public static int SetWindowRgn(IHandle hwnd, Gdi32.HRGN hrgn, BOOL fRedraw)
{
int result = SetWindowRgn(hwnd.Handle, hrgn.Handle, fRedraw);
GC.KeepAlive(hwnd);
return(result);
}
public static RegionType GetWindowRgn(IHandle hwnd, Gdi32.HRGN hrgn)
{
RegionType result = GetWindowRgn(hwnd.Handle, hrgn);
GC.KeepAlive(hwnd);
return(result);
}
public static extern HRESULT GetThemeBackgroundRegion(
IntPtr hTheme,
Gdi32.HDC hdc,
int iPartId,
int iStateId,
ref RECT pRect,
out Gdi32.HRGN pRegion);
public static BOOL InvalidateRgn(IHandle hWnd, Gdi32.HRGN hrgn, BOOL erase)
{
BOOL result = InvalidateRgn(hWnd.Handle, hrgn, erase);
GC.KeepAlive(hWnd);
return(result);
}
public static HRESULT GetThemeBackgroundRegion(
IHandle hTheme,
Gdi32.HDC hdc,
int iPartId,
int iStateId,
ref RECT pRect,
out Gdi32.HRGN pRegion)
{
HRESULT hr = GetThemeBackgroundRegion(hTheme.Handle, hdc, iPartId, iStateId, ref pRect, out pRegion);
GC.KeepAlive(hTheme);
return(hr);
}
public unsafe static RECT[] GetRectsFromRegion(Gdi32.HRGN handle)
{
uint regionDataSize = Gdi32.GetRegionData(handle.Handle, 0, IntPtr.Zero);
if (regionDataSize == 0)
{
return(Array.Empty <RECT>());
}
byte[] buffer = ArrayPool <byte> .Shared.Rent((int)regionDataSize);
fixed(byte *b = buffer)
{
if (Gdi32.GetRegionData(handle.Handle, regionDataSize, (IntPtr)b) != regionDataSize)
{
return(Array.Empty <RECT>());
}
RECT[] result = GetRectsFromRegion((Gdi32.RGNDATAHEADER *)b);
ArrayPool <byte> .Shared.Return(buffer);
return(result);
}
}
private static extern RegionType GetWindowRgn(IntPtr hwnd, Gdi32.HRGN hrgn);
private static extern int GetRandomRgn(Gdi32.HDC hdc, Gdi32.HRGN hrgn, int i);
public static partial RegionType GetUpdateRgn(IntPtr hWnd, Gdi32.HRGN hRgn, BOOL bErase);
private static partial RegionType GetWindowRgn(IntPtr hwnd, Gdi32.HRGN hrgn);
private static partial BOOL InvalidateRgn(IntPtr hWnd, Gdi32.HRGN hrgn, BOOL erase);
public unsafe static BOOL RedrawWindow(IHandle hWnd, RECT *lprcUpdate = default, Gdi32.HRGN hrgnUpdate = default, RDW flags = default)
{
BOOL result = RedrawWindow(hWnd.Handle, lprcUpdate, hrgnUpdate, flags);
GC.KeepAlive(hWnd);
return(result);
}
public static unsafe partial BOOL RedrawWindow(IntPtr hWnd, RECT *lprcUpdate = default, Gdi32.HRGN hrgnUpdate = default, RDW flags = default);
public unsafe static BOOL RedrawWindow(HandleRef hWnd, RECT *lprcUpdate, Gdi32.HRGN hrgnUpdate, RDW flags) => RedrawWindow(hWnd, lprcUpdate, hrgnUpdate.Handle, flags);
private static extern BOOL InvalidateRgn(IntPtr hWnd, Gdi32.HRGN hrgn, BOOL erase);
