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richedit: how can i read some characters without cpu on 100%?

Cambalinho (1445)
i'm creating a function for read some data from richedit:
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static LRESULT APIENTRY RichEditProc(HWND hwndDlg,UINT uMsg,WPARAM wParam,LPARAM lParam)
    {
        consolewindow *richedit = (consolewindow *)GetWindowLongPtr(hwndDlg, GWLP_USERDATA);


        switch(uMsg)
        {
            case WM_KEYDOWN:
            {
                if((wParam==VK_RETURN) && (richedit->blnread==true))
                {
                    richedit->blnread=false;
                }

                return 0;
            }
            break;
            case WM_CHAR:
            {
                if(richedit->blnread==true)
                    richedit->strreaded=richedit->strreaded + char(wParam);
            }
            break;
        }
        return CallWindowProc(richedit->wpOrigRichEditProc,hwndDlg,uMsg,wParam,lParam);
    }


read function:
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void APIDoEvents()
    {
        MSG msg;
        BOOL result;

        while ( blnread==true)
        {
            if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE ))
            {
                TranslateMessage(&msg);
                DispatchMessage(&msg);
            }
            else
            {
                SleepEx(1,1);
            }
        }
    }

    string read()
    {
        blnread=true;
        APIDoEvents();
        DebugText("hi");
        return strreaded;
    }

these code works. but the cpu can be on 100%. how can i fix it?
how i know? because the other window\form\window application is freezed :(
Last edited on
closed account (E0p9LyTq)
"How to Use Rich Edit Text Operations"

https://msdn.microsoft.com/en-us/library/windows/desktop/hh270404%28v=vs.85%29.aspx
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