private void resizeButton_Click(object sender, EventArgs e)
{
var selected = treeView.SelectedNode;
if (selected != null &&
selected.ImageIndex == 2 &&
selected.Tag != null
)
{
var hWnd = (IntPtr)selected.Tag;
if (User32Dll.GetWindowRect(hWnd, out _))
{
User32Dll.MoveWindow(
hWnd,
(int)xNud.Value,
(int)yNud.Value,
(int)widthNud.Value,
(int)heightNud.Value,
true
);
User32Dll.GetWindowRect(hWnd, out var rct2);
DisplayRect(rct2);
}
else
{
MessageBox.Show(
"Error has appeared.",
"Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error
);
}
}
}
public bool CaptureWindow(IntPtr handle, out Image image)
{
var hdcSrc = User32Dll.GetWindowDC(handle);
User32Dll.GetWindowRect(handle, out var windowRect);
var hdcDest = new HandleRef(this, Gdi32Dll.CreateCompatibleDC(hdcSrc));
var hBitmap = new HandleRef(
this,
Gdi32Dll.CreateCompatibleBitmap(
hdcSrc,
windowRect.Width,
windowRect.Height
)
);
var hOld = new HandleRef(this, Gdi32Dll.SelectObject(hdcDest, hBitmap));
var success = Gdi32Dll.BitBlt(
hdcDest,
0, 0,
windowRect.Width,
windowRect.Height,
hdcSrc,
0, 0,
(int)Gdi32Dll.TernaryRasterOperations.SRCCOPY
);
Gdi32Dll.SelectObject(hdcDest, hOld);
Gdi32Dll.DeleteDC(hdcDest);
User32Dll.ReleaseDC(handle, hdcSrc);
image = success ? Image.FromHbitmap(hBitmap.Handle) : null;
Gdi32Dll.DeleteObject(hBitmap);
return(success);
}
private void treeView_AfterSelect(object sender, TreeViewEventArgs e)
{
windowInfoControls.ForEach(c => c.Hide());
pictureBox.Image = null;
capturedImage?.Dispose();
if (e.Node.ImageIndex == 2 &&
e.Node.Tag != null
)
{
var hWnd = (IntPtr)e.Node.Tag;
if (User32Dll.GetWindowRect(hWnd, out var rct) && !rct.IsEmpty)
{
DisplayRect(rct);
if (CaptureWindow(hWnd, out capturedImage))
{
pictureBox.Image = capturedImage;
}
windowInfoControls.ForEach(c => c.Show());
}
}
}
private void refreshButton_Click(object sender, EventArgs e)
{
windowInfoControls.ForEach(c => c.Hide());
treeView.Nodes.Clear();
pictureBox.Image = null;
capturedImage?.Dispose();
var procNodes = new Dictionary <int, TreeNode>();
foreach (var proc in Process.GetProcesses())
{
procNodes[proc.Id] = new TreeNode($"0x{proc.Id:X8} {proc.ProcessName}")
{
Tag = proc
};
}
User32Dll.EnumWindows(
(hWnd, lParam) => {
try {
User32Dll.GetWindowThreadProcessId(hWnd, out var id);
if (procNodes.TryGetValue((int)id, out var node))
{
var capacity = User32Dll.GetWindowTextLength(hWnd) * 2;
var sb = new StringBuilder(capacity);
if (capacity > 0)
{
User32Dll.GetWindowText(hWnd, sb, capacity);
}
TreeNode wndNode;
if (capacity > 0 &&
User32Dll.GetWindowRect(hWnd, out var rct) &&
!rct.IsEmpty
)
{
wndNode = new TreeNode(
$"0x{(int)hWnd:X8} {sb}", 2, 2
)
{
Tag = hWnd
};
node.Nodes.Add(wndNode);
}
else if (showAll.Checked)
{
wndNode = new TreeNode(
$"0x{(int)hWnd:X8} {sb}", 1, 1
)
{
Tag = null,
ForeColor = Color.Gray
};
node.Nodes.Add(wndNode);
}
}
} catch {
// ignore
}
return(true);
}, IntPtr.Zero
);
foreach (var kvp in procNodes.OrderBy(kvp => ((Process)kvp.Value.Tag).ProcessName))
{
if (kvp.Value.Nodes.Count > 0)
{
kvp.Value.ImageIndex = kvp.Value.SelectedImageIndex = 4;
treeView.Nodes.Add(kvp.Value);
}
else if (showAll.Checked)
{
kvp.Value.ImageIndex = kvp.Value.SelectedImageIndex = 3;
kvp.Value.ForeColor = Color.Gray;
treeView.Nodes.Add(kvp.Value);
}
}
}