comctl32/button: Use allocated structure to keep control data.

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

comctl32/button: Use allocated structure to keep control data.
6e550735 · Nikolay Sivov · Alexandre Julliard · 8874a6ec · 6e550735 · 6e550735
Commit 6e550735 authored Feb 15, 2018 by Nikolay Sivov Committed by Alexandre Julliard Feb 15, 2018
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button.c dlls/comctl32/button.c +0 -0

button.c dlls/comctl32/tests/button.c +4 -0

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--- a/dlls/comctl32/button.c
+++ b/dlls/comctl32/button.c
--- a/dlls/comctl32/tests/button.c
+++ b/dlls/comctl32/tests/button.c
@@ -729,10 +729,14 @@ static void test_button_class(void)
    ret = GetClassInfoExA(NULL, WC_BUTTONA, &exA);
    ok(ret, "got %d\n", ret);
    ok(IS_WNDPROC_HANDLE(exA.lpfnWndProc), "got %p\n", exA.lpfnWndProc);
+    ok(exA.cbClsExtra == 0, "Unexpected class bytes %d.\n", exA.cbClsExtra);
+    ok(exA.cbWndExtra == sizeof(void *), "Unexpected window bytes %d.\n", exA.cbWndExtra);

    ret = GetClassInfoExW(NULL, WC_BUTTONW, &exW);
    ok(ret, "got %d\n", ret);
    ok(!IS_WNDPROC_HANDLE(exW.lpfnWndProc), "got %p\n", exW.lpfnWndProc);
+    ok(exW.cbClsExtra == 0, "Unexpected class bytes %d.\n", exW.cbClsExtra);
+    ok(exW.cbWndExtra == sizeof(void *), "Unexpected window bytes %d.\n", exW.cbWndExtra);

    /* check that versioned class is also accessible */
    nameW = get_versioned_classname(WC_BUTTONW);