Синхронизация потоков при параллельном решении задач

#include <windows.h>
#include <stdlib.h>
#include <string.h>
#include <iostream>
#include <time.h>
#include <algorithm>
 
HWND hwnd, edit1, edit2, button1, button2, label1, label2, listbox, combobox;
 
const unsigned len = 1024;
 
wchar_t buff[len];
 
LRESULT CALLBACK MsgProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 
{
 
static HDC hdcStatic;
 
switch (message)
 
{
 
case WM_QUIT: PostQuitMessage(0); break;
 
case WM_CLOSE: PostQuitMessage(0); break;
 
case WM_DESTROY: PostQuitMessage(0); break;
 
case WM_CTLCOLORSTATIC:
 
hdcStatic = (HDC) wParam;
 
SetTextColor(hdcStatic, RGB(20,10,30));
 
SetBkMode (hdcStatic, TRANSPARENT);
 
return (LRESULT)GetStockObject(NULL_BRUSH);
 
case WM_COMMAND:
 
if (LOWORD(wParam)==1001)
 
{
 
GetWindowText(edit1, buff, len);
 
SetWindowText(edit2, buff);
 
}
 
else if (LOWORD(wParam)==1002)
 
{
 
PostQuitMessage(0);
 
}
 
break;
 
}
 
return DefWindowProc (hWnd, message, wParam, lParam);
 
}
 
int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInstance, LPSTR lpszArgument, int nCmdShow)
 
{
 
MSG msg;
 
bool bquit = false;
 
WNDCLASSEX wincl;
wincl.hInstance = hInst;
wincl.lpszClassName = TEXT("app");
wincl.lpfnWndProc = MsgProc;
wincl.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wincl.cbSize = sizeof(WNDCLASSEX);
wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wincl.hIconSm = NULL;
wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
wincl.lpszMenuName = NULL;
wincl.cbClsExtra = 0;
wincl.cbWndExtra = 0;
wincl.hbrBackground = (HBRUSH)(1);
RegisterClassEx(&wincl);
 
 
 
 
hwnd = CreateWindowEx(WS_EX_APPWINDOW, TEXT("app"), TEXT("app"), WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX, CW_USEDEFAULT, CW_USEDEFAULT, 650, 470, HWND_DESKTOP, NULL, hInst, NULL);
 
ShowWindow(hwnd, nCmdShow);
 
edit1 = CreateWindowEx(0, TEXT("Edit"), TEXT(" "),
WS_CHILD|WS_VISIBLE|WS_BORDER, 25, 10, 450, 24,
hwnd, NULL, NULL, NULL);
 
edit2 = CreateWindowEx(0, TEXT("Edit"), TEXT(" "),
WS_CHILD|WS_VISIBLE|WS_BORDER|ES_MULTILINE, 25, 80, 590, 350,
hwnd, NULL, NULL, NULL);
 
button1 = CreateWindowEx(0, TEXT("button"), TEXT("Ввод"),
WS_CHILD|WS_VISIBLE|WS_BORDER, 490, 10, 125, 23, 
hwnd, (HMENU)1001, hInst, NULL);
 
button2 = CreateWindowEx(0, TEXT("button"), TEXT("Создать и запустить потоки"),
WS_CHILD|WS_VISIBLE|WS_BORDER, 25, 50, 590, 23, 
hwnd, (HMENU)1002, hInst, NULL);
HWND hWnd = FindWindow(TEXT("app1"),NULL);
 
if (hWnd != NULL) {
 
 
}
 
while ( !bquit )
 
{
 
if ( PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) )
 
{
 
if ( msg.message == WM_QUIT )
 
bquit = true;
 
TranslateMessage(&msg);
 
DispatchMessage(&msg);
 
}
 
else
 
{
 
Sleep(10);
 
}
 
}
 
return msg.wParam;
 
}
 
DWORD WINAPI ThFun(LPVOID lpvPar, HWND hwLB, WPARAM wParam)
{
while (LOWORD(wParam==1001))
{
if (SendMessage (hwLB, LB_GETCOUNT, 0, 0) !=0)
{
Sleep (100);
if (SendMessage (hwLB, LB_GETCOUNT, 0, 0) == 0)
{
    MessageBox (hwnd,TEXT("Ошибка синхронизации"),TEXT("Ошибка"), MB_OK);
}
else SendMessage (hwLB, LB_DELETESTRING, 0, 0) ;
}
}
return 0;
}

#include <windows.h>
#include <stdlib.h>
#include <malloc.h>
#include <memory.h>
#include <tchar.h>
#include <math.h>