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Home » Developing U++ » UppHub » A terminal emulator widget for U++
Compile problem on WIN10 [message #58812 is a reply to message #51415] Tue, 13 September 2022 15:15 Go to previous messageGo to previous message
peterh is currently offline  peterh
Messages: 108
Registered: November 2018
Location: Germany
Experienced Member
Hi, I tried TerminalLayoutExample and some other Examples.

These show a compilation error on WIN 10. It doesnt matter if I use CLang or MSVC.

HANDLE WinPtyCreateProcess(const char *cmdptr, const char *envptr, const char *cd, winpty_t* hConsole)
{
	Buffer<wchar> cmd, env;
	sCmdToUnicode(cmd, cmdptr);
	sEnvToUnicode(env, envptr);

	auto hSpawnConfig = winpty_spawn_config_new(
		WINPTY_SPAWN_FLAG_AUTO_SHUTDOWN,
		cmd,                          //error here
		nullptr,
		cd ? ~WString(cd) : nullptr,  //error here
		env,                          //error here
		nullptr);

C:\upp\UppHub\TerminalCtrl\PtyProcess\Win32Pty.cpp (104): error: no matching function for call to 'winpty_spawn_config_new'
 (): auto hSpawnConfig = winpty_spawn_config_new(
C:\upp\UppHub\TerminalCtrl\PtyProcess/lib/include/winpty.h (170): note: candidate function not viable: no known conversion from 'Buffer<Upp::wchar>' (aka 'Buffer<unsigned long>') to 'LPCWSTR' (aka 'const wchar_t *') for 2nd argument
 (): winpty_spawn_config_new(UINT64 spawnFlags,
 (): 1 error generated.


It cannot convert from Buffer<wchar> to LPCWSTR.
I tried to fix it, but no sucess.

My C++ and Upp knowledge is very limited, C knowledge is pretty good.
It happens with Build 16324 and with the stable Build.
Edit:
I can compile it by this modification:
	auto hSpawnConfig = winpty_spawn_config_new(
		WINPTY_SPAWN_FLAG_AUTO_SHUTDOWN,
		(wchar_t *) ~cmd,
		nullptr,
		(wchar_t *) (cd ? ~WString(cd) : nullptr),
		(wchar_t *) ~env,
		nullptr);

Then it compiles and runs, it opens a window, and closes it immediately without any error message.
I dont think this is the intended behaviour.

[Updated on: Tue, 13 September 2022 18:39]

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