hdi = global( LWHOSTDISPLAYINFO_GLOBAL, GFUSE_TRANSIENT );

       if ( hdi ) {
          MessageBox( hdi->window, "Hello, world!", "My Message", MB_OK );
       }