Update windows dependency (#213)

Cargo.toml

@@ -76,7 +76,7 @@ smoltcp = { git = 'https://github.com/smoltcp-rs/smoltcp', rev = 'ef67e7b46cabf4
 boringtun = { git = 'https://github.com/cloudflare/boringtun', rev = 'e3252d9c4f4c8fc628995330f45369effd4660a1' }
 
 [target.'cfg(windows)'.dependencies.windows]
-version = "0.57.0"
+version = "0.58.0"
 features = [
     "Win32_Foundation",
     "Win32_Graphics_Dwm",

src/packet_sources/windows.rs

@@ -79,15 +79,15 @@ impl PacketSourceConf for WindowsConf {
         };
 
         if cfg!(debug_assertions) {
-            if result.0 <= 32 {
+            if result.0 as u32 <= 32 {
                 let err = windows::core::Error::from_win32();
                 log::warn!("Failed to start child process: {}", err);
             }
-        } else if result.0 == SE_ERR_ACCESSDENIED as isize {
+        } else if result.0 as u32 == SE_ERR_ACCESSDENIED {
             return Err(anyhow!(
                 "Failed to start the interception process as administrator."
             ));
-        } else if result.0 <= 32 {
+        } else if result.0 as u32 <= 32 {
             let err = windows::core::Error::from_win32();
             return Err(anyhow!("Failed to start the executable: {}", err));
         }

src/processes/windows_icons.rs

@@ -134,8 +134,8 @@ unsafe fn icon_to_pixels(icon: HICON) -> PixelData {
     let buf_size = width_usize.checked_mul(height_usize).unwrap();
     let mut buf: Vec<u32> = Vec::with_capacity(buf_size);
 
-    let dc = GetDC(HWND(0));
-    assert!(dc != HDC(0));
+    let dc = GetDC(HWND(std::ptr::null_mut()));
+    assert!(dc != HDC(std::ptr::null_mut()));
 
     let mut bitmap_info = BITMAPINFOHEADER {
         biSize: biheader_size_u32,
@@ -162,7 +162,7 @@ unsafe fn icon_to_pixels(icon: HICON) -> PixelData {
     assert!(result == bitmap.bmHeight);
     buf.set_len(buf.capacity());
 
-    let result = ReleaseDC(HWND(0), dc);
+    let result = ReleaseDC(HWND(std::ptr::null_mut()), dc);
     assert!(result == 1);
     DeleteObject(info.hbmColor).unwrap();