Resource(.rc) Help in DevCPP

This is a discussion on Resource(.rc) Help in DevCPP within the Windows Programming forums, part of the Platform Specific Boards category; This is the first time im using DevCPP i used to use VC++6. Now im having trouble setting the icon ...

  1. #1
    Information Crocodile
    Join Date
    Dec 2004
    Posts
    204

    Resource(.rc) Help in DevCPP

    This is the first time im using DevCPP i used to use VC++6. Now im having trouble setting the icon of my app. The exe have the icon correctly set but the titlebar doesnt have it set when i open it. I always see the exclamation mark icon. Im not used to creating my resource script manually so probably it must be it or maybe i just forgot something and i cant see it.

    Heres the code.

    Main:
    Code:
    int WINAPI WinMain( HINSTANCE hThisInstance, HINSTANCE hPrevInstance,
        LPSTR lpStrArg, int iCmdShow )
    {
        MSG msg;
        CWindow *CWMain = new CWindow( hThisInstance );
        SelfMessageBox *msgBox = new SelfMessageBox( CWMain->getWindowHandle() );
    
        CWMain->setWindowProc( CWindowProc );
        CWMain->setIcon( LoadIcon( 0, 
            MAKEINTRESOURCE( IDI_FIDE_ICON ) ) ); // Seticon here
        
        if( CWMain->initializeWindow() == 0 ){
            msgBox->newMessage( "Initialization Error:", "Error", MB_OK ); 
            goto cleanup;
        }
        
        while( GetMessage( &msg, NULL, 0, 0 ) > 0 ){
            TranslateMessage( &msg );
            DispatchMessage( &msg );
        }
        
        cleanup:
         delete msgBox;
         delete CWMain;
         return msg.wParam;
    }

    Heres is CWindow Class:

    Code:
    #ifndef _CWINDOW_H_
    #define _CWINDOW_H_
    
            class CWindow {
                public:
                    CWindow( HINSTANCE );
                    int initializeWindow();
                    void setVisible( int );  
                    void setWindowProc( WNDPROC );
                    HWND getWindowHandle();
                    void setTitle( char *sTitle );
                    void setIcon( HICON );
                private:
                    WNDPROC wndProc;
    				HWND hwnd;
                    HINSTANCE hInstance;
                    HICON appIcon;
                    long width, height;
                    char szClassName[128] ;
                    char szTitle[128];
                              
                };    
    #endif
    
    int CWindow::initializeWindow()
    {
        WNDCLASSEX wc = { 0 };
        
        wc.cbSize        = sizeof( WNDCLASSEX );
        wc.style         = 0;
        wc.lpfnWndProc   = wndProc;
        wc.cbClsExtra    = 0;
        wc.cbWndExtra    = 0;
        wc.hInstance     = hInstance;
        wc.hIcon         = appIcon;
        wc.hCursor       = LoadCursor( 0, IDC_ARROW );
        wc.hbrBackground = (HBRUSH)COLOR_BTNSHADOW;
        wc.lpszMenuName  = 0;
        wc.lpszClassName = szClassName;
        wc.hIconSm       = appIcon;
    
        if( RegisterClassEx( &wc ) == 0 )
            return 0;
        else {
    		hwnd = CreateWindowEx( 0, szClassName, szTitle, 
             WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN,CW_USEDEFAULT, 
             CW_USEDEFAULT, width, height, NULL, NULL, hInstance, NULL );
             
            if( hwnd == 0 )
                return 0;
        }
    
        setVisible( 1 );
        return 1;  
    }  
    
    void CWindow::setVisible( int iCmdShow )
    {
        ShowWindow( hwnd, iCmdShow );
        UpdateWindow( hwnd );                                                                      
    }
    
    void CWindow::setIcon( HICON pIcon )
    {
        appIcon = pIcon;
    }

    Heres the .rc
    Code:
    IDI_FIDE_ICON ICON DISCARDABLE "resfiles/fide.ico"
    here Resource.h
    Code:
    #define IDI_FIDE_ICON 101

  2. #2
    Reverse Engineer maxorator's Avatar
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    Aug 2005
    Location
    Estonia
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    I think you don't need to load the icon in Dev-C++. Dev-C++ automatically does it if you have something like this in your .rc file:
    Code:
    500 ICON MOVEABLE PURE LOADONCALL DISCARDABLE "resfiles\\fide.ico"
    And I think you know what I mean when I say don't use VC++ in Dev-c++.

  3. #3
    Information Crocodile
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    Posts
    204
    It didnt work.

    heres my rc
    Code:
    101 ICON MOVEABLE PURE LOADONCALL DISCARDABLE "resfiles\\fide.ico"
    my resource.h
    Code:
    #define IDI_FIDE_ICON 101

    This app is supposed to be an MDI app. The Window Proc is not yet complete some parameters in the return value arent set yet. Would this cause a problem with icons not showing??
    Code:
    	LRESULT CALLBACK CWindowProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
    	{
    		
    		switch(msg)
    		{
    			case WM_CREATE:
    			break;
    
    			case WM_COMMAND:
    			break;
    
    			case WM_CLOSE:
    			doClose( hwnd, msg, wParam, lParam );
    			break;
    
    			case WM_SIZE:
    			break;
    
    			case WM_DESTROY:
    			doDestroy( hwnd, msg, wParam, lParam );
    			break;
    
    			case WM_NOTIFY:
    			break;
    
    			default:
    				return DefFrameProc( hwnd, 0, msg, wParam, lParam );  // Not Complete yet. Second param not yet set. 		}
    		
    		return 0;
    	}

  4. #4
    Even death may die... Dante Shamest's Avatar
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    Is your resource script (.rc) being compiled?

  5. #5
    Information Crocodile
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    Yes. It shows when compiling. I tried making errors in rc and it detects it. So its being compiled. And also the compiled exe has the icon set. Just wont show when run.

  6. #6
    Reverse Engineer maxorator's Avatar
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    Well, I didn't even have to define the icon...

  7. #7
    Information Crocodile
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    Quote Originally Posted by maxorator
    Well, I didn't even have to define the icon...

    Didnt work. Okay be back ill try to work it out myself. Ill post here wht happens. Thnks for the helps .

  8. #8
    Reverse Engineer maxorator's Avatar
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    Dev-C++ has some examples with it. You can see how the icons are used there. And you can choose an icon for your program from project options.

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