engine: platform: move Host_Minimize_f into platform code

engine/platform/dos/vid_dos.c

@@ -27,6 +27,11 @@ GNU General Public License for more details.
 #include <string.h>
 #include <stdlib.h>
 
+void Platform_Minimize_f( void )
+{
+	// stub
+}
+
 /*
 ========================
 Android_SwapBuffers

engine/platform/linux/vid_fbdev.c

@@ -28,6 +28,11 @@ struct fb_s
 
 #define DEFAULT_FBDEV "/dev/fb0"
 
+void Platform_Minimize_f( void )
+{
+	// stub
+}
+
 /*
 ========================
 Android_SwapBuffers

engine/platform/platform.h

@@ -257,7 +257,6 @@ void Platform_SetClipboardText( const char *buffer );
 #if XASH_SDL == 1
 #define SDL_SetWindowGrab( wnd, state ) SDL_WM_GrabInput( (state) ? SDL_GRAB_ON : SDL_GRAB_OFF )
 #define SDL_GetWindowGrab( wnd ) ( SDL_WM_GrabInput( SDL_GRAB_QUERY ) != SDL_GRAB_OFF )
-#define SDL_MinimizeWindow( wnd ) SDL_WM_IconifyWindow()
 #define SDL_IsTextInputActive() host.textmode
 #endif
 
@@ -311,6 +310,7 @@ void GL_SwapBuffers( void );
 void *SW_LockBuffer( void );
 void SW_UnlockBuffer( void );
 qboolean SW_CreateBuffer( int width, int height, uint *stride, uint *bpp, uint *r, uint *g, uint *b );
+void Platform_Minimize_f( void );
 
 
 //

engine/platform/sdl1/vid_sdl1.c

@@ -33,6 +33,11 @@ struct
 	SDL_Surface *win;
 } sw;
 
+void Platform_Minimize_f( void )
+{
+	SDL_WM_IconifyWindow();
+}
+
 qboolean SW_CreateBuffer( int width, int height, uint *stride, uint *bpp, uint *r, uint *g, uint *b )
 {
 	sw.width = width;

engine/platform/sdl2/vid_sdl2.c

@@ -35,6 +35,12 @@ struct
 	SDL_Surface *win;
 } sw;
 
+void Platform_Minimize_f( void )
+{
+	if( host.hWnd )
+		SDL_MinimizeWindow( host.hWnd );
+}
+
 qboolean SW_CreateBuffer( int width, int height, uint *stride, uint *bpp, uint *r, uint *g, uint *b )
 {
 	sw.width = width;