Returns an IupImage handle from a name.
It does NOT depends on the IM library.
Ihandle* IupImageGetHandle(const char* name); [in C] iup.ImageGetHandle(name: string) -> (ret: ihandle) [in Lua]
name: name of the image.
Returns: handle of the IupImage or NULL if failed.
Name can be a global name set with IupSetHandle, defined in LED or the name of a stock image from IupImageLib. In this case the function just returns the existing element.
Name can also be the a file name that will be loaded from disk. But the available file formats supported are system dependent. The Windows driver supports BMP. The GTK driver supports the formats supported by the GDK-PixBuf library, such as BMP, GIF, JPEG, PCX, PNG, TIFF and many others. The Motif driver supports the X-Windows bitmap. In this case the function returns a new image handle and associates the name with that handle, so in the next call it will returns the existing handle.
Name can also be the name of a resource image defined in a RC file in Windows. In this case the function returns a new image handle and associates the name with that handle, so in the next call it will returns the existing handle.