User32ValidateRect(SafeHandle, Rectangle) Method
Validates the client area within a rectangle by removing the rectangle from the update region of the specified window.
Namespace: DevCase.Win32.NativeMethodsAssembly: DevCase.net48 (in DevCase.net48.dll) Version: 6.0.0.0 (6.0)
XMLNS for XAML: Not mapped to an xmlns.
[DllImportAttribute("User32.dll", SetLastError = true)]
public static bool ValidateRect(
SafeHandle hWnd,
ref Rectangle refRect
)
<DllImportAttribute("User32.dll", SetLastError := true>]
Public Shared Function ValidateRect (
hWnd As SafeHandle,
ByRef refRect As Rectangle
) As Boolean
Dim hWnd As SafeHandle
Dim refRect As Rectangle
Dim returnValue As Boolean
returnValue = User32.ValidateRect(hWnd,
refRect)
public:
[DllImportAttribute(L"User32.dll", SetLastError = true)]
static bool ValidateRect(
SafeHandle^ hWnd,
Rectangle% refRect
)
[<DllImportAttribute("User32.dll", SetLastError = true)>]
static member ValidateRect :
hWnd : SafeHandle *
refRect : Rectangle byref -> bool
No code example is currently available or this language may not be supported.
- hWnd SafeHandle
-
A handle to the window whose update region is to be modified.
If this parameter is Zero, the system invalidates and redraws all windows
and sends the WM_EraseBkgnd and WM_NcPaint messages
to the window procedure before the function returns.
- refRect Rectangle
-
A Rectangle structure that contains the client coordinates of the
rectangle to be removed from the update region.
If this parameter is , the entire client area is removed.
Boolean
If the function succeeds, the return value is
.
If the function fails, the return value is
.
To get extended error information, call
GetLastWin32Error.