private static string GetPrimaryMonitorDeviceName()
{
string name = null;
if (SafeNativeMethods.GetSystemMetrics(NativeConstants.SM_CMONITORS) != 0)
{
NativeStructs.POINT point = new NativeStructs.POINT
{
x = 0,
y = 0
};
IntPtr hMonitor = SafeNativeMethods.MonitorFromPoint(point, NativeConstants.MONITOR_DEFAULTTOPRIMARY);
NativeStructs.MONITORINFOEX monitorInfo = new NativeStructs.MONITORINFOEX
{
cbSize = (uint)Marshal.SizeOf(typeof(NativeStructs.MONITORINFOEX))
};
if (SafeNativeMethods.GetMonitorInfoW(hMonitor, ref monitorInfo))
{
name = monitorInfo.szDeviceName.TrimEnd('\0');
}
}
return(name);
}
private bool ShowElementTip(string szTitle, string szText)
{
if (this.m_toolTip == null)
{
this.m_toolTip = new ToolTip();
this.m_toolTip.IsBalloon = true;
this.m_toolTip.ToolTipIcon = ToolTipIcon.Warning;
}
this.m_toolTip.RemoveAll();
Control editingControl = this.dataGridView1.EditingControl;
if (editingControl == null || editingControl.IsDisposed)
{
return(false);
}
NativeStructs.POINT nPoint = new NativeStructs.POINT();
if (!NativeMethods.User32.GetCaretPos(ref nPoint))
{
return(false);
}
Graphics graphics = editingControl.CreateGraphics();
SizeF size = graphics.MeasureString(szText, editingControl.Font);
graphics.Dispose();
Point point = new Point(nPoint.x - 20, nPoint.y - 60 - (int)size.Height);
this.m_toolTip.ToolTipTitle = szTitle;
this.m_toolTip.Show(szText, editingControl, point, 3000);
return(true);
}
/// <summary>
/// Sets the bitmap of this layered window.
/// </summary>
/// <param name="bitmap">The bitmap.</param>
public void SetBitmap(Bitmap bitmap)
{
//Test if the bitmap is compatible
if (bitmap.PixelFormat != PixelFormat.Format32bppArgb)
{
throw new ApplicationException("The bitmap must be 32bpp with alpha-channel.");
}
//Get the device contexts
IntPtr screenDc = NativeMethods.GetDC(IntPtr.Zero);
IntPtr memDc = NativeMethods.CreateCompatibleDC(screenDc);
IntPtr hBitmap = IntPtr.Zero;
IntPtr hOldBitmap = IntPtr.Zero;
try
{
//Get handle to the new bitmap and select it into the current device context
hBitmap = bitmap.GetHbitmap(Color.FromArgb(0));
hOldBitmap = NativeMethods.SelectObject(memDc, hBitmap);
//Set parameters for layered window update
NativeStructs.SIZE newSize = new NativeStructs.SIZE(bitmap.Width, bitmap.Height);
NativeStructs.POINT sourceLocation = new NativeStructs.POINT(0, 0);
NativeStructs.POINT newLocation = new NativeStructs.POINT(this.Left, this.Top);
NativeStructs.BLENDFUNCTION blend = new NativeStructs.BLENDFUNCTION();
blend.BlendOp = NativeConstants.AC_SRC_OVER;
blend.BlendFlags = 0;
blend.SourceConstantAlpha = 255;
blend.AlphaFormat = NativeConstants.AC_SRC_ALPHA;
//Update the window
NativeMethods.UpdateLayeredWindow(this.Handle, screenDc, ref newLocation, ref newSize, memDc, ref sourceLocation, 0, ref blend, NativeConstants.ULW_ALPHA);
}
finally
{
//Release the device context
NativeMethods.ReleaseDC(IntPtr.Zero, screenDc);
if (hBitmap != IntPtr.Zero)
{
NativeMethods.SelectObject(memDc, hOldBitmap);
NativeMethods.DeleteObject(hBitmap);
}
//Delete the device context
NativeMethods.DeleteDC(memDc);
}
}
public void SetBitmap(Bitmap bitmap, byte opacity)
{
if (bitmap.PixelFormat != PixelFormat.Format32bppArgb)
{
throw new FormatException("Format32bppArgb bitmap required");
}
IntPtr screenDc = NativeMethods.GetDC(IntPtr.Zero);
IntPtr memDc = NativeMethods.CreateCompatibleDC(screenDc);
IntPtr hBitmap = IntPtr.Zero;
IntPtr oldBitmap = IntPtr.Zero;
try
{
hBitmap = bitmap.GetHbitmap(Color.FromArgb(0));
oldBitmap = NativeMethods.SelectObject(memDc, hBitmap);
NativeStructs.SIZE size = new NativeStructs.SIZE(bitmap.Width, bitmap.Height);
NativeStructs.POINT pointSource = new NativeStructs.POINT(0, 0);
NativeStructs.POINT topPos = new NativeStructs.POINT(Left, Top);
NativeStructs.BLENDFUNCTION blend = new NativeStructs.BLENDFUNCTION();
blend.BlendOp = NativeConsts.AC_SRC_OVER;
blend.BlendFlags = 0;
blend.SourceConstantAlpha = opacity;
blend.AlphaFormat = NativeConsts.AC_SRC_ALPHA;
NativeMethods.UpdateLayeredWindow(Handle, screenDc, ref topPos, ref size, memDc, ref pointSource, 0, ref blend, NativeConsts.ULW_ALPHA);
}
finally
{
NativeMethods.ReleaseDC(IntPtr.Zero, screenDc);
if (hBitmap != IntPtr.Zero)
{
NativeMethods.SelectObject(memDc, oldBitmap);
NativeMethods.DeleteObject(hBitmap);
}
NativeMethods.DeleteDC(memDc);
}
}
private void WindowFinder_MouseMove(object sender, MouseEventArgs e)
{
if (!isSearching)
{
EndSearch();
}
// Grab the window from the screen location of the mouse.
Point newPoint = PointToScreen(new Point(e.X, e.Y));
NativeStructs.POINT windowPoint = NativeStructs.POINT.FromPoint(newPoint);
IntPtr foundWindow = NativeMethods.WindowFromPoint(windowPoint);
// Do we have a valid window handle?
if (foundWindow != IntPtr.Zero)
{
// Give it another try, it might be a child window (disabled, hidden, etc.).
// Offset the point to be a client point of the active window.
if (NativeMethods.ScreenToClient(foundWindow, ref windowPoint))
{
// Check if there is some hidden/disabled child window at this point.
IntPtr childWindow = NativeMethods.ChildWindowFromPoint(foundWindow, windowPoint);
if (childWindow != IntPtr.Zero)
{
// Great, we have the inner child.
foundWindow = childWindow;
}
}
}
// Is this the same window as the last detected one?
if (window.Handle != foundWindow)
{
if (window.SetWindowHandle(foundWindow))
{
InvokeActiveWindowChanged();
}
}
}
public extern static bool MoveToEx(
IntPtr hdc,
int X,
int Y,
out NativeStructs.POINT lpPoint);