C / C++ / MFC

Re: can any one help me to make context menu in win32 API

6-Feb-07 1:45

no pblm ...use sdk calls it self

POINT pt;
HMENU hMenu=LoadMenu(hInst,TEXT("IDR_MENU1"));
Point pt;
pt = GetCurrentMessage()->pt;
HMENU hSubmenu = GetSubMenu( hMenu,0 );
TrackPopupMenu( hSubmenu, TPM_LEFTALIGN, pt.x, pt.y, hList, 0 );

but dont forget to make the delete as submenu.

i found another ppblm in your code

HMENU hMenu=LoadMenu(hInst,TEXT("IDR_MENU1"));
TrackPopupMenu(hmenuTrackPopup,TPM_LEFTALIGN | TPM_RIGHTBUTTON,pt.x, pt.y, 0, hList, NULL);

in the above code that you pasted earlier, you r loading the menu to hMenu. But your calling the TrackPopupMenu with handle hmenuTrackPopup

nave

amitmistry_petlad 6-Feb-07 1:59

Re: can any one help me to make context menu in win32 API

6-Feb-07 1:59

yes thanks !
actually when I received your mail at the same time i have did it.
and when i have compare with your code its same.
Thanks once again.
Rose | [Rose]

amitmistry_petlad 6-Feb-07 2:19

Re: can any one help me to make context menu in win32 API

6-Feb-07 2:19

hi nave ,
ask you one question how can i handle an event for the delete button
for that i have put my code in

<br />
case WM_COMMAND:<br />
<br />
		switch(LOWORD(wParam))<br />
		{		<br />
		case ID_DELETE_DELETE: <br />
			{<br />
				int iSlected=0;<br />
				iSlected=SendMessage(hList,LVM_GETNEXTITEM,-1,LVNI_FOCUSED);<br />
				if(iSlected==-1)<br />
				  {<br />
					MessageBox(hList,_T("No Items in ListView"),_T("Error"),MB_OK|MB_ICONINFORMATION);<br />
					break;<br />
					}				<br />
				 ListView_DeleteItem(hList,iSlected);		<br />
			}<br />
<br />
			break;<br />
	<br />
		}<br />
<br />

should it work or now i have to write somewhere else?

Amit

Hamid_RT6-Feb-07 6:08

Hamid_RT

6-Feb-07 6:08

Did you run your code and what happens and also you can use of LVNI_SELECTED

WhiteSky

Re: can any one help me to make context menu in win32 API

Naveen6-Feb-07 16:12

Re: can any one help me to make context menu in win32 API

6-Feb-07 16:12

amitmistry_petlad wrote:
iSlected=SendMessage(hList,LVM_GETNEXTITEM,-1,LVNI_FOCUSED);

better use LVNI_SELECTED

every thing else seems to be fine

nave

amitmistry_petlad 6-Feb-07 17:30

Re: can any one help me to make context menu in win32 API

6-Feb-07 17:30

I have changed it but the "delete" is not working.
should i have to change anything else?

Amit

Naveen6-Feb-07 18:03

Re: can any one help me to make context menu in win32 API

6-Feb-07 18:03

Whats the value of selected item?

nave

amitmistry_petlad 6-Feb-07 18:29

Re: can any one help me to make context menu in win32 API

6-Feb-07 18:29

When i debug at the break point of the WM_COMMAND.
the control does not go there. then where should it goes ?
is it come in listview command ?
if it is call in listview notify command then how could i write ?

LOOK AT CODE:

case WM_PAINT:
		//Fill the PAINTSTRUCT structure with information about painting and return the handle to the display device context.
			hdc = BeginPaint(hDlg, &ps);
		////Retrieves the coordinates of windows Client area.
		//GetClientRect(hDlg, &rc);
		////Create a logical brush with specified color to paint the window.
		//hBrush = CreateSolidBrush(RGB(69,13,24));
		////Fill the client area with above color.
		//FillRect(hdc, &rc, hBrush);
		////End of painting in this window.

