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#include <windows.h>
#define ID_BTN_1     1000    // Èäåíòèôèêàòîð êíîïêè
#define ID_STA_1     1010    // Èäåíòèôèêàòîð ñòàòè÷åñêîãî ýëåìåíòà
#define ID_EDT_1     1020    // Èäåíòèôèêàòîð òåêñòîâîãî ïîëÿ
#define ID_CHE_1     1030    // Èäåíòèôèêàòîð ôëàæêà
#define ID_RAD_1     1040    // Èäåíòèôèêàòîð ðàäèîêíîïêè
#define ID_RAD_2     1050    // Èäåíòèôèêàòîð ðàäèîêíîïêè
#define ID_RAD_3     1060    // Èäåíòèôèêàòîð ðàäèîêíîïêè
#define ID_COM_1     1070    // Èäåíòèôèêàòîð êîìáèíèðîâàííîãî áîêñà (ñïèñîê)
#define ID_EDT_2     1080    // ????????????? ?????????? ????
#define ID_EDT_3     1090    // ????????????? ?????????? ????
#define ID_EDT_4     1100    // ????????????? ?????????? ????
#define ID_BTN_2     1110    // ????????????? ??????
HINSTANCE hInst;             // Äåñêðèïòîð ïðèëîæåíèÿ
char szClassName[] = "AppClass"; 
MSG msg;                        // Ñòðóêòóðà äëÿ õðàíåíèÿ îáðàáàòûâàåìûõ ñîîáùåíèé
HWND  hWnd[5];                  // Äåñêðèïòîðû îñíîâíîãî è äî÷åðíèõ îêîí
short left, top, width, height; // Ðàáî÷àÿ îáëàñòü îñíîâíîãî îêíà
// ===== Ôóíêöèÿ ñîçäàíèÿ îêíà, âîçâðàùàåò äåñêðèïòîð ñîçäàííîãî îêíà ===================================
HWND Wnd(HINSTANCE hI, WNDPROC Pr, HWND hwnd, LPCSTR s, LPCSTR menu, int l, int t, int w, int h, int u)
{
    WNDCLASS wc = {CS_HREDRAW | CS_VREDRAW, Pr, 0, 0, hI, NULL, NULL, (HBRUSH)COLOR_WINDOW, menu, s};
    if(!RegisterClass(&wc)){MessageBox(NULL, "Îøèáêà ðåãèñòðàöèè êëàññà îêíà", s, MB_OK);};
    if(u){return CreateWindow(s,s,WS_OVERLAPPEDWINDOW|WS_VISIBLE,l,t,w,h,hwnd,(HMENU)NULL,hI,NULL);}
    else{return CreateWindowEx(WS_EX_CLIENTEDGE,s,s,WS_POPUP|WS_VISIBLE,l,t,w,h,hwnd,NULL,hI,NULL);};
};
// ===== Îêîííàÿ ïðîöåäóðà, îáåñïå÷èâàþùàÿ îáðàáîòêó ñîîáùåíèé îñíîâíîãî îêíà ===========================
LRESULT CALLBACK WndProc_0(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
        case WM_MOVE: // Ñîîáùåíèå î òîì, ÷òî îñíîâíîå îêíî ïåðåìåùåíî
            // Ïðè ïîëó÷åíèè ýòîãî ñîîáùåíèÿ âòîðîé ïàðàìåòð âñåãäà ñîäåðæèò
            // (left,top) - êîîðäèíàòû ëåâîãî âåðõíåãî óãëà ðàáî÷åé îáëàñòè îñíîâíîãî îêíà
            left = LOWORD(lParam); // èçâëåêàåòñÿ ëåâàÿ  ïîëîâèíà äâîéíîãî ñëîâà (ïåðâûå 16 ïîçèöèé)
            top  = HIWORD(lParam); // èçâëåêàåòñÿ ïðàâàÿ ïîëîâèíà äâîéíîãî ñëîâà (âòîðûå 16 ïîçèöèé)
            MoveWindow(hWnd[1], left, top, width, height/2, TRUE);
            MoveWindow(hWnd[2], left, top + height/2, width, height/2, TRUE);
        return 0;
        case WM_SIZE: // Ñîîáùåíèå î òîì, ÷òî èçìåíèëèñü ðàçìåðû îñíîâíîãî îêíà
            // Ïðè ïîëó÷åíèè ýòîãî ñîîáùåíèÿ âòîðîé ïàðàìåòð âñåãäà ñîäåðæèò
            // width, height - øèðèíó è âûñîòó ðàáî÷åé îáëàñòè îñíîâíîãî îêíà
            width  = LOWORD(lParam);// èçâëåêàåòñÿ ëåâàÿ  ïîëîâèíà äâîéíîãî ñëîâà (ïåðâûå 16 ïîçèöèé)
            height = HIWORD(lParam);// èçâëåêàåòñÿ ïðàâàÿ ïîëîâèíà äâîéíîãî ñëîâà (âòîðûå 16 ïîçèöèé)
            MoveWindow(hWnd[1], left, top, width, height/2, TRUE);
            MoveWindow(hWnd[2], left, top + height/2, width, height/2, TRUE);
        return 0;
        
