Linker error, I messed up with my SDK directory - C / C++ / MFC Discussion Boards

Sydney Liles23-Oct-02 7:18

23-Oct-02 7:18

I am trying to capture a bitmap or an icon from a .bmp or .ico file selected by a user from a standard CFileDialog dialog.

LoadImage() always fails (returns 0 and hBitmap or hIcon are NULL). Cry | :((

//Code snipet<br />
   CString strAppPath;<br />
   CSString strImagesDirectory;<br />
   CString pathName;<br />
   CString fileName;<br />
   CString extName;<br />
   HICON hIcon;<br />
   HBITMAP hBitmap;<br />
	<br />
   //launch a pick file dialog<br />
   CFileDialog dlg(TRUE, NULL, NULL, OFN_HIDEREADONLY, "Bitmap(*.BMP)|*.BMP|Icon(*.ico) <br />
                   *.ico||", this);<br />
   if( dlg.DoModal() == IDOK )<br />
   {<br />
      pathName = dlg.GetPathName();<br />
      fileName = dlg.GetFileTitle();<br />
      extName = dlg.GetFileExt();<br />
<br />
      if (extName == "ico" || extName == "ICO")<br />
      {		<br />
          hIcon = (HICON)::LoadImage( NULL, pathName, IMAGE_ICON, 0, 0,   <br />
                                      LR_LOADFROMFILE|LR_DEFAULTCOLOR ); <br />
          if (hIcon)<br />
             SetIcon(hIcon, TRUE);<br />
      }<br />
      else<br />
      {<br />
         hBitmap = (HBITMAP)::LoadImage( NULL, "C:\\HAPPY.BMP", IMAGE_BITMAP, 0, 0, <br />
                                         LR_LOADFROMFILE|LR_CREATEDIBSECTION);<br />
         if (hBitmap)<br />
            bmpImage->Attach(hBitmap);<br />
      }<br />
	<br />
      //some more interesting code here...<br />
}

I have tried a number of things with the second parameter of the LoadImage() call -- hard coded path to the file, path as captured by the CFileDialog, image files in the root directory and located in a variety of other locations (including the directory of the working project). Nothing works. I have searched the documentation and what I have should work.

I am working on Windows 2000 Professional and in Visual Studio .NET but in unmanaged C++ code.

Anyone have any idea whta I am doing wrong? Confused | :confused:

Sydney Liles
Software Engineer

Re: Platform SDK's LoadImage()

Stephane Rodriguez.23-Oct-02 7:49

Stephane Rodriguez.

23-Oct-02 7:49

The first parameter should be the instance of your module. Passing NULL instead is only for OEM images.

How low can you go ?
(MS rant)

Re: Platform SDK's LoadImage()

Sydney Liles23-Oct-02 8:16

Sydney Liles

23-Oct-02 8:16

This is one of the things I have tried. I tried it again after I got your response. No luck. Unsure | :~

I changed the code to look like this:

//launch a pick file dialog<br />
CFileDialog dlg(TRUE, NULL, NULL, OFN_HIDEREADONLY, "Bitmap(*.BMP)|*.BMP|Icon(*.ico)<br />
                |*.ico||", this);<br />
if( dlg.DoModal() == IDOK )<br />
{<br />
   pathName = dlg.GetPathName();<br />
   BYTE FileBuffer[10240] = "";<br />
   fileName = dlg.GetFileTitle();<br />
   extName = dlg.GetFileExt();<br />
<br />
   HINSTANCE hInst = AfxGetInstanceHandle();<br />
<br />
   if (extName == "ico" || extName == "ICO")<br />
   {		<br />
      hIcon = (HICON)::LoadImage(hInst, pathName, IMAGE_ICON, 0, 0, <br />
                                 LR_LOADFROMFILE|LR_DEFAULTCOLOR); <br />
      if (hIcon)<br />
	SetIcon(hIcon, TRUE);<br />
   }<br />
   else<br />
   {<br />
      hBitmap=(HBITMAP)::LoadImage(hInst, "C:\\HAPPY.BMP", IMAGE_BITMAP, 0, 0, <br />
                                   LR_LOADFROMFILE|LR_CREATEDIBSECTION);<br />
      if (hBitmap)<br />
	bmpImage->Attach(hBitmap);<br />
   }<br />
	<br />
   //some more interesting code here...<br />
}

I know I am getting a valid HINSTANCE.

Any other suggestions?

BTW -- I really do appreciate the help.

Sydney Liles
Software Engineer

Re: Platform SDK's LoadImage()

Stephane Rodriguez.23-Oct-02 8:27

Stephane Rodriguez.

