Maybe my solution will help you.
My C# "application" is a class library/dll used as a CustomAction for WIX. I wanted a TaskDialog instead of MessageBox but I ran into the same exception as you, and manifest files don't work for C# class libraries as far as I know. I had to use a combination of things to get my code to load the right version of comctl32.dll.
I just got it working so my code is a little messy and fatty.
Sources:
- http://truecheaters.com/f51/%5Bc-%5D-taskdialog-9368.html
- http://support.microsoft.com/kb/830033
1) Include the EnableThemingInScope class as-is from the second link above.
2) Include this modified TaskDialog enums/class:
[Flags]
public enum TaskDialogButtons {
OK = 0x0001,
Cancel = 0x0008,
Yes = 0x0002,
No = 0x0004,
Retry = 0x0010,
Close = 0x0020
}
public enum TaskDialogIcon {
Information = UInt16.MaxValue - 2,
Warning = UInt16.MaxValue,
Stop = UInt16.MaxValue - 1,
Question = 0,
SecurityWarning = UInt16.MaxValue - 5,
SecurityError = UInt16.MaxValue - 6,
SecuritySuccess = UInt16.MaxValue - 7,
SecurityShield = UInt16.MaxValue - 3,
SecurityShieldBlue = UInt16.MaxValue - 4,
SecurityShieldGray = UInt16.MaxValue - 8
}
public enum TaskDialogResult {
None,
OK,
Cancel,
Yes,
No,
Retry,
Close
}
public class StatusDialog {
#region API
[DllImport( "comctl32.dll", CharSet = CharSet.Unicode )]
public static extern int TaskDialog( IntPtr hWndParent, IntPtr hInstance, string pszWindowTitle, string pszMainInstruction, string pszContent, int dwCommonButtons, IntPtr pszIzon, out int pnButton );
#endregion
#region Modal
public static TaskDialogResult Show( IWin32Window owner, string text ) {
return Show( owner, text, null, null, TaskDialogButtons.OK );
}
public static TaskDialogResult Show( IWin32Window owner, string text, string instruction ) {
return Show( owner, text, instruction, null, TaskDialogButtons.OK, 0 );
}
public static TaskDialogResult Show( IWin32Window owner, string text, string instruction, string caption ) {
return Show( owner, text, instruction, caption, TaskDialogButtons.OK, 0 );
}
public static TaskDialogResult Show( IWin32Window owner, string text, string instruction, string caption, TaskDialogButtons buttons ) {
return Show( owner, text, instruction, caption, buttons, 0 );
}
public static TaskDialogResult Show( IWin32Window owner, string text, string instruction, string caption, TaskDialogButtons buttons, TaskDialogIcon icon ) {
return ShowInternal( owner.Handle, text, instruction, caption, buttons, icon );
}
#endregion
#region Non-Modal
public static TaskDialogResult Show( string text ) {
return Show( text, null, null, TaskDialogButtons.OK );
}
public static TaskDialogResult Show( string text, string instruction ) {
return Show( text, instruction, null, TaskDialogButtons.OK, 0 );
}
public static TaskDialogResult Show( string text, string instruction, string caption ) {
return Show( text, instruction, caption, TaskDialogButtons.OK, 0 );
}
public static TaskDialogResult Show( string text, string instruction, string caption, TaskDialogButtons buttons ) {
return Show( text, instruction, caption, buttons, 0 );
}
public static TaskDialogResult Show( string text, string instruction, string caption, TaskDialogButtons buttons, TaskDialogIcon icon ) {
return ShowInternal( IntPtr.Zero, text, instruction, caption, buttons, icon );
}
#endregion
#region Core Implementation
private static TaskDialogResult ShowInternal( IntPtr owner, string text, string instruction, string caption, TaskDialogButtons buttons, TaskDialogIcon icon ) {
int p;
using ( new EnableThemingInScope( true ) ) {
int resss = TaskDialog( owner, IntPtr.Zero, caption, instruction, text, (int) buttons, new IntPtr( (int) icon ), out p );
if ( resss != 0 )
throw new InvalidOperationException( "Something weird has happened." + resss.ToString() );
}
switch ( p ) {
case 1:
return TaskDialogResult.OK;
case 2:
return TaskDialogResult.Cancel;
case 4:
return TaskDialogResult.Retry;
case 6:
return TaskDialogResult.Yes;
case 7:
return TaskDialogResult.No;
case 8:
return TaskDialogResult.Close;
default:
return TaskDialogResult.None;
}
}
#endregion
}
3. To call it, simply:
try {
StatusDialog.Show( "About to test this...", "Heading I won't use.", "Dialog Title", TaskDialogButtons.OK );
} catch ( Exception e ) {
MessageBox.Show( e.ToString(), "Error Found", MessageBoxButtons.OK );
}
4. Result:
![enter image description here]()
System.Windows.Applicationinstead? I guess the winforms (or whatever you're loading previously) is loading a bunch of ancient crap WPF doesn't care about. – Shimmer