VC常用代码之动态加载DLL

根据MSDN：

1. //File:RUNTIME.C
2. //AsimpleprogramthatusesLoadLibraryand
3. //GetProcAddresstoaccessmyPutsfromMYPUTS.DLL.
5. #include<stdio.h>
6. #include<windows.h>
8. typedefVOID(*MYPROC)(LPTSTR);
10. VOIDmain(VOID)
11. {
12. HINSTANCEhinstLib;
13. MYPROCProcAdd;
14. BOOLfFreeResult,fRunTimeLinkSuccess=FALSE;
16. //GetahandletotheDLLmodule.
18. hinstLib=LoadLibrary("myputs");
20. //Ifthehandleisvalid,trytogetthefunctionaddress.
22. if(hinstLib!=NULL)
23. {
24. ProcAdd=(MYPROC)GetProcAddress(hinstLib,"myPuts");
26. //Ifthefunctionaddressisvalid,callthefunction.
28. if(fRunTimeLinkSuccess=(ProcAdd!=NULL))
29. (ProcAdd)("messageviaDLLfunction\n");
31. //FreetheDLLmodule.
33. fFreeResult=FreeLibrary(hinstLib);
34. }
36. //IfunabletocalltheDLLfunction,useanalternative.
38. if(!fRunTimeLinkSuccess)
39. printf("messageviaalternativemethod\n");
40. }

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