C / C++ / MFC

Member 2965471 wrote:

So i've to call SetWindowSubclass function and set my own EditProc in which handle WM_CONTEXTMENU?

Mark Salsbery
Microsoft MVP - Visual C++

HWND hwndDlg = CreateDialog(...);

MSG msg;
while(GetMessage(&msg,0,0,0)){
    if(msg.hwnd == GetDlgItem(hwndDlg,ID_MYEDITCONTROL) && msg.message == WM_RBUTTONDOWN)
        ;     // WM_RBUTTONDOWN has been received for ID_MYEDITCONTROL on hwndDlg; show your context menu here
    else{
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
}

// In message map
BEGIN_MESSAGE_MAP(CMyWnd, CWnd)
  ON_REGISTERED_MESSAGE(m_nRegMsg, OnRegisteredMessage)
END_MESSAGE_MAP()

1.65 - Math::Floor(1.65)

#include <windows.h>

/*  Declare Windows procedure  */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);

/*  Make the class name into a global variable  */
char szClassName[ ] = "CodeBlocksWindowsApp";

int WINAPI WinMain (HINSTANCE hThisInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR lpszArgument,
                     int nCmdShow)
{
    HWND hwnd;               /* This is the handle for our window */
    MSG messages;            /* Here messages to the application are saved */
    WNDCLASSEX wincl;        /* Data structure for the windowclass */

    /* The Window structure */
    wincl.hInstance = hThisInstance;
    wincl.lpszClassName = szClassName;
    wincl.lpfnWndProc = WindowProcedure;      /* This function is called by windows */
    wincl.style = CS_DBLCLKS;                 /* Catch double-clicks */
    wincl.cbSize = sizeof (WNDCLASSEX);

    /* Use default icon and mouse-pointer */
    wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
    wincl.lpszMenuName = NULL;                 /* No menu */
    wincl.cbClsExtra = 0;                      /* No extra bytes after the window class */
    wincl.cbWndExtra = 0;                      /* structure or the window instance */
    /* Use Windows's default colour as the background of the window */
    wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;

    /* Register the window class, and if it fails quit the program */
    if (!RegisterClassEx (&wincl))
        return 0;

    /* The class is registered, let's create the program*/
    hwnd = CreateWindowEx (
           0,                   /* Extended possibilites for variation */
           szClassName,         /* Classname */
           "Click to release a ball",       /* Title Text */
           WS_OVERLAPPEDWINDOW, /* default window */
           CW_USEDEFAULT,       /* Windows decides the position */
           CW_USEDEFAULT,       /* where the window ends up on the screen */
           544,                 /* The programs width */
           375,                 /* and height in pixels */
           HWND_DESKTOP,        /* The window is a child-window to desktop */
           NULL,                /* No menu */
           hThisInstance,       /* Program Instance handler */
           NULL                 /* No Window Creation data */
           );

    /* Make the window visible on the screen */
    ShowWindow (hwnd, nCmdShow);

    /* Run the message loop. It will run until GetMessage() returns 0 */
    while (GetMessage (&messages, NULL, 0, 0))
    {
        /* Translate virtual-key messages into character messages */
        TranslateMessage(&messages);
        /* Send message to WindowProcedure */
        DispatchMessage(&messages);
    }

    /* The program return-value is 0 - The value that PostQuitMessage() gave */
    return messages.wParam;
}

////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////
float ballPosX, ballPosY, ballVelocityX, ballVelocityY;
const int myTimerId = 1;
const int intervalMs = 50;

VOID CALLBACK myTimerProc(HWND hwnd,        // handle to window for timer messages
    UINT message,     // WM_TIMER message
    UINT idTimer,     // timer identifier
    DWORD dwTime)     // current system time
{
	ballPosX += ballVelocityX;
	ballPosY += ballVelocityY;
	ballVelocityY -= 0.1;
	InvalidateRect(hwnd, NULL, true);
}

/*  This function is called by the Windows function DispatchMessage()  */
LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	PAINTSTRUCT ps;
	HDC hdc;

    switch (message)                  /* handle the messages */
    {
        case WM_DESTROY:
            KillTimer(hwnd, myTimerId);
            PostQuitMessage (0);       /* send a WM_QUIT to the message queue */
            break;

        case WM_PAINT:
            hdc = BeginPaint(hwnd, &ps);

            SetPixel(hdc, ballPosX, ballPosY, RGB(250,0,0));
            SetPixel(hdc, ballPosX, ballPosY+1, RGB(250,0,0));
            SetPixel(hdc, ballPosX+1, ballPosY, RGB(250,0,0));
            SetPixel(hdc, ballPosX+1, ballPosY+1, RGB(250,0,0));

            EndPaint(hwnd, &ps);
            break;

        case WM_LBUTTONUP:
            ballPosX=0;
            ballPosY=0;
            ballVelocityX=3.2;
            ballVelocityY=8.1;

            KillTimer(hwnd, myTimerId);
            SetTimer(hwnd, myTimerId, intervalMs, myTimerProc);
            break;

        default:                      /* for messages that we don't deal with */
            return DefWindowProc (hwnd, message, wParam, lParam);
    }

    return 0;
}