Thread: Bitmaps

It's not complicated at all. Forget all the other defines, they are crap. Just remind the #define IDB_BALL 101 part.

>>Forget all the other defines, they are crap. Just remind the #define IDB_BALL 101 part.

The IDB_BALL will be an image. Will need the resource script .rc file (which contains the actual image, bmp) or the code will still do nothing because it will fail to load the image.


>>The invalid cast you're getting is a casting error because you're compiling poorly written C code with C++. Just add a (HBITMAP) cast before SelectObject and that error should go away.

Or if using C (not C++) use .c file not .cpp files. Then you will not need the cast.

Ah. So is that all I need in the resource, or do I need all the other junk as well ?
Cheers.

I'll post them all then :

Test.cpp :

Code:

#include <windows.h>
#include "resource.h"

int mb_result = 0;                                          // For quit message.
const char g_szClassName[] = "WindowClass";
BOOL RemoveMenu(HMENU hMenu, UINT uPosition, UINT uFlags);  // For system menu editing.

HBITMAP g_hbmBall = NULL;

// Step 4: the Window Procedure

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    
    switch(msg)
    
    {
        HMENU hSysMenu;    // System menu handle.
        
        case WM_CREATE:
        
        {
            ////////////////////////////////////////////////////////////////////
            //////////////////////////// BMP Stuff /////////////////////////////
            ////////////////////////////////////////////////////////////////////
            
            g_hbmBall = LoadBitmap(GetModuleHandle(NULL), MAKEINTRESOURCE(IDB_BALL));
            
            if( g_hbmBall == NULL )
            {
                
                MessageBox(hwnd, "Could not load bitmap!", "Error", MB_OK | MB_ICONEXCLAMATION);
                
            }    
            
            ////////////////////////////////////////////////////////////////////
            
            hSysMenu = GetSystemMenu(hwnd, FALSE);
		    RemoveMenu(hSysMenu, 1, MF_BYPOSITION);
		    
		    hSysMenu = GetSystemMenu(hwnd, FALSE);
		    RemoveMenu(hSysMenu, 2, MF_BYPOSITION);
		    
		    hSysMenu = GetSystemMenu(hwnd, FALSE);
		    RemoveMenu(hSysMenu, 3, MF_BYPOSITION);    // Get rid of system menu items.
		    
		    hSysMenu = GetSystemMenu(hwnd, FALSE);
		    RemoveMenu(hSysMenu, 4, MF_BYPOSITION);
		    
		    hSysMenu = GetSystemMenu(hwnd, FALSE);
		    RemoveMenu(hSysMenu, 5, MF_BYPOSITION);
		    
		    hSysMenu = GetSystemMenu(hwnd, FALSE);
		    RemoveMenu(hSysMenu, 6, MF_BYPOSITION);
		
        }
		
	break;
		
		
		
	case WM_PAINT:
        
        {
            BITMAP bm;
            PAINTSTRUCT ps;

            HDC hdc = BeginPaint(hwnd, &ps);

            HDC hdcMem = CreateCompatibleDC(hdc);
            HBITMAP hbmOld = ( HBITMAP ) SelectObject(hdcMem, g_hbmBall);

            GetObject(g_hbmBall, sizeof(bm), &bm);

            BitBlt(hdc, 0, 0, bm.bmWidth, bm.bmHeight, hdcMem, 0, 0, SRCCOPY);

            SelectObject(hdcMem, hbmOld);
            DeleteDC(hdcMem);

            EndPaint(hwnd, &ps);
        
        }
        
        break;

		
	////////////////////////////// Menu Actions ////////////////////////////
		
	case WM_COMMAND:    // Menu was pressed:
		    
            switch(LOWORD(wParam))    // 
            
            {
                
                case ID_FILE_EXIT:    // ID_FILE_EXIT is pressed:
                
                {
                    
                    PostMessage(hwnd, WM_CLOSE, 0, 0);    // Exit.
                    
                }
                
                break;
                
                
                
                case ID_EXECUTE_RUN:
                
                {
                    
                    MessageBox(NULL, "This is where you'd put your 'Run' code.", "Test", MB_OK);
                    
                }
                
                break;
                
            }
        
        break;    
		
        ////////////////////////////////////////////////////////////////////////
		
        case WM_CLOSE:
        
        mb_result = MessageBox ( NULL, "        Do you wish to exit the program ?                    ", "   Exit", MB_YESNO | MB_ICONEXCLAMATION );
        
        if ( mb_result == IDYES )
        
        {
        
            DestroyWindow(hwnd);
            
        }    
        
        break;
        
        
        
        case WM_DESTROY:
            
        DeleteObject(g_hbmBall);

        PostQuitMessage(0);
        
        break;
        
        
        
        default:
        
        return DefWindowProc(hwnd, msg, wParam, lParam);
    
    }
    
    return 0;

}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow)
{
    HMENU GetSystemMenu(HWND hWnd, BOOL bRevert);   // Handle for system menu menu.
    WNDCLASSEX wc;
    HWND hwnd;
    MSG Msg;

    //Step 1: Registering the Window Class
    
    wc.cbSize        = sizeof(WNDCLASSEX);
    wc.style         = 0;
    wc.lpfnWndProc   = WndProc;
    wc.cbClsExtra    = 0;
    wc.cbWndExtra    = 0;
    wc.hInstance     = hInstance;
    wc.hIcon         = LoadIcon(NULL, IDI_APPLICATION);
    wc.hCursor       = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 2 );
    wc.lpszMenuName  = MAKEINTRESOURCE(IDR_MENU);
    wc.lpszClassName = g_szClassName;
    wc.hIconSm       = LoadIcon(NULL, IDI_APPLICATION);

    if(!RegisterClassEx(&wc))
    {
        MessageBox(NULL, "Window Registration Failed!", "   Error!", MB_ICONERROR | MB_OK);
        return 0;
    }

    // Step 2: Creating the Window
    
    hwnd = CreateWindowEx(
        0,
        g_szClassName,
        "Win32",
        WS_BORDER | WS_CAPTION | WS_SYSMENU,
        0, 0, 250, 250,
        NULL, NULL, hInstance, NULL);

    if(hwnd == NULL)
    {
        MessageBox(NULL, "Window Creation Failed!", "   Error!",
        MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    ShowWindow(hwnd, SW_MAXIMIZE);
    UpdateWindow(hwnd);

    // Step 3: The Message Loop
    
    while(GetMessage(&Msg, NULL, 0, 0) > 0)
    {
        TranslateMessage(&Msg);
        DispatchMessage(&Msg);
    }
    
    return Msg.wParam;
}

Here's resource.h :

Code:

#define IDR_MENU    0x12

#define ID_FILE_EXIT	13

#define ID_EXECUTE_RUN  14

#define ID_EXECUTE_DEFAULT  15

/////////////// Bitmap . ///////////////

#define IDB_BALL 0x012

Finally Menu.rc :

Code:

#include "resource.h" 

IDR_MENU MENU

BEGIN

    POPUP "&File"

    BEGIN 

        MENUITEM "Exit", 13

    END
    
    POPUP "&Execute"
    
    BEGIN
    
        MENUITEM "Run", 14
        MENUITEM "&Default", 15, GRAYED
        
    END
END

/////////////// Bitmap. ///////////////

0x6263 BITMAP "C:/Dev-Cpp/Programs/Test/Ball.bmp"

That's it. It's probably just some stupid mistake I've made. (I hope not, that would be so embarrassing.) However, if anyone notices anythin' wrong with the code, please point it out to me. Thanks to anyone who can help.

Cheers

P.S. All resources and headers have been added to the project.