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Code quality changes for stability and reduced memory usage.

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This commit is contained in:
RKrom 2014-06-13 12:18:59 +02:00
parent eb042dca58
commit 08216b09c0
21 changed files with 342 additions and 316 deletions
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122
GreenshotPlugin/Core/WindowsHelper.cs
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@ -91,7 +91,7 @@ namespace GreenshotPlugin.Core {
public WindowsEnumerator GetWindows(IntPtr hWndParent, string classname) {
items = new List<WindowDetails>();
List<WindowDetails> windows = new List<WindowDetails>();
User32.EnumChildWindows(hWndParent, new EnumWindowsProc(WindowEnum), 0);
User32.EnumChildWindows(hWndParent, new EnumWindowsProc(WindowEnum), IntPtr.Zero);
bool hasParent = !IntPtr.Zero.Equals(hWndParent);
string parentText = null;
@ -161,7 +161,6 @@ namespace GreenshotPlugin.Core {
/// Provides details about a Window returned by the
/// enumeration
/// </summary>
[SuppressMessage("Microsoft.Design", "CA1049:TypesThatOwnNativeResourcesShouldBeDisposable")]
public class WindowDetails : IEquatable<WindowDetails>{
private const string METRO_WINDOWS_CLASS = "Windows.UI.Core.CoreWindow";
private const string METRO_APPLAUNCHER_CLASS = "ImmersiveLauncher";
@ -281,7 +280,7 @@ namespace GreenshotPlugin.Core {
return string.Empty;
}
// Get the process id
IntPtr processid;
int processid;
User32.GetWindowThreadProcessId(Handle, out processid);
return Kernel32.GetProcessPath(processid);
}
@ -730,10 +729,10 @@ namespace GreenshotPlugin.Core {
return parentHandle != IntPtr.Zero;
}
}
public IntPtr ProcessId {
public int ProcessId {
get {
IntPtr processId;
int processId;
User32.GetWindowThreadProcessId(Handle, out processId);
return processId;
}
@ -742,9 +741,9 @@ namespace GreenshotPlugin.Core {
public Process Process {
get {
try {
IntPtr processId;
int processId;
User32.GetWindowThreadProcessId(Handle, out processId);
Process process = Process.GetProcessById(processId.ToInt32());
Process process = Process.GetProcessById(processId);
if (process != null) {
return process;
}
@ -866,7 +865,7 @@ namespace GreenshotPlugin.Core {
return (WindowStyleFlags)User32.GetWindowLongWrapper(hWnd, (int)WindowLongIndex.GWL_STYLE);
}
set {
User32.SetWindowLongWrapper(hWnd, (int)WindowLongIndex.GWL_STYLE, (uint)value);
User32.SetWindowLongWrapper(hWnd, (int)WindowLongIndex.GWL_STYLE, new IntPtr((uint)value));
}
}
@ -892,7 +891,7 @@ namespace GreenshotPlugin.Core {
return (ExtendedWindowStyleFlags)User32.GetWindowLongWrapper(hWnd, (int)WindowLongIndex.GWL_EXSTYLE);
}
set {
User32.SetWindowLongWrapper(hWnd, (int)WindowLongIndex.GWL_EXSTYLE, (uint)value);
User32.SetWindowLongWrapper(hWnd, (int)WindowLongIndex.GWL_EXSTYLE, new IntPtr((uint)value));
}
}
@ -992,9 +991,11 @@ namespace GreenshotPlugin.Core {
// check if the capture fits
if (!doesCaptureFit) {
// if GDI is allowed.. (a screenshot won't be better than we comes if we continue)
if (!isMetroApp && WindowCapture.isGDIAllowed(Process)) {
// we return null which causes the capturing code to try another method.
return null;
using (Process thisWindowProcess = Process) {
if (!isMetroApp && WindowCapture.isGDIAllowed(thisWindowProcess)) {
// we return null which causes the capturing code to try another method.
return null;
}
}
}
}
@ -1292,28 +1293,30 @@ namespace GreenshotPlugin.Core {
/// Warning: Use only if no other way!!
