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Exposing STARTUPINFOW.wShowWindow in CommandExt (show_window function) to control how a new process should display its window (normal, minimized, maximized, etc)

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This commit is contained in:
Andres Olivares 2024-06-19 10:15:50 -04:00
parent 7d640b670e
commit 06d76c3156
2 changed files with 22 additions and 0 deletions
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12
library/std/src/os/windows/process.rs
View File

@ -181,6 +181,13 @@ pub trait CommandExt: Sealed {
#[stable(feature = "windows_process_extensions", since = "1.16.0")] #[stable(feature = "windows_process_extensions", since = "1.16.0")]
fn creation_flags(&mut self, flags: u32) -> &mut process::Command; fn creation_flags(&mut self, flags: u32) -> &mut process::Command;
/// Sets the field [wShowWindow][1] of [STARTUPINFO][2] that is passed to `CreateProcess`.
///
/// [1]: https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-showwindow
/// [2]: https://learn.microsoft.com/es-es/windows/win32/api/processthreadsapi/ns-processthreadsapi-startupinfow
#[unstable(feature = "windows_process_extensions_show_window", issue = "none")]
fn show_window(&mut self, cmd_show: u16) -> &mut process::Command;
/// Forces all arguments to be wrapped in quote (`"`) characters. /// Forces all arguments to be wrapped in quote (`"`) characters.
/// ///
/// This is useful for passing arguments to [MSYS2/Cygwin][1] based /// This is useful for passing arguments to [MSYS2/Cygwin][1] based
@ -370,6 +377,11 @@ impl CommandExt for process::Command {
self self
} }
fn show_window(&mut self, cmd_show: u16) -> &mut process::Command {
self.as_inner_mut().show_window(Some(cmd_show));
self
}
fn force_quotes(&mut self, enabled: bool) -> &mut process::Command { fn force_quotes(&mut self, enabled: bool) -> &mut process::Command {
self.as_inner_mut().force_quotes(enabled); self.as_inner_mut().force_quotes(enabled);
self self

10
library/std/src/sys/pal/windows/process.rs
View File

@ -163,6 +163,7 @@ pub struct Command {
env: CommandEnv, env: CommandEnv,
cwd: Option<OsString>, cwd: Option<OsString>,
flags: u32, flags: u32,
show_window: Option<u16>,
detach: bool, // not currently exposed in std::process detach: bool, // not currently exposed in std::process
stdin: Option<Stdio>, stdin: Option<Stdio>,
stdout: Option<Stdio>, stdout: Option<Stdio>,
@ -194,6 +195,7 @@ impl Command {
env: Default::default(), env: Default::default(),
cwd: None, cwd: None,
flags: 0, flags: 0,
show_window: None,
detach: false, detach: false,
stdin: None, stdin: None,
stdout: None, stdout: None,
@ -224,6 +226,9 @@ impl Command {
pub fn creation_flags(&mut self, flags: u32) { pub fn creation_flags(&mut self, flags: u32) {
self.flags = flags; self.flags = flags;
} }
pub fn show_window(&mut self, cmd_show: Option<u16>) {
self.show_window = cmd_show;
}
pub fn force_quotes(&mut self, enabled: bool) { pub fn force_quotes(&mut self, enabled: bool) {
self.force_quotes_enabled = enabled; self.force_quotes_enabled = enabled;
@ -337,6 +342,11 @@ impl Command {
si.hStdError = stderr.as_raw_handle(); si.hStdError = stderr.as_raw_handle();
} }
if let Some(cmd_show) = self.show_window {
si.dwFlags |= c::STARTF_USESHOWWINDOW;
si.wShowWindow = cmd_show;
}
let si_ptr: *mut c::STARTUPINFOW; let si_ptr: *mut c::STARTUPINFOW;
let mut proc_thread_attribute_list; let mut proc_thread_attribute_list;