WinAPI is most widely used as external functions in PowerBuilder.

WinAPI constants

PBInvoke provides an object with many WinAPI constants, n_pi_winapi. The constants can be used without instantiation of the object via syntax:

n_pi_winapi.CONSTANT_NAME

Example:

lnv_SendMessage.of_invoke(Handle(w_win), n_pi_winapi.WM_KEYDOWN, 9 /*Tab*/, 0)

WinAPI types

PBInvoke has built-in support for the following WinAPI types:

TCHAR, TSTR, LPTSTR, LPCTSTR, WCHAR, WSTR, LPWSTR, LPCWSTR, CHAR, STR, LPSTR, LPCSTR, BYTE,BOOL, HWND, HINSTANCE, LPBOOL, INT, UINT, UINT_PTR, DWORD, LPDWORD, HANDLE, LRESULT, LONG, ULONG, WPARAM, LPARAM, HMODULE, HHOOK, WORD, LPWORD, SHORT, USHORT, VOID, PVOID, LPVOID, LPCVOID, FLOAT, LPSECURITY_ATTRIBUTES

See also