Thread: 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

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++.

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;
	}

Is your resource script (.rc) being compiled?

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.

Well, I didn't even have to define the icon...

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 .

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.