fix: check if dwm is enabled before adding shadows

tauri-apps · Oct 5, 2021 · 84a9556 · 84a9556
1 parent d0c31d6
commit 84a9556
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Showing 3 changed files with 10 additions and 4 deletions.
diff --git a/.changes/check-dwm-enabled.md b/.changes/check-dwm-enabled.md
@@ -0,0 +1,4 @@
+---
+"win7-notifications": patch
+---
+Check if DWM is enabled or not before adding shadows.
diff --git a/build.rs b/build.rs
@@ -9,7 +9,7 @@ fn main() {
       Windows::Win32::System::Com::{CoCreateInstance, CoInitialize},
       Windows::Win32::System::Diagnostics::Debug::MessageBeep,
       Windows::Win32::Graphics::Gdi::*,
-      Windows::Win32::Graphics::Dwm::{DwmExtendFrameIntoClientArea},
+      Windows::Win32::Graphics::Dwm::{DwmExtendFrameIntoClientArea,DwmIsCompositionEnabled},
       Windows::Win32::UI::Shell::{ITaskbarList, TaskbarList},
       Windows::Win32::UI::Controls::*,
       Windows::Win32::UI::WindowsAndMessaging::*,

diff --git a/src/notification.rs b/src/notification.rs
@@ -181,9 +181,11 @@ impl Notification {
       active_noti.push(hwnd);
 
       // shadows
-      let mut margins = Controls::MARGINS::default();
-      margins.cxLeftWidth = 1;
-      Dwm::DwmExtendFrameIntoClientArea(hwnd, &margins)?;
+      if Dwm::DwmIsCompositionEnabled()?.as_bool() {
+        let mut margins = Controls::MARGINS::default();
+        margins.cxLeftWidth = 1;
+        Dwm::DwmExtendFrameIntoClientArea(hwnd, &margins)?;
+      }
 
       util::skip_taskbar(hwnd)?;
       w32wm::ShowWindow(hwnd, w32wm::SW_SHOW);