        case WM_DESTROY: PostQuitMessage(0); return 0;
    };
    return DefWindowProc(hwnd, message, wParam, lParam);
};
// ======================================================================================================
LRESULT CALLBACK WndProc_1(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
        static HWND hBtn_1, hSta_1, hEdt_1, hChe_1, hRad_1, hRad_2, hRad_3, hCmb_1; // ??????????? ????????? ????
    static HWND hEdt_2, hEdt_3, hEdt_4, hBtn_2;
    static char ch[256];
    static double a = 0, b = 0, c = 0;
    switch (message)
    {
        
               case WM_CREATE:
            
            hBtn_1 = CreateWindowA("BUTTON", "Êíîïêà", WS_CHILD | WS_VISIBLE, 10, 10, 100, 25, hwnd, (HMENU)ID_BTN_1, hInst, NULL);
            hSta_1 = CreateWindowA("STATIC", "Ñòàòè÷åñêèé ýëåìåíò", WS_CHILD | WS_VISIBLE | SS_SUNKEN | SS_NOTIFY | SS_CENTERIMAGE | SS_CENTER, 10, 40, 300, 25, hwnd, (HMENU)ID_STA_1, hInst, NULL);
            hEdt_1 = CreateWindowA("EDIT",   "Òåêñòîâîå ïîëå", WS_CHILD | WS_VISIBLE | WS_BORDER | ES_AUTOVSCROLL | ES_CENTER | ES_MULTILINE, 10, 70, 300, 50, hwnd, (HMENU)ID_EDT_1, hInst, NULL);
            hChe_1 = CreateWindowA("BUTTON", "Ôëàæîê", WS_CHILD | WS_VISIBLE | BS_AUTOCHECKBOX, 10, 125, 100, 25, hwnd, (HMENU)ID_CHE_1, hInst, NULL);
            hRad_1 = CreateWindowA("BUTTON", "Ðàäèîêíîïêà", WS_CHILD | WS_VISIBLE | BS_AUTORADIOBUTTON, 10, 150, 110, 25, hwnd, (HMENU)ID_RAD_1, hInst, NULL);
            hRad_2 = CreateWindowA("BUTTON", "Ðàäèîêíîïêà", WS_CHILD | WS_VISIBLE | BS_AUTORADIOBUTTON, 10, 180, 110, 25, hwnd, (HMENU)ID_RAD_2, hInst, NULL);
            hRad_3 = CreateWindowA("BUTTON", "Ðàäèîêíîïêà", WS_CHILD | WS_VISIBLE | BS_AUTORADIOBUTTON, 10, 210, 110, 25, hwnd, (HMENU)ID_RAD_3, hInst, NULL);
            hCmb_1 = CreateWindowA("COMBOBOX", "ÊîìáîÁîêñ(Ñïèñîê)", WS_CHILD | WS_VISIBLE | WS_VSCROLL | CBS_DROPDOWN | CBS_AUTOHSCROLL, 10, 240, 200, 100, hwnd, (HMENU)ID_COM_1, hInst, NULL);
            hEdt_2 = CreateWindowA("EDIT", "", WS_CHILD | WS_VISIBLE, 410, 70, 300, 25, hwnd, (HMENU)ID_EDT_2, hInst, NULL);
            hEdt_3 = CreateWindowA("EDIT", "", WS_CHILD | WS_VISIBLE, 410, 100, 300, 25, hwnd, (HMENU)ID_EDT_3, hInst, NULL);
            hEdt_4 = CreateWindowA("EDIT", "", WS_CHILD | WS_VISIBLE, 410, 130, 300, 25, hwnd, (HMENU)ID_EDT_4, hInst, NULL);
            hBtn_2 = CreateWindowA("BUTTON", "+", WS_CHILD | WS_VISIBLE, 410, 160, 300, 25, hwnd, (HMENU)ID_BTN_2, hInst, NULL);
            /**/
            return 0;
    };
    return DefWindowProc(hwnd, message, wParam, lParam);
};
// ======================================================================================================
LRESULT CALLBACK WndProc_2(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    return DefWindowProc(hwnd, message, wParam, lParam);
};
// ====== Ãëàâíàÿ ôóíêöèÿ (ñîçäà¸ì îñíîâíîå îêíî ïðîãðàììû è çàïóñêàåì öèêë îáðàáîòêè ñîîáùåíèé) ========
int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    // Ñîçäà¸ì ðîäèòåëüñêîå è äî÷åðíèå îêíà -------------------------------------------------------------
    hWnd[0] = Wnd(hInst, WndProc_0, NULL,    "Çàãîëîâîê îñíîâíîãî îêíà",   NULL, 10, 10, 1195, 500, 1);
    hWnd[1] = Wnd(hInst, WndProc_1, hWnd[0], "Çàãîëîâîê äî÷åðíåãî îêíà 1", NULL, 25, 35, 1195, 500, 1);
    hWnd[2] = Wnd(hInst, WndProc_2, hWnd[0], "Çàãîëîâîê äî÷åðíåãî îêíà 2", NULL, 40, 60, 1195, 500, 1);
    // Ïîìåùàåì äî÷åðíèå îêíà â ðàáî÷óþ îáëàñòü ðîäèòåëüñêîãî îêíà --------------------------------------
    MoveWindow(hWnd[1], left, top, width, height/2, TRUE);
    MoveWindow(hWnd[2], left, top + height/2, width, height/2, TRUE);
    // Öèêë îáðàáîòêè ñîîáùåíèé -------------------------------------------------------------------------
    while(GetMessageW(&msg,NULL,0,0)){TranslateMessage(&msg);DispatchMessageW(&msg);};
};
// ======================================================================================================