23-Oct-02 8:27

Code from MSDN[^].

How low can you go ?
(MS rant)

Re: Platform SDK's LoadImage()

Sydney Liles23-Oct-02 8:43

Sydney Liles

23-Oct-02 8:43

Boy, I sound like my children (no, that won't work) Eek! | :eek:

I did try that -- This is one of the documents I found that discusses LoadImage(). The problem remains the same. When I add this code to my own, then the LoadImage() call in the LoadBitmapFromBMPFile() fails.

BOOL LoadBitmapFromBMPFile( LPTSTR szFileName, HBITMAP *phBitmap,<br />
   HPALETTE *phPalette )<br />
   {<br />
<br />
   BITMAP  bm;<br />
<br />
   *phBitmap = NULL;<br />
   *phPalette = NULL;<br />
<br />
   // Use LoadImage() to get the image loaded into a DIBSection<br />
   <big>*phBitmap = (HBITMAP)LoadImage( NULL, szFileName, IMAGE_BITMAP, 0, 0,<br />
               LR_CREATEDIBSECTION | LR_DEFAULTSIZE | LR_LOADFROMFILE );</big> <br />
  if( *phBitmap == NULL )<br />
     return FALSE;<br />

I think there is something going on with LoadImage() itself. I thought that the .bmp files I was using to test might be the problem because they are very old and have not been updated. I got a .bmp with lots more information stored in the properties and it does not work either.

The only thing I can think of is that LoadImage() fails on Win2K. I read a Microsoft Knowledge Base article to this effect http://support.microsoft.com/default.aspx?scid=kb;en-us;Q329092. I do not have access to a Win9x machine with Visual Studio installed to test this theory.

Thanks though.

Sydney Liles
Software Engineer

Re: Platform SDK's LoadImage()

Paul M Watt23-Oct-02 9:49

Paul M Watt

23-Oct-02 9:49

What does GetLastError return after you call this function and it fails?

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: Platform SDK's LoadImage()

Sydney Liles23-Oct-02 9:56

Sydney Liles

23-Oct-02 9:56

Funny you should ask. Big Grin | :-D

I just added a call to GetLastError() a few minutes ago and realized that I had created a CFile (to get size information), opened it, read the contents of the .bmp into a buffer(in an attempt to get LoadImage() to work) and then closed it after I attempted to call LoadImage() -- GetLastError() returned 32 (ERROR_SHARING_VIOLATION). I moved the CFile::Close() to before the call to LoadImage() and now all is well.

It was a dumb thing to over look. Wish I had tried the GetLastError() sooner. Dead | X|

Oh well.

Thanks for all of the help.

Sydney Liles
Software Engineer

Linker error, I messed up with my SDK directory

User 665823-Oct-02 7:10

User 6658

23-Oct-02 7:10

Hi
the last few weeks I modified some files in my Platform-SDK directory, resulting in linker errors and missing files Roll eyes | :rolleyes:

Now I have uninstalled the latest Platform SDK completely and reinstalled it again, but I still keep getting this error (German):

C:\PROGRAMME\MICROSOFT SDK\LIB\LIBC.lib : fatal error LNK1112: Computer-Typ "IA64" fuer Modul steht in Konflikt mit dem Ziel-Computer-Typ "IX86"

This seems to me to be a conflict between 32bit and 64bit libraries. My project is build for 32bit platforms.
But the first library path the compiler should use is defined as C:\PROGRAMME\MICROSOFT SDK\LIB\, that's why I don't know how the error can occur.

thanks in advance
Greg

modified 12-Sep-18 21:01pm.

Re: Linker error, I messed up with my SDK directory

Stephane Rodriguez.23-Oct-02 7:50

Stephane Rodriguez.

23-Oct-02 7:50

Try to find this path in the registry, and modify it or kill it.

How low can you go ?
(MS rant)

Re: Linker error, I messed up with my SDK directory

User 665823-Oct-02 8:56

User 6658

23-Oct-02 8:56

I did both, but nothing helped Frown | :(

modified 12-Sep-18 21:01pm.

string

wong190723-Oct-02 7:02

wong1907

23-Oct-02 7:02

Hello,

I want to ask how to store a String in 2-D array foramt?

e.g.
abc[0][0]="A";
abc[0][1]="AA";
abc[0][2]="AAA";
......
....
..
abc[n][n]="AAAAAAAAAAAAAAA";

THX!!!
I am not using MFC, just the console mode!!!
I think it for a long time!!!

