private void _InitializeCaptionButtonLocation()
{
if (!Utility.IsOSVistaOrNewer || !Standard.NativeMethods.IsThemeActive())
{
this._LegacyInitializeCaptionButtonLocation();
return;
}
TITLEBARINFOEX tITLEBARINFOEX = new TITLEBARINFOEX()
{
cbSize = Marshal.SizeOf(typeof(TITLEBARINFOEX))
};
TITLEBARINFOEX structure = tITLEBARINFOEX;
IntPtr intPtr = Marshal.AllocHGlobal(structure.cbSize);
try
{
Marshal.StructureToPtr(structure, intPtr, false);
Standard.NativeMethods.ShowWindow(this._messageHwnd.Handle, SW.SHOWNA);
Standard.NativeMethods.SendMessage(this._messageHwnd.Handle, WM.GETTITLEBARINFOEX, IntPtr.Zero, intPtr);
structure = (TITLEBARINFOEX)Marshal.PtrToStructure(intPtr, typeof(TITLEBARINFOEX));
}
finally
{
Standard.NativeMethods.ShowWindow(this._messageHwnd.Handle, SW.HIDE);
Utility.SafeFreeHGlobal(ref intPtr);
}
RECT rECT = RECT.Union(structure.rgrect_CloseButton, structure.rgrect_MinimizeButton);
RECT windowRect = Standard.NativeMethods.GetWindowRect(this._messageHwnd.Handle);
Rect rect = new Rect((double)(rECT.Left - windowRect.Width - windowRect.Left), (double)(rECT.Top - windowRect.Top), (double)rECT.Width, (double)rECT.Height);
this.WindowCaptionButtonsLocation = DpiHelper.DeviceRectToLogical(rect);
}
private void _InitializeCaptionButtonLocation()
{
if (!Utility.IsOSVistaOrNewer || !NativeMethods.IsThemeActive())
{
this._LegacyInitializeCaptionButtonLocation();
return;
}
TITLEBARINFOEX titlebarinfoex = new TITLEBARINFOEX
{
cbSize = Marshal.SizeOf(typeof(TITLEBARINFOEX))
};
IntPtr intPtr = Marshal.AllocHGlobal(titlebarinfoex.cbSize);
try
{
Marshal.StructureToPtr(titlebarinfoex, intPtr, false);
NativeMethods.ShowWindow(this._messageHwnd.Handle, SW.SHOW);
NativeMethods.SendMessage(this._messageHwnd.Handle, WM.GETTITLEBARINFOEX, IntPtr.Zero, intPtr);
titlebarinfoex = (TITLEBARINFOEX)Marshal.PtrToStructure(intPtr, typeof(TITLEBARINFOEX));
}
finally
{
NativeMethods.ShowWindow(this._messageHwnd.Handle, SW.HIDE);
Utility.SafeFreeHGlobal(ref intPtr);
}
RECT rect = RECT.Union(titlebarinfoex.rgrect_CloseButton, titlebarinfoex.rgrect_MinimizeButton);
RECT windowRect = NativeMethods.GetWindowRect(this._messageHwnd.Handle);
Rect deviceRectangle = new Rect((double)(rect.Left - windowRect.Width - windowRect.Left), (double)(rect.Top - windowRect.Top), (double)rect.Width, (double)rect.Height);
Rect windowCaptionButtonsLocation = DpiHelper.DeviceRectToLogical(deviceRectangle);
this.WindowCaptionButtonsLocation = windowCaptionButtonsLocation;
}
private void _InitializeCaptionButtonLocation()
{
// There is a completely different way to do this on XP.
if (!Utility.IsOSVistaOrNewer || !NativeMethods.IsThemeActive())
{
_LegacyInitializeCaptionButtonLocation();
return;
}
var tbix = new TITLEBARINFOEX {
cbSize = Marshal.SizeOf(typeof(TITLEBARINFOEX))
};
IntPtr lParam = Marshal.AllocHGlobal(tbix.cbSize);
try
{
Marshal.StructureToPtr(tbix, lParam, false);
// This might flash a window in the taskbar while being calculated.
// WM_GETTITLEBARINFOEX doesn't work correctly unless the window is visible while processing.
