(svn r2156) -Fix: in revision 2104 someone forgot to add a very important check in
GetPrevVehicleInChain; this caused some nasty bugs in depots, like
wagons without engines complain about not being stopped, and stuff like
that. Hopefully this fixes those problems. With a big tnx to BJH for his
perfect demo!

#ifndef SCREENSHOT_H
#define SCREENSHOT_H

void InitializeScreenshotFormats(void);

const char *GetScreenshotFormatDesc(int i);
void SetScreenshotFormat(int i);

bool MakeScreenshot(void);
bool MakeWorldScreenshot(int left, int top, int width, int height, int zoom);

#endif