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添加manifest解决IDirect3DDevice9::GetFrontBufferData抓屏返回失败

问题： 通过Direct3D9的接口GetFrontBufferData去实现抓屏，一直返回失败。 原因： 电脑的屏幕分辨率是2560x1600，并且经过150%的缩放，导致创建离屏表面时，通过GetSystemMetrics获取到的屏幕分辨率不是真实的分辨率，是经过缩放的1707x1067 解决办法： 创建离屏表面时，要获取屏幕的真实分

DirectX9:总结篇 IDirect3DDevice9

一.简介   二.IDirect3DDevice9 //d3d9.h#undef INTERFACE#define INTERFACE IDirect3DDevice9DECLARE_INTERFACE_(IDirect3DDevice9, IUnknown){ /*** IUnknown methods ***/ STDMETHOD(QueryInterface)(THIS_ REFIID riid, void** ppvObj) PURE; STDMETHOD_(ULONG,Add

IDirect3DDevice9 StretchRect

  IDirect3DDevice9::StretchRect Copy the contents of the source rectangle to the destination rectangle. The source rectangle can be stretched and filtered by the copy. This function is often used to change the aspect ratio of a video stream. HRESULT Stret