// use SW.SHOWNA instead SW.SHOW to avoid some brief flashing when launched the window
NativeMethods.ShowWindow(_messageHwnd.Handle, SW.SHOWNA);
NativeMethods.SendMessage(_messageHwnd.Handle, WM.GETTITLEBARINFOEX, IntPtr.Zero, lParam);
tbix = (TITLEBARINFOEX)Marshal.PtrToStructure(lParam, typeof(TITLEBARINFOEX));
}
finally
{
NativeMethods.ShowWindow(_messageHwnd.Handle, SW.HIDE);
Utility.SafeFreeHGlobal(ref lParam);
}
// TITLEBARINFOEX has information relative to the screen. We need to convert the containing rect
// to instead be relative to the top-right corner of the window.
RECT rcAllCaptionButtons = RECT.Union(tbix.rgrect_CloseButton, tbix.rgrect_MinimizeButton);
// For all known themes, the RECT for the maximize box shouldn't add anything to the union of the minimize and close boxes.
Assert.AreEqual(rcAllCaptionButtons, RECT.Union(rcAllCaptionButtons, tbix.rgrect_MaximizeButton));
RECT rcWindow = NativeMethods.GetWindowRect(_messageHwnd.Handle);
// Reorient the Top/Right to be relative to the top right edge of the Window.
var deviceCaptionLocation = new Rect(
rcAllCaptionButtons.Left - rcWindow.Width - rcWindow.Left,
rcAllCaptionButtons.Top - rcWindow.Top,
rcAllCaptionButtons.Width,
rcAllCaptionButtons.Height);
Rect logicalCaptionLocation = DpiHelper.DeviceRectToLogical(deviceCaptionLocation);
WindowCaptionButtonsLocation = logicalCaptionLocation;
}
internal static TITLEBARINFOEX GetTitleBarInfoEx(IntPtr hwnd)
{
var tbi = new TITLEBARINFOEX();
tbi.cbSize = Marshal.SizeOf(typeof(TITLEBARINFOEX));
var ptr = Marshal.AllocHGlobal(tbi.cbSize);
try
{
Marshal.StructureToPtr(tbi, ptr, false);
if (SendMessage(hwnd, (int)WindowMessages.WM_GETTITLEBARINFOEX, IntPtr.Zero, ptr) == IntPtr.Zero)
{
throw new NotSupportedException();
}
return((TITLEBARINFOEX)Marshal.PtrToStructure(ptr, tbi.GetType()));
}
finally
{
Marshal.DestroyStructure(ptr, typeof(TITLEBARINFOEX));
Marshal.FreeHGlobal(ptr);
}
}
private void _InitializeCaptionButtonLocation()
{
if (!Utility.IsOSVistaOrNewer || !NativeMethods.IsThemeActive())
{
_LegacyInitializeCaptionButtonLocation();
return;
}
var tbix = new TITLEBARINFOEX {
cbSize = Marshal.SizeOf(typeof(TITLEBARINFOEX))
};
var lParam = Marshal.AllocHGlobal(tbix.cbSize);
try
{
Marshal.StructureToPtr(tbix, lParam, false);
NativeMethods.ShowWindow(_messageHwnd.Handle, SW.SHOW);
NativeMethods.SendMessage(_messageHwnd.Handle, WM.GETTITLEBARINFOEX, IntPtr.Zero, lParam);
tbix = (TITLEBARINFOEX)Marshal.PtrToStructure(lParam, typeof(TITLEBARINFOEX));
}
finally
{
NativeMethods.ShowWindow(_messageHwnd.Handle, SW.HIDE);
Utility.SafeFreeHGlobal(ref lParam);
}
var rcAllCaptionButtons = RECT.Union(tbix.rgrect_CloseButton, tbix.rgrect_MinimizeButton);
Assert.AreEqual(rcAllCaptionButtons, RECT.Union(rcAllCaptionButtons, tbix.rgrect_MaximizeButton));
var rcWindow = NativeMethods.GetWindowRect(_messageHwnd.Handle);
var deviceCaptionLocation = new Rect(rcAllCaptionButtons.Left - rcWindow.Width - rcWindow.Left, rcAllCaptionButtons.Top - rcWindow.Top,
rcAllCaptionButtons.Width, rcAllCaptionButtons.Height);
var logicalCaptionLocation = DpiHelper.DeviceRectToLogical(deviceCaptionLocation);
WindowCaptionButtonsLocation = logicalCaptionLocation;
}
internal static extern uint SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, ref TITLEBARINFOEX lParam);
internal static extern uint SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, ref TITLEBARINFOEX lParam);
