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Windows API: Using LoadLibrary and FreeLibary to dynamically call external procedures
2004-03-04 -- Andy Ireland
 
Newsgroups: softvelocity.public.clarion6 Hi Robert, > Can you help me do that, or point me to the right direction on how to do > that? Yeah load the DLL using LoadLibrary / FreeLibrary Get the addresses to the functions using GetProcAddress Bind to functions like so.... map module('typedefs') ! This would be the API declarion for each function TestFunc::type(),long,type,pascal end module('aliases') ! a long ptr alias over the Func type decl below TestFunc(long pf, ),long,name('__TestFunc'),pascal end module('mymodule') TestFunc(TestFunc::type pf, ),long,name('__TestFunc'),pascal end end TestFunc procedure(TestFunc::type pfTestFunc, ) code return pfTestFunc() compile('Unicode', _Unicode_) pf = __GetProcAddress(hModule, szFuncW) Unicode omit('Ansi', _Unicode_) pf = __GetProcAddress(hModule, szFuncA) Ansi ? assert(pf) if ~pf return 0. fSuccessful = true return TestFunc(pf, ) The two overloaded defs allow you to pass the function address instead of a clartion function type to the stub that makes the actual call to the function in the Mapi32 DLL. Regards Andy

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