Bmp background in C++

This is a discussion on Bmp background in C++ within the C++ Programming forums, part of the General Programming Boards category; I made a program and would like to know how to put a wallpaper behind. with this code put an ...

  1. #1
    Registered User
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    Aug 2008
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    23

    Bmp background in C++

    I made a program and would like to know how to put a wallpaper behind.
    with this code put an orange with a yellow line!

    Code:
    #include "stdafx.h"
    #include "Painter.h"
    
    BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved)
    {
    	DisableThreadLibraryCalls(hModule);
    	return true;
    }
    
    class BackgroundPainter : public Painter
    {
    private:
    	HBRUSH brush;
    	HPEN pen;
    	HFONT font;
    
    public:
    	virtual void Paint(HDC hdc, int horizonOffsetY, int viewOffsetX, int viewOffsetY, int viewWidth, int viewHeight, int x, int y, int width, int height)
    	{
    		SelectObject(hdc, pen);
    		SelectObject(hdc, font);
    		SetTextColor(hdc, RGB(0, 0, 0));
    		SetBkMode(hdc, TRANSPARENT);
    
    		RECT rc = { x, y, x + width, y + height };
    		FillRect(hdc, &rc, brush);
    
    		//como não tem nenhum tratamento especial, apenas soma os dois
    		viewOffsetY += horizonOffsetY;
    
    		MoveToEx(hdc, viewOffsetX, viewHeight + viewOffsetY, 0);
    		LineTo(hdc, viewOffsetX + 300, viewHeight + viewOffsetY - 300);
    		LineTo(hdc, viewOffsetX + 600, viewHeight + viewOffsetY);
    		LineTo(hdc, viewOffsetX + 900, viewHeight + viewOffsetY - 300);
    		LineTo(hdc, viewOffsetX + 1200, viewHeight + viewOffsetY);
    
    		SetTextAlign(hdc, TA_LEFT);
    		TextOut(hdc, 0, 0, TEXT("Eu sou o topo!"), 14);
    		TextOut(hdc, viewOffsetX, viewHeight + viewOffsetY - 20, TEXT("Eu sou o baseline!"), 18);
    
    		SetTextAlign(hdc, TA_RIGHT);
    		TextOut(hdc, viewWidth, viewHeight + viewOffsetY - 20, TEXT("Eu sou o baseline no canto!"), 27);
    	}
    
    	virtual BOOL Initialize()
    	{
    		brush = CreateSolidBrush(RGB(255, 117, 24));
    		pen = CreatePen(PS_SOLID, 2, RGB(255, 201, 14));
    		font = (HFONT)GetStockObject(ANSI_VAR_FONT);
    		return true;
    	}
    
    	virtual void Terminate()
    	{
    		DeleteObject((HGDIOBJ)brush);
    		DeleteObject((HGDIOBJ)pen);
    		delete this;
    	}
    };
    
    __declspec(dllexport) Painter* __stdcall CreateBackgroundPainter()
    {
    	return new BackgroundPainter();
    }

  2. #2
    Registered User rogster001's Avatar
    Join Date
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    Location
    Liverpool UK
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    1,438
    This is for windows programming innit?
    Thought for the day:
    "Are you sure your sanity chip is fully screwed in sir?" (Kryten)
    FLTK: "The most fun you can have with your clothes on."

    Stroustrup:
    "If I had thought of it and had some marketing sense every computer and just about any gadget would have had a little 'C++ Inside' sticker on it'"

  3. #3
    Frequently Quite Prolix dwks's Avatar
    Join Date
    Apr 2005
    Location
    Canada
    Posts
    8,048
    Search for examples (on MSDN or elsewhere) that demonstrate the LoadBitmap() or the LoadImage() function. (Apparently the latter is preferred over the former.)
    dwk

    Seek and ye shall find. quaere et invenies.

    "Simplicity does not precede complexity, but follows it." -- Alan Perlis
    "Testing can only prove the presence of bugs, not their absence." -- Edsger Dijkstra
    "The only real mistake is the one from which we learn nothing." -- John Powell


    Other boards: DaniWeb, TPS
    Unofficial Wiki FAQ: cpwiki.sf.net

    My website: http://dwks.theprogrammingsite.com/
    Projects: codeform, xuni, atlantis, nort, etc.

  4. #4
    train spotter
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    I suggest you read about GDI leaks and how a Device Contex works (as your code is leaking 2 GDI objects each time it paints).
    Under .NET you may not notice this leak or it may crash the whole computer.

    I have posted code to do this or similar many time before.
    "Man alone suffers so excruciatingly in the world that he was compelled to invent laughter."
    Friedrich Nietzsche

    "I spent a lot of my money on booze, birds and fast cars......the rest I squandered."
    George Best

    "If you are going through hell....keep going."
    Winston Churchill

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