CODEWITHSUNDEEP
c++menu
Robert Cumming
Robert Cumming

Reputation: 21

how to create a win32 application with Windows menus using c++ and using the visual studio 2017 menu editor

After creating a win32 project using visual Studio 2017 community I have added to the menus pop downs that are already there. After I added below 'File' a popup item 'Mypop', I opened the properties of the new option and copied the ID; 'ID_FILE_MYPOP' into my WndProc WM_COMMAND loop.

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)

... case ID_FILE_MYPOP: break;

It appears with error message "identifier ID_FILE_MYPOP is undefined".

I can only correct this by opening the resource.h file, it responds "this file is already open in another device do you want to close it?". If I reply yes, then I can see the contents of resource.h file and it includes ID_FILE_MYPOP. Then if I close the resource.h file the error message in WndProc disappears and the menu addition works correctly.

MY QUESTION IS:

Do I have to open and close the resource.h header file every time I add a menu item to resource.rc file?

What application might have the resource.h file open?

If anyone could help me I would really appreciate it.

ps I can also remove the error statement if I open and shut the project solution.

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM 
lParam)
{
    switch (message)
{
    case WM_COMMAND:
    {
        int wmId = LOWORD(wParam);
        // Parse the menu selections:
        switch (wmId)
        {
        case  ID_FILE_MYPOP:
            break;
        case IDM_ABOUT:
            DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
            break;
        case ID_NEWEDITIDAPPROACH:
            break;
        case IDM_NEW7:
            break; 
        case IDM_EXIT:
            DestroyWindow(hWnd); 
            break;
        default:
            return DefWindowProc(hWnd, message, wParam, lParam);
        }
    }
    break;

...}

Upvotes: 0

Views: 1326

Answers (1)

mommos
mommos

Reputation: 189

Double click the resource file in the solution explorer - the resource editor should open (and this is the app opening the resource.h):

Resource file in the solution explorer

Upvotes: 0

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