C / C++ / MFC

9-Jun-02 14:32

Hi,

I need to be able to show and hide bitmaps in a dialog dynamically. Basically, I want to use the bitmaps to make a card game, but I need to be able to specify their (the cards) locations. I need to be able to do something of the following (yes, I know the following code wont do anything):

ShowBitmapXYZ(0,0);

Or something along those lines.

Thanks,

~ Selevercin

If you have a problem with my spelling, just remember that's not my fault. I [as well as everyone
else who learned to spell after 1976] blame it on
Robert A. Kolpek for U.S. Patent 4,136,395.

PJ Arends9-Jun-02 15:06

PJ Arends

9-Jun-02 15:06

Draw your bitmap in a static control, use SetBitmap(), ShowWindow() and MoveWindow() to control which bitmap where

---
CPUA 0x5041

Sonork 100.11743 Chicken Little

Within you lies the power for good - Use it!

Selevercin9-Jun-02 15:49

9-Jun-02 15:49

What does SetBitmap() do? Also, how can I display multiple copies of the same bitmap?

Thanks,

~ Selevercin

If you have a problem with my spelling, just remember that's not my fault. I [as well as everyone
else who learned to spell after 1976] blame it on
Robert A. Kolpek for U.S. Patent 4,136,395.

PJ Arends9-Jun-02 15:53

PJ Arends

9-Jun-02 15:53

Selevercin wrote:
What does SetBitmap() do?

From MSDN:

CStatic::SetBitmap
HBITMAP SetBitmap( HBITMAP hBitmap );

Return Value

The handle of the bitmap previously associated with the static control, or NULL if no bitmap was associated with the static control.

Parameters

hBitmap

Handle of the bitmap to be drawn in the static control.

Remarks

Call this member function to associate a new bitmap with the static control.

The bitmap will be automatically drawn in the static control. By default, it will be drawn in the upper-left corner and the static control will be resized to the size of the bitmap.

You can use various window and static control styles, including the following:

SS_BITMAP Use this style always for bitmaps.

SS_CENTERIMAGE Use to center in the static control. If the image is larger than the static control, it will be clipped. If it is smaller than the static control, the empty space around the image will be filled by the color of the pixel in the upper left corner of the bitmap.

Selevercin wrote:
how can I display multiple copies of the same bitmap?

Use multiple static controls

---
CPUA 0x5041

Sonork 100.11743 Chicken Little

Within you lies the power for good - Use it!

Selevercin9-Jun-02 16:32

9-Jun-02 16:32

Ok, my program is crashing on the code. This is what I have:

<code>
        CStatic card;
	HBITMAP hBitmap;

	hBitmap = ::LoadBitmap(NULL, MAKEINTRESOURCE(IDB_2));
	card.SetBitmap(hBitmap);

	card.ShowWindow(SW_SHOW);
	card.MoveWindow(100, 100, 23, 35, TRUE);

I know it is the SetBitmap() that is causing it, but what did I do wrong?

Thanks,

~ Selevercin

If you have a problem with my spelling, just remember that's not my fault. I [as well as everyone
else who learned to spell after 1976] blame it on
Robert A. Kolpek for U.S. Patent 4,136,395.

PJ Arends9-Jun-02 16:47

PJ Arends

9-Jun-02 16:47

CStatic card;
card.Create(_T(""), SS_BITMAP, CRect (0,0,0,0), this, An_ID_That_Makes_Sense);
...

You have to create the window before you can SetBitmap() etc.

---
CPUA 0x5041

Sonork 100.11743 Chicken Little

Within you lies the power for good - Use it!

Selevercin9-Jun-02 17:19

Why can't the shell folder handle foreign characters?

9-Jun-02 17:19

Ok, hopefully this is it. For some reason it is not showing it.

<code>
CStatic card;
	HBITMAP hBitmap;
	
	card.Create(_T(""), WS_CHILD | WS_VISIBLE | SS_BITMAP, CRect(23,35,100,100), this, 101);

	hBitmap = ::LoadBitmap(NULL, MAKEINTRESOURCE(IDB_2));
	card.SetBitmap(hBitmap);

	card.ShowWindow(SW_SHOW);
	card.MoveWindow(100, 100, 23, 35, TRUE);

Thanks,

~ Selevercin

If you have a problem with my spelling, just remember that's not my fault. I [as well as everyone
else who learned to spell after 1976] blame it on
Robert A. Kolpek for U.S. Patent 4,136,395.

redeemer9-Jun-02 11:31

Re: Why can't the shell folder handle foreign characters?

