How would I know or check to see if I have the correct libraries installed to access certain header files, classes and functions. For example, I try to use GDI+ to display an image, the page from msdn told me I need gdiplus.lib imported and include gdiplus.h. Whenever I #include gdiplus.h I get an error message saying that file does not exist. How do I check and import the library if necessary. For future reference, how do I check for other libraries and functions as well???????