// SPDX-License-Identifier: Apache-2.0 // SPDX-FileCopyrightText: 2024 The Ebitengine Authors package hideconsole import ( "fmt" "golang.org/x/sys/windows" ) var ( kernel32 = windows.NewLazySystemDLL("kernel32.dll") user32 = windows.NewLazySystemDLL("user32.dll") procFreeConsoleWindow = kernel32.NewProc("FreeConsole") procGetConsoleWindow = kernel32.NewProc("GetConsoleWindow") ) func freeConsole() error { r, _, e := procFreeConsoleWindow.Call() if int32(r) == 0 { if e != nil && e != windows.ERROR_SUCCESS { return fmt.Errorf("FreeConsole failed: %w", e) } return fmt.Errorf("FreeConsole returned 0") } return nil } func getConsoleWindow() windows.HWND { r, _, _ := procGetConsoleWindow.Call() return windows.HWND(r) } // hideConsoleWindow will hide the console window that is showing when // compiling on Windows without specifying the '-ldflags "-Hwindowsgui"' flag. func hideConsoleWindow() { // In Xbox, GetWindowThreadProcessId might not exist. if user32.NewProc("GetWindowThreadProcessId").Find() != nil { return } pid := windows.GetCurrentProcessId() // Get the process ID of the console's creator. var cpid uint32 if _, err := windows.GetWindowThreadProcessId(getConsoleWindow(), &cpid); err != nil { // Even if closing the console fails, this is not harmful. // Ignore error. return } if pid == cpid { // The current process created its own console. Hide this. // Ignore error. _ = freeConsole() } } func init() { hideConsoleWindow() }