window窗口输出图片

最新推荐文章于 2022-12-12 23:05:19 发布

caiqm_kid

最新推荐文章于 2022-12-12 23:05:19 发布

阅读量884

点赞数

CC 4.0 BY-SA版权

分类专栏： Window API 文章标签： window窗口输出图片

本文链接：https://blog.youkuaiyun.com/caiqm_kid/article/details/44811879

Window API 专栏收录该内容

2 篇文章

订阅专栏

#include <Windows.h>
HDC g_hdc = NULL,g_mdc = NULL;
HBITMAP g_hitmap = NULL;
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
BOOL Game_Init(HWND hwnd);
VOID Game_Paint(HWND hwnd);
BOOL Game_CleanUp(HWND hwnd);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdline, int nCmdShow){
	static TCHAR CAIQM[] = L"Caiqm";
	WNDCLASS ws;
	PlaySound(L"nit.wav", 0, SND_FILENAME | SND_ASYNC);
	ws.style = CS_HREDRAW | CS_VREDRAW;
	ws.hInstance = hInstance;
	ws.cbClsExtra = 0;
	ws.cbWndExtra = 0;
	ws.hIcon = (HICON)::LoadImage(NULL, L"icon.ico", IMAGE_ICON, 0, 0, LR_DEFAULTSIZE | LR_LOADFROMFILE);
	ws.hCursor = LoadCursor(NULL, IDC_ARROW);
	ws.hbrBackground = (HBRUSH)GetStockObject(GRAY_BRUSH);
	ws.lpszClassName = CAIQM;
	ws.lpszMenuName = NULL;
	ws.lpfnWndProc = WndProc;
	if (!RegisterClass(&ws)) return -1;
	HWND hwnd = CreateWindow(CAIQM, CAIQM, WS_OVERLAPPEDWINDOW, 100, 100, 800, 600, NULL, NULL, hInstance, NULL);
	ShowWindow(hwnd, nCmdShow);
	UpdateWindow(hwnd);
	if (!Game_Init(hwnd)){
		MessageBox(hwnd, L"初始化失败", L"消息框", 0);
	}
	MSG msg;
	while (GetMessage(&msg, NULL, 0, 0)){
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}
	return msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam){
	PAINTSTRUCT paintstruct;
	switch (msg){
	case WM_DESTROY:
		PostQuitMessage(0);
		break;
	case WM_KEYDOWN:
		if (wParam == VK_ESCAPE){
			DestroyWindow(hwnd);
		}
		break;
	case WM_PAINT:
		g_hdc = BeginPaint(hwnd,&paintstruct);
		Game_Paint(hwnd);
		Game_CleanUp(hwnd);
		ValidateRect(hwnd,NULL);
		break;
	default:
		return DefWindowProc(hwnd, msg, wParam, lParam);
	}
	return 0;
}
BOOL Game_Init(HWND hwnd){
	g_hdc = GetDC(hwnd);
	g_hitmap = (HBITMAP)LoadImage(NULL, L"Naruto.bmp", IMAGE_BITMAP, 800, 600, LR_LOADFROMFILE);
	g_mdc = CreateCompatibleDC(g_hdc);
	Game_Paint(hwnd);
	ReleaseDC(hwnd, g_hdc);
	return true;
}
VOID Game_Paint(HWND hwnd){
	SelectObject(g_mdc,g_hitmap);
	BitBlt(g_hdc, 0, 0, 800, 600, g_mdc, 0, 0, SRCCOPY);
}
BOOL Game_CleanUp(HWND hwnd){
	DeleteObject(g_hitmap);
	DeleteDC(g_mdc);
	return true;
}