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Fixed a stacktrace overflow due recursive loop when processing Metro-Apps (Windows 8, which also run on 10)

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This commit is contained in:
Robin 2016-05-22 13:13:07 +02:00
commit bd71f47e95
1 changed files with 22 additions and 5 deletions
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27
GreenshotPlugin/Core/WindowsHelper.cs
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@ -159,7 +159,7 @@ namespace GreenshotPlugin.Core {
/// enumeration
/// </summary>
public class WindowDetails : IEquatable<WindowDetails>{
private const string METRO_WINDOWS_CLASS = "Windows.UI.Core.CoreWindow";
private const string METRO_WINDOWS_CLASS = "Windows.UI.Core.CoreWindow"; // Windows 10 uses ApplicationFrameWindow
private const string METRO_APPLAUNCHER_CLASS = "ImmersiveLauncher";
private const string METRO_GUTTER_CLASS = "ImmersiveGutter";
@ -193,6 +193,10 @@ namespace GreenshotPlugin.Core {
private WindowDetails _parent;
private bool _frozen;
/// <summary>
/// This checks if the window is a Windows 8 App
/// For Windows 10 most normal code works, as it's hosted inside "ApplicationFrameWindow"
/// </summary>
public bool IsApp {
get {
return METRO_WINDOWS_CLASS.Equals(ClassName);
@ -644,7 +648,8 @@ namespace GreenshotPlugin.Core {
/// </summary>
public bool Maximised {
get {
if (IsApp) {
if (IsApp)
{
if (Visible) {
Rectangle windowRectangle = WindowRectangle;
foreach (Screen screen in Screen.AllScreens) {
@ -758,6 +763,7 @@ namespace GreenshotPlugin.Core {
private Rectangle _previousWindowRectangle = Rectangle.Empty;
private long _lastWindowRectangleRetrieveTime;
private const long CacheTime = TimeSpan.TicksPerSecond * 2;
/// <summary>
/// Gets the bounding rectangle of the window
/// </summary>
@ -768,14 +774,25 @@ namespace GreenshotPlugin.Core {
if (_previousWindowRectangle.IsEmpty || !_frozen) {
if (_previousWindowRectangle.IsEmpty || now - _lastWindowRectangleRetrieveTime > CacheTime) {
Rectangle windowRect = Rectangle.Empty;
if (DWM.IsDwmEnabled() && !Maximised) {
if (GetExtendedFrameBounds(out windowRect) && Environment.OSVersion.IsWindows10())
if (DWM.IsDwmEnabled())
{
bool gotFrameBounds = GetExtendedFrameBounds(out windowRect);
if (IsApp)
{
// Pre-Cache for Maximised call, this is only on Windows 8 apps (full screen)
if (gotFrameBounds)
{
_previousWindowRectangle = windowRect;
_lastWindowRectangleRetrieveTime = now;
}
}
if (gotFrameBounds && Environment.OSVersion.IsWindows10() && !Maximised)
{
_lastWindowRectangleRetrieveTime = now;
// Somehow DWM doesn't calculate it corectly, there is a 1 pixel border around the capture
// Remove this border, currently it's fixed but TODO: Make it depend on the OS?
windowRect.Inflate(-1, -1);
_previousWindowRectangle = windowRect;
_lastWindowRectangleRetrieveTime = now;
return windowRect;
}
}