最近、DirectX9にて画像を描画できるようになったのですが、
ウィンドウを最小化すると、ウィンドウが白くなりました。
前回は、ウィンドウを画面買いに出すと白くなるということについて質問しましたが、
その場合は、CALLBACK関数にちょっとだけコードを足すだけで行けました。
コードは以下の通りです。
#include<windows.h> #include<d3d9.h> #include<d3dx9.h> #pragma comment( lib, "d3d9.lib" ) #pragma comment( lib, "d3dx9d.lib" ) #pragma comment( lib, "d3dx9.lib" ) #pragma comment( lib, "dxerr.lib" ) LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp) { switch (msg) { case WM_DESTROY: PostQuitMessage(0); return 0; case WM_ERASEBKGND: return E_FAIL; } return DefWindowProc(hwnd, msg, wp, lp); } int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR lpCmdLine, int nCmdShow) { HWND hwnd; MSG msg; WNDCLASS winc; LPDIRECT3D9 m_pD3D = NULL; D3DPRESENT_PARAMETERS m_D3DPP; D3DDISPLAYMODE d3ddm; LPDIRECT3DDEVICE9 m_pD3DDevice = NULL; LPDIRECT3DTEXTURE9 g_pTexture = NULL; LPD3DXSPRITE g_pSprite = NULL; HRESULT Draw; RECT rc; D3DXVECTOR3 center, position; d3ddm.Width = 1920; d3ddm.Height = 1080; d3ddm.Format = D3DFMT_A8R8G8B8; d3ddm.RefreshRate = 60; winc.style = CS_HREDRAW | CS_VREDRAW; winc.lpfnWndProc = WndProc; winc.cbClsExtra = winc.cbWndExtra = 0; winc.hInstance = hInstance; winc.hIcon = LoadIcon(NULL, IDI_APPLICATION); winc.hCursor = LoadCursor(NULL, IDC_ARROW); winc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); winc.lpszMenuName = NULL; winc.lpszClassName = TEXT("WCN"); if (!RegisterClass(&winc)) return 0; hwnd = CreateWindow( TEXT("WCN"), TEXT("TEST"), WS_OVERLAPPEDWINDOW & ~WS_THICKFRAME & ~WS_MAXIMIZEBOX, 175, 50, 1280, 720, NULL, NULL, hInstance, NULL ); if (hwnd == NULL) return 0; BOOL isFullScreen = FALSE; for (int i = 0; i < __argc; i++) { if (_stricmp(__argv[i], "/f") == 0) { isFullScreen = TRUE; break; } } if ((m_pD3D = ::Direct3DCreate9(D3D_SDK_VERSION)) == 0) { return E_FAIL; } ZeroMemory(&m_D3DPP, sizeof(D3DPRESENT_PARAMETERS)); m_D3DPP.BackBufferCount = 1; if (isFullScreen) { m_D3DPP.Windowed = FALSE; m_D3DPP.BackBufferWidth = 1280; m_D3DPP.BackBufferHeight = 720; } else { m_D3DPP.Windowed = TRUE; } m_D3DPP.BackBufferFormat = d3ddm.Format; m_D3DPP.SwapEffect = D3DSWAPEFFECT_DISCARD; m_D3DPP.EnableAutoDepthStencil = TRUE; m_D3DPP.AutoDepthStencilFormat = D3DFMT_D16; if (FAILED(m_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hwnd, D3DCREATE_HARDWARE_VERTEXPROCESSING, &m_D3DPP, &m_pD3DDevice))) { if (FAILED(m_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hwnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &m_D3DPP, &m_pD3DDevice))) { if (FAILED(m_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_REF, hwnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &m_D3DPP, &m_pD3DDevice))) { return E_FAIL; } } } D3DXCreateTextureFromFile(m_pD3DDevice, TEXT("BG01.png"), &g_pTexture); D3DXCreateSprite(m_pD3DDevice, &g_pSprite); if (FAILED(m_pD3DDevice->BeginScene())) { return 0; } if (FAILED(m_pD3DDevice->Clear(0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(0, 0, 0), 1.0f, 0))) { return 0; } g_pSprite->Begin(NULL); rc.left = 0; rc.top = 0; rc.right = 1280; rc.bottom = 720; center.x = 0; center.y = 0; position.x = 0; position.y = 0; g_pSprite->Draw(g_pTexture, &rc, ¢er, &position, 0xFFFFFFFF); // スプライトの描画処理 g_pSprite->End(); m_pD3DDevice->EndScene(); ShowWindow(hwnd, nCmdShow); if (FAILED(m_pD3DDevice->Present(0, 0, 0, 0))) { m_pD3DDevice->Reset(&m_D3DPP); } while (GetMessage(&msg, NULL, 0, 0)) DispatchMessage(&msg); g_pTexture->Release(); g_pSprite->Release(); return msg.wParam; }
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2020/05/15 09:31