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Cleaner solution for export problems which are denied/failed.

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git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@2323 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
This commit is contained in:
RKrom 2012-11-28 16:52:17 +00:00
parent c517787d23
commit 3bd99b2297
3 changed files with 34 additions and 32 deletions
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38
GreenshotPlugin/Interop/COMWrapper.cs
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@ -55,6 +55,11 @@ namespace Greenshot.Interop {
/// </summary>
private Type _InterceptType;
/// <summary>
/// The humanly readable target name
/// </summary>
private string _TargetName;
#endregion
[DllImport("ole32.dll")]
static extern int ProgIDFromCLSID([In] ref Guid clsid, [MarshalAs(UnmanagedType.LPWStr)] out string lplpszProgID);
@ -126,7 +131,7 @@ namespace Greenshot.Interop {
if (comObject != null) {
if (comObject is IDispatch) {
COMWrapper wrapper = new COMWrapper(comObject, type);
COMWrapper wrapper = new COMWrapper(comObject, type, progIDAttribute.Value);
return (T)wrapper.GetTransparentProxy();
} else {
return (T)comObject;
@ -275,7 +280,7 @@ namespace Greenshot.Interop {
}
if (comObject != null) {
if (comObject is IDispatch) {
COMWrapper wrapper = new COMWrapper(comObject, type);
COMWrapper wrapper = new COMWrapper(comObject, type, progIDAttribute.Value);
return (T)wrapper.GetTransparentProxy();
} else {
return (T)comObject;
@ -290,7 +295,7 @@ namespace Greenshot.Interop {
/// <param name="comObject">An object to intercept</param>
/// <param name="type">Interface which defines the method and properties to intercept</param>
/// <returns>Transparent proxy to the real proxy for the object</returns>
private static object Wrap(object comObject, Type type) {
private static object Wrap(object comObject, Type type, string targetName) {
if (null == comObject) {
throw new ArgumentNullException("comObject");
}
@ -298,7 +303,7 @@ namespace Greenshot.Interop {
throw new ArgumentNullException("type");
}
COMWrapper wrapper = new COMWrapper(comObject, type);
COMWrapper wrapper = new COMWrapper(comObject, type, targetName);
return wrapper.GetTransparentProxy();
}
@ -311,10 +316,11 @@ namespace Greenshot.Interop {
/// <param name="type">
/// The interface type to impersonate.
/// </param>
private COMWrapper(object comObject, Type type) : base(type) {
private COMWrapper(object comObject, Type type, string targetName) : base(type) {
this._COMObject = comObject;
this._COMType = comObject.GetType();
this._InterceptType = type;
this._TargetName = targetName;
}
#endregion
@ -452,7 +458,7 @@ namespace Greenshot.Interop {
throw new ArgumentException("wrapper proxy was no COMWrapper");
}
if (oldWrapper._InterceptType.IsAssignableFrom(newType)) {
COMWrapper newWrapper = new COMWrapper(oldWrapper._COMObject, newType);
COMWrapper newWrapper = new COMWrapper(oldWrapper._COMObject, newType, oldWrapper._TargetName);
return (T)newWrapper.GetTransparentProxy();
}
throw new InvalidCastException(string.Format("{0} is not assignable from {1}", oldWrapper._InterceptType, newType));
@ -661,11 +667,17 @@ namespace Greenshot.Interop {
} catch (Exception ex) {
// Test for rejected
COMException comEx = ex as COMException;
if (comEx != null && comEx.ErrorCode == RPC_E_CALL_REJECTED) {
ComProgIdAttribute progIDAttribute = ComProgIdAttribute.GetAttribute(_InterceptType);
string destinationName = "";
if (progIDAttribute != null) {
destinationName = progIDAttribute.Value + " ";
if (comEx == null) {
comEx = ex.InnerException as COMException;
}
if (comEx != null && (comEx.ErrorCode == RPC_E_CALL_REJECTED || comEx.ErrorCode == COMWrapper.RPC_E_FAIL)) {
string destinationName = _TargetName;
// Try to find a "catchy" name for the rejecting application
if (destinationName != null && destinationName.Contains(".")) {
destinationName = destinationName.Substring(0, destinationName.IndexOf("."));
}
if (destinationName == null) {
destinationName = _InterceptType.FullName;
}
DialogResult result = MessageBox.Show(PluginUtils.Host.GreenshotForm, Language.GetFormattedString("com_rejected", destinationName), Language.GetString("com_rejected_title"), MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation);
if (result == DialogResult.OK) {
@ -682,7 +694,7 @@ namespace Greenshot.Interop {
if (returnType.IsInterface) {
// Wrap the returned value in an intercepting COM wrapper
if (Marshal.IsComObject(returnValue)) {
returnValue = COMWrapper.Wrap(returnValue, returnType);
returnValue = COMWrapper.Wrap(returnValue, returnType, _TargetName);
}
} else if (returnType.IsEnum) {
// Convert to proper Enum type
@ -722,7 +734,7 @@ namespace Greenshot.Interop {
}
if (null == wrapper) {
wrapper = new COMWrapper(arg, byValType);
wrapper = new COMWrapper(arg, byValType, _TargetName);
}
arg = wrapper.GetTransparentProxy();
}