How to extract and save icon resources
Author: Xu Jing Zhou
Download sample source code (http://www.9cbs.net/cnshare/soft/9/9199.shtm)
What should I do when you want to use a beautiful icon in other applications? Maybe it will use some icon extraction tools! So, do you know how they do, I don't want to do it yourself, do it for your own icon extraction tool? Let me let me tell you if I use a tool I have done before! It can extract icon resources in various files and save it as an icon (ICO), bitmap (BMP) format. The interface after the program is running as follows:
In the routine above, I integrate a icon class CICONS and a bitmap class CDIB that is matching with it, including Icons.h, Icons.cpp, Dib.h and Dib.cpp four files. After adding these four files directly in your project, call its number of cullets, you can make your own icon tool.
Let's take a look at how to use them to implement:
1. Extract and display the icon to the left list box.
The code is implemented as follows:
// Read various resource internal icons and display in the list box
Void Ciconsnapdlg :: Onok ()
{
Cfiledialog Filedialog (True, "*. ICO", NULL, NULL, "resource file (* .ico, *. BMP, *. EXE, *. DLL, *. ICL) | * .ico; *. Bmp; *. EXE; *. DLL; *. ICL || ");
IF (FileDialog.Domodal () == iDOK)
{
SzopenFileName = filedialog.getpathname ();
SzopenfireExtName = fileDialog.getfileext ();
SzopenfileextName.maker ();
M_List.resetContent (); // Select the empty left icon list box
// read and display the icon file
IF (szopenfileextname == "iCO")
{
LPIR = Picons-> ReadiConfromicofile (SzopenFileName);
Hicon Hicon;
Hicon = Extracticon (AfxgetInstanceHandle (), SzopenFileName, 0);
IF (Hicon! = NULL)
M_List.Addstring (SzopenFileName);
CSTATIC * PStatic = (cstatic *) getdlgitem (IDC_ICONS);
PStatic-> seticon (HICON);
}
Else if (SzopenfileExTName == "BMP") // reads and displays BMP files
{
Picons-> iconimageFromBMPFile (SzopenFileName, & lpir-> iconImages [0], true);
Hicon Hicon;
Hicon = Picons-> MakeiconFromResource (& lpir-> iconimages [0]);
IF (Hicon! = NULL)
M_List.Addstring (SzopenFileName);
CSTATIC * PStatic = (cstatic *) getdlgitem (IDC_ICONS);
PStatic-> seticon (HICON);
}
Else // Read and display resource files such as EXE, DLL
{
Hinstance hlibrary;
// load the DLL / EXE - NOTE: Must Be a 32bit EXE / DLL for this to workif ((Hlibrary = LoadLibraryEx (SzopenFileName, Null, Load_library_AS_DataFile) == NULL)
{
// failed to load - Abort
MessageBox (SzopenFileName "file load error, must be Win32 file!", "Error", MB_OK;
Return;
}
// store the info
Edii.szfilename = SzopenFileName;
EDII.HINSTANCE = HLIBRARY;
// Fill in The Listbox with the icons available
IF (! ENUMRESOURCENAMES (EDII.HINSTANES (EDII.HINSTANCE, RT_GROUP_ICON, (EnumResNameProc) MyenumProcedure, (LPARAM) getsafehwnd ()))))
{
MessageBox ("Enumerates the icon resource name!", "Error", MB_OK;
Return;
}
}
M_List.Setcurseel (0);
IF (m_list.getcount () == 0)
{
MessageBox ("There is no icon resource in this file!", "Error", MB_OK;
// No icon resource, save and copy the button for invalidity
m_copy.enableWindow (FALSE);
m_saveas.enableWindow (FALSE);
Return;
}
// There is a icon resource, set the save and copy buttons for valid status.
m_copy.enableWindow;
m_saveas.enablewindow;
// Refresh the call onpaint to display the icon
INVALIDATERECT (NULL, TRUE);
}
}
The following code is added to the onpaint () mandate to specifically display the extracted icon or bitmap resources.
/ / According to the left icon list, use onPaint () to update the right icon
LPTSTR LPICONID;
Hicon Hicon;
IF ((lpiconid = (lptstr) m_list.getitemdata (m_list.getcurseel ()))))))))! = (lptstr) lb_err)
{
IF (szopenfileextname == "exe" || szopenfileextName == "dll" || szopenfileextName == "ICL")
{
Hicon = picons-> geticonfrominstance (EDII.HINSTANCE, LPICONID);
CSTATIC * PStatic = (cstatic *) getdlgitem (IDC_ICONS);
PStatic-> seticon (HICON);
}
}
2. How to save the extracted icon resource as an ICO or BMP format.
/ / Save the icon resource for the ICO or BMP format file
Void ciconsnapdlg :: onbuttonsaveas ()
{
LPTSTR LPICONID;
Cfiledialog FileDialog (False, "*. ICO", NULL, NULL, "icon file (* .ico) | * .ico | Bitmap file (* .bmp) | * .bmp ||");
IF (fileDialog.domodal () == iDok) {
szsavefilename = filedialog.getpathname ();
szsavefileextname = fileDialog.getfileext ();
szsavefileextname.makelower ();
IF (szopenfileextname == "exe" || szopenfileextName == "dll" || szopenfileextName == "ICL")
IF ((lpiconid = (lptstr) m_list.getitemdata (m_list.getcurseel ()))))))))! = (lptstr) lb_err)
LPIR = Picons-> ReadiconFromExefile (SzopenFileName, LPICONID);
IF (szsavefileextname == "bmp")
{
IF (lpir! = null && m_list.getcount ()> 0)
{
Beginwaitcursor ();
Picons-> iconimagetobmpfile (szsavefilename, & lpir-> iconimages [0]);
ENDWAITCURSOR ();
}
Else
MessageBox ("No saved icon resources!", "Error", MB_OK;
}
Else IF (szsavefileextname == "iCO")
{
IF (lpir! = null && m_list.getcount ()> 0)
{
Beginwaitcursor ();
Picons-> WriteicontOICofile (LPIR, SZSAVEFILENAME);
ENDWAITCURSOR ();
}
Else
MessageBox ("No saved icon resources!", "Error", MB_OK;
}
}
}
Detailed implementation of the above code, please take a closer look at the source code.
Contact information:
Email: jingzhou_xu@163.com
Future Studio (Future Studio)