Re: string

Alvaro Mendez23-Oct-02 11:34

Alvaro Mendez

23-Oct-02 11:34

If your 2-D array will simply hold literal strings, like in your example, declare it as a 2-D array of pointers to characters, like this:

char* abc[N][N];

This assumes N is a predefined constant value.

Regards,
Alvaro

Insanity: doing the same thing over and over again and expecting different results. - Albert Einstein

Safe file padding?

clintsinger23-Oct-02 5:51

clintsinger

23-Oct-02 5:51

I am developing for a Windows CE device in which there is a bug where files that are divisble by 2048 aren't copiable from the permanent storage to the volatile storage. At this moment I have been just checking to see if the exe's and dll's are divisible by 2048 and if so add some characters to the end of the file. Is this a safe practice or should I be doing something else.

I have tried putting an int padding[] = {0, 1,..., etc} in the file but it seems the file doesn't change in size; which, I could only assume is the optimizing compiler removing it.

Cheers,
Clint

Re: Safe file padding?

Daniel Turini23-Oct-02 5:55

Daniel Turini

23-Oct-02 5:55

I'm sure that there is a linker setting for this, but I can't remember it at all...

And, for the padding, for the compiler optimizer do not remove it, try do something, like reading all the array in a for loop...

Q261186 - Computer Randomly Plays Classical Music

Accessing Internet through Proxy using Winsock

Ph@ntom23-Oct-02 5:46

Ph@ntom

23-Oct-02 5:46

I was trying to get Googles webpage by using Winsock. But the real problem is I am behind Firewall (Microsoft ISA). As far as the Winsock is concerned getting webpage within the Firewalll is not difficult. But when I try to access behind the Firewall the Server won't allow me anymore.

Please anyone can help regarding how can I access a webserver behind firewall by using Winsock. How can I use or implement Proxy support in my program. Frown | :(

Dammy More

Re: Accessing Internet through Proxy using Winsock

pjnaughter23-Oct-02 9:23

pjnaughter

23-Oct-02 9:23

You should check out the relavent RFC on supporting a HTTP Proxy. For an example of winsock programming which works thro a HTTP proxy, check out my CDDB class at http://www.naughter.com/mfccddb.html

sndPlay freakin' Sound

Jh323-Oct-02 4:19

Jh3

23-Oct-02 4:19

hi
it's my third time posting this question in as many days! I wrote my own wave file, but when i want to play it with sndPlaySound, i only get a beep from the PC speaker. Other applications play the file fine, and other wave files are played with the sndPlaySound function in my app.
WHAT'S WRONG?

PLEASE!! Mad | :mad:

Re: sndPlay freakin' Sound

Matt Philmon23-Oct-02 4:26

Matt Philmon

23-Oct-02 4:26

Send me the file and the snippet of code that plays it.

system command using MFC

achandra00723-Oct-02 4:18

achandra007

23-Oct-02 4:18

Is there a system type command in MFC? Or do I have to use system to launch another application from within my application?

Thanks
ashish

Re: system command using MFC

Simon.W23-Oct-02 4:34

Simon.W

23-Oct-02 4:34

Try ShellExecute

I am seeking...
For what?
Why did you ask me for what? I don't know!

Re: system command using MFC

pjnaughter23-Oct-02 4:34

pjnaughter

23-Oct-02 4:34

CreateProcess, WinExec, ShellExecute or ShellExecuteEx spring to mind. All documented in the MSDN

Re: system command using MFC

Ravi Bhavnani23-Oct-02 7:18

Ravi Bhavnani

23-Oct-02 7:18

Nice to see you on the VC++ forum, PJN!

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

Re: system command using MFC

l a u r e n23-Oct-02 7:44

l a u r e n

23-Oct-02 7:44

seconded

"even if my world is weird it's my world"
biz stuff about me

About Threads

Mel Feik23-Oct-02 3:55

Mel Feik

23-Oct-02 3:55

Admittedly I know less about threads then I thought I did about an hour ago. I had thought that threads allow for a process to be completed at the same time code execution is continuing past the creation of the thread. Is this a correct way to look at them (threads) and if so, is there a way to hold the program until the completion of the last created thread?

---------------------------------------------

Be good! But if you can't be good, at least be good at it and try not to get any on ya!

-mjf

Re: About Threads

Ryan_Roberts23-Oct-02 4:05

Ryan_Roberts

23-Oct-02 4:05

Collect the handles that each createthreadex_ call returns to you in an array. Then call WaitForMultipleObjects on the the array in you exit handler. You can then guarantee that all your child theads have completed before your process thread.

Ryan.

Computers allow you to make more mistakes than any other invention, with the possible exception of handguns and tequila.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.