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comctl32: Don't crash when getting a bad image list handle.

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This commit is contained in:
Francois Gouget 2011-09-19 15:32:16 +02:00 committed by Alexandre Julliard
parent c46c47cbf3
commit 01378c5c8e
2 changed files with 27 additions and 3 deletions
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13
dlls/comctl32/imagelist.c
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@ -54,6 +54,7 @@
#include "commoncontrols.h"
#include "imagelist.h"
#include "wine/debug.h"
#include "wine/exception.h"
WINE_DEFAULT_DEBUG_CHANNEL(imagelist);
@ -3587,7 +3588,17 @@ static const IImageListVtbl ImageListImpl_Vtbl = {
static inline BOOL is_valid(HIMAGELIST himl)
{
return himl && himl->lpVtbl == &ImageListImpl_Vtbl;
BOOL valid;
__TRY
{
valid = himl && himl->lpVtbl == &ImageListImpl_Vtbl;
}
__EXCEPT_PAGE_FAULT
{
valid = FALSE;
}
__ENDTRY
return valid;
}
/*************************************************************************

17
dlls/comctl32/tests/imagelist.c
View file

@ -372,6 +372,8 @@ static void test_add_remove(void)
/* destroy it */
ok(ImageList_Destroy(himl),"destroy imagelist failed\n");
ok(-1==ImageList_AddIcon((HIMAGELIST)0xdeadbeef, hicon1),"don't crash on bad handle\n");
ok(DestroyIcon(hicon1),"icon 1 wasn't deleted\n");
ok(DestroyIcon(hicon2),"icon 2 wasn't deleted\n");
ok(DestroyIcon(hicon3),"icon 3 wasn't deleted\n");
@ -381,6 +383,8 @@ static void test_imagecount(void)
{
HIMAGELIST himl;
ok(0==ImageList_GetImageCount((HIMAGELIST)0xdeadbeef),"don't crash on bad handle\n");
if (!pImageList_SetImageCount)
{
win_skip("ImageList_SetImageCount not available\n");
@ -451,6 +455,8 @@ static void test_DrawIndirect(void)
ok(!pImageList_DrawIndirect(&imldp), "zero hdc succeeded!\n");
imldp.hdcDst = hdc;
ok(!pImageList_DrawIndirect(&imldp),"zero himl succeeded!\n");
imldp.himl = (HIMAGELIST)0xdeadbeef;
ok(!pImageList_DrawIndirect(&imldp),"bad himl succeeded!\n");
imldp.himl = himl;
REDRAW(hwndfortest);
@ -1752,11 +1758,15 @@ static void test_iconsize(void)
ok(cy == 0x1abe11ed, "got %d\n", cy);
ImageList_Destroy(himl);
ret = ImageList_GetIconSize((HIMAGELIST)0xdeadbeef, &cx, &cy);
ok(!ret, "got %d\n", ret);
}
static void test_create(void)
static void test_create_destroy(void)
{
HIMAGELIST himl;
BOOL rc;
/* list with zero or negative image dimensions */
himl = ImageList_Create(0, 0, ILC_COLOR16, 0, 3);
@ -1773,6 +1783,9 @@ static void test_create(void)
himl = ImageList_Create(-1, 16, ILC_COLOR16, 0, 3);
ok(himl == NULL, "got %p\n", himl);
rc = ImageList_Destroy((HIMAGELIST)0xdeadbeef);
ok(rc == FALSE, "ImageList_Destroy(0xdeadbeef) should fail and not crash\n");
}
static void test_IImageList_Clone(void)
@ -1912,7 +1925,7 @@ START_TEST(imagelist)
InitCommonControls();
test_create();
test_create_destroy();
test_hotspot();
test_add_remove();
test_imagecount();