private void ExtendClientArea()
{
// This native method extends non-client area. If you want to draw on whole window,
// search for tutorial about it on CodeProject, that involves handling WM_NCCALCSIZE.
var margin = new NativeMargin(0, 64, 0, 0);
NativeMethods.DwmExtendFrameIntoClientArea(this.Handle, ref margin);
}
/// <summary>
/// Extends a windows frame into the client area of the window.
/// </summary>
/// <param name="hwnd">A IntPtr representing the handle of a window.</param>
public static void ExtendFrameIntoClientArea(IntPtr hwnd)
{
var margin = new NativeMargin
{
cxLeftWidth = -1,
cxRightWidth = -1,
cyBottomHeight = -1,
cyTopHeight = -1
};
DwmApi.DwmExtendFrameIntoClientArea(hwnd, ref margin);
}
/// <summary>
/// Extends the frame into client area.
/// </summary>
private void ExtendFrameIntoClientArea()
{
if (!IsInitialized)
{
throw new InvalidOperationException("The window has not been initialized!");
}
var margin = new NativeMargin
{
cxLeftWidth = -1,
cxRightWidth = -1,
cyBottomHeight = -1,
cyTopHeight = -1
};
DwmApi.DwmExtendFrameIntoClientArea(WindowHandle, ref margin);
}