9-Jun-02 11:31

I have just made a function that adds all the files from a folder and it's subfolders to a list, but whenever it gets to a filename with a foreign character in it (æøåöä etc.) it fails and the filename gets set to three random characters and a null. How can i add support for foreign characters?

Tkanks!

Mike Nordell9-Jun-02 13:25

Mike Nordell

9-Jun-02 13:25

Perhaps if you explained a little bit more in specific how you got the names it would be possible to answer? Maybe also how and exactly where (in what API) you function fails.

I know for sure that the Win32 API function family FindFirstFile & co. works as expected even with Swedish characters, why I obviously question your bad results re. e.g. "å".

Re: Why can't the shell folder handle foreign characters?

redeemer9-Jun-02 13:21

Re: Why can't the shell folder handle foreign characters?

9-Jun-02 13:21

Here's the function:

void AddFilesFromFolder(ITEMIDLIST *pIdl)
{
	if (pIdl)
	{
		IShellFolder *pBrowse = NULL;
		LPENUMIDLIST pFolder = NULL;
		LPMALLOC pMalloc = NULL;
		ITEMIDLIST *pNewId = NULL;
		ITEMIDLIST *pFullId;
		STRRET strDispName;
		STRRET strPrev;
		LVITEM lvItem;
		char szFolderPath[MAX_PATH+1];
		DWORD pActual = 0;
		DWORD dwAttrib;
		IShellFolder *CurrentFolder;

		if (SHGetDesktopFolder(&CurrentFolder) == NOERROR)
		{
			SHGetMalloc(&pMalloc);
			CurrentFolder->BindToObject(pIdl, NULL, IID_IShellFolder, (LPVOID*)&pBrowse);
			pBrowse->GetDisplayNameOf(pIdl, SHGDN_INFOLDER, &strDispName);
			if (pBrowse->EnumObjects(NULL, SHCONTF_FOLDERS | SHCONTF_NONFOLDERS | SHCONTF_INCLUDEHIDDEN, &pFolder) == NOERROR)
			{
				SHGetPathFromIDList(pIdl, szFolderPath);
				pMalloc->Alloc((unsigned long)pNewId);

				lvItem.mask = LVIF_IMAGE | LVIF_TEXT;

				while (pFolder->Next(1, &pNewId, &pActual) != S_FALSE)
				{
					dwAttrib = SFGAO_FOLDER;
					pBrowse->GetAttributesOf(1, (LPCITEMIDLIST*)&pNewId, &dwAttrib);
						
					if (!(dwAttrib & SFGAO_FOLDER))
					{
						memset(strDispName.cStr, 0, MAX_PATH+1);
						pBrowse->GetDisplayNameOf(pNewId, SHGDN_INFOLDER, &strDispName);
						PathCombine(gszPath, szFolderPath, strDispName.cStr);

						if (strDispName.cStr[3] == '\0')
						{
							showstr(gszPath, &gszMsgBuff[strlen(gszMsgBuff)], 120);
							gszMsgBuff[strlen(gszMsgBuff)] = 13;
							gszMsgBuff[strlen(gszMsgBuff)] = 10;
						}

						if (FindHeader() != -1)
						{
							GetID3();
							FillInfo();
							ListAddItem();
						}

						pBrowse->GetDisplayNameOf(pNewId, SHGDN_INFOLDER, &strPrev);
					}

					if (dwAttrib & SFGAO_FOLDER)
					{
					//From MSDN library
					UINT cb1 = GetSize(pIdl) - sizeof(pIdl->mkid.cb);
					UINT cb2 = GetSize(pNewId);

					pFullId = (LPITEMIDLIST)pMalloc->Alloc(cb1 + cb2);
					if (pFullId)
					{
						CopyMemory(pFullId, pIdl, cb1);
						CopyMemory(((LPSTR)pFullId) + cb1, pNewId, cb2);
						AddFilesFromFolder(pFullId); //Added
					} 
					//End From MSDN Library
					}
				}

				pMalloc->Free(pNewId);
				pMalloc->Release();
				gbFileOpen = true;
				pFolder->Release();
			}

			CurrentFolder->Release();
		}
	}
}

I got the initial PIDL from the SHBrowseForFolder function.