		////Load the background image for Header window
		//hBmp = LoadBitmap(hInst,MAKEINTRESOURCE(IDB_BITMAP_HEADER_TEXT));
		////Create compatible device context to load the bmp file.
		//memDC = CreateCompatibleDC(hdc);
		////select the image object into the device context created in above step.
		//SelectObject(memDC,hBmp);
		////Copy the sample into header window(hdc) from created device context i.e. memDC.
		//BitBlt(hdc, 15, 50, 300, 200, memDC, 0, 0, SRCCOPY);
		////Delete the created device context.
		//DeleteDC(memDC);
		////Delete object.
	 //   DeleteObject(memDC);
		EndPaint(hDlg, &ps);
		//Delete the logical brush.
		//DeleteObject(hBrush);
		break;

////NOTIFY
	case WM_NOTIFY:
		{
			switch(LOWORD(wParam))
			{
			    case IDC_LIST4: 
				
				LPNMLISTVIEW pnm = (LPNMLISTVIEW)lParam;

                if(pnm->hdr.hwndFrom == hList &&pnm->hdr.code == NM_CUSTOMDRAW)
                {
                 //   SetWindowLong(hWnd, DWL_MSGRESULT, (LONG)ProcessCustomDraw(lParam));
                    return TRUE;
                }

				if(((LPNMHDR)lParam)->code == LVN_KEYDOWN)
				{		
				
					//if(((LPNMHDR)lParam)->code==VK_DELETE)

					{				
						int iSlected=0;
						iSlected=SendMessage(hList,LVM_GETNEXTITEM,-1,LVNI_FOCUSED);
						if(iSlected==-1)
						  {
							MessageBox(hList,_T("No Items in ListView"),_T("Error"),MB_OK|MB_ICONINFORMATION);
							break;
						}				
					 ListView_DeleteItem(hList,iSlected);		
					}
				}			
				
                if(((LPNMHDR)lParam)->code == NM_RCLICK)
				{					    
					//HMENU hmenuTrackPopup;  // shortcut menu 
					//POINT pt;
					//GetCursorPos(&pt); 
					////HMENU hMenu=LoadMenu(hInst,TEXT("IDR_MENU1"));
					//
					//HMENU hMenu=LoadMenu(hInst,IDR_MENU1)	;
					//hmenuTrackPopup= GetSubMenu(hMenu, 0);						
					//TrackPopupMenu(hmenuTrackPopup,TPM_LEFTALIGN | TPM_RIGHTBUTTON,pt.x,pt.y,0, hDlg, NULL);									
					HMENU hMenu = LoadMenu (NULL, MAKEINTRESOURCE (IDR_MENU1));
					HMENU hPopupMenu = GetSubMenu (hMenu, 0);
					POINT pt;
					SetMenuDefaultItem (hPopupMenu, -1, TRUE);
					GetCursorPos (&pt);
					//SetForegroundWindow (hWnd);
					TrackPopupMenu (hPopupMenu,TPM_LEFTALIGN, pt.x, pt.y, 0, hList, NULL);
					//SetForegroundWindow (hWnd);
					DestroyMenu (hPopupMenu);
					DestroyMenu (hMenu);
					
				}
							
				
				if(((LPNMHDR)lParam)->code == NM_CLICK)
				{
					iSelect=SendMessage(hList,LVM_GETNEXTITEM,-1,LVNI_FOCUSED);				    
					if(iSelect==-1)
					{                      
					  break;
					}					
					index=iSelect;		
					ShowWindow(hWndinoutfiledir,SW_HIDE);			
					ShowWindow(hwndEncrypt,SW_HIDE);					
					//Hide File Split window.
					ShowWindow(hwndSplit,SW_HIDE);
					//Hide encoder window.			
					ShowWindow(hwndUpload,SW_HIDE);
					ShowWindow(hwndTagEditorDlg ,SW_SHOW);
				}

				

              
                break;
			}
		}

		break;

////////////////////////////// when i  right click the button "delete" display and the code is following but its not debug or working where the control goes ?
<code>
	case WM_COMMAND:

		switch(LOWORD(wParam))
		{		
		case ID_DELETE_DELETE: 
			{
				int iSlected=0;
				iSlected=SendMessage(hList,LVM_GETNEXTITEM,-1,LVNI_SELECTED);

				if(iSlected==-1)
				  {
					MessageBox(hList,_T("No Items in ListView"),_T("Error"),MB_OK|MB_ICONINFORMATION);
					break;
				  }				
			 ListView_DeleteItem(hList,iSlected);
			}
			break;	
		}				
		break;
	}
	return FALSE;

}
</code>

Amit

Naveen6-Feb-07 18:36

Re: can any one help me to make context menu in win32 API

6-Feb-07 18:36

amitmistry_petlad wrote:
TrackPopupMenu (hPopupMenu,TPM_LEFTALIGN, pt.x, pt.y, 0, hList, NULL);

ok i found out the pblm.

u should not specify hList in the TrackPopupMenu function. Instead specify the handle of dialog
( in your case it hWnd ).

nave

amitmistry_petlad 6-Feb-07 18:54

Re: can any one help me to make context menu in win32 API

6-Feb-07 18:54

yes ! thanks it done,
but one more, have you seen my code for LVN_KEYDOWN .
Now i want specify it for VK_DELETE only.
right now it works but for all key i want only for "Delete" key from "keyboard"

i had comment the code for VK_DELETE .
HOW ITS WORK FINE?

