user32: Select text control content while setting dialog focus.

dlls/user32/dialog.c

@@ -707,7 +707,11 @@ static HWND DIALOG_CreateIndirect( HINSTANCE hInst, LPCVOID dlgTemplate,
                 focus = GetNextDlgTabItem( hwnd, 0, FALSE );
                 if (!focus) focus = GetNextDlgGroupItem( hwnd, 0, FALSE );
                 if (focus)
+                {
+                    if (SendMessageW( focus, WM_GETDLGCODE, 0, 0 ) & DLGC_HASSETSEL)
+                        SendMessageW( focus, EM_SETSEL, 0, MAXLONG );
                     SetFocus( focus );
+                }
             }
         }
 

dlls/user32/tests/dialog.c

@@ -786,7 +786,8 @@ static INT_PTR CALLBACK focusDlgWinProc (HWND hDlg, UINT uiMsg, WPARAM wParam,
     switch (uiMsg)
     {
     case WM_INITDIALOG:
-       return TRUE;
+        SetWindowTextA(GetDlgItem(hDlg, 200), "new caption");
+        return TRUE;
 
     case WM_COMMAND:
        if (LOWORD(wParam) == 200)
@@ -958,6 +959,34 @@ static void test_focus(void)
 
         DestroyWindow(hDlg);
     }
+
+    /* Test 5:
+     * Select textbox's text on creation */
+    {
+        HWND hDlg;
+        HRSRC hResource;
+        HANDLE hTemplate;
+        DLGTEMPLATE* pTemplate;
+        HWND edit;
+        DWORD selectionStart = 0xdead, selectionEnd = 0xbeef;
+
+        hResource = FindResourceA(g_hinst,"FOCUS_TEST_DIALOG_3", (LPCSTR)RT_DIALOG);
+        hTemplate = LoadResource(g_hinst, hResource);
+        pTemplate = LockResource(hTemplate);
+
+        hDlg = CreateDialogIndirectParamA(g_hinst, pTemplate, NULL, focusDlgWinProc, 0);
+        ok(hDlg != 0, "Failed to create test dialog.\n");
+        edit = GetDlgItem(hDlg, 200);
+
+        ok(GetFocus() == edit, "Focus not set to edit, focus=%p, dialog=%p, edit=%p\n",
+                GetFocus(), hDlg, edit);
+        SendMessageA(edit, EM_GETSEL, (WPARAM)&selectionStart, (LPARAM)&selectionEnd);
+        ok(selectionStart == 0 && selectionEnd == 11,
+                "Text selection after WM_SETFOCUS is [%i, %i) expected [0, 11)\n",
+                selectionStart, selectionEnd);
+
+        DestroyWindow(hDlg);
+    }
 }
 
 static void test_GetDlgItemText(void)

dlls/user32/tests/resource.rc

@@ -107,6 +107,14 @@ FONT 8, "MS Shell Dlg"
   LTEXT "Hello world",    200,4,4,50,14
 }
 
+FOCUS_TEST_DIALOG_3 DIALOG 0, 0, 60, 30
+STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
+CAPTION "Test dialog"
+FONT 8, "MS Shell Dlg"
+{
+  EDITTEXT                200,4,4,50,14
+}
+
 IDD_DIALOG DIALOG  0, 0, 186, 95
 STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
 CAPTION "Dialog"