Phenomenon is that the problem is a dynamic library in ATL/WTL plait, temporarily called B.d ll
Call environment, there is A service as A daemon program, and connected to A program by using the method of websocket, IE, A dynamic library B.d ll call, B perform related functions, the pop-up interface,
Normally, when the interface can pop up normally, but in the one computer, B interface has been unable to pop up, until the restart the computer, or restart the program a.
, there is a problem of computer has Windows 7 also has win10

Through the log and other means to atl DoModal place specifically DialogBoxParam return 1, LastError=0


The calling code

 CxxxDlg DLG. 
INT_PTR Res=DLG. DoModal (); 

Everyone a great god, can you tell me some encountered similar problems, or have any Suggestions, please, I really can't imagine what could the

CodePudding user response:

May be can't find the resources needed, the log will be the incoming parameters do record to see
Try to add an export interface, call the export interface

 
# include "TestDlg. H" 

Extern "C" __declspec (dllexport) int TestDlg (HWND hParentWnd) 
{
AFX_MANAGE_STATE (AfxGetStaticModuleState ()); 

(CWnd: : FromHandle CTestDlg DLG (hParentWnd)); 
Return (INT) DLG. DoModal (); 
}