/// </summary>
private bool FreezeWindow() {
Process proc = Process.GetProcessById(ProcessId.ToInt32());
string processName = proc.ProcessName;
if (!CanFreezeOrUnfreeze(processName)) {
LOG.DebugFormat("Not freezing {0}", processName);
return false;
}
if (!CanFreezeOrUnfreeze(Text)) {
LOG.DebugFormat("Not freezing {0}", processName);
return false;
}
LOG.DebugFormat("Freezing process: {0}", processName);
bool frozen = false;
foreach (ProcessThread pT in proc.Threads) {
IntPtr pOpenThread = Kernel32.OpenThread(ThreadAccess.SUSPEND_RESUME, false, (uint)pT.Id);
if (pOpenThread == IntPtr.Zero) {
break;
using (Process proc = Process.GetProcessById(ProcessId)) {
string processName = proc.ProcessName;
if (!CanFreezeOrUnfreeze(processName)) {
LOG.DebugFormat("Not freezing {0}", processName);
return false;
}
if (!CanFreezeOrUnfreeze(Text)) {
LOG.DebugFormat("Not freezing {0}", processName);
return false;
}
LOG.DebugFormat("Freezing process: {0}", processName);
foreach (ProcessThread pT in proc.Threads) {
IntPtr pOpenThread = Kernel32.OpenThread(ThreadAccess.SUSPEND_RESUME, false, (uint)pT.Id);
if (pOpenThread == IntPtr.Zero) {
break;
}
frozen = true;
Kernel32.SuspendThread(pOpenThread);
pT.Dispose();
}
frozen = true;
Kernel32.SuspendThread(pOpenThread);
}
return frozen;
}
@ -1322,27 +1325,27 @@ namespace GreenshotPlugin.Core {
/// Unfreeze the process belonging to the window
/// </summary>
public void UnfreezeWindow() {
Process proc = Process.GetProcessById(ProcessId.ToInt32());
string processName = proc.ProcessName;
if (!CanFreezeOrUnfreeze(processName)) {
LOG.DebugFormat("Not unfreezing {0}", processName);
return;
}
if (!CanFreezeOrUnfreeze(Text)) {
LOG.DebugFormat("Not unfreezing {0}", processName);
return;
}
LOG.DebugFormat("Unfreezing process: {0}", processName);
foreach (ProcessThread pT in proc.Threads) {
IntPtr pOpenThread = Kernel32.OpenThread(ThreadAccess.SUSPEND_RESUME, false, (uint)pT.Id);
if (pOpenThread == IntPtr.Zero) {
break;
using (Process proc = Process.GetProcessById(ProcessId)) {
string processName = proc.ProcessName;
if (!CanFreezeOrUnfreeze(processName)) {
LOG.DebugFormat("Not unfreezing {0}", processName);
return;
}
if (!CanFreezeOrUnfreeze(Text)) {
LOG.DebugFormat("Not unfreezing {0}", processName);
return;
}
LOG.DebugFormat("Unfreezing process: {0}", processName);
foreach (ProcessThread pT in proc.Threads) {
IntPtr pOpenThread = Kernel32.OpenThread(ThreadAccess.SUSPEND_RESUME, false, (uint)pT.Id);
if (pOpenThread == IntPtr.Zero) {
break;
}
Kernel32.ResumeThread(pOpenThread);
}
Kernel32.ResumeThread(pOpenThread);
}
}
@ -1363,15 +1366,12 @@ namespace GreenshotPlugin.Core {
}
returnImage = new Bitmap(windowRect.Width, windowRect.Height, pixelFormat);
using (Graphics graphics = Graphics.FromImage(returnImage)) {
IntPtr hDCDest = graphics.GetHdc();
try {
bool printSucceeded = User32.PrintWindow(Handle, hDCDest, 0x0);
using (SafeDeviceContextHandle graphicsDC = graphics.getSafeDeviceContext()) {
bool printSucceeded = User32.PrintWindow(Handle, graphicsDC.DangerousGetHandle(), 0x0);
if (!printSucceeded) {
// something went wrong, most likely a "0x80004005" (Acess Denied) when using UAC
exceptionOccured = User32.CreateWin32Exception("PrintWindow");
}
} finally {
graphics.ReleaseHdc(hDCDest);
}
// Apply the region "transparency"
@ -1439,7 +1439,9 @@ namespace GreenshotPlugin.Core {
get {
try {
if (!isMetroApp) {
return "Greenshot".Equals(Process.MainModule.FileVersionInfo.ProductName);
using (Process thisWindowProcess = Process) {
return "Greenshot".Equals(thisWindowProcess.MainModule.FileVersionInfo.ProductName);
}
}
} catch (Exception ex) {
LOG.Warn(ex);
@ -1622,7 +1624,7 @@ namespace GreenshotPlugin.Core {
/// <param name="windowToLinkTo"></param>
/// <returns></returns>
public static WindowDetails GetLinkedWindow(WindowDetails windowToLinkTo) {
IntPtr processIdSelectedWindow = windowToLinkTo.ProcessId;
int processIdSelectedWindow = windowToLinkTo.ProcessId;
foreach(WindowDetails window in GetAllWindows()) {
// Ignore windows without title
if (window.Text.Length == 0) {