Add basic support for dwmapi and ANIMATIONINFO (#329)

* Add basic dwmapi for retrieving window attributes

* Add ANIMATIONINFO structure

* Add missing constants for HRGN types

* Fix compile and link errors in shcore lib

* Fix compile errors in dwmapi, wingdi, winuser

lib/dwmapi/src/lib.rs

@@ -18,7 +18,8 @@ extern "system" {
     // pub fn DwmGetGraphicsStreamClient();
     // pub fn DwmGetGraphicsStreamTransformHint();
     // pub fn DwmGetTransportAttributes();
-    // pub fn DwmGetWindowAttribute();
+    pub fn DwmGetWindowAttribute(hWnd: HWND, dwAttribute: DWORD, pvAttribute: LPVOID,
+                                 cbAttribute: DWORD) -> HRESULT;
     // pub fn DwmInvalidateIconicBitmaps();
     // pub fn DwmIsCompositionEnabled();
     // pub fn DwmModifyPreviousDxFrameDuration();

lib/shcore/src/lib.rs

@@ -5,9 +5,9 @@
 extern crate winapi;
 use winapi::*;
 extern "system" {
-    pub fn GetDpiForMonitor(hmonitor: HMONITOR, dpiType: MONITOR_DPI_TYPE, dpiX: *UINT, dpiY: *UINT) -> HRESULT
+    pub fn GetDpiForMonitor(hmonitor: HMONITOR, dpiType: MONITOR_DPI_TYPE, dpiX: *mut UINT, dpiY: *mut UINT) -> HRESULT;
     pub fn GetDpiForShellUiComponent(component: SHELL_UI_COMPONENT) -> UINT;
-    pub fn GetProcessDPIAwareness(hProcess: HANDLE, value: *PROCESS_DPI_AWARENESS) -> HRESULT;
+    pub fn GetProcessDPIAwareness(hProcess: HANDLE, value: *mut PROCESS_DPI_AWARENESS) -> HRESULT;
     pub fn SetProcessDPIAwareness(value: PROCESS_DPI_AWARENESS) -> HRESULT;
     pub fn LogicalToPhysicalPointForPerMonitorDPI(hwnd: HWND, lpPoint: LPPOINT) -> BOOL;
     pub fn PhysicalToLogicalPointForPerMonitorDPI(hwnd: HWND, lpPoint: LPPOINT) -> BOOL;

src/um/dwmapi.rs

@@ -9,3 +9,20 @@ STRUCT!{struct DWM_BLURBEHIND {
     hRgnBlur: HRGN,
     fTransitionOnMaximized: BOOL,
 }}
+
+pub const DWMWA_NCRENDERING_ENABLED: DWORD = 1;
+pub const DWMWA_NCRENDERING_POLICY: DWORD = 2;
+pub const DWMWA_TRANSITIONS_FORCEDISABLED: DWORD = 2;
+pub const DWMWA_ALLOW_NCPAINT: DWORD = 4;
+pub const DWMWA_CAPTION_BUTTON_BOUNDS: DWORD = 5;
+pub const DWMWA_NONCLIENT_RTL_LAYOUT: DWORD = 6;
+pub const DWMWA_FORCE_ICONIC_REPRESENTATION: DWORD = 7;
+pub const DWMWA_FLIP3D_POLICY: DWORD = 8;
+pub const DWMWA_EXTENDED_FRAME_BOUNDS: DWORD = 9;
+pub const DWMWA_HAS_ICONIC_BITMAP: DWORD = 10;
+pub const DWMWA_DISALLOW_PEEK: DWORD = 11;
+pub const DWMWA_EXCLUDED_FROM_PEEK: DWORD = 12;
+pub const DWMWA_CLOAK: DWORD = 13;
+pub const DWMWA_CLOAKED: DWORD = 14;
+pub const DWMWA_FREEZE_REPRESENTATION: DWORD = 15;
+pub const DWMWA_LAST: DWORD = 16;

src/um/wingdi.rs

@@ -1249,3 +1249,8 @@ pub const META_CREATEPENINDIRECT: WORD = 0x02FA;
 pub const META_CREATEFONTINDIRECT: WORD = 0x02FB;
 pub const META_CREATEBRUSHINDIRECT: WORD = 0x02FC;
 pub const META_CREATEREGION: WORD = 0x06FF;
+pub const ERROR: c_int = 0;
+pub const NULLREGION: c_int = 1;
+pub const SIMPLEREGION: c_int = 2;
+pub const COMPLEXREGION: c_int = 3;
+pub const RGN_ERROR: c_int = ERROR;

src/um/winuser.rs

@@ -2444,3 +2444,13 @@ pub const TPM_VERNEGANIMATION: UINT = 0x2000;
 pub const TPM_NOANIMATION: UINT = 0x4000;
 pub const TPM_LAYOUTRTL: UINT = 0x8000;
 pub const TPM_WORKAREA: UINT = 0x10000;
+
+// ANIMATIONINFO and related fields
+STRUCT!{struct ANIMATIONINFO {
+    cbSize: UINT,
+    iMinAnimate: c_int,
+}}
+pub type LPANIMATIONINFO = *mut ANIMATIONINFO;
+pub const SPIF_UPDATEINIFILE: UINT = 0x0001;
+pub const SPIF_SENDWININICHANGE: UINT = 0x0002;
+pub const SPIF_SENDCHANGE: UINT = SPIF_SENDWININICHANGE;