Mike Nordell9-Jun-02 13:35

Mike Nordell

9-Jun-02 13:35

Without event looking at or trying to understand this code, why in the [warm place] would anyone ever want to write this amount of code just to iterate a directory tree?! This looks like "MS Malicious" at best.

If you are only handling filesystems, use FindFirstFile & co. It's much cleaner and probably an order of magnitude faster (I could be wrong, but in this case it seems unlikely). Let me know if you want some example code.

Re: Why can't the shell folder handle foreign characters?

redeemer9-Jun-02 13:47

Re: Why can't the shell folder handle foreign characters?

9-Jun-02 13:47

Is it possible to add all the files in a folder + the filess in the folder's subfolders etc. without that much code? in that case i would very much like some sample code.

Michael Dunn9-Jun-02 15:28

Michael Dunn

9-Jun-02 15:28

redeemer wrote:
Is it possible to add all the files in a folder + the filess in the folder's subfolders etc. without that much code?

Use SHGetPathFromIdList() to get the name of the directory from its PIDL. Then use FindFirstFile/FindNextFile to get the names of the files in that dir.
If you want to stick with the shell interfaces, use CComPtr to manage the interface reference counts for you.

BTW in your original code, I think your bug is in your handling of STRRET structs. You can't assume the string is in the .cStr member.

--Mike--
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Re: Why can't the shell folder handle foreign characters?

Mike Nordell9-Jun-02 20:52

Mike Nordell

9-Jun-02 20:52

Once you get a hold of the directory name you can try something like the following. This code is quite bloated, but typing it from memory I can probably be glad that it went through a compiler and worked! Smile | :)

void DoDir(const char* szDir)
{
  WIN32_FIND_DATA fd;
  string sTmp(szDir);
  sTmp += "\\*";
  HANDLE hFind = FindFirstFile(sTmp.c_str(), &fd);
  if (hFind == INVALID_HANDLE_VALUE) {
    cout << "Invalid dir " << szDir << endl;
    return;
  }
  cout << "Directory " << szDir << endl;
  do {
    if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
      const char* psz = fd.cFileName;
      if (psz[0] == '.' &&
          ((psz[1] == '.' && psz[2] == '\0') || psz[1] == '\0'))
      {
        continue;  // skip "." and ".."
      }
      // Recurse into szDir.
      string sNewDir(szDir);
      sNewDir += '\\';
      sNewDir += fd.cFileName;
      DoDir(sNewDir.c_str());
    }
    else {
      cout << setw(9) << (int)fd.nFileSizeLow
           << " " << fd.cFileName << endl;
    }
  } while (FindNextFile(hFind, &fd));
  FindClose(hFind);
}

CFtpConnection::SetCurrentDirectory()

Tony Fontenot9-Jun-02 10:40

Tony Fontenot

9-Jun-02 10:40

I am using CFtpConnection::SetCurrentDirectory() before transferring files to a website. My problem is that when I try to set the directory on a server that has case sensitive directories CFtpConnection::SetCurrentDirectory() fails.

I have made sure that the directory being passed into CFtpConnection::SetCurrentDirectory() is correct but the functions fails. Has anyone else seen this or am I doing it incorrectly.

Thanks in advance.

***********************
Tony Fontenot
Recreational Solutions
tony@recsolutions.com
***********************

How to change caption in VC++

9-Jun-02 10:01

Please tell me how can I change the caption of a window at runtime.

Thanks Confused | :confused:

Re: How to change caption in VC++

Rama Krishna Vavilala9-Jun-02 9:56

Rama Krishna Vavilala

9-Jun-02 9:56

Use SetWindowText API or CWnd::SetWindowText method

How do i give my dialog an icon in the resource editor?

redeemer9-Jun-02 9:47

Re: How do i give my dialog an icon in the resource editor?

9-Jun-02 9:47

Thanks

Paul M Watt9-Jun-02 10:05

Paul M Watt

9-Jun-02 10:05

You can't.

You need to associate the icon with a window at runtime. You do this by calling SetClassLong with the GCL_HICON and GCL_HICONSM flags.

Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!

Re: How do i give my dialog an icon in the resource editor?

redeemer9-Jun-02 11:13