gdi32: Return registered monitor profile from GetICMProfile.

dlls/gdi32/icm.c

@@ -28,6 +28,7 @@
 #include "winbase.h"
 #include "wingdi.h"
 #include "winnls.h"
+#include "winreg.h"
 
 #include "wine/debug.h"
 #include "wine/unicode.h"
@@ -96,20 +97,37 @@ BOOL WINAPI GetICMProfileA(HDC hdc, LPDWORD size, LPSTR filename)
  */
 BOOL WINAPI GetICMProfileW(HDC hdc, LPDWORD size, LPWSTR filename)
 {
+    HKEY hkey;
     DWORD required;
-    WCHAR systemdir[MAX_PATH];
-    static const WCHAR profile[] =
+    WCHAR profile[MAX_PATH], fullname[MAX_PATH];
+    static const WCHAR path[] =
         {'\\','s','p','o','o','l','\\','d','r','i','v','e','r','s',
-         '\\','c','o','l','o','r','\\','s','R','G','B',' ','C','o','l','o','r',' ',
-         'S','p','a','c','e',' ','P','r','o','f','i','l','e','.','i','c','m',0};
+         '\\','c','o','l','o','r','\\',0};
+    static const WCHAR srgb[] =
+        {'s','R','G','B',' ','C','o','l','o','r',' ','S','p','a','c','e',' ',
+         'P','r','o','f','i','l','e','.','i','c','m',0};
+    static const WCHAR mntr[] =
+        {'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
+         'W','i','n','d','o','w','s',' ','N','T','\\','C','u','r','r','e','n','t',
+         'V','e','r','s','i','o','n','\\','I','C','M','\\','m','n','t','r',0};
 
     TRACE("%p, %p, %p\n", hdc, size, filename);
 
     if (!hdc || !size) return FALSE;
 
-    required  = GetSystemDirectoryW(systemdir, MAX_PATH);
-    required += sizeof(profile) / sizeof(WCHAR);
+    strcpyW(profile, srgb);
+    if (!RegCreateKeyExW(HKEY_LOCAL_MACHINE, mntr, 0, NULL, 0, KEY_ALL_ACCESS, NULL, &hkey, NULL))
+    {
+        DWORD size = sizeof(profile) / sizeof(WCHAR);
+        /* FIXME handle multiple values */
+        RegEnumValueW(hkey, 0, profile, &size, NULL, NULL, NULL, NULL);
+        RegCloseKey(hkey);
+    }
+    GetSystemDirectoryW(fullname, MAX_PATH);
+    strcatW(fullname, path);
+    strcatW(fullname, profile);
 
+    required = strlenW(fullname) + 1;
     if (*size < required)
     {
         *size = required;
@@ -118,9 +136,7 @@ BOOL WINAPI GetICMProfileW(HDC hdc, LPDWORD size, LPWSTR filename)
     }
     if (filename)
     {
-        strcpyW(filename, systemdir);
-        strcatW(filename, profile);
-
+        strcpyW(filename, fullname);
         if (GetFileAttributesW(filename) == INVALID_FILE_ATTRIBUTES)
             WARN("color profile not found\n");
     }