[ros-diffs] [hbelusca] 70329: [CLIPBRD] Handle WM_PALETTECHANGED and WM_QUERYNEWPALETTE: realizes any palette found on the clipboard, if there is any, if it receives one of those messages.

Author: hbelusca
Date: Sat Dec 12 20:40:19 2015
New Revision: 70329

URL: http://svn.reactos.org/svn/reactos?rev=70329&view=rev
Log:
[CLIPBRD]
Handle WM_PALETTECHANGED and WM_QUERYNEWPALETTE: realizes any palette found on the clipboard, if there is any, if it receives one of those messages.

Modified:
    trunk/reactos/base/applications/clipbrd/clipbrd.c
    trunk/reactos/base/applications/clipbrd/winutils.c
    trunk/reactos/base/applications/clipbrd/winutils.h

Modified: trunk/reactos/base/applications/clipbrd/clipbrd.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/base/applications/clipbrd/c...
==============================================================================
--- trunk/reactos/base/applications/clipbrd/clipbrd.c	[iso-8859-1] (original)
+++ trunk/reactos/base/applications/clipbrd/clipbrd.c	[iso-8859-1] Sat Dec 12 20:40:19 2015
@@ -404,6 +404,30 @@
         case WM_DROPFILES:
         {
             LoadClipboardFromDrop((HDROP)wParam);
+            break;
+        }
+
+        case WM_QUERYNEWPALETTE:
+        {
+            if (RealizeClipboardPalette(hWnd) != GDI_ERROR)
+            {
+                InvalidateRect(hWnd, NULL, TRUE);
+                UpdateWindow(hWnd);
+                return TRUE;
+            }
+            return FALSE;
+        }
+
+        case WM_PALETTECHANGED:
+        {
+            if ((HWND)wParam != hWnd)
+            {
+                if (RealizeClipboardPalette(hWnd) != GDI_ERROR)
+                {
+                    InvalidateRect(hWnd, NULL, TRUE);
+                    UpdateWindow(hWnd);
+                }
+            }
             break;
         }

Modified: trunk/reactos/base/applications/clipbrd/winutils.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/base/applications/clipbrd/w...
==============================================================================
--- trunk/reactos/base/applications/clipbrd/winutils.c	[iso-8859-1] (original)
+++ trunk/reactos/base/applications/clipbrd/winutils.c	[iso-8859-1] Sat Dec 12 20:40:19 2015
@@ -156,3 +156,53 @@
     hEmf = GetClipboardData(CF_ENHMETAFILE);
     PlayEnhMetaFile(hdc, hEmf, lpRect);
 }
+
+UINT RealizeClipboardPalette(HWND hWnd)
+{
+    HPALETTE hPalette;
+    HPALETTE hOldPalette;
+    UINT uResult;
+    HDC hDevContext;
+
+    if (!OpenClipboard(NULL))
+    {
+        return GDI_ERROR;
+    }
+
+    if (!IsClipboardFormatAvailable(CF_PALETTE))
+    {
+        CloseClipboard();
+        return GDI_ERROR;
+    }
+
+    hPalette = GetClipboardData(CF_PALETTE);
+    if (!hPalette)
+    {
+        CloseClipboard();
+        return GDI_ERROR;
+    }
+
+    hDevContext = GetDC(hWnd);
+    if (!hDevContext)
+    {
+        CloseClipboard();
+        return GDI_ERROR;
+    }
+
+    hOldPalette = SelectPalette(hDevContext, hPalette, FALSE);
+    if (!hOldPalette)
+    {
+        ReleaseDC(hWnd, hDevContext);
+        CloseClipboard();
+        return GDI_ERROR;
+    }
+
+    uResult = RealizePalette(hDevContext);
+
+    SelectPalette(hDevContext, hOldPalette, FALSE);
+    ReleaseDC(hWnd, hDevContext);
+
+    CloseClipboard();
+
+    PlayEnhMetaFile(hdc, hEmf, lpRect);
+}

Modified: trunk/reactos/base/applications/clipbrd/winutils.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/base/applications/clipbrd/w...
==============================================================================
--- trunk/reactos/base/applications/clipbrd/winutils.h	[iso-8859-1] (original)
+++ trunk/reactos/base/applications/clipbrd/winutils.h	[iso-8859-1] Sat Dec 12 20:40:19 2015
@@ -15,3 +15,4 @@
 void SetDIBitsToDeviceFromClipboard(UINT uFormat, HDC hdc, int XDest, int YDest, int XSrc, int YSrc, UINT uStartScan, UINT fuColorUse);
 void PlayMetaFileFromClipboard(HDC hdc, const RECT *lpRect);
 void PlayEnhMetaFileFromClipboard(HDC hdc, const RECT *lpRect);
+UINT RealizeClipboardPalette(HWND hWnd);