Naveen6-Feb-07 19:03

Re: can any one help me to make context menu in win32 API

6-Feb-07 19:03

hmm. i checked it now. Modify the code as below

if(((LPNMHDR)lParam)->code == LVN_KEYDOWN)               <br />
{<br />
LV_KEYDOWN* pLVKeyDow = (LV_KEYDOWN*)lParam;<br />
    if( pLVKeyDow->wVKey == VK_DELETE  )<br />
    {<br />
        // your code to delete the row<br />
    }<br />
}

nave

amitmistry_petlad 6-Feb-07 19:51

6-Feb-07 19:51

thank you very much
Rose | [Rose]

TCHAR

asdtry5-Feb-07 23:16

asdtry

5-Feb-07 23:16

If i delect my file and it is in unicode then TCHAR should treat as WCHAR otherwise TCHAR as CHAR
Is it possible ?

Michael Dunn5-Feb-07 23:19

Michael Dunn

5-Feb-07 23:19

TCHAR only affects the strings that are in your source code. When you read a data file, you need to know what encoding was used to create the file, and use the appropriate data type (char or wchar_t or an equivalent).

--Mike--
Visual C++ MVP Cool | :cool:

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Ford, what's this fish doing in my ear?

asdtry5-Feb-07 23:28

asdtry

5-Feb-07 23:28

Actually i want TCHAR as WCHAR for unicode type file otherwise CHAR.
But if i enable unicode in project setting .TCHAR always be WCHAR.
But i want for ascii file it should be CHAR.

toxcct5-Feb-07 23:38

toxcct

5-Feb-07 23:38

you already asked this several hours ago[^], and the answer has already been given to you.

you'll be able to set TCHAR as WCHAR or CHAR only once in your code, and this will be definite for the compile time (you cannot change the meaning of TCHAR at runtime !).

if you might read unicode or ansi files, you must :
1) determine the encoding type
2) use the appropriate type to read the file (wchar_t for unicode files, char otherwise)

nothing more.
so please understand this, and find an alternative to what you're trying to design as your solution, because you're doing it wrong

[VisualCalc][Flags Beginner's Guide] | [Forums Guidelines][My Best Advice]

Waldermort6-Feb-07 0:07

Waldermort

6-Feb-07 0:07

You cannot change the meaning of a TCHAR. When reading files, it would be better for you to create two functions, one to read a unicode file, the other to read an ansi file.

#define _UNICODE
#define UNICODE
#include "tchar.h"  // a TCHAR is now a wchar_t

TCHAR *ReadAnsiFile( TCHAR* szFileName )
{
    // Read the file into a TCHAR array
    
    TCHAR TcharBuffer[ size of the file ];
    OpenFile();
#ifdef UNICODE
    char AnsiBuffer[ size of the file ];
    ReadIntoAnsiBuffer();
    ConvertBufferToUnicode();
#else
    ReadIntoTcharBuffer();
#endif
    Return TcharBuffer;
}

TCHAR *ReadUnicodeFile( TCHAR* szFileName )
{
    // Read the file into a TCHAR array

    TCHAR *TcharBuffer[ size of the file ];
    OpenFile();
#ifdef UNICODE
    wchar_t UnicodeBuffer[ sizeoffile ];
    ReadIntoUnicodeBuffer();
    ConvertToAnsi();
#else
    ReadIntoTcharBuffer();
#endif
    Return TcharBuffer;
}

int main()
{
    TCHAR *ReadFile;
    if ( FileIsUnicode )
        ReadFile = ReadUnicodeFile();
    else
        ReadFile = ReadAnsiFile();
}

Christian Graus5-Feb-07 23:49

Christian Graus

5-Feb-07 23:49

If you think that you can change reality by just asking the same question again, then I suggest a career in marketing.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog