Support hide console window when running games on Windows

Cargo.lock

@@ -28,6 +28,7 @@ dependencies = [
  "derive_more",
  "getopts",
  "subprocess",
+ "winapi",
  "yaml-rust",
 ]
 

Cargo.toml

@@ -8,3 +8,6 @@ derive_more = "0.99.18"
 getopts = "0.2.21"
 subprocess = "0.2.9"
 yaml-rust = "0.4.5"
+
+[target.'cfg(windows)'.dependencies]
+winapi = { version = "0.3", features = ["wincon", "winuser"] }

src/cfg.rs

@@ -143,4 +143,11 @@ impl Config {
     pub fn rclone_flag(&self) -> Vec<String> {
         self.get_str_vec("rclone_flag").unwrap_or(vec![])
     }
+
+    #[cfg(windows)]
+    pub fn hide_window_when_running_exe(&self) -> bool {
+        self.get_bool("hide_window_when_running_exe")
+            .map(|s| s.to_owned())
+            .unwrap_or(true)
+    }
 }

src/main.rs

@@ -1,5 +1,7 @@
 mod cfg;
 mod utils;
+#[cfg(windows)]
+mod windows;
 
 use getopts::Options;
 use std::process::ExitCode;
@@ -187,7 +189,23 @@ impl Main {
             println!("Run command line: {:?}", cml);
             Ok(())
         } else {
+            #[cfg(windows)]
+            let need_hide = self._cfg.hide_window_when_running_exe();
+            #[cfg(windows)]
+            let hide = if need_hide {
+                windows::hide_window()
+            } else {
+                false
+            };
+            #[cfg(windows)]
+            if need_hide && !hide {
+                println!("Failed to hide console window.");
+            }
             let e = Self::call(cml)?;
+            #[cfg(windows)]
+            if hide {
+                windows::show_window();
+            }
             let ok = match &e {
                 ExitStatus::Exited(c) => *c == 0,
                 _ => false,

src/windows.rs

@@ -0,0 +1,19 @@
+use winapi::um::wincon::GetConsoleWindow;
+use winapi::um::winuser::{ShowWindow, SW_HIDE, SW_SHOW};
+
+fn console_show_window(n_cmd_show: i32) -> bool {
+    let h_wnd = unsafe { GetConsoleWindow() };
+    if h_wnd.is_null() {
+        println!("Failed to get console window.");
+        return false;
+    }
+    unsafe { ShowWindow(h_wnd, n_cmd_show) != 0 }
+}
+
+pub fn show_window() -> bool {
+    console_show_window(SW_SHOW)
+}
+
+pub fn hide_window() -> bool {
+    console_show_window(SW_HIDE)
+}