Dynamic DLL call error-the value of ESP was not properly saved stored ss a function call

DLL call error-the value of ESP was not properly saved stored ss a function call.

When you call a function in a DLL, the following dialog box is displayed:

Microsoft Visual C ++ debug Library:

Debug error:
Program :...
Module:
File: i386/chkesp. c
Line: 42

The
Value of ESP was not properly saved stored ss a function call. This is
Usually a result of calling a function declared with one calling
Convention with a function pointer declared with a different calling
Convention.

(Press retry to debug the Application)

One of the solutions is:

Add winapi before function call

 

For example:

Typedef bool (winapi * loadsdk )();
Typedef int (winapi * barcodeanalyzeimage) (lpctstr lpszimagepath, long pval );
Typedef int (winapi * barcoderesult) (INT nitem, lpstr lpszbuffer, int nbufferlen );
Typedef void (winapi * freesdk )();