MFC teaches you how to write pop-up menus



In VS2008, it is not possible to add pop-up menus as vc++6.0 through compnents and controls, which need to be added manually. You can create pop-up menus in two ways.

First, the use of existing menu resources to create

(1) First create a new menu resource under menu in Resource View.

(2) Then edit the new menu to look like the pop-up menu you want.

(3) Add the Wm_rbuttondown message to the CView class and add the following code in the message function Onrbuttondown ():

[Cpp]view plaincopyprint?

1 void Cmenuview::onrbuttondown (UINT nflags, CPoint Point)

2 {

3//TODO: Add the message Handler code here and/or call the default value

4

5//Create pop-up menu with existing menu resources

6 CMenu menu;

7 menu. LOADMENUW (IDR_MENU1); To load an existing menu resource

8 CMenu *ppopupmenu = menu. GetSubMenu (0); Get to create a good pop-up menu

9 ClientToScreen (&point); Converts the coordinates of the client area to the screen coordinates

//ppopupmenu->trackpopupmenu (Tpm_leftalign, Point.x, Point.y, GetParent ());

One Ppopupmenu->trackpopupmenu (tpm_leftalign | Tpm_rightbutton, Point.x, Point.y, this); Mouse Right click pop-up menu

12

Cview::onrbuttondown (nflags, point);

14}

void Cmenuview::onrbuttondown (UINT nflags, CPoint Point)

{

TODO: Add the message Handler code here and/or call the default value

Create a pop-up menu with existing menu resources

CMenu menu;

Menu. LOADMENUW (IDR_MENU1); To load an existing menu resource

CMenu *ppopupmenu = menu. GetSubMenu (0); Get to create a good pop-up menu

ClientToScreen (&point); Converts the coordinates of the client area to the screen coordinates

Ppopupmenu->trackpopupmenu (Tpm_leftalign, Point.x, Point.y, GetParent ());

Ppopupmenu->trackpopupmenu (Tpm_leftalign | Tpm_rightbutton, Point.x, Point.y, this); Mouse Right click pop-up menu

Cview::onrbuttondown (nflags, point);

}

Second, dynamically create pop-up menu

Creating a pop-up menu dynamically refers to the creation of a complete code type, adding the following code to the Wm_rbuttondown message:

[Cpp]view plaincopyprint?

void Cmenuview::onrbuttondown (UINT nflags, CPoint Point)

16 {

/TODO: Add Message Handler code here and/or invoke default values

18//Create pop-up menu dynamically

CMenu menu;

menu. CreatePopupMenu (); Create a pop-up menu

menu. APPENDMENUW (Mf_bycommand | Mf_string, Id_right_clear, _t ("Shear (&x)")); Add Child menu item

menu. APPENDMENUW (Mf_bycommand | Mf_string, Id_right_copy, _t ("Copy (&c)"));

The menu. APPENDMENUW (Mf_bycommand | Mf_string, Id_right_paste, _t ("Paste (&p)"));

menu. APPENDMENUW (Mf_separator);

menu. APPENDMENUW (Mf_bycommand | Mf_string, Id_right_clear, _t ("Clear \tctrl + C"));

ClientToScreen (&point); Converts the coordinates of the client area to the coordinates of the screen

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