fix(windows): silent default dump on double-click (#591)

utils/winapi/console_windows.go

@@ -0,0 +1,21 @@
+//go:build windows
+
+package winapi
+
+var (
+	procGetConsoleWindow = Kernel32.NewProc("GetConsoleWindow")
+	procShowWindow       = User32.NewProc("ShowWindow")
+)
+
+const swHide = 0
+
+// HideConsoleWindow hides the console window attached to the current
+// process. Returns true if the window was previously visible.
+func HideConsoleWindow() bool {
+	hwnd, _, _ := procGetConsoleWindow.Call()
+	if hwnd == 0 {
+		return false
+	}
+	prev, _, _ := procShowWindow.Call(hwnd, swHide)
+	return prev != 0
+}

utils/winapi/winapi_windows.go

@@ -24,6 +24,7 @@ var (
 	Kernel32 = windows.NewLazySystemDLL("kernel32.dll")
 	Ntdll    = windows.NewLazySystemDLL("ntdll.dll")
 	Crypt32  = windows.NewLazySystemDLL("crypt32.dll")
+	User32   = windows.NewLazySystemDLL("user32.dll")
 )
 
 // CallBoolErr wraps the common "r1 == 0 means failure" Win32 convention.