// Main.cpp

// Mirus window framework header
#include "Mirus.h"

// Direct3D header
#include <d3d9.h>


// custom derived class
class D3DWindow : public mrWindow
{
	// Direct3D interfaces
	LPDIRECT3D9			m_pD3D;
	LPDIRECT3DDEVICE9	m_pD3DDevice;

public:
	// Ctor / Dtor
	D3DWindow(){};
	~D3DWindow(){};

	// Setup and shutdown Direct3D
	HRESULT	SetupDirect3D();
	HRESULT	KillDirect3D();

	// Windows manipulation functions
	mrBool32 Frame();
};


// Initialized Direct3D
HRESULT	D3DWindow::SetupDirect3D()
{
	// Create the Direct3D object
	if (NULL ==	(m_pD3D = Direct3DCreate9(D3D_SDK_VERSION)))
	{
		return E_FAIL;
	}

	// Get the current display mode so we can know what bitdepth we are
	D3DDISPLAYMODE d3ddm;
	if (FAILED(m_pD3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT, &d3ddm)))
	{
		return E_FAIL;
	}

	// Fill the present parameters
	D3DPRESENT_PARAMETERS d3dpp;
	ZeroMemory(&d3dpp, sizeof(d3dpp));
	// We want window mode
	d3dpp.Windowed = TRUE;
	// Discard this
	d3dpp.BackBufferFormat = d3ddm.Format;

	// Create the device
	if (FAILED(m_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
									m_hWindow,
									D3DCREATE_SOFTWARE_VERTEXPROCESSING,
									&d3dpp,
									&m_pD3DDevice)))
	{
		return E_FAIL;
	}
	return D3D_OK;
}

// ShutDown Direct3D
HRESULT	D3DWindow::KillDirect3D()
{
	// If any of Direct3D objects exists, release them
	if (NULL != m_pD3D)
	{
		m_pD3D->Release();
	}

	if (NULL != m_pD3DDevice)
	{
		m_pD3DDevice->Release();
	}

	return D3D_OK;
}

// Clear the Screen to blue
mrBool32 D3DWindow::Frame()
{
	// Clear the window to blue
	m_pD3DDevice->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,255), 1.0f, 0);

	// Start rending
	m_pD3DDevice->BeginScene();
	m_pD3DDevice->EndScene();

	// Present the render scence to the screen
	m_pD3DDevice->Present(NULL, NULL, NULL, NULL);
	
	return mrTrue;
}



int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInst,
				   LPSTR lpCmdLine, int nShowCmd)
{
	// Our window
	D3DWindow kWindow;

	// Create a window
	kWindow.Create(hInstance, "D3D Demo");

	// Setup Direct3D
	kWindow.SetupDirect3D();

	// Enter message loop
	kWindow.Run();

	// ShutDown Direct3D
	kWindow.KillDirect3D();

	return 0;
}

Quote:Original post by Esh
Unhandled exception at 0x00411844 in PracticeDirectX.exe: 0xC0000005: Access violation reading location 0x00000000.

I think the problam is because the object that activate the 'CreateDevice' method valus is null.

Quote:Direct3D9: (ERROR) :BackBufferCount must be less than D3DPRESENT_BACK_BUFFERS_MAX. ValidatePresentParameters fails.
D3D9 Helper: IDirect3D9::CreateDevice failed: D3DERR_INVALIDCALL