Changeset 7097 for trunk/src

Timestamp:

Oct 17, 2001, 5:16:58 PM (24 years ago)

Author:

phaller

Message:

Minor performance enhancement for window mgmt functions (GetWindowFromHandle)

Location:

trunk/src/user32

Files:

• win32wbase.cpp (modified) (2 diffs)
• win32wndhandle.cpp (modified) (2 diffs)

trunk/src/user32/win32wbase.cpp

@@ -1 @@
-/* $Id: win32wbase.cpp,v 1.291 2001-10-17 14:30:09 sandervl Exp $ */
+/* $Id: win32wbase.cpp,v 1.292 2001-10-17 15:16:57 phaller Exp $ */
 /*
  * Win32 Window Base Class for OS/2
@@ -81 +81 @@
 static int iMenuSysKey = 0;
 
+
+
+/***
+ * Performance Optimization:
+ * we're directly inlining this micro function from win32wndhandle.cpp.
+ * Changes there must be reflected here.
+ ***/
+extern ULONG WindowHandleTable[MAX_WINDOW_HANDLES];
+
+BOOL INLINE i_HwGetWindowHandleData(HWND hwnd, DWORD *pdwUserData)
+{
+  if((hwnd & 0xFFFF0000) != WNDHANDLE_MAGIC_HIGHWORD) {
+        return FALSE; //unknown window (PM?)
+  }
+  hwnd &= WNDHANDLE_MAGIC_MASK;
+  if(hwnd < MAX_WINDOW_HANDLES) {
+        *pdwUserData = WindowHandleTable[hwnd];
+        return TRUE;
+  }
+  *pdwUserData = 0;
+  return FALSE;
+}
+#define HwGetWindowHandleData(a,b) i_HwGetWindowHandleData(a,b)
+
+
 //******************************************************************************
 //******************************************************************************

trunk/src/user32/win32wndhandle.cpp

@@ -1 @@
-/* $Id: win32wndhandle.cpp,v 1.9 2001-05-11 08:39:46 sandervl Exp $ */
+/* $Id: win32wndhandle.cpp,v 1.10 2001-10-17 15:16:58 phaller Exp $ */
 /*
  * Win32 Handle Management Code for OS/2
@@ -81 +81 @@
 //******************************************************************************
 //******************************************************************************
+/* 2001-10-17 PH
+ * Note: this function is repeated as "inline macro" in win32wbase.cpp.
+ * Changes here must be reflected there, tool.
+ */
 BOOL HwGetWindowHandleData(HWND hwnd, DWORD *pdwUserData)
 {