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Windows truncates windows coordinates at 16 bits when moving or 

resizing a window.
This commit is contained in:
Dmitry Timoshkov 2004-03-11 03:51:46 +00:00 committed by Alexandre Julliard
parent b16569ae17
commit 4edbbbd8ea
2 changed files with 72 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
dlls/user/tests/win.c
View File

@ -443,6 +443,41 @@ static LRESULT WINAPI main_window_procA(HWND hwnd, UINT msg, WPARAM wparam, LPAR
SetWindowLongA(hwnd, GWL_USERDATA, 0x20031021);
break;
}
case WM_WINDOWPOSCHANGING:
{
BOOL is_win9x = GetWindowLongW(hwnd, GWL_WNDPROC) == 0;
WINDOWPOS *winpos = (WINDOWPOS *)lparam;
trace("main: WM_WINDOWPOSCHANGING\n");
trace("%p after %p, x %d, y %d, cx %d, cy %d flags %08x\n",
winpos->hwnd, winpos->hwndInsertAfter,
winpos->x, winpos->y, winpos->cx, winpos->cy, winpos->flags);
if (!(winpos->flags & SWP_NOMOVE))
{
ok(winpos->x >= -32768 && winpos->x <= 32767, "bad winpos->x %d\n", winpos->x);
ok(winpos->y >= -32768 && winpos->y <= 32767, "bad winpos->y %d\n", winpos->y);
}
/* Win9x does not fixup cx/xy for WM_WINDOWPOSCHANGING */
if (!(winpos->flags & SWP_NOSIZE) && !is_win9x)
{
ok(winpos->cx >= 0 && winpos->cx <= 32767, "bad winpos->cx %d\n", winpos->cx);
ok(winpos->cy >= 0 && winpos->cy <= 32767, "bad winpos->cy %d\n", winpos->cy);
}
break;
}
case WM_WINDOWPOSCHANGED:
{
WINDOWPOS *winpos = (WINDOWPOS *)lparam;
trace("main: WM_WINDOWPOSCHANGED\n");
trace("%p after %p, x %d, y %d, cx %d, cy %d flags %08x\n",
winpos->hwnd, winpos->hwndInsertAfter,
winpos->x, winpos->y, winpos->cx, winpos->cy, winpos->flags);
ok(winpos->x >= -32768 && winpos->x <= 32767, "bad winpos->x %d\n", winpos->x);
ok(winpos->y >= -32768 && winpos->y <= 32767, "bad winpos->y %d\n", winpos->y);
ok(winpos->cx >= 0 && winpos->cx <= 32767, "bad winpos->cx %d\n", winpos->cx);
ok(winpos->cy >= 0 && winpos->cy <= 32767, "bad winpos->cy %d\n", winpos->cy);
break;
}
case WM_NCCREATE:
{
BOOL got_getminmaxinfo = GetWindowLongA(hwnd, GWL_USERDATA) == 0x20031021;
@ -1131,6 +1166,15 @@ static void test_icons(void)
ok( res == icon2, "wrong big icon after set %p/%p\n", res, icon2 );
}
static void test_SetWindowPos(HWND hwnd)
{
SetWindowPos(hwnd, 0, -32769, -40000, -32769, -90000, SWP_NOMOVE);
SetWindowPos(hwnd, 0, 32768, 40000, 32768, 40000, SWP_NOMOVE);
SetWindowPos(hwnd, 0, -32769, -40000, -32769, -90000, SWP_NOSIZE);
SetWindowPos(hwnd, 0, 32768, 40000, 32768, 40000, SWP_NOSIZE);
}
START_TEST(win)
{
pGetAncestor = (void *)GetProcAddress( GetModuleHandleA("user32.dll"), "GetAncestor" );
@ -1158,6 +1202,7 @@ START_TEST(win)
test_mdi();
test_icons();
test_SetWindowPos(hwndMain);
UnhookWindowsHookEx(hhook);
}

30
dlls/x11drv/winpos.c
View File

@ -720,6 +720,17 @@ static BOOL fixup_flags( WINDOWPOS *winpos )
}
winpos->hwnd = wndPtr->hwndSelf; /* make it a full handle */
/* Finally make sure that all coordinates are valid */
if (winpos->x < -32768) winpos->x = -32768;
else if (winpos->x > 32767) winpos->x = 32767;
if (winpos->y < -32768) winpos->y = -32768;
else if (winpos->y > 32767) winpos->y = 32767;
if (winpos->cx < 0) winpos->cx = 0;
else if (winpos->cx > 32767) winpos->cx = 32767;
if (winpos->cy < 0) winpos->cy = 0;
else if (winpos->cy > 32767) winpos->cy = 32767;
if (wndPtr->dwStyle & WS_VISIBLE) winpos->flags &= ~SWP_SHOWWINDOW;
else
{
@ -727,9 +738,6 @@ static BOOL fixup_flags( WINDOWPOS *winpos )
if (!(winpos->flags & SWP_SHOWWINDOW)) winpos->flags |= SWP_NOREDRAW;
}
if (winpos->cx < 0) winpos->cx = 0;
if (winpos->cy < 0) winpos->cy = 0;
if ((wndPtr->rectWindow.right - wndPtr->rectWindow.left == winpos->cx) &&
(wndPtr->rectWindow.bottom - wndPtr->rectWindow.top == winpos->cy))
winpos->flags |= SWP_NOSIZE; /* Already the right size */
@ -914,6 +922,22 @@ BOOL X11DRV_SetWindowPos( WINDOWPOS *winpos )
/* Check window handle */
if (winpos->hwnd == GetDesktopWindow()) return FALSE;
/* First make sure that coordinates are valid for WM_WINDOWPOSCHANGING */
if (!(winpos->flags & SWP_NOMOVE))
{
if (winpos->x < -32768) winpos->x = -32768;
else if (winpos->x > 32767) winpos->x = 32767;
if (winpos->y < -32768) winpos->y = -32768;
else if (winpos->y > 32767) winpos->y = 32767;
}
if (!(winpos->flags & SWP_NOSIZE))
{
if (winpos->cx < 0) winpos->cx = 0;
else if (winpos->cx > 32767) winpos->cx = 32767;
if (winpos->cy < 0) winpos->cy = 0;
else if (winpos->cy > 32767) winpos->cy = 32767;
}
if (!SWP_DoWinPosChanging( winpos, &newWindowRect, &newClientRect )) return FALSE;
/* Fix redundant flags */