[Windows] static menu programming --API

 

 

// definition of data types and data structures windows.h file contains the desired application 
#include <windows.h> 
#include <stdlib.h> 
#include <time.h> 
#include " menu_1.h " 
# the include <math.h> 
LRESULT CALLBACK the WndProc (the HWND, UINT, WPARAM, LPARAM); // window function description
 // --------- following initialization window class ----------- --- 
int WINAPI the WinMain (hInstance the hINSTANCE, the hINSTANCE hPrevInst, the lpszCmdLine LPSTR, int the nCmdShow) 
{ 
    the HWND HWND; 
    the MSG Msg; 
    the WNDCLASS WNDCLASS; 
    char , lpszClassName [] = " window " ;      // window class name
    char lpszTitle [] = " My_Windows " ;     // window title name 

    // window class definition 
    wndclass.style the CS_HREDRAW = | CS_VREDRAW;                   // window type is the default type 
    wndclass.lpfnWndProc = the WndProc;       // window handler for the WndProc 
    WNDCLASS. = cbClsExtra 0 ;              // window class without extension 
    wndclass.cbWndExtra = 0 ;              // window instance no extension 
    wndclass.hInstance = hInstance;      // this instance handle 

    wndclass.hIcon = the LoadIcon (NULL, IDI_APPLICATION); // minimized window icon is the default icon
    = the LoadCursor wndclass.hCursor (NULL, IDC_ARROW); // window using the cursor arrow 
    wndclass.hbrBackground = (HBRUSH) the GetStockObject (WHITE_BRUSH); // window background is white 
    wndclass.lpszMenuName = " the MENU1 " ; // window no menu 
    wndclass =, lpszClassName .lpszClassName; // window class named "sample window"
 // ----------- the register window classes 
    IF (! the RegisterClass (& WNDCLASS)) // if the registration fails issuing warnings Gao sound 
    { 
        the MessageBeep ( 0 );
         return FALSE; 
    } 

// Create window 
    hwnd = the CreateWindow (
                        lpszClassName, // window class name 
                        lpszTitle,       // title name of the window instance 
                        WS_OVERLAPPEDWINDOW, // window style 
                        CW_USEDEFAULT, 
                        CW_USEDEFAULT,   // upper left corner of the window coordinates to the default value 
                        CW_USEDEFAULT, 
                        CW_USEDEFAULT,   // Gao and wide to the default value of the window 
                        NULL,            // the window no parent window 
                        NULL,            // the window without the main menu 
                        hInstance,       // create this window applications currently handles
                        NULL             // do not use this value 
                        ); 



    the ShowWindow (HWND, the nCmdShow);         // display window 
    the UpdateWindow (HWND);                  // draw a user area 
    the while (the GetMessage (& Msg, NULL, 0 , 0 )) // message loop 
    { 
        TranslateMessage ( & Msg); 
        the DispatchMessage ( & Msg); 
    } 
    return msg.wParam;                   // program termination information back to the system 
}
 #define the LR (+ rect.left rect.right)
 #define TD (rect.bottom+rect.top)
#define R 50
#define PI acos(-1)

//窗口函数
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    HDC hDC;
    HBRUSH hBrush;
    RECT rect;
    HPEN hPen;
    PAINTSTRUCT PtStr;
    POINT p;
    static bool isTria = false, isCir = false, isTex = false;
    COLORREF color[7] = {RGB(255,0,0), RGB(255,165,0), RGB(255,255,0), RGB(0,255,0), RGB(0,255,255), RGB(0,0,255), RGB(139,0,255)};

    switch(message)
    {
    case WM_COMMAND:
        switch(LOWORD(wParam))
        {
        case IDM_DRAW_CIR:
            isCir = true;
            InvalidateRect(hWnd, NULL, 1);
            return 0;
        case IDM_DRAW_TRI:
            isTria = true;
            InvalidateRect(hWnd, NULL, 1);
            return 0;
        case IDM_DRAW_TEX:
            isTex = true;
            InvalidateRect(hWnd, NULL, 1);
            return 0;
        }
        return 0;
    case WM_CREATE:
        return 0;
    case WM_PAINT:
        GetClientRect(hWnd, &rect);
        hDC = BeginPaint(hWnd, &PtStr);
        GetClientRect(hWnd,&rect);

        if (isCir)
        {
            hPen = CreatePen(PS_SOLID, 5, color[2]);
            SelectObject(hDC, hPen);
            Ellipse(hDC, (rect.right+rect.left)/2-100, (rect.bottom+rect.top)/2-100, (rect.right+rect.left)/2+100, (rect.bottom+rect.top)/2+100);
            DeleteObject(hPen);
            isCir = false;
        }
        else if (isTria)
        {
            hPen = CreatePen(PS_SOLID, 5, color[5]);
            SelectObject(hDC, hPen);
            MoveToEx(hDC,  (rect.right+rect.left)/2, (rect.bottom+rect.top)/3,NULL);
            LineTo(hDC, (rect.right+rect.left)*2/3, (rect.bottom+rect.top)*2/3);
            LineTo(hDC, (rect.right+rect.left)/3, (rect.bottom+rect.top)*2/3);
            LineTo(hDC,(rect.right+rect.left)/2, (rect.bottom+rect.top)/3);
            DeleteObject(hPen);
            isTria = false;
        }
        else if (isTex)
        {
            SetTextColor(hDC, color[0]);
            DrawText(hDC, "我爱学VC++", -1, &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
            isTex = false;
        }

        Of EndPaint (the hWnd, & PTSTR); 

        return  0 ; 

    Case the WM_DESTROY: 
        PostQuitMessage ( 0 );                  // calls PostQuitMessage WM_QUIT message sent 
        return  0 ;
     default :
         return the DefWindowProc (the hWnd, Message, the wParam, the lParam); // use the default system messages The default handler 

    } 

}