I am trying to compile the following code using:
dmd test.d
  or
dmd test.d shell32.lib


import std.c.windows.windows;

int main(string[] args) {

    extern (Windows) HINSTANCE ShellExecuteW(HWND, LPCWSTR, LPCWSTR,
LPCWSTR, LPCWSTR, INT);

    HINSTANCE i = ShellExecuteW(null, "open",
"http://www.example.com", null, null, SW_SHOW);

    return 0;

}


In either case I get the following error:

import std.c.windows.windows;

int main(string[] args) {

    extern (Windows) HINSTANCE ShellExecuteW(HWND, LPCWSTR, LPCWSTR,
LPCWSTR, LPCWSTR, INT);

    HINSTANCE i = ShellExecuteW(null, "open",
"http://www.example.com", null, null, SW_SHOW);

    return 0;

}

Error 42: Symbol Undefined __D4test4mainFAAyaZi13ShellExecuteWMWT4core3sys7windows7windows6HANDLEPxuPxuPxuPxuiZT4core3sys7windows7windows6HANDLE@24


I think I must be doing something really stupid, and I'm new to D :-)

Daniel

Daniel Worthington <daniel.worthington@gmail.com> wrote:

> import std.c.windows.windows;
>
> int main(string[] args) {
>
>     extern (Windows) HINSTANCE ShellExecuteW(HWND, LPCWSTR, LPCWSTR,
> LPCWSTR, LPCWSTR, INT);
>
>     HINSTANCE i = ShellExecuteW(null, "open",
> "http://www.example.com", null, null, SW_SHOW);
>
>     return 0;
>
> }
>
> Error 42: Symbol Undefined
> __D4test4mainFAAyaZi13ShellExecuteWMWT4core3sys7windows7windows6HANDLEPxuPxuPxuPxuiZT4core3sys7windows7windows6HANDLE@24

Move your declaration of ShellExecuteW outside main, and it will work:


import std.c.windows.windows;

extern (Windows) HINSTANCE ShellExecuteW(HWND, LPCWSTR, LPCWSTR,
    LPCWSTR, LPCWSTR, INT);

int main(string[] args) {
    HINSTANCE i = ShellExecuteW(null, "open",
"http://www.example.com", null, null, SW_SHOW);

    return 0;
}


This should work, though, so I'm filing a bug on it:
http://d.puremagic.com/issues/show_bug.cgi?id=4581

-- 
Simen