Driving Ctatic::DrawItem - C / C++ / MFC Discussion Boards

Richard MacCutchan11-Dec-18 6:00

11-Dec-18 6:00

Yes, all of this is possible, but you will need to write the code to do it. Lots of suggestions for the first part in list directory c - Google Search[^].

Re: List HDD files in CListView

_Flaviu11-Dec-18 7:52

_Flaviu

11-Dec-18 7:52

No, there is no problem listing files found on HDD, but setup them an icon (in CListView of course) just like Windows Explorer does, and then have the same contextual menu like Windows Explorer has ...

Re: List HDD files in CListView

Richard MacCutchan11-Dec-18 22:01

Richard MacCutchan

11-Dec-18 22:01

Windows Explorer uses a splitter window. The left hand pane is a TreeView and the right is (usually) a ListView. Both Windows controls are clearly documented on MSDN.

Re: List HDD files in CListView

David Crow11-Dec-18 13:27

David Crow

11-Dec-18 13:27

_Flaviu wrote:

1. Have an item icon just like you see in standard windows explorer.

See here.

_Flaviu wrote:

2. Have right click menu just like you have in standard windows explorer.

See here.

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Re: List HDD files in CListView

_Flaviu11-Dec-18 22:36

_Flaviu

11-Dec-18 22:36

I am really sorry because I was not clear on my first post.

Let say I list a text file in my CListView. And I must setup an icon to that item, but that icon should be exactly like in windows explorer. I mean, if a text file in windows explorer has a Notepadd++ icon, I wish the same icon to my CListView. The same matter if I list a pdf file ... if this file has a pdf icon in windows explorer, I wish to have the same icon to the item that list that pdf file in my CListView.

And if I see in windows explorer a contextual menu, I wish to have the same contextual menu in my CListView.

Re: List HDD files in CListView

David Crow12-Dec-18 2:53

David Crow

12-Dec-18 2:53

For icons, see here and here.

Re: List HDD files in CListView

_Flaviu12-Dec-18 23:15

_Flaviu

12-Dec-18 23:15

Ok, thank you, I guess I am on the right road regarding icons ... remain only context menu Smile | :)

Driving Ctatic::DrawItem

ForNow10-Dec-18 15:16

ForNow

10-Dec-18 15:16

I have an owerdraw ComboBox When a user selects an Item I want to Display the Detail info

I figure I could use the same Dialog for Background

So for the 6 CStatic and Their 6 Labels I do ShowWindow(SW_HIDE)

I saw the following post on how to drive DrawItem by Calling invalidate an the SetWindowText

Getting owner draw child control to paint when calling SetWindowText - vc.mfc[^]

So I create my own derived CStatic

C++

class MyStatic : public CStatic
{ DECLARE_DYNAMIC(MyStatic)
public:
	MyStatic();
	~MyStatic();
	
	void SetWindowText(LPSTR);
	void DrawItem(LPDRAWITEMSTRUCT pdis);

};

This my SSetWindowText

C++

void MyStatic::SetWindowText(LPSTR lpsz)
{
	Invalidate();
	CStatic::SetWindowText(lpsz);

}

two bad things on the way to getting where I want

1) I get an exception in wincore.cpp at the retrun ::CallWindowProc

C++

RESULT CWnd::DefWindowProc(UINT nMsg, WPARAM wParam, LPARAM lParam)
{
	if (m_pfnSuper != NULL)
		return ::CallWindowProc(m_pfnSuper, m_hWnd, nMsg, wParam, lParam);

	WNDPROC pfnWndProc;
	if ((pfnWndProc = *GetSuperWndProcAddr()) == NULL)
		return ::DefWindowProc(m_hWnd, nMsg, wParam, lParam);
	else

2) After the exception my Drawitem is called however ItemData doesn't have the String pointer and and is NULL

Thanks

Re: Driving Ctatic::DrawItem

ForNow11-Dec-18 15:58

ForNow

11-Dec-18 15:58

Didn't have a message map entry from my Derived CStatic

also the text of the Static control isn't set in the itemData you have to a GetWindowText to get it

with those two fixes everything worked

有什么学习途径

Member 140765679-Dec-18 20:30

Member 14076567

9-Dec-18 20:30

有什么学习MFC的途径和论坛，我是MFC软件开发的。

Re: What is the learning path?

Richard Deeming11-Dec-18 1:09

Richard Deeming

11-Dec-18 1:09

Member 14076567 wrote:
What are the ways and forums for learning MFC, I am developing MFC software.

This is an English-language site. Please post questions in English.

Via Google Translate:
这是一个英语网站。请用英文发布问题。

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- Homer

AfxMessage doesn’t block

ForNow6-Dec-18 2:02

ForNow

6-Dec-18 2:02

Hi
I’m again having different results in debug and release this one isn’t a bug but different program behavior.
I have 4 CwinThread Wrappers for CAsynSocket
In debug because processing is slowed somewhat by int 3 breakpoints I Receive all my about 3500 bytes of data from the Mainframe computer. In release I don’t get it all in one transmission I have a full word or a short int in the begging of the stream to tell me how much data
My method to debug this in the past was issue a AfxMessage and attach the debugger
This always seemed to work with the Mainthread
I didn’t even notice the message box come up in this scenario except by hovering my mouse on the tray at the bottom of the screen I don’t think I can use __debugbreak in Release
Anyway to stop this thread so that I can attach the debugger to see what’s going on
I forgot to add this UI thread was created before I created the CMainFrame Window however in the past I was able to have an AfxMessageBox in the CWinApp constructor and it worked
Thanks

modified 6-Dec-18 10:10am.

Re: AfxMessage doesn’t block

Victor Nijegorodov6-Dec-18 5:22

Victor Nijegorodov

6-Dec-18 5:22

Why are you using AfxMessageBox in a secondary thread? Confused | :confused:

Re: AfxMessage doesn’t block

ForNow6-Dec-18 5:26

ForNow

6-Dec-18 5:26

Will use Message box establish my main window before thread creation and will move the CFrameWnd ::m_hWnd to UI thread window thanks

Re: AfxMessage doesn’t block

Victor Nijegorodov6-Dec-18 8:45

Victor Nijegorodov

6-Dec-18 8:45

It is not a good design to display a messagebox form any secondary thread.
Better would be PostMessage a user defined message to the main GUI thread with the parameters that you want to be displayed and let the main thread display it.

Re: AfxMessage doesn’t block

ForNow6-Dec-18 8:49

ForNow

6-Dec-18 8:49

This is just to debug a scenario that only happen in release I have to have a way of stopping the thread in release and attaching the debugger if there is a better way please share thanks

Keyboard functionality for IExplorerBrowser

_Flaviu5-Dec-18 20:59

_Flaviu

5-Dec-18 20:59

How can I get all keyboard functionality for IExplorerBrowser[^] in a MFC app ? I have context menu options available for mouse, but not for keyboard (Ctrl+C, Ctrl+V, Ctrl+A, etc.). Is there any method to have these commands in my app ? I am pretty sure that is possible, but I don't know how Smile | :)

modified 6-Dec-18 3:47am.

Found Api's Causing Heap Corruption

ForNow5-Dec-18 2:23

ForNow

5-Dec-18 2:23

These lines in My DrawItem Api are causing the heap corruption

C++

if(arrayptr[pdi->itemID] == NULL)
	        arrayptr[pdi->itemID] = new char(9);
	memset(arrayptr[pdi->itemID], 0x00, 9);
	memcpy(arrayptr[pdi->itemID], lpszText, 8);