#include <iostream> #include <stdio.h> #include <WINDOWS.H> #include <shellapi.h> #include <gdiplus.h> #include <Shlwapi.h> #pragma comment (lib,"Shlwapi.lib") #pragma comment(lib,"gdiplus.lib") #pragma comment(lib, "shell32.lib") using namespace Gdiplus; int main(int argc, char **argv) { static HMETAFILE hmf; static int cxClient, cyClient; HBRUSH hBrush; HDC hdcMeta; METAFILEPICT mp; HDC hDC; BYTE* buffer; GdiplusStartupInput gdiplusStartupInput; ULONG_PTR gdiplusToken; GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL); hdcMeta = CreateMetaFile("12_.WMF"); hBrush = CreateSolidBrush(RGB(0, 0, 255)); Rectangle(hdcMeta, 0, 0, 100, 100); MoveToEx(hdcMeta, 0, 0, NULL); LineTo(hdcMeta, 100, 100); MoveToEx(hdcMeta, 0, 100, NULL); LineTo(hdcMeta, 100, 0); SelectObject(hdcMeta, hBrush); Ellipse(hdcMeta, 20, 20, 80, 80); hmf = CloseMetaFile(hdcMeta);
UINT nSize = GetMetaFileBitsEx(hmf, 0, NULL);
buffer = (BYTE*)malloc(nSize);int err_1 = GetLastError(); UINT bytesCopy = GetMetaFileBitsEx(hmf, nSize, buffer); HENHMETAFILE hEMF = SetWinMetaFileBits(nSize, buffer, NULL, NULL); int err_2 = GetLastError(); HENHMETAFILE newHEMF = CopyEnhMetaFile(hEMF, "new EMF.emf"); DeleteMetaFile(hmf); GdiplusShutdown(gdiplusToken); return 0; }
GetMetaFileBitsEx需要调用两次,第二次调用是为了填充buffer缓冲区
原文链接: https://www.cnblogs.com/strive-sun/p/11836215.html
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