Digging version info out of WindowsTerminal.exe?

[vefatica]

Following examples from the online help, I'm using this code.

struct LANGANDCODEPAGE
{
	WORD wLanguage;
	WORD wCodePage;
} *lpTranslate;

WCHAR szFileName[] = L"v:\\wtpreview\\exe\\WindowsTerminal.exe";
DWORD	dwHandle, dwBufSize = GetFileVersionInfoSizeW(szFileName, &dwHandle);
LPVOID Buf = malloc(dwBufSize);
BOOL b = GetFileVersionInfoW(szFileName, 0, dwBufSize, Buf);
wprintf(L"GetFileVersionInfoW returned %s\n", b ? L"TRUE" : L"FALSE");
UINT uDataSize;
b = VerQueryValue(Buf, L"\\VarFileInfo\\Translation", (LPVOID*)&lpTranslate, &uDataSize);
wprintf(L"VerQueryValue returned %s\n", b ? L"TRUE" : L"FALSE");
if ( b == TRUE )
{
	wprintf(L"VerQueryValue gave %u bytes of data\nwLanguage = %04x\nwCodePage = %04x\n", uDataSize, lpTranslate[0].wLanguage, lpTranslate[0].wCodePage);
}

It produces this.

GetFileVersionInfoW returned TRUE
VerQueryValue returned TRUE
VerQueryValue gave 4 bytes of data
wLanguage = 0000
wCodePage = 04b0

That would seem to be wrong because (1) looking at the raw data (in Buf), and (2) looking at the Version resource with devenv, I see the string "040904b0".

The same code successfully gets wLanguage = 0409 out of the few other EXEs that I've tried.

And if I subsequently try to get "ProductVersion" like this

wsprintf(szQuery, L"\\StringFileInfo\\%04x%04x\\ProductVersion", lpTranslate[i].wLanguage, lpTranslate[i].wCodePage);
wprintf(L"Using query string: %s\n", szQuery);
b = VerQueryValueW(Buf, szQuery, &pVoid, &dwQueryDataSize);

It fails (GLE = 1813 (resource can't be found)). It succeeds if I use L"\StringFileInfo\040904b0\ProductVersion" giving me the string "1.6.210210002-release1.6".

Any ideas? Thanks!

[DHowett]

Check out the code here: https://github.com/microsoft/terminal/blob/main/src/cascadia/TerminalSettingsModel/CascadiaSettings.cpp#L921

There is something in our build system that produces the wrong version locale info, but because this is not an API contract we haven’t cared to fix it.

[vefatica]

Thanks. I'll look later. What's an "API contract"?

[DHowett]

That is to say, “if we break it or change it we never offered you specific support to begin with.” 😄

[vefatica]

I still don't understand. Let's drop it.