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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Call-a-foreign-language-function/FreeBASIC/call-a-foreign-language-function.basic Normal file
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' FB 1.05.0 Win64
'Using StrDup function in Shlwapi.dll
Dim As Any Ptr library = DyLibLoad("Shlwapi")
Dim strdup As Function (ByVal As Const ZString Ptr) As ZString Ptr
strdup = DyLibSymbol(library, "StrDupA")
'Using LocalFree function in kernel32.dll
Dim As Any Ptr library2 = DyLibLoad("kernel32")
Dim localfree As Function (ByVal As Any Ptr) As Any Ptr
localfree = DyLibSymbol(library2, "LocalFree")
Dim As ZString * 10 z = "duplicate" '' 10 characters including final zero byte
Dim As Zstring Ptr pcz = strdup(@z) '' pointer to the duplicate string
Print *pcz '' print duplicate string by dereferencing pointer
localfree(pcz) '' free the memory which StrDup allocated internally
pcz = 0 '' set pointer to null
DyLibFree(library) '' unload first dll
DyLibFree(library2) '' unload second fll
End