diff options
Diffstat (limited to 'src/wndproc.c')
| -rw-r--r-- | src/wndproc.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/src/wndproc.c b/src/wndproc.c index cf75463..f639f4b 100644 --- a/src/wndproc.c +++ b/src/wndproc.c @@ -54,6 +54,7 @@ int blur = 0; PFNDWMENABLEBLURBEHINDWINDOW pDwmEnableBlurBehindWindow = NULL; +PFNSETWINDOWCOMPOSITIONATTRIBUTE pSetWindowCompositionAttribute = NULL; /* * ValidateSizing - Ensures size request respects hints @@ -293,9 +294,18 @@ static void CheckForAlpha(HWND hWnd, xcwm_image_t *image) { /* image has alpha and we can do something useful with it? */ - if ((image->image->depth == 32) && pDwmEnableBlurBehindWindow) + /* XXX: only need to do this once per window */ + if (image->image->depth == 32) + { + if (pSetWindowCompositionAttribute) + { + /* This turns on DWM looking at the alpha-channel of this window */ + ACCENTPOLICY policy = { ACCENT_ENABLE_BLURBEHIND, 0, 0, 0 } ; + WINCOMPATTR data = { WCA_ACCENT_POLICY, &policy, sizeof(ACCENTPOLICY) }; + pSetWindowCompositionAttribute(hWnd, &data); + } + else if(pDwmEnableBlurBehindWindow) { - /* XXX: only do this once, for each window */ HRGN dummyRegion = NULL; /* restricting the blur effect to a dummy region means the rest is unblurred */ @@ -303,7 +313,7 @@ CheckForAlpha(HWND hWnd, xcwm_image_t *image) dummyRegion = CreateRectRgn(-1, -1, 0, 0); DWM_BLURBEHIND bbh; - bbh.dwFlags = DWM_BB_ENABLE | DWM_BB_BLURREGION |DWM_BB_TRANSITIONONMAXIMIZED; + bbh.dwFlags = DWM_BB_ENABLE | DWM_BB_BLURREGION | DWM_BB_TRANSITIONONMAXIMIZED; bbh.fEnable = TRUE; bbh.hRgnBlur = dummyRegion; bbh.fTransitionOnMaximized = TRUE; /* What does this do ??? */ @@ -313,11 +323,12 @@ CheckForAlpha(HWND hWnd, xcwm_image_t *image) // This terribly-named function actually controls if DWM looks at the alpha channel of this window HRESULT rc = pDwmEnableBlurBehindWindow(hWnd, &bbh); if (rc != S_OK) - fprintf(stderr, "DwmEnableBlurBehindWindow failed: %d\n", (int) GetLastError()); + fprintf(stderr, "DwmEnableBlurBehindWindow failed: %x, %d\n", rc, (int) GetLastError()); if (dummyRegion) DeleteObject(dummyRegion); } + } } static void @@ -650,7 +661,7 @@ winApplyStyle(xcwm_window_t *window) if (zstyle == HWND_NOTOPMOST) flags |= SWP_NOZORDER | SWP_NOOWNERZORDER; - if (!pDwmEnableBlurBehindWindow) + if (!pDwmEnableBlurBehindWindow && !pSetWindowCompositionAttribute) { /* On XP, it seems we have to do an elaborate, performance killing |