1、加载位图
2、建立兼容DC
3、选择之前的位图对象
4、用贴图函数BitBlt()
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HBITMAP bitmap=(HBITMAP)LoadImage(NULL,L"Name.bmp",IMAGE_BITMAP,high,length,LR_LOADFROMFILE); HWND tmp=CreateCompatiable(g_hdc); SelectObject(tmp,bitmap); BitBlt(g_hdc,0,0,high,length,tmp,0,0,SRCCOPY); |
Demo完整代码:
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#include <windows.h> #include <time.h> const int TAR_HIGH=800; const int TAR_WEIGHT=600; const wchar_t TAR_TITLE[]=L"致我们不磨灭的青春和理想-建大英雄传"; HDC g_hdc=NULL; HDC g_mdc=NULL; HBITMAP g_hbitmap=NULL; void Game_Paint(HWND hwnd) { SelectObject(g_mdc,g_hbitmap); BitBlt(g_hdc,0,0,TAR_HIGH,TAR_WEIGHT,g_mdc,0,0,SRCCOPY); } bool Game_Init(HWND hwnd) { g_hdc=GetDC(hwnd); //在这里做初始化工作 g_hbitmap=(HBITMAP)LoadImage(NULL,L"content.bmp",IMAGE_BITMAP,TAR_HIGH,TAR_WEIGHT,LR_LOADFROMFILE); //建立DC g_mdc=CreateCompatibleDC(g_hdc); Game_Paint(hwnd); ReleaseDC(hwnd,g_hdc); return 1; } bool Game_Clear(HWND hwnd) { DeleteObject(g_hbitmap); DeleteDC(g_mdc); return 1; } LRESULT CALLBACK SdjzuProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam) { switch(message) { PAINTSTRUCT paintstruct; case WM_PAINT: //新增设备环境句柄调用 g_hdc=BeginPaint(hwnd,&paintstruct); Game_Init(hwnd); EndPaint(hwnd,&paintstruct); ValidateRect(hwnd,NULL); break; case WM_KEYDOWN: if(wParam=VK_ESCAPE) DestroyWindow(hwnd); break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hwnd,message,wParam,lParam); } return 0; } int WINAPI WinMain( __in HINSTANCE hInstance, __in_opt HINSTANCE hPrevInstance, __in LPSTR lpCmdLine, __in int nShowCmd ) { WNDCLASSEX wndclass={0}; wndclass.cbSize=sizeof(WNDCLASSEX); wndclass.style=CS_HREDRAW|CS_VREDRAW; wndclass.lpfnWndProc=SdjzuProc; wndclass.cbClsExtra=0; wndclass.cbWndExtra=0; wndclass.hInstance=hInstance; wndclass.hIcon=(HICON)::LoadImage(NULL,L"tarico.ico",IMAGE_ICON,0,0,LR_DEFAULTSIZE|LR_LOADFROMFILE); wndclass.hCursor=LoadCursor(NULL,IDC_ARROW); wndclass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH); wndclass.lpszMenuName=NULL; wndclass.lpszClassName=L"sdjzuhero"; //注册窗口 if(!RegisterClassEx(&wndclass)) return -1; HWND hwnd=CreateWindow(L"sdjzuhero",TAR_TITLE,WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX,CW_USEDEFAULT,CW_USEDEFAULT,TAR_HIGH,TAR_WEIGHT,NULL,NULL,hInstance,NULL);//第三个参数控制了窗口的样式，合集为WS_OVERLAPPEDWINDOW MoveWindow(hwnd,250,80,TAR_HIGH,TAR_WEIGHT,true); ShowWindow(hwnd,nShowCmd); UpdateWindow(hwnd); //载入报错模块 MSG msg={0}; while(msg.message!=WM_QUIT) { if(PeekMessage(&msg,0,0,0,PM_REMOVE)) { TranslateMessage(&msg); DispatchMessage(&msg); } } UnregisterClass(L"sdjzuhero",wndclass.hInstance); return 0; } |
刚开始试了几次没有成功，发现是在WndProc里对函数的调用出错了，没有执行init部分，改成init之后问题解决。看来与ACM一样，不能唯别人的模板是从，还是应该理解后加以修改，以更好的利用。
