dag@CONTROL.LTH.SE (Dag Bruck) (04/16/91)
> Dag> I create bitmap objects using the constructor > > Dag> Bitmap(const char* filename); > > Dag> However, if the given filename doesn't refer to a valid bitmap file, > Dag> I get some strange X protocol error later on. > > Dag> QUESTION: How do I check that the created Bitmap object really refers > Dag> to a valid bitmap? > > The way I do it is to #include the bitmap sources and then use the > bitmap(void* data, int width, int height, int x0, int y0) with the > information supplied with the bitmap. This solution unfortunately doesn't work in my application. I have to read information about objects stored in a file; part of that information deals with graphical properties, including the name of a bitmap. The bitmap must be user-definable, so a fixed set of bitmaps compiled into the application is not good enough. Thanks for your suggestion anyway; it may be useful some other time. -- Dag