It is also possible, although not as likely, that the unmanaged function unbalanced the stack for some other reason, such as a bug in the unmanaged compiler.
![pinvokestackimbalance getwindowtext pinvokestackimbalance getwindowtext](https://cesar.themudo.com/wp-content/uploads/2014/02/03_Opciones-de-rendimiento.jpg)
Try explicitly specifying the calling convention on both the managed and unmanaged sides. Review the managed platform invoke signature and calling convention to confirm it matches the signature and calling convention of the native target. The MDA can also activate because the calling convention, possibly specified by the xref: attribute, does not match the unmanaged calling convention. This mismatch can be caused by the managed signature not declaring the correct number of parameters or not specifying the appropriate size for the parameters. The managed signature of the platform invoke call might not match the unmanaged signature of the method being called. SymptomsĪn application encounters an access violation or memory corruption when making or following a platform invoke call. However, selecting or clearing the Break When Thrown check box does not enable or disable the MDA it only controls whether Visual Studio throws an exception when the MDA is activated.
#Pinvokestackimbalance getwindowtext windows#
In Visual Studio 2017 and later versions, the PInvokeStackImbalance MDA appears in the Managed Debugging Assistants list in the Exception Settings dialog box (which is displayed when you select Debug > Windows > Exception Settings). The PInvokeStackImbalance MDA is disabled by default. The PInvokeStackImbalance MDA is implemented only for 32-bit x86 platforms.
![pinvokestackimbalance getwindowtext pinvokestackimbalance getwindowtext](https://mitosuya.net/wp-content/uploads/2018/11/vs2015-exception-window-min-288x300.png)
The PInvokeStackImbalance managed debugging assistant (MDA) is activated when the CLR detects that the stack depth after a platform invoke call does not match the expected stack depth, given the calling convention specified in the xref: attribute and the declaration of the parameters in the managed signature.