i need help, i was using tutorial for DX9, for colorkey using D3DXSprite, the code was lpD3DSprite->Begin(D3DXSPRITE_ALPHABLEND), but in DX8, the Begin Function doesn't accept any parameters...so how do i use color keying ? i also want to ask how can i achive some thing like alpha masking..i mean like the texture is look fading only on the edge, it's using alpha channel from the picture(32bit bmp or png ?? i tried but failed) or using another texture as the mask and do some blending ? i create my texture like this : LPDIRECT3DTEXTURE8 lpD3DTexture = NULL; D3DXCreateTextureFromFileEx(lpD3DDevice, _lpszFileName, D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT, NULL, D3DFMT_X8R8G8B8, D3DPOOL_MANAGED, D3DX_DEFAULT, D3DX_DEFAULT, 0xff00ff00, NULL, NULL, &lpD3DTexture); the lasting is how can i make my application switcing windowed and fullscreen back and forth ? because i tried and after i switch mode, i only get blak screen. this is how i switch my screen mode in my main loop: if(KeyDown(VK_F2)) { SafeRelease(lpD3DSprite); SafeReleaes(lpD3DDevice); DestroyWindow(g_hWnd); g_fFullScreen = !g_fFullScreen; //boolean flag for screen mode myCreateWindow(); //create a popup or overlappedwindowed window CreateScreen(); } void CreateScreen() { ZeroMemory(&D3DPP, sizeof(D3DPRESENT_PARAMETERS)); if(g_fFullScreen) { D3DPP.Windowed = false; D3DPP.BackBufferWidth = iScreenWidth; D3DPP.BackBufferHeight = iScreenHeight; switch(iScreenBPP) { case 32 : D3DPP.BackBufferFormat = D3DFMT_X8R8G8B8; break; case 16 : D3DPP.BackBufferFormat = D3DFMT_X1R5G5B5; break; default : D3DPP.BackBufferFormat = D3DFMT_X8R8G8B8; } if(FAILED(lpD3D->CheckDeviceType(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, D3DPP.BackBufferFormat, D3DPP.BackBufferFormat, false))) { MessageBox(NULL, "Failed To Check Direct3D Device Type", CLASSNAME, 0); return false; } } else { D3DDISPLAYMODE D3DDM; D3DPP.Windowed = true; D3DPP.hDeviceWindow = g_hWnd; lpD3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT, &D3DDM); D3DPP.BackBufferFormat = D3DDM.Format; } D3DPP.BackBufferCount = 1; D3DPP.SwapEffect = D3DSWAPEFFECT_DISCARD; D3DPP.EnableAutoDepthStencil = true; D3DPP.AutoDepthStencilFormat = D3DFMT_D16; if(FAILED(lpD3D->CheckDeviceFormat(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, D3DPP.BackBufferFormat, D3DUSAGE_DEPTHSTENCIL, D3DRTYPE_SURFACE, D3DPP.AutoDepthStencilFormat))) { MessageBox(NULL, "Failed To Check Direct3D Device ZBuffer Format" , CLASSNAME, 0); return false; } if(FAILED(lpD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &D3DPP, &lpD3DDevice))) { MessageBox(NULL, "Failed To Create Direct3D Device", CLASSNAME, 0); return false; } lpD3DDevice->SetRenderState(D3DRS_ZENABLE, true); lpD3DDevice->SetRenderState(D3DRS_LIGHTING, false); lpD3DDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, true); lpD3DDevice->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA); lpD3DDevice->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA); if(FAILED(D3DXCreateSprite(lpD3DDevice, &lpD3DSprite))) { MessageBox(NULL, "Failed To Create Direct3D Sprite", CLASSNAME, 0